From c7a79ff47e83a61cfa07cad35067be02896edbce Mon Sep 17 00:00:00 2001
From: tmk <hasu@tmk-kbd.com>
Date: Wed, 30 Nov 2016 13:35:13 +0900
Subject: [PATCH 1/4] Add kl27z_onekey project initial files

---
 keyboard/kl27z_onekey/Makefile            |  70 +++
 keyboard/kl27z_onekey/README.md           |  58 +++
 keyboard/kl27z_onekey/boards/ELF/board.c  | 158 +++++++
 keyboard/kl27z_onekey/boards/ELF/board.h  |  56 +++
 keyboard/kl27z_onekey/boards/ELF/board.mk |   5 +
 keyboard/kl27z_onekey/chconf.h            | 524 ++++++++++++++++++++++
 keyboard/kl27z_onekey/config.h            |  80 ++++
 keyboard/kl27z_onekey/halconf.h           | 187 ++++++++
 keyboard/kl27z_onekey/kl27z.c             | 102 +++++
 keyboard/kl27z_onekey/mcuconf.h           |  80 ++++
 10 files changed, 1320 insertions(+)
 create mode 100644 keyboard/kl27z_onekey/Makefile
 create mode 100644 keyboard/kl27z_onekey/README.md
 create mode 100644 keyboard/kl27z_onekey/boards/ELF/board.c
 create mode 100644 keyboard/kl27z_onekey/boards/ELF/board.h
 create mode 100644 keyboard/kl27z_onekey/boards/ELF/board.mk
 create mode 100644 keyboard/kl27z_onekey/chconf.h
 create mode 100644 keyboard/kl27z_onekey/config.h
 create mode 100644 keyboard/kl27z_onekey/halconf.h
 create mode 100644 keyboard/kl27z_onekey/kl27z.c
 create mode 100644 keyboard/kl27z_onekey/mcuconf.h

diff --git a/keyboard/kl27z_onekey/Makefile b/keyboard/kl27z_onekey/Makefile
new file mode 100644
index 00000000..af37b4ec
--- /dev/null
+++ b/keyboard/kl27z_onekey/Makefile
@@ -0,0 +1,70 @@
+# Target file name (without extension).
+PROJECT = kl27z
+
+# Directory common source files exist
+TMK_DIR = ../../tmk_core
+
+# Directory keyboard dependent files exist
+TARGET_DIR = .
+
+# project specific files
+SRC =	$(PROJECT).c
+
+CONFIG_H = config.h
+
+## chip/board settings
+# - the next two should match the directories in
+#   <chibios>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+# - For Teensies, FAMILY = KINETIS and SERIES is either
+#   KL2x (LC) or K20x (3.0,3.1,3.2).
+MCU_FAMILY = KINETIS
+MCU_SERIES = KL2x
+
+# Linker script to use
+# - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+#   or <this_dir>/ld/
+# - NOTE: a custom ld script is needed for EEPROM on Teensy LC
+# - LDSCRIPT =
+#   - MKL26Z64 for Teensy LC
+#   - MK20DX128 for Teensy 3.0
+#   - MK20DX256 for Teensy 3.1 and 3.2
+MCU_LDSCRIPT = MKL27Z256
+
+# Startup code to use
+#  - it should exist in <chibios>/os/common/ports/ARMCMx/compilers/GCC/mk/
+# - STARTUP =
+#   - kl2x for Teensy LC
+#   - k20x5 for Teensy 3.0
+#   - k20x7 for Teensy 3.1 and 3.2
+MCU_STARTUP = kl2x
+
+# Board: it should exist either in <chibios>/os/hal/boards/
+#  or <this_dir>/boards
+# - BOARD =
+#   - PJRC_TEENSY_LC for Teensy LC
+#   - PJRC_TEENSY_3 for Teensy 3.0
+#   - PJRC_TEENSY_3_1 for Teensy 3.1 or 3.2
+BOARD = ELF
+
+# Cortex version
+# Teensy LC is cortex-m0plus; Teensy 3.x are cortex-m4
+MCU  = cortex-m0plus
+
+# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+# I.e. 6 for Teensy LC; 7 for Teensy 3.x
+ARMV = 6
+
+# Build Options
+#   comment out to disable the options.
+#
+#BOOTMAGIC_ENABLE = yes	# Virtual DIP switch configuration
+## (Note that for BOOTMAGIC on Teensy LC you have to use a custom .ld script.)
+#MOUSEKEY_ENABLE = yes	# Mouse keys
+#EXTRAKEY_ENABLE = yes	# Audio control and System control
+CONSOLE_ENABLE = yes	# Console for debug
+#COMMAND_ENABLE = yes    # Commands for debug and configuration
+#SLEEP_LED_ENABLE = yes  # Breathing sleep LED during USB suspend
+#NKRO_ENABLE = yes	    # USB Nkey Rollover
+
+include $(TMK_DIR)/tool/chibios/common.mk
+include $(TMK_DIR)/tool/chibios/chibios.mk
diff --git a/keyboard/kl27z_onekey/README.md b/keyboard/kl27z_onekey/README.md
new file mode 100644
index 00000000..11a32169
--- /dev/null
+++ b/keyboard/kl27z_onekey/README.md
@@ -0,0 +1,58 @@
+KL27Z128/256 board
+==================
+2016/11/30
+
+KL27Z is configured to use internal 48MHz RC oscillator.
+
+The board has push button on PTA4 and LED on PTD7. The button works as 'a' key and the LED as an indicator for capslock.
+
+
+Resources
+---------
+### Kinetis KL2x
+http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/kinetis-cortex-m-mcus/l-series-ultra-low-power-m0-plus/kinetis-kl2x-48-mhz-usb-ultra-low-power-microcontrollers-based-on-arm-cortex-m0-plus:KL2x
+
+### KL27Z128/256 Data Sheet
+http://www.nxp.com/assets/documents/data/en/data-sheets/KL27P64M48SF6.pdf
+
+### KL27Z128/256 Reference Manual
+http://www.nxp.com/assets/documents/data/en/reference-manuals/KL27P64M48SF6RM.pdf
+
+### Errata
+http://www.nxp.com/assets/documents/data/en/errata/KINETIS_L_1N71K.pdf
+
+>>
+e9457: Kinetis Flashloader/ ROM Bootloader: The peripheral auto-detect code in
+bootloader can falsely detect presence of SPI host causing non-responsive
+bootloader
+Description: During the active peripheral detection process, the bootloader can interpret spurious data on
+the SPI peripheral as valid data. The spurious data causes the bootloader to shutdown all
+peripherals except the “falsely detected" SPI and enter the command phase loop using the
+SPI. After the bootloader enters the command phase loop using the SPI, the other peripherals
+are ignored, so the desired peripheral is no longer active.
+The bootloader will not falsely detect activity on the I2C, UART, or USB interfaces, so only the
+SPI interface is affected.
+Workaround: Ensure that there is an external pull-up on the SPI chip-select pin or that the pin is driven high.
+This will prevent the bootloader from seeing spurious data due to activity on the SPI clock pin.
+
+### Kinetis Bootloader and blhost
+http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/kinetis-cortex-m-mcus/kinetis-symbols-footprints-and-models/kinetis-bootloader:KBOOT
+
+
+Build
+-----
+
+    make
+
+
+Program
+-------
+Flash firmware with ROM bootloader.
+
+    blhost -u -- flash-image  build/kl27z.hex erase
+
+
+TODO
+----
+- Fix boards/ELF files
+- add macro `USBx_CTL_RESUME` to ChibiOS-Contrib/os/common/ext/CMSIS/KINETIS/kl27zxxx.h
diff --git a/keyboard/kl27z_onekey/boards/ELF/board.c b/keyboard/kl27z_onekey/boards/ELF/board.c
new file mode 100644
index 00000000..bf8c4686
--- /dev/null
+++ b/keyboard/kl27z_onekey/boards/ELF/board.c
@@ -0,0 +1,158 @@
+/*
+    ChibiOS - (C) 2015-2016 flabbergast <s3+flabbergast@sdfeu.org>
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_PAL || defined(__DOXYGEN__)
+/**
+ * @brief   PAL setup.
+ * @details Digital I/O ports static configuration as defined in @p board.h.
+ *          This variable is used by the HAL when initializing the PAL driver.
+ */
+const PALConfig pal_default_config =
+{
+    .ports = {
+        {
+            /*
+             * PORTA setup.
+             *
+             * on pads: PTA1, PTA2, PTA5, PTA18, PTA19
+             *
+             * PTA0/3 SWD (default SWD, ALT_7: SWD, ALT_1: PTA0/3)
+             * PTA4 NMI button (default NMI_b, ALT_1: PTA4)
+             * PTA20 RESET button (default RESET, ALT_7: RESET, ALT_1: PTA20)
+             */
+            .port = IOPORT1,
+            .pads = {
+                PAL_MODE_ALTERNATIVE_7,     PAL_MODE_INPUT_PULLUP,      PAL_MODE_OUTPUT_PUSHPULL,
+                PAL_MODE_ALTERNATIVE_7,     PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_INPUT_ANALOG,      PAL_MODE_INPUT_ANALOG,      PAL_MODE_ALTERNATIVE_7,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+            },
+        },
+        {
+            /*
+             * PORTB setup.
+             *
+             * on pads: PTB0, PTB1
+             * LED: PTB18
+             */
+            .port = IOPORT2,
+            .pads = {
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,      PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_OUTPUT_PUSHPULL,   PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+            },
+        },
+        {
+            /*
+             * PORTC setup.
+             *
+             * on pads: PTC1, PTC2, PTC3, PTC6, PTC7, PTC8, PTC9
+             */
+            .port = IOPORT3,
+            .pads = {
+                PAL_MODE_UNCONNECTED,       PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+            },
+        },
+        {
+            /*
+             * PORTD setup.
+             *
+             * on pads: PTD0 - PTD7
+             */
+            .port = IOPORT4,
+            .pads = {
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_OUTPUT_PUSHPULL,   PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+            },
+        },
+        {
+            /*
+             * PORTE setup.
+             *
+             * on pads: PTE0, PTE1, PTE24, PTE25, PTE29, PTE30
+             */
+            .port = IOPORT5,
+            .pads = {
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,      PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_OUTPUT_PUSHPULL,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,      PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_INPUT_PULLUP,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_UNCONNECTED,
+            },
+        },
+    },
+};
+#endif
+
+/**
+ * @brief   Early initialization code.
+ * @details This initialization must be performed just after stack setup
+ *          and before any other initialization.
+ */
+void __early_init(void) {
+
+  kl2x_clock_init();
+}
+
+/**
+ * @brief   Board-specific initialization code.
+ * @todo    Add your board-specific code, if any.
+ */
+void boardInit(void) {
+}
diff --git a/keyboard/kl27z_onekey/boards/ELF/board.h b/keyboard/kl27z_onekey/boards/ELF/board.h
new file mode 100644
index 00000000..8f6fec45
--- /dev/null
+++ b/keyboard/kl27z_onekey/boards/ELF/board.h
@@ -0,0 +1,56 @@
+/*
+    ChibiOS - (C) 2015-2016 flabbergast <s3+flabbergast@sdfeu.org>
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#ifndef _BOARD_H_
+#define _BOARD_H_
+
+/*
+ * Setup for a custom KL27Z breakout board.
+ */
+
+/*
+ * Board identifier.
+ */
+#define BOARD_KL27Z_BREAKOUT
+#define BOARD_NAME                  "Custom KL27Z breakout"
+
+/*
+ * MCU type
+ */
+#define KL27Zxxx
+
+/*
+ * Onboard features.
+ */
+//#define GPIO_LED    IOPORT1
+//#define PIN_LED     2
+// PTD7 on ELF
+#define GPIO_LED    IOPORT4
+#define PIN_LED     7
+#define GPIO_BUTTON IOPORT1
+#define PIN_BUTTON  4
+
+#if !defined(_FROM_ASM_)
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void boardInit(void);
+#ifdef __cplusplus
+}
+#endif
+#endif /* _FROM_ASM_ */
+
+#endif /* _BOARD_H_ */
diff --git a/keyboard/kl27z_onekey/boards/ELF/board.mk b/keyboard/kl27z_onekey/boards/ELF/board.mk
new file mode 100644
index 00000000..f0c8b4b3
--- /dev/null
+++ b/keyboard/kl27z_onekey/boards/ELF/board.mk
@@ -0,0 +1,5 @@
+# List of all the board related files.
+BOARDSRC = ./boards/ELF/board.c
+
+# Required include directories
+BOARDINC = ./boards/ELF
diff --git a/keyboard/kl27z_onekey/chconf.h b/keyboard/kl27z_onekey/chconf.h
new file mode 100644
index 00000000..cb36996c
--- /dev/null
+++ b/keyboard/kl27z_onekey/chconf.h
@@ -0,0 +1,524 @@
+/*
+    ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    templates/chconf.h
+ * @brief   Configuration file template.
+ * @details A copy of this file must be placed in each project directory, it
+ *          contains the application specific kernel settings.
+ *
+ * @addtogroup config
+ * @details Kernel related settings and hooks.
+ * @{
+ */
+
+#ifndef CHCONF_H
+#define CHCONF_H
+
+#define _CHIBIOS_RT_CONF_
+
+/*===========================================================================*/
+/**
+ * @name System timers settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   System time counter resolution.
+ * @note    Allowed values are 16 or 32 bits.
+ */
+#define CH_CFG_ST_RESOLUTION                32
+
+/**
+ * @brief   System tick frequency.
+ * @details Frequency of the system timer that drives the system ticks. This
+ *          setting also defines the system tick time unit.
+ */
+#define CH_CFG_ST_FREQUENCY                 1000
+
+/**
+ * @brief   Time delta constant for the tick-less mode.
+ * @note    If this value is zero then the system uses the classic
+ *          periodic tick. This value represents the minimum number
+ *          of ticks that is safe to specify in a timeout directive.
+ *          The value one is not valid, timeouts are rounded up to
+ *          this value.
+ */
+#define CH_CFG_ST_TIMEDELTA                 0
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Kernel parameters and options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Round robin interval.
+ * @details This constant is the number of system ticks allowed for the
+ *          threads before preemption occurs. Setting this value to zero
+ *          disables the preemption for threads with equal priority and the
+ *          round robin becomes cooperative. Note that higher priority
+ *          threads can still preempt, the kernel is always preemptive.
+ * @note    Disabling the round robin preemption makes the kernel more compact
+ *          and generally faster.
+ * @note    The round robin preemption is not supported in tickless mode and
+ *          must be set to zero in that case.
+ */
+#define CH_CFG_TIME_QUANTUM                 20
+
+/**
+ * @brief   Managed RAM size.
+ * @details Size of the RAM area to be managed by the OS. If set to zero
+ *          then the whole available RAM is used. The core memory is made
+ *          available to the heap allocator and/or can be used directly through
+ *          the simplified core memory allocator.
+ *
+ * @note    In order to let the OS manage the whole RAM the linker script must
+ *          provide the @p __heap_base__ and @p __heap_end__ symbols.
+ * @note    Requires @p CH_CFG_USE_MEMCORE.
+ */
+#define CH_CFG_MEMCORE_SIZE                 0
+
+/**
+ * @brief   Idle thread automatic spawn suppression.
+ * @details When this option is activated the function @p chSysInit()
+ *          does not spawn the idle thread. The application @p main()
+ *          function becomes the idle thread and must implement an
+ *          infinite loop.
+ */
+#define CH_CFG_NO_IDLE_THREAD               FALSE
+
+/* Use __WFI in the idle thread for waiting. Does lower the power
+ * consumption. */
+#define CORTEX_ENABLE_WFI_IDLE              TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Performance options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   OS optimization.
+ * @details If enabled then time efficient rather than space efficient code
+ *          is used when two possible implementations exist.
+ *
+ * @note    This is not related to the compiler optimization options.
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_OPTIMIZE_SPEED               TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Subsystem options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Time Measurement APIs.
+ * @details If enabled then the time measurement APIs are included in
+ *          the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_TM                       FALSE
+
+/**
+ * @brief   Threads registry APIs.
+ * @details If enabled then the registry APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_REGISTRY                 TRUE
+
+/**
+ * @brief   Threads synchronization APIs.
+ * @details If enabled then the @p chThdWait() function is included in
+ *          the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_WAITEXIT                 TRUE
+
+/**
+ * @brief   Semaphores APIs.
+ * @details If enabled then the Semaphores APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_SEMAPHORES               TRUE
+
+/**
+ * @brief   Semaphores queuing mode.
+ * @details If enabled then the threads are enqueued on semaphores by
+ *          priority rather than in FIFO order.
+ *
+ * @note    The default is @p FALSE. Enable this if you have special
+ *          requirements.
+ * @note    Requires @p CH_CFG_USE_SEMAPHORES.
+ */
+#define CH_CFG_USE_SEMAPHORES_PRIORITY      FALSE
+
+/**
+ * @brief   Mutexes APIs.
+ * @details If enabled then the mutexes APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MUTEXES                  TRUE
+
+/**
+ * @brief   Enables recursive behavior on mutexes.
+ * @note    Recursive mutexes are heavier and have an increased
+ *          memory footprint.
+ *
+ * @note    The default is @p FALSE.
+ * @note    Requires @p CH_CFG_USE_MUTEXES.
+ */
+#define CH_CFG_USE_MUTEXES_RECURSIVE        FALSE
+
+/**
+ * @brief   Conditional Variables APIs.
+ * @details If enabled then the conditional variables APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_MUTEXES.
+ */
+#define CH_CFG_USE_CONDVARS                 TRUE
+
+/**
+ * @brief   Conditional Variables APIs with timeout.
+ * @details If enabled then the conditional variables APIs with timeout
+ *          specification are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_CONDVARS.
+ */
+#define CH_CFG_USE_CONDVARS_TIMEOUT         TRUE
+
+/**
+ * @brief   Events Flags APIs.
+ * @details If enabled then the event flags APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_EVENTS                   TRUE
+
+/**
+ * @brief   Events Flags APIs with timeout.
+ * @details If enabled then the events APIs with timeout specification
+ *          are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_EVENTS.
+ */
+#define CH_CFG_USE_EVENTS_TIMEOUT           TRUE
+
+/**
+ * @brief   Synchronous Messages APIs.
+ * @details If enabled then the synchronous messages APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MESSAGES                 TRUE
+
+/**
+ * @brief   Synchronous Messages queuing mode.
+ * @details If enabled then messages are served by priority rather than in
+ *          FIFO order.
+ *
+ * @note    The default is @p FALSE. Enable this if you have special
+ *          requirements.
+ * @note    Requires @p CH_CFG_USE_MESSAGES.
+ */
+#define CH_CFG_USE_MESSAGES_PRIORITY        FALSE
+
+/**
+ * @brief   Mailboxes APIs.
+ * @details If enabled then the asynchronous messages (mailboxes) APIs are
+ *          included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_SEMAPHORES.
+ */
+#define CH_CFG_USE_MAILBOXES                TRUE
+
+/**
+ * @brief   Core Memory Manager APIs.
+ * @details If enabled then the core memory manager APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MEMCORE                  TRUE
+
+/**
+ * @brief   Heap Allocator APIs.
+ * @details If enabled then the memory heap allocator APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_MEMCORE and either @p CH_CFG_USE_MUTEXES or
+ *          @p CH_CFG_USE_SEMAPHORES.
+ * @note    Mutexes are recommended.
+ */
+#define CH_CFG_USE_HEAP                     TRUE
+
+/**
+ * @brief   Memory Pools Allocator APIs.
+ * @details If enabled then the memory pools allocator APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MEMPOOLS                 TRUE
+
+/**
+ * @brief   Dynamic Threads APIs.
+ * @details If enabled then the dynamic threads creation APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_WAITEXIT.
+ * @note    Requires @p CH_CFG_USE_HEAP and/or @p CH_CFG_USE_MEMPOOLS.
+ */
+#define CH_CFG_USE_DYNAMIC                  TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Debug options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Debug option, kernel statistics.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_STATISTICS                   FALSE
+
+/**
+ * @brief   Debug option, system state check.
+ * @details If enabled the correct call protocol for system APIs is checked
+ *          at runtime.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_SYSTEM_STATE_CHECK           TRUE
+
+/**
+ * @brief   Debug option, parameters checks.
+ * @details If enabled then the checks on the API functions input
+ *          parameters are activated.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_ENABLE_CHECKS                TRUE
+
+/**
+ * @brief   Debug option, consistency checks.
+ * @details If enabled then all the assertions in the kernel code are
+ *          activated. This includes consistency checks inside the kernel,
+ *          runtime anomalies and port-defined checks.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_ENABLE_ASSERTS               TRUE
+
+/**
+ * @brief   Debug option, trace buffer.
+ * @details If enabled then the trace buffer is activated.
+ *
+ * @note    The default is @p CH_DBG_TRACE_MASK_DISABLED.
+ */
+#define CH_DBG_TRACE_MASK                   CH_DBG_TRACE_MASK_DISABLED
+
+/**
+ * @brief   Trace buffer entries.
+ * @note    The trace buffer is only allocated if @p CH_DBG_TRACE_MASK is
+ *          different from @p CH_DBG_TRACE_MASK_DISABLED.
+ */
+#define CH_DBG_TRACE_BUFFER_SIZE            128
+
+/**
+ * @brief   Debug option, stack checks.
+ * @details If enabled then a runtime stack check is performed.
+ *
+ * @note    The default is @p FALSE.
+ * @note    The stack check is performed in a architecture/port dependent way.
+ *          It may not be implemented or some ports.
+ * @note    The default failure mode is to halt the system with the global
+ *          @p panic_msg variable set to @p NULL.
+ */
+#define CH_DBG_ENABLE_STACK_CHECK           TRUE
+
+/**
+ * @brief   Debug option, stacks initialization.
+ * @details If enabled then the threads working area is filled with a byte
+ *          value when a thread is created. This can be useful for the
+ *          runtime measurement of the used stack.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_FILL_THREADS                 TRUE
+
+/**
+ * @brief   Debug option, threads profiling.
+ * @details If enabled then a field is added to the @p thread_t structure that
+ *          counts the system ticks occurred while executing the thread.
+ *
+ * @note    The default is @p FALSE.
+ * @note    This debug option is not currently compatible with the
+ *          tickless mode.
+ */
+#define CH_DBG_THREADS_PROFILING            FALSE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Kernel hooks
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Threads descriptor structure extension.
+ * @details User fields added to the end of the @p thread_t structure.
+ */
+#define CH_CFG_THREAD_EXTRA_FIELDS                                          \
+  /* Add threads custom fields here.*/
+
+/**
+ * @brief   Threads initialization hook.
+ * @details User initialization code added to the @p chThdInit() API.
+ *
+ * @note    It is invoked from within @p chThdInit() and implicitly from all
+ *          the threads creation APIs.
+ */
+#define CH_CFG_THREAD_INIT_HOOK(tp) {                                       \
+  /* Add threads initialization code here.*/                                \
+}
+
+/**
+ * @brief   Threads finalization hook.
+ * @details User finalization code added to the @p chThdExit() API.
+ */
+#define CH_CFG_THREAD_EXIT_HOOK(tp) {                                       \
+  /* Add threads finalization code here.*/                                  \
+}
+
+/**
+ * @brief   Context switch hook.
+ * @details This hook is invoked just before switching between threads.
+ */
+#define CH_CFG_CONTEXT_SWITCH_HOOK(ntp, otp) {                              \
+  /* Context switch code here.*/                                            \
+}
+
+/**
+ * @brief   ISR enter hook.
+ */
+#define CH_CFG_IRQ_PROLOGUE_HOOK() {                                        \
+  /* IRQ prologue code here.*/                                              \
+}
+
+/**
+ * @brief   ISR exit hook.
+ */
+#define CH_CFG_IRQ_EPILOGUE_HOOK() {                                        \
+  /* IRQ epilogue code here.*/                                              \
+}
+
+/**
+ * @brief   Idle thread enter hook.
+ * @note    This hook is invoked within a critical zone, no OS functions
+ *          should be invoked from here.
+ * @note    This macro can be used to activate a power saving mode.
+ */
+#define CH_CFG_IDLE_ENTER_HOOK() {                                          \
+  /* Idle-enter code here.*/                                                \
+}
+
+/**
+ * @brief   Idle thread leave hook.
+ * @note    This hook is invoked within a critical zone, no OS functions
+ *          should be invoked from here.
+ * @note    This macro can be used to deactivate a power saving mode.
+ */
+#define CH_CFG_IDLE_LEAVE_HOOK() {                                          \
+  /* Idle-leave code here.*/                                                \
+}
+
+/**
+ * @brief   Idle Loop hook.
+ * @details This hook is continuously invoked by the idle thread loop.
+ */
+#define CH_CFG_IDLE_LOOP_HOOK() {                                           \
+  /* Idle loop code here.*/                                                 \
+}
+
+/**
+ * @brief   System tick event hook.
+ * @details This hook is invoked in the system tick handler immediately
+ *          after processing the virtual timers queue.
+ */
+#define CH_CFG_SYSTEM_TICK_HOOK() {                                         \
+  /* System tick event code here.*/                                         \
+}
+
+/**
+ * @brief   System halt hook.
+ * @details This hook is invoked in case to a system halting error before
+ *          the system is halted.
+ */
+#define CH_CFG_SYSTEM_HALT_HOOK(reason) {                                   \
+  /* System halt code here.*/                                               \
+}
+
+/**
+ * @brief   Trace hook.
+ * @details This hook is invoked each time a new record is written in the
+ *          trace buffer.
+ */
+#define CH_CFG_TRACE_HOOK(tep) {                                            \
+  /* Trace code here.*/                                                     \
+}
+
+/** @} */
+
+/*===========================================================================*/
+/* Port-specific settings (override port settings defaulted in chcore.h).    */
+/*===========================================================================*/
+
+#endif  /* CHCONF_H */
+
+/** @} */
diff --git a/keyboard/kl27z_onekey/config.h b/keyboard/kl27z_onekey/config.h
new file mode 100644
index 00000000..8aceb7be
--- /dev/null
+++ b/keyboard/kl27z_onekey/config.h
@@ -0,0 +1,80 @@
+/*
+Copyright 2015 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x1111
+#define DEVICE_VER      0x0001
+/* in python2: list(u"whatever".encode('utf-16-le')) */
+/*   at most 32 characters or the ugly hack in usb_main.c borks */
+#define MANUFACTURER "TMK"
+#define USBSTR_MANUFACTURER    'T', '\x00', 'M', '\x00', 'K', '\x00', ' ', '\x00'
+#define PRODUCT "ChibiOS TMK test"
+#define USBSTR_PRODUCT         'C', '\x00', 'h', '\x00', 'i', '\x00', 'b', '\x00', 'i', '\x00', 'O', '\x00', 'S', '\x00', ' ', '\x00', 'T', '\x00', 'M', '\x00', 'K', '\x00', ' ', '\x00', 't', '\x00', 'e', '\x00', 's', '\x00', 't', '\x00'
+#define DESCRIPTION "TMK keyboard firmware over ChibiOS"
+
+/* key matrix size */
+#define MATRIX_ROWS 1
+#define MATRIX_COLS 1
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE    5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+// TODO: add this to ChibiOS-Contrib/os/common/ext/CMSIS/KINETIS/kl27zxxx.h
+#ifndef USBx_CTL_RESUME
+#define USBx_CTL_RESUME              ((uint8_t)0x04) /*!< Executes resume signaling */
+#endif
+
+
+#endif
diff --git a/keyboard/kl27z_onekey/halconf.h b/keyboard/kl27z_onekey/halconf.h
new file mode 100644
index 00000000..b1d2cd55
--- /dev/null
+++ b/keyboard/kl27z_onekey/halconf.h
@@ -0,0 +1,187 @@
+/*
+    ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    templates/halconf.h
+ * @brief   HAL configuration header.
+ * @details HAL configuration file, this file allows to enable or disable the
+ *          various device drivers from your application. You may also use
+ *          this file in order to override the device drivers default settings.
+ *
+ * @addtogroup HAL_CONF
+ * @{
+ */
+
+#ifndef _HALCONF_H_
+#define _HALCONF_H_
+
+#include "mcuconf.h"
+
+/**
+ * @brief   Enables the PAL subsystem.
+ */
+#if !defined(HAL_USE_PAL) || defined(__DOXYGEN__)
+#define HAL_USE_PAL                 TRUE
+#endif
+
+/**
+ * @brief   Enables the ADC subsystem.
+ */
+#if !defined(HAL_USE_ADC) || defined(__DOXYGEN__)
+#define HAL_USE_ADC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the CAN subsystem.
+ */
+#if !defined(HAL_USE_CAN) || defined(__DOXYGEN__)
+#define HAL_USE_CAN                 FALSE
+#endif
+
+/**
+ * @brief   Enables the DAC subsystem.
+ */
+#if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
+#define HAL_USE_DAC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the EXT subsystem.
+ */
+#if !defined(HAL_USE_EXT) || defined(__DOXYGEN__)
+#define HAL_USE_EXT                 FALSE
+#endif
+
+/**
+ * @brief   Enables the GPT subsystem.
+ */
+#if !defined(HAL_USE_GPT) || defined(__DOXYGEN__)
+#define HAL_USE_GPT                 FALSE
+#endif
+
+/**
+ * @brief   Enables the I2C subsystem.
+ */
+#if !defined(HAL_USE_I2C) || defined(__DOXYGEN__)
+#define HAL_USE_I2C                 FALSE
+#endif
+
+/**
+ * @brief   Enables the I2S subsystem.
+ */
+#if !defined(HAL_USE_I2S) || defined(__DOXYGEN__)
+#define HAL_USE_I2S                 FALSE
+#endif
+
+/**
+ * @brief   Enables the ICU subsystem.
+ */
+#if !defined(HAL_USE_ICU) || defined(__DOXYGEN__)
+#define HAL_USE_ICU                 FALSE
+#endif
+
+/**
+ * @brief   Enables the MAC subsystem.
+ */
+#if !defined(HAL_USE_MAC) || defined(__DOXYGEN__)
+#define HAL_USE_MAC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the MMC_SPI subsystem.
+ */
+#if !defined(HAL_USE_MMC_SPI) || defined(__DOXYGEN__)
+#define HAL_USE_MMC_SPI             FALSE
+#endif
+
+/**
+ * @brief   Enables the PWM subsystem.
+ */
+#if !defined(HAL_USE_PWM) || defined(__DOXYGEN__)
+#define HAL_USE_PWM                 FALSE
+#endif
+
+/**
+ * @brief   Enables the RTC subsystem.
+ */
+#if !defined(HAL_USE_RTC) || defined(__DOXYGEN__)
+#define HAL_USE_RTC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the SDC subsystem.
+ */
+#if !defined(HAL_USE_SDC) || defined(__DOXYGEN__)
+#define HAL_USE_SDC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the SERIAL subsystem.
+ */
+#if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__)
+#define HAL_USE_SERIAL              FALSE
+#endif
+
+/**
+ * @brief   Enables the SERIAL over USB subsystem.
+ */
+#if !defined(HAL_USE_SERIAL_USB) || defined(__DOXYGEN__)
+#define HAL_USE_SERIAL_USB          FALSE
+#endif
+
+/**
+ * @brief   Enables the SPI subsystem.
+ */
+#if !defined(HAL_USE_SPI) || defined(__DOXYGEN__)
+#define HAL_USE_SPI                 FALSE
+#endif
+
+/**
+ * @brief   Enables the UART subsystem.
+ */
+#if !defined(HAL_USE_UART) || defined(__DOXYGEN__)
+#define HAL_USE_UART                FALSE
+#endif
+
+/**
+ * @brief   Enables the USB subsystem.
+ */
+#if !defined(HAL_USE_USB) || defined(__DOXYGEN__)
+#define HAL_USE_USB                 TRUE
+#endif
+
+/**
+ * @brief   Enables the WDG subsystem.
+ */
+#if !defined(HAL_USE_WDG) || defined(__DOXYGEN__)
+#define HAL_USE_WDG                 FALSE
+#endif
+
+/*===========================================================================*/
+/* USB driver related settings.                                              */
+/*===========================================================================*/
+
+/**
+ * @brief   Enables synchronous APIs.
+ * @note    Disabling this option saves both code and data space.
+ */
+#if !defined(USB_USE_WAIT) || defined(__DOXYGEN__)
+#define USB_USE_WAIT                TRUE
+#endif
+
+#endif /* _HALCONF_H_ */
+
+/** @} */
diff --git a/keyboard/kl27z_onekey/kl27z.c b/keyboard/kl27z_onekey/kl27z.c
new file mode 100644
index 00000000..4af1beb6
--- /dev/null
+++ b/keyboard/kl27z_onekey/kl27z.c
@@ -0,0 +1,102 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ch.h"
+#include "hal.h"
+
+/*
+ * scan matrix
+ */
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "wait.h"
+#include "matrix.h"
+#include "led.h"
+#include "keymap.h"
+
+
+inline
+uint8_t matrix_rows(void)
+{
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+    return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+    // internal pull-up
+    palSetPadMode(GPIOA, 4, PAL_MODE_INPUT_PULLUP);
+
+    // LED blink
+    palSetPadMode(GPIOD, 7, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPad(GPIOD, 7);
+    chThdSleepMilliseconds(200);
+    palClearPad(GPIOD, 7);
+    chThdSleepMilliseconds(200);
+    palSetPad(GPIOD, 7);
+    chThdSleepMilliseconds(200);
+    palClearPad(GPIOD, 7);
+}
+
+uint8_t matrix_scan(void)
+{
+    return 1;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return !palReadPad(GPIOA, 4);
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    return !palReadPad(GPIOA, 4);
+}
+
+void matrix_print(void)
+{
+}
+
+void led_set(uint8_t usb_led) {
+    if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
+        // output high
+        palSetPadMode(GPIOD, 7, PAL_MODE_OUTPUT_PUSHPULL);
+        palSetPad(GPIOD, 7);
+    } else {
+        // Hi-Z
+        palSetPadMode(GPIOD, 7, PAL_MODE_INPUT);
+    }
+}
+
+
+//
+// Keymap
+//
+const uint8_t keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    {{KC_A}},
+};
+
+const action_t fn_actions[] = {
+};
diff --git a/keyboard/kl27z_onekey/mcuconf.h b/keyboard/kl27z_onekey/mcuconf.h
new file mode 100644
index 00000000..a35e65d8
--- /dev/null
+++ b/keyboard/kl27z_onekey/mcuconf.h
@@ -0,0 +1,80 @@
+/*
+    ChibiOS - (C) 2015-2016 flabbergast <s3+flabbergast@sdfeu.org>
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#ifndef _MCUCONF_H_
+#define _MCUCONF_H_
+
+#define KL2x_MCUCONF
+
+/*
+ * HAL driver system settings.
+ */
+#if 1
+/* High-frequency internal RC, 48MHz, possible USB clock recovery */
+#define KINETIS_MCGLITE_MODE        KINETIS_MCGLITE_MODE_HIRC
+#define KINETIS_SYSCLK_FREQUENCY    48000000UL
+#define KINETIS_CLKDIV1_OUTDIV1     1
+#endif
+
+#if 0
+/* Low-frequency internal RC, 8 MHz mode */
+#define KINETIS_MCGLITE_MODE        KINETIS_MCGLITE_MODE_LIRC8M
+#define KINETIS_SYSCLK_FREQUENCY    8000000UL
+#define KINETIS_CLKDIV1_OUTDIV1     1
+#endif
+
+/*
+ * SERIAL driver system settings.
+ */
+#define KINETIS_SERIAL_USE_UART0              TRUE
+
+/*
+ * USB driver settings
+ */
+#define KINETIS_USB_USE_USB0                  TRUE
+/* need to redefine this, since the default is for K20x */
+#define KINETIS_USB_USB0_IRQ_PRIORITY         2
+
+/*
+ * Kinetis FOPT configuration byte
+ */
+/* for KL27: */
+#define KINETIS_NV_FOPT_BYTE 0x39
+#define KINETIS_NV_FSEC_BYTE 0x7E
+/* NV_FOPT: bit7-6/BOOTSRC_SEL=0b00 (11=from ROM; 00=from FLASH)
+   bit5/FAST_INIT=1, bit4/LPBOOT1=1,
+   bit3/RESET_PIN_CFG=1, bit2/NMI_DIS=1,
+   bit1/BOOTPIN_OPT=0, bit0/LPBOOT0=1 */
+/* BOOTPIN_OPT: 1=boot depends on BOOTSRC_SEL
+   0=boot samples BOOTCFG0=NMI pin */
+/* Boot sequence, page 88 of manual:
+ * - If the NMI/BOOTCFG0 input is high or the NMI function is disabled in FTFA_FOPT, the CPU begins execution at the PC location.
+ * - If the NMI/BOOTCFG0 input is low, the NMI function is enabled in FTFA_FOPT, and FTFA_FOPT[BOOTPIN_OPT] = 1, this results in an NMI interrupt. The processor executes an Exception Entry and reads the NMI interrupt handler address from vector-table offset 8. The CPU begins execution at the NMI interrupt handler.
+ * - When FTFA_FOPT[BOOTPIN_OPT] = 0, it forces boot from ROM if NMI/BOOTCFG0 pin set to 0.
+ *
+ * Observed behaviour:
+ * - when BOOTPIN_OPT=0, BOOTSRC_SEL still matters:
+ *   - if 0b11 (from ROM), it still boots from ROM, even if BOOTCFG0 pin
+ *     is high/floating, but leaves ROM and runs user app after
+ *     5 seconds delay.
+ *   - if 0b00 (from FLASH), reset/powerup jumps to user app unless
+ *     BOOTCFG0 pin is asserted.
+ * - in any case, reset when in bootloader induces the 5 second delay
+ *   before starting the user app.
+ * 
+ */
+
+#endif /* _MCUCONF_H_ */

From 9ea5931785f61224132e28cc9c15dc954568a299 Mon Sep 17 00:00:00 2001
From: tmk <hasu@tmk-kbd.com>
Date: Fri, 2 Dec 2016 10:10:49 +0900
Subject: [PATCH 2/4] Add pinout on README

---
 keyboard/kl27z_onekey/README.md | 48 +++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/keyboard/kl27z_onekey/README.md b/keyboard/kl27z_onekey/README.md
index 11a32169..bca630eb 100644
--- a/keyboard/kl27z_onekey/README.md
+++ b/keyboard/kl27z_onekey/README.md
@@ -7,8 +7,56 @@ KL27Z is configured to use internal 48MHz RC oscillator.
 The board has push button on PTA4 and LED on PTD7. The button works as 'a' key and the LED as an indicator for capslock.
 
 
+ELF board
+---------
+### prototypte pinout
+- pcb layout  https://deskthority.net/resources/image/33293
+- schematic  https://deskthority.net/resources/image/33252
+
+
+    39 .....  44 \ conn / 1 ..... 6
+    38           |______|    LED  7
+     :  Rst                       :
+     :                            :
+    32  Bl                        13
+    31 .........24 23............ 14
+
+    1   PTD6        12  PTC3         23  GND        34  PTE20
+    2   PTD5        13  PTC2         24  PTA18      35  PTA20   Reset
+    3   PTD4        14  PTC1         25  3.3V       36  PTA3    SWD_DIO
+    4   PTD3        15  PTC0         26  NMI        37  PTA0    SWD_CLK
+    5   PTD2        16  PTB17        27  PTA2       38  3.3V
+    6   PTD1        17  PTB16        28  PTA1       39  GND
+    7   PTD0        18  PTB3         29  PTE25      40  VBUS    VREGIN
+    8   PTC7        19  PTB2         30  PTE24      41  USB D-
+    9   PTC6        20  PTB1         31  PTE30      42  USB D+
+    10  PTC5        21  PTB0         32  PTE29      43  GND
+    11  PTC4        22  PTA19        33  PTE21      44  USB Shield
+
+### ROM bootloader pins
+See Reference Manual Chapter 13.
+
+    PTA2 LPUART0_TX
+    PTA1 LPUART0_RX *
+    PTB0 I2C0_SCL
+    PTB1 I2C0_SDA
+    PTC4 SPI0_SS_b *
+    PTC7 SPI0_MISO
+    PTC6 SPI0_MOSI
+    PTC5 SPI0_SCK *
+
+Due to errata e9457, need to pull-up `SPI0_SS_b`(or `SPI0_SCK`) to prevent false detection of SPI.
+The errata doesn't refer UART though, `LPUART0_RX` also requires pull-up or down resisitor from experience. 
+Without resistor it easily false-detects activity on UART interface with finger touch on the pin.
+
+
+
+
 Resources
 ---------
+### Deskthority thread
+https://deskthority.net/workshop-f7/can-we-design-the-teensy-alternative-for-keyboards-t13662-510.html
+
 ### Kinetis KL2x
 http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/kinetis-cortex-m-mcus/l-series-ultra-low-power-m0-plus/kinetis-kl2x-48-mhz-usb-ultra-low-power-microcontrollers-based-on-arm-cortex-m0-plus:KL2x
 

From 657193dd6c0bafff9bc5f8125c4b050e30c1e82c Mon Sep 17 00:00:00 2001
From: tmk <hasu@tmk-kbd.com>
Date: Mon, 5 Dec 2016 11:49:39 +0900
Subject: [PATCH 3/4] Fix filename and Makefile

---
 keyboard/kl27z_onekey/Makefile                |  2 +-
 keyboard/kl27z_onekey/README.md               | 56 ++++++++++++++++---
 .../kl27z_onekey/{kl27z.c => kl27z_onekey.c}  |  0
 3 files changed, 48 insertions(+), 10 deletions(-)
 rename keyboard/kl27z_onekey/{kl27z.c => kl27z_onekey.c} (100%)

diff --git a/keyboard/kl27z_onekey/Makefile b/keyboard/kl27z_onekey/Makefile
index af37b4ec..8179d5bb 100644
--- a/keyboard/kl27z_onekey/Makefile
+++ b/keyboard/kl27z_onekey/Makefile
@@ -1,5 +1,5 @@
 # Target file name (without extension).
-PROJECT = kl27z
+PROJECT = kl27z_onekey
 
 # Directory common source files exist
 TMK_DIR = ../../tmk_core
diff --git a/keyboard/kl27z_onekey/README.md b/keyboard/kl27z_onekey/README.md
index bca630eb..c2db5e5c 100644
--- a/keyboard/kl27z_onekey/README.md
+++ b/keyboard/kl27z_onekey/README.md
@@ -9,6 +9,8 @@ The board has push button on PTA4 and LED on PTD7. The button works as 'a' key a
 
 ELF board
 ---------
+This board acommodates 48QFN chip.
+
 ### prototypte pinout
 - pcb layout  https://deskthority.net/resources/image/33293
 - schematic  https://deskthority.net/resources/image/33252
@@ -21,17 +23,53 @@ ELF board
     32  Bl                        13
     31 .........24 23............ 14
 
-    1   PTD6        12  PTC3         23  GND        34  PTE20
+    1   PTD6        12  PTC3         23  GND        34  PTE20*
     2   PTD5        13  PTC2         24  PTA18      35  PTA20   Reset
     3   PTD4        14  PTC1         25  3.3V       36  PTA3    SWD_DIO
-    4   PTD3        15  PTC0         26  NMI        37  PTA0    SWD_CLK
-    5   PTD2        16  PTB17        27  PTA2       38  3.3V
-    6   PTD1        17  PTB16        28  PTA1       39  GND
-    7   PTD0        18  PTB3         29  PTE25      40  VBUS    VREGIN
-    8   PTC7        19  PTB2         30  PTE24      41  USB D-
+    4   PTD3*       15  PTC0*        26  PTA4 NMI   37  PTA0    SWD_CLK
+    5   PTD2*       16  PTB17*       27  PTA2       38  3.3V
+    6   PTD1*       17  PTB16*       28  PTA1       39  GND
+    7   PTD0*       18  PTB3*        29  PTE25*     40  VBUS    VREGIN
+    8   PTC7        19  PTB2*        30  PTE24*     41  USB D-
     9   PTC6        20  PTB1         31  PTE30      42  USB D+
-    10  PTC5        21  PTB0         32  PTE29      43  GND
-    11  PTC4        22  PTA19        33  PTE21      44  USB Shield
+    10  PTC5        21  PTB0         32  PTE29*     43  GND
+    11  PTC4        22  PTA19        33  PTE21*     44  USB Shield
+
+
+TMK KL27Z breakout
+------------------
+This board acommodates 48QFN chip.
+
+### Pinputs
+
+    _\ conn /_
+    1       28
+    :        :
+    :  PROG  :
+    :  RST   :
+    14      15
+    ----------
+
+    1  VUSB            28  GND
+    2  VIN VREGIN      27  PTD4
+    3  PTD5            26  PTC7
+    4  PTD6            25  PTC6
+    5  PTD7            24  PTC5
+    6  PTE0*           23  PTC4
+
+    7  3.3V            22  GND
+    8  PTE30           21  PTC3
+    9  PTA0 SWD_CLK    20  PTC2
+    10 PTA1            19  PTC1
+    11 PTA2            18  PTB1
+    12 PTA3 SWD_DIO    17  PTB0
+    13 PTA4 NMI        16  PTA20 Reset
+    14 PTA18           15  PTA19
+
+
+#### Pinouts difference between 32QFN and 48QFN
+48QFN doesn't have PTE0
+32QFN doesn't have PTD0-3, PTC0, PTE20-21,24,25,29, PTB2-3,16,17
 
 ### ROM bootloader pins
 See Reference Manual Chapter 13.
@@ -46,7 +84,7 @@ See Reference Manual Chapter 13.
     PTC5 SPI0_SCK *
 
 Due to errata e9457, need to pull-up `SPI0_SS_b`(or `SPI0_SCK`) to prevent false detection of SPI.
-The errata doesn't refer UART though, `LPUART0_RX` also requires pull-up or down resisitor from experience. 
+The errata doesn't refer UART though, `LPUART0_RX` also requires pull-up or down resisitor from experience.
 Without resistor it easily false-detects activity on UART interface with finger touch on the pin.
 
 
diff --git a/keyboard/kl27z_onekey/kl27z.c b/keyboard/kl27z_onekey/kl27z_onekey.c
similarity index 100%
rename from keyboard/kl27z_onekey/kl27z.c
rename to keyboard/kl27z_onekey/kl27z_onekey.c

From 2d0e02efe096cdfd7b5c147f763f9bd343330d9d Mon Sep 17 00:00:00 2001
From: tmk <hasu@tmk-kbd.com>
Date: Tue, 6 Dec 2016 11:56:21 +0900
Subject: [PATCH 4/4] Add keyboard/kl27z_kbd

---
 keyboard/kl27z_kbd/Makefile            |  70 ++++
 keyboard/kl27z_kbd/Matrix.txt          |  34 ++
 keyboard/kl27z_kbd/README.md           | 161 ++++++++
 keyboard/kl27z_kbd/boards/ELF/board.c  | 158 ++++++++
 keyboard/kl27z_kbd/boards/ELF/board.h  |  56 +++
 keyboard/kl27z_kbd/boards/ELF/board.mk |   5 +
 keyboard/kl27z_kbd/chconf.h            | 524 +++++++++++++++++++++++++
 keyboard/kl27z_kbd/config.h            |  80 ++++
 keyboard/kl27z_kbd/halconf.h           | 187 +++++++++
 keyboard/kl27z_kbd/kl27z_kbd.c         | 234 +++++++++++
 keyboard/kl27z_kbd/mcuconf.h           |  80 ++++
 11 files changed, 1589 insertions(+)
 create mode 100644 keyboard/kl27z_kbd/Makefile
 create mode 100644 keyboard/kl27z_kbd/Matrix.txt
 create mode 100644 keyboard/kl27z_kbd/README.md
 create mode 100644 keyboard/kl27z_kbd/boards/ELF/board.c
 create mode 100644 keyboard/kl27z_kbd/boards/ELF/board.h
 create mode 100644 keyboard/kl27z_kbd/boards/ELF/board.mk
 create mode 100644 keyboard/kl27z_kbd/chconf.h
 create mode 100644 keyboard/kl27z_kbd/config.h
 create mode 100644 keyboard/kl27z_kbd/halconf.h
 create mode 100644 keyboard/kl27z_kbd/kl27z_kbd.c
 create mode 100644 keyboard/kl27z_kbd/mcuconf.h

diff --git a/keyboard/kl27z_kbd/Makefile b/keyboard/kl27z_kbd/Makefile
new file mode 100644
index 00000000..369054f1
--- /dev/null
+++ b/keyboard/kl27z_kbd/Makefile
@@ -0,0 +1,70 @@
+# Target file name (without extension).
+PROJECT = kl27z_kbd
+
+# Directory common source files exist
+TMK_DIR = ../../tmk_core
+
+# Directory keyboard dependent files exist
+TARGET_DIR = .
+
+# project specific files
+SRC =	$(PROJECT).c
+
+CONFIG_H = config.h
+
+## chip/board settings
+# - the next two should match the directories in
+#   <chibios>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+# - For Teensies, FAMILY = KINETIS and SERIES is either
+#   KL2x (LC) or K20x (3.0,3.1,3.2).
+MCU_FAMILY = KINETIS
+MCU_SERIES = KL2x
+
+# Linker script to use
+# - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+#   or <this_dir>/ld/
+# - NOTE: a custom ld script is needed for EEPROM on Teensy LC
+# - LDSCRIPT =
+#   - MKL26Z64 for Teensy LC
+#   - MK20DX128 for Teensy 3.0
+#   - MK20DX256 for Teensy 3.1 and 3.2
+MCU_LDSCRIPT = MKL27Z256
+
+# Startup code to use
+#  - it should exist in <chibios>/os/common/ports/ARMCMx/compilers/GCC/mk/
+# - STARTUP =
+#   - kl2x for Teensy LC
+#   - k20x5 for Teensy 3.0
+#   - k20x7 for Teensy 3.1 and 3.2
+MCU_STARTUP = kl2x
+
+# Board: it should exist either in <chibios>/os/hal/boards/
+#  or <this_dir>/boards
+# - BOARD =
+#   - PJRC_TEENSY_LC for Teensy LC
+#   - PJRC_TEENSY_3 for Teensy 3.0
+#   - PJRC_TEENSY_3_1 for Teensy 3.1 or 3.2
+BOARD = ELF
+
+# Cortex version
+# Teensy LC is cortex-m0plus; Teensy 3.x are cortex-m4
+MCU  = cortex-m0plus
+
+# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+# I.e. 6 for Teensy LC; 7 for Teensy 3.x
+ARMV = 6
+
+# Build Options
+#   comment out to disable the options.
+#
+#BOOTMAGIC_ENABLE = yes	# Virtual DIP switch configuration
+## (Note that for BOOTMAGIC on Teensy LC you have to use a custom .ld script.)
+#MOUSEKEY_ENABLE = yes	# Mouse keys
+EXTRAKEY_ENABLE = yes	# Audio control and System control
+CONSOLE_ENABLE = yes	# Console for debug
+#COMMAND_ENABLE = yes    # Commands for debug and configuration
+#SLEEP_LED_ENABLE = yes  # Breathing sleep LED during USB suspend
+#NKRO_ENABLE = yes	    # USB Nkey Rollover
+
+include $(TMK_DIR)/tool/chibios/common.mk
+include $(TMK_DIR)/tool/chibios/chibios.mk
diff --git a/keyboard/kl27z_kbd/Matrix.txt b/keyboard/kl27z_kbd/Matrix.txt
new file mode 100644
index 00000000..05d3a5da
--- /dev/null
+++ b/keyboard/kl27z_kbd/Matrix.txt
@@ -0,0 +1,34 @@
+COL
+---
+Anode side, senses keys with internal pull-up.
+
+Left to right:
+
+    PTD6
+    PTD5
+    PTD4
+    PTD3
+    
+    PTA19
+    PTA18
+    PTA4 NMI
+    PTA2
+    PTA1
+    
+    PTE25
+    PTE24
+    PTE30
+    PTE29
+    PTE21
+    
+ROW
+----
+Cathod side, given strobe with output low.
+
+Top to bottom:
+
+    PTB3
+    PTB16
+    PTB17
+    PTC0
+    PTC1
diff --git a/keyboard/kl27z_kbd/README.md b/keyboard/kl27z_kbd/README.md
new file mode 100644
index 00000000..b10e4b37
--- /dev/null
+++ b/keyboard/kl27z_kbd/README.md
@@ -0,0 +1,161 @@
+KL27Z128/256 board
+==================
+2016/11/30
+
+KL27Z is configured to use internal 48MHz RC oscillator.
+
+The board has push button on PTA4 and LED on PTD7. The button works as 'a' key and the LED as an indicator for capslock.
+
+
+ELF board
+---------
+This board acommodates 48QFN chip.
+
+### prototypte pinout
+- pcb layout  https://deskthority.net/resources/image/33293
+- schematic  https://deskthority.net/resources/image/33252
+
+
+```
+         G           G 
+         N  5  D  D  N  F                      D  D  D  D  D  D
+         D  V  -  +  D  G     \    USB    /    6  5  4  3  2  1
+        ,--------------------- |  Conn   | --------------------.
+        |39 40 41 42 43 44     |         |     1  2  3  4  5  6 |
+    3.3V|38                    |_________|                    7 |D0
+      A0|37  RST                                              8 |C7
+      A3|36                                                   9 |C6
+    +A20|35                                                   10|C5+
+     E20|34                                                   11|C4
+     E21|33  BL                                               12|C3
+     E29|32                                                   13|C2
+        |31 30 29 28 27 26 25 24   23 22 21 20 19 18 17 16 15 14|
+        `-------------------------------------------------------'
+         E  E  E  A  A  A  3  A    G  A  C  B  B  B  B  B  C  C
+         3  2  2  1  2  4  .  1    N  1  1  1  2  3  1  1  0  1
+         0  4  5  +     +  3V 8    D  9              6  7
+
+
+    1   PTD6        12  PTC3         23  GND        34  PTE20*
+    2   PTD5        13  PTC2         24  PTA18      35  PTA20/Reset+
+    3   PTD4        14  PTC1         25  3.3V       36  PTA3/SWD_DIO
+    4   PTD3*       15  PTC0*        26  PTA4/NMI+  37  PTA0/SWD_CLK
+    5   PTD2*       16  PTB17*       27  PTA2       38  3.3V
+    6   PTD1*       17  PTB16*       28  PTA1+      39  GND
+    7   PTD0*       18  PTB3*        29  PTE25*     40  VBUS/VREGIN/5V
+    8   PTC7        19  PTB2*        30  PTE24*     41  USB D-
+    9   PTC6        20  PTB1         31  PTE30      42  USB D+
+    10  PTC5+       21  PTB0         32  PTE29*     43  GND
+    11  PTC4        22  PTA19        33  PTE21*     44  USB Shield/FB
+    +: Pins with resistor or switch
+    *: Pins which don't exist in QFN32
+```
+
+
+TMK KL27Z breakout
+------------------
+This board acommodates 48QFN chip.
+
+### Pinputs
+
+    _\ conn /_
+    1       28
+    :        :
+    :  PROG  :
+    :  RST   :
+    14      15
+    ----------
+
+    1  VUSB            28  GND
+    2  VIN/VREGIN      27  PTD4
+    3  PTD5            26  PTC7
+    4  PTD6            25  PTC6
+    5  PTD7            24  PTC5+
+    6  PTE0*           23  PTC4
+
+    7  3.3V            22  GND
+    8  PTE30           21  PTC3
+    9  PTA0/SWD_CLK    20  PTC2
+    10 PTA1+           19  PTC1
+    11 PTA2            18  PTB1
+    12 PTA3/SWD_DIO    17  PTB0
+    13 PTA4/NMI+       16  PTA20/Reset+
+    14 PTA18           15  PTA19
+    *: Pin which doesn't exist in QFN48
+
+
+#### Pinouts difference between 32QFN and 48QFN
+48QFN doesn't have PTE0
+32QFN doesn't have PTD0-3, PTC0, PTE20-21,24,25,29, PTB2-3,16,17
+
+### ROM bootloader pins
+See Reference Manual Chapter 13.
+
+    PTA2 LPUART0_TX
+    PTA1 LPUART0_RX *
+    PTB0 I2C0_SCL
+    PTB1 I2C0_SDA
+    PTC4 SPI0_SS_b *
+    PTC7 SPI0_MISO
+    PTC6 SPI0_MOSI
+    PTC5 SPI0_SCK *
+
+Due to errata e9457, need to pull-up `SPI0_SS_b`(or `SPI0_SCK`) to prevent false detection of SPI.
+The errata doesn't refer UART though, `LPUART0_RX` also requires pull-up or down resisitor from experience.
+Without resistor it easily false-detects activity on UART interface with finger touch on the pin.
+
+
+
+
+Resources
+---------
+### Deskthority thread
+https://deskthority.net/workshop-f7/can-we-design-the-teensy-alternative-for-keyboards-t13662-510.html
+
+### Kinetis KL2x
+http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/kinetis-cortex-m-mcus/l-series-ultra-low-power-m0-plus/kinetis-kl2x-48-mhz-usb-ultra-low-power-microcontrollers-based-on-arm-cortex-m0-plus:KL2x
+
+### KL27Z128/256 Data Sheet
+http://www.nxp.com/assets/documents/data/en/data-sheets/KL27P64M48SF6.pdf
+
+### KL27Z128/256 Reference Manual
+http://www.nxp.com/assets/documents/data/en/reference-manuals/KL27P64M48SF6RM.pdf
+
+### Errata
+http://www.nxp.com/assets/documents/data/en/errata/KINETIS_L_1N71K.pdf
+
+>>
+e9457: Kinetis Flashloader/ ROM Bootloader: The peripheral auto-detect code in
+bootloader can falsely detect presence of SPI host causing non-responsive
+bootloader
+Description: During the active peripheral detection process, the bootloader can interpret spurious data on
+the SPI peripheral as valid data. The spurious data causes the bootloader to shutdown all
+peripherals except the “falsely detected" SPI and enter the command phase loop using the
+SPI. After the bootloader enters the command phase loop using the SPI, the other peripherals
+are ignored, so the desired peripheral is no longer active.
+The bootloader will not falsely detect activity on the I2C, UART, or USB interfaces, so only the
+SPI interface is affected.
+Workaround: Ensure that there is an external pull-up on the SPI chip-select pin or that the pin is driven high.
+This will prevent the bootloader from seeing spurious data due to activity on the SPI clock pin.
+
+### Kinetis Bootloader and blhost
+http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/kinetis-cortex-m-mcus/kinetis-symbols-footprints-and-models/kinetis-bootloader:KBOOT
+
+
+Build
+-----
+
+    make
+
+
+Program
+-------
+Flash firmware with ROM bootloader.
+
+    blhost -u -- flash-image  build/kl27z.hex erase
+
+
+TODO
+----
+- Fix boards/ELF files
+- add macro `USBx_CTL_RESUME` to ChibiOS-Contrib/os/common/ext/CMSIS/KINETIS/kl27zxxx.h
diff --git a/keyboard/kl27z_kbd/boards/ELF/board.c b/keyboard/kl27z_kbd/boards/ELF/board.c
new file mode 100644
index 00000000..bf8c4686
--- /dev/null
+++ b/keyboard/kl27z_kbd/boards/ELF/board.c
@@ -0,0 +1,158 @@
+/*
+    ChibiOS - (C) 2015-2016 flabbergast <s3+flabbergast@sdfeu.org>
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_PAL || defined(__DOXYGEN__)
+/**
+ * @brief   PAL setup.
+ * @details Digital I/O ports static configuration as defined in @p board.h.
+ *          This variable is used by the HAL when initializing the PAL driver.
+ */
+const PALConfig pal_default_config =
+{
+    .ports = {
+        {
+            /*
+             * PORTA setup.
+             *
+             * on pads: PTA1, PTA2, PTA5, PTA18, PTA19
+             *
+             * PTA0/3 SWD (default SWD, ALT_7: SWD, ALT_1: PTA0/3)
+             * PTA4 NMI button (default NMI_b, ALT_1: PTA4)
+             * PTA20 RESET button (default RESET, ALT_7: RESET, ALT_1: PTA20)
+             */
+            .port = IOPORT1,
+            .pads = {
+                PAL_MODE_ALTERNATIVE_7,     PAL_MODE_INPUT_PULLUP,      PAL_MODE_OUTPUT_PUSHPULL,
+                PAL_MODE_ALTERNATIVE_7,     PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_INPUT_ANALOG,      PAL_MODE_INPUT_ANALOG,      PAL_MODE_ALTERNATIVE_7,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+            },
+        },
+        {
+            /*
+             * PORTB setup.
+             *
+             * on pads: PTB0, PTB1
+             * LED: PTB18
+             */
+            .port = IOPORT2,
+            .pads = {
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,      PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_OUTPUT_PUSHPULL,   PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+            },
+        },
+        {
+            /*
+             * PORTC setup.
+             *
+             * on pads: PTC1, PTC2, PTC3, PTC6, PTC7, PTC8, PTC9
+             */
+            .port = IOPORT3,
+            .pads = {
+                PAL_MODE_UNCONNECTED,       PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+            },
+        },
+        {
+            /*
+             * PORTD setup.
+             *
+             * on pads: PTD0 - PTD7
+             */
+            .port = IOPORT4,
+            .pads = {
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_OUTPUT_PUSHPULL,   PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+            },
+        },
+        {
+            /*
+             * PORTE setup.
+             *
+             * on pads: PTE0, PTE1, PTE24, PTE25, PTE29, PTE30
+             */
+            .port = IOPORT5,
+            .pads = {
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,      PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_OUTPUT_PUSHPULL,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_INPUT_PULLUP,      PAL_MODE_UNCONNECTED,
+                PAL_MODE_UNCONNECTED,       PAL_MODE_UNCONNECTED,       PAL_MODE_INPUT_PULLUP,
+                PAL_MODE_INPUT_PULLUP,      PAL_MODE_UNCONNECTED,
+            },
+        },
+    },
+};
+#endif
+
+/**
+ * @brief   Early initialization code.
+ * @details This initialization must be performed just after stack setup
+ *          and before any other initialization.
+ */
+void __early_init(void) {
+
+  kl2x_clock_init();
+}
+
+/**
+ * @brief   Board-specific initialization code.
+ * @todo    Add your board-specific code, if any.
+ */
+void boardInit(void) {
+}
diff --git a/keyboard/kl27z_kbd/boards/ELF/board.h b/keyboard/kl27z_kbd/boards/ELF/board.h
new file mode 100644
index 00000000..8f6fec45
--- /dev/null
+++ b/keyboard/kl27z_kbd/boards/ELF/board.h
@@ -0,0 +1,56 @@
+/*
+    ChibiOS - (C) 2015-2016 flabbergast <s3+flabbergast@sdfeu.org>
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#ifndef _BOARD_H_
+#define _BOARD_H_
+
+/*
+ * Setup for a custom KL27Z breakout board.
+ */
+
+/*
+ * Board identifier.
+ */
+#define BOARD_KL27Z_BREAKOUT
+#define BOARD_NAME                  "Custom KL27Z breakout"
+
+/*
+ * MCU type
+ */
+#define KL27Zxxx
+
+/*
+ * Onboard features.
+ */
+//#define GPIO_LED    IOPORT1
+//#define PIN_LED     2
+// PTD7 on ELF
+#define GPIO_LED    IOPORT4
+#define PIN_LED     7
+#define GPIO_BUTTON IOPORT1
+#define PIN_BUTTON  4
+
+#if !defined(_FROM_ASM_)
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void boardInit(void);
+#ifdef __cplusplus
+}
+#endif
+#endif /* _FROM_ASM_ */
+
+#endif /* _BOARD_H_ */
diff --git a/keyboard/kl27z_kbd/boards/ELF/board.mk b/keyboard/kl27z_kbd/boards/ELF/board.mk
new file mode 100644
index 00000000..f0c8b4b3
--- /dev/null
+++ b/keyboard/kl27z_kbd/boards/ELF/board.mk
@@ -0,0 +1,5 @@
+# List of all the board related files.
+BOARDSRC = ./boards/ELF/board.c
+
+# Required include directories
+BOARDINC = ./boards/ELF
diff --git a/keyboard/kl27z_kbd/chconf.h b/keyboard/kl27z_kbd/chconf.h
new file mode 100644
index 00000000..cb36996c
--- /dev/null
+++ b/keyboard/kl27z_kbd/chconf.h
@@ -0,0 +1,524 @@
+/*
+    ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    templates/chconf.h
+ * @brief   Configuration file template.
+ * @details A copy of this file must be placed in each project directory, it
+ *          contains the application specific kernel settings.
+ *
+ * @addtogroup config
+ * @details Kernel related settings and hooks.
+ * @{
+ */
+
+#ifndef CHCONF_H
+#define CHCONF_H
+
+#define _CHIBIOS_RT_CONF_
+
+/*===========================================================================*/
+/**
+ * @name System timers settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   System time counter resolution.
+ * @note    Allowed values are 16 or 32 bits.
+ */
+#define CH_CFG_ST_RESOLUTION                32
+
+/**
+ * @brief   System tick frequency.
+ * @details Frequency of the system timer that drives the system ticks. This
+ *          setting also defines the system tick time unit.
+ */
+#define CH_CFG_ST_FREQUENCY                 1000
+
+/**
+ * @brief   Time delta constant for the tick-less mode.
+ * @note    If this value is zero then the system uses the classic
+ *          periodic tick. This value represents the minimum number
+ *          of ticks that is safe to specify in a timeout directive.
+ *          The value one is not valid, timeouts are rounded up to
+ *          this value.
+ */
+#define CH_CFG_ST_TIMEDELTA                 0
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Kernel parameters and options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Round robin interval.
+ * @details This constant is the number of system ticks allowed for the
+ *          threads before preemption occurs. Setting this value to zero
+ *          disables the preemption for threads with equal priority and the
+ *          round robin becomes cooperative. Note that higher priority
+ *          threads can still preempt, the kernel is always preemptive.
+ * @note    Disabling the round robin preemption makes the kernel more compact
+ *          and generally faster.
+ * @note    The round robin preemption is not supported in tickless mode and
+ *          must be set to zero in that case.
+ */
+#define CH_CFG_TIME_QUANTUM                 20
+
+/**
+ * @brief   Managed RAM size.
+ * @details Size of the RAM area to be managed by the OS. If set to zero
+ *          then the whole available RAM is used. The core memory is made
+ *          available to the heap allocator and/or can be used directly through
+ *          the simplified core memory allocator.
+ *
+ * @note    In order to let the OS manage the whole RAM the linker script must
+ *          provide the @p __heap_base__ and @p __heap_end__ symbols.
+ * @note    Requires @p CH_CFG_USE_MEMCORE.
+ */
+#define CH_CFG_MEMCORE_SIZE                 0
+
+/**
+ * @brief   Idle thread automatic spawn suppression.
+ * @details When this option is activated the function @p chSysInit()
+ *          does not spawn the idle thread. The application @p main()
+ *          function becomes the idle thread and must implement an
+ *          infinite loop.
+ */
+#define CH_CFG_NO_IDLE_THREAD               FALSE
+
+/* Use __WFI in the idle thread for waiting. Does lower the power
+ * consumption. */
+#define CORTEX_ENABLE_WFI_IDLE              TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Performance options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   OS optimization.
+ * @details If enabled then time efficient rather than space efficient code
+ *          is used when two possible implementations exist.
+ *
+ * @note    This is not related to the compiler optimization options.
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_OPTIMIZE_SPEED               TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Subsystem options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Time Measurement APIs.
+ * @details If enabled then the time measurement APIs are included in
+ *          the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_TM                       FALSE
+
+/**
+ * @brief   Threads registry APIs.
+ * @details If enabled then the registry APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_REGISTRY                 TRUE
+
+/**
+ * @brief   Threads synchronization APIs.
+ * @details If enabled then the @p chThdWait() function is included in
+ *          the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_WAITEXIT                 TRUE
+
+/**
+ * @brief   Semaphores APIs.
+ * @details If enabled then the Semaphores APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_SEMAPHORES               TRUE
+
+/**
+ * @brief   Semaphores queuing mode.
+ * @details If enabled then the threads are enqueued on semaphores by
+ *          priority rather than in FIFO order.
+ *
+ * @note    The default is @p FALSE. Enable this if you have special
+ *          requirements.
+ * @note    Requires @p CH_CFG_USE_SEMAPHORES.
+ */
+#define CH_CFG_USE_SEMAPHORES_PRIORITY      FALSE
+
+/**
+ * @brief   Mutexes APIs.
+ * @details If enabled then the mutexes APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MUTEXES                  TRUE
+
+/**
+ * @brief   Enables recursive behavior on mutexes.
+ * @note    Recursive mutexes are heavier and have an increased
+ *          memory footprint.
+ *
+ * @note    The default is @p FALSE.
+ * @note    Requires @p CH_CFG_USE_MUTEXES.
+ */
+#define CH_CFG_USE_MUTEXES_RECURSIVE        FALSE
+
+/**
+ * @brief   Conditional Variables APIs.
+ * @details If enabled then the conditional variables APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_MUTEXES.
+ */
+#define CH_CFG_USE_CONDVARS                 TRUE
+
+/**
+ * @brief   Conditional Variables APIs with timeout.
+ * @details If enabled then the conditional variables APIs with timeout
+ *          specification are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_CONDVARS.
+ */
+#define CH_CFG_USE_CONDVARS_TIMEOUT         TRUE
+
+/**
+ * @brief   Events Flags APIs.
+ * @details If enabled then the event flags APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_EVENTS                   TRUE
+
+/**
+ * @brief   Events Flags APIs with timeout.
+ * @details If enabled then the events APIs with timeout specification
+ *          are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_EVENTS.
+ */
+#define CH_CFG_USE_EVENTS_TIMEOUT           TRUE
+
+/**
+ * @brief   Synchronous Messages APIs.
+ * @details If enabled then the synchronous messages APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MESSAGES                 TRUE
+
+/**
+ * @brief   Synchronous Messages queuing mode.
+ * @details If enabled then messages are served by priority rather than in
+ *          FIFO order.
+ *
+ * @note    The default is @p FALSE. Enable this if you have special
+ *          requirements.
+ * @note    Requires @p CH_CFG_USE_MESSAGES.
+ */
+#define CH_CFG_USE_MESSAGES_PRIORITY        FALSE
+
+/**
+ * @brief   Mailboxes APIs.
+ * @details If enabled then the asynchronous messages (mailboxes) APIs are
+ *          included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_SEMAPHORES.
+ */
+#define CH_CFG_USE_MAILBOXES                TRUE
+
+/**
+ * @brief   Core Memory Manager APIs.
+ * @details If enabled then the core memory manager APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MEMCORE                  TRUE
+
+/**
+ * @brief   Heap Allocator APIs.
+ * @details If enabled then the memory heap allocator APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_MEMCORE and either @p CH_CFG_USE_MUTEXES or
+ *          @p CH_CFG_USE_SEMAPHORES.
+ * @note    Mutexes are recommended.
+ */
+#define CH_CFG_USE_HEAP                     TRUE
+
+/**
+ * @brief   Memory Pools Allocator APIs.
+ * @details If enabled then the memory pools allocator APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MEMPOOLS                 TRUE
+
+/**
+ * @brief   Dynamic Threads APIs.
+ * @details If enabled then the dynamic threads creation APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_WAITEXIT.
+ * @note    Requires @p CH_CFG_USE_HEAP and/or @p CH_CFG_USE_MEMPOOLS.
+ */
+#define CH_CFG_USE_DYNAMIC                  TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Debug options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Debug option, kernel statistics.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_STATISTICS                   FALSE
+
+/**
+ * @brief   Debug option, system state check.
+ * @details If enabled the correct call protocol for system APIs is checked
+ *          at runtime.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_SYSTEM_STATE_CHECK           TRUE
+
+/**
+ * @brief   Debug option, parameters checks.
+ * @details If enabled then the checks on the API functions input
+ *          parameters are activated.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_ENABLE_CHECKS                TRUE
+
+/**
+ * @brief   Debug option, consistency checks.
+ * @details If enabled then all the assertions in the kernel code are
+ *          activated. This includes consistency checks inside the kernel,
+ *          runtime anomalies and port-defined checks.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_ENABLE_ASSERTS               TRUE
+
+/**
+ * @brief   Debug option, trace buffer.
+ * @details If enabled then the trace buffer is activated.
+ *
+ * @note    The default is @p CH_DBG_TRACE_MASK_DISABLED.
+ */
+#define CH_DBG_TRACE_MASK                   CH_DBG_TRACE_MASK_DISABLED
+
+/**
+ * @brief   Trace buffer entries.
+ * @note    The trace buffer is only allocated if @p CH_DBG_TRACE_MASK is
+ *          different from @p CH_DBG_TRACE_MASK_DISABLED.
+ */
+#define CH_DBG_TRACE_BUFFER_SIZE            128
+
+/**
+ * @brief   Debug option, stack checks.
+ * @details If enabled then a runtime stack check is performed.
+ *
+ * @note    The default is @p FALSE.
+ * @note    The stack check is performed in a architecture/port dependent way.
+ *          It may not be implemented or some ports.
+ * @note    The default failure mode is to halt the system with the global
+ *          @p panic_msg variable set to @p NULL.
+ */
+#define CH_DBG_ENABLE_STACK_CHECK           TRUE
+
+/**
+ * @brief   Debug option, stacks initialization.
+ * @details If enabled then the threads working area is filled with a byte
+ *          value when a thread is created. This can be useful for the
+ *          runtime measurement of the used stack.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_FILL_THREADS                 TRUE
+
+/**
+ * @brief   Debug option, threads profiling.
+ * @details If enabled then a field is added to the @p thread_t structure that
+ *          counts the system ticks occurred while executing the thread.
+ *
+ * @note    The default is @p FALSE.
+ * @note    This debug option is not currently compatible with the
+ *          tickless mode.
+ */
+#define CH_DBG_THREADS_PROFILING            FALSE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Kernel hooks
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Threads descriptor structure extension.
+ * @details User fields added to the end of the @p thread_t structure.
+ */
+#define CH_CFG_THREAD_EXTRA_FIELDS                                          \
+  /* Add threads custom fields here.*/
+
+/**
+ * @brief   Threads initialization hook.
+ * @details User initialization code added to the @p chThdInit() API.
+ *
+ * @note    It is invoked from within @p chThdInit() and implicitly from all
+ *          the threads creation APIs.
+ */
+#define CH_CFG_THREAD_INIT_HOOK(tp) {                                       \
+  /* Add threads initialization code here.*/                                \
+}
+
+/**
+ * @brief   Threads finalization hook.
+ * @details User finalization code added to the @p chThdExit() API.
+ */
+#define CH_CFG_THREAD_EXIT_HOOK(tp) {                                       \
+  /* Add threads finalization code here.*/                                  \
+}
+
+/**
+ * @brief   Context switch hook.
+ * @details This hook is invoked just before switching between threads.
+ */
+#define CH_CFG_CONTEXT_SWITCH_HOOK(ntp, otp) {                              \
+  /* Context switch code here.*/                                            \
+}
+
+/**
+ * @brief   ISR enter hook.
+ */
+#define CH_CFG_IRQ_PROLOGUE_HOOK() {                                        \
+  /* IRQ prologue code here.*/                                              \
+}
+
+/**
+ * @brief   ISR exit hook.
+ */
+#define CH_CFG_IRQ_EPILOGUE_HOOK() {                                        \
+  /* IRQ epilogue code here.*/                                              \
+}
+
+/**
+ * @brief   Idle thread enter hook.
+ * @note    This hook is invoked within a critical zone, no OS functions
+ *          should be invoked from here.
+ * @note    This macro can be used to activate a power saving mode.
+ */
+#define CH_CFG_IDLE_ENTER_HOOK() {                                          \
+  /* Idle-enter code here.*/                                                \
+}
+
+/**
+ * @brief   Idle thread leave hook.
+ * @note    This hook is invoked within a critical zone, no OS functions
+ *          should be invoked from here.
+ * @note    This macro can be used to deactivate a power saving mode.
+ */
+#define CH_CFG_IDLE_LEAVE_HOOK() {                                          \
+  /* Idle-leave code here.*/                                                \
+}
+
+/**
+ * @brief   Idle Loop hook.
+ * @details This hook is continuously invoked by the idle thread loop.
+ */
+#define CH_CFG_IDLE_LOOP_HOOK() {                                           \
+  /* Idle loop code here.*/                                                 \
+}
+
+/**
+ * @brief   System tick event hook.
+ * @details This hook is invoked in the system tick handler immediately
+ *          after processing the virtual timers queue.
+ */
+#define CH_CFG_SYSTEM_TICK_HOOK() {                                         \
+  /* System tick event code here.*/                                         \
+}
+
+/**
+ * @brief   System halt hook.
+ * @details This hook is invoked in case to a system halting error before
+ *          the system is halted.
+ */
+#define CH_CFG_SYSTEM_HALT_HOOK(reason) {                                   \
+  /* System halt code here.*/                                               \
+}
+
+/**
+ * @brief   Trace hook.
+ * @details This hook is invoked each time a new record is written in the
+ *          trace buffer.
+ */
+#define CH_CFG_TRACE_HOOK(tep) {                                            \
+  /* Trace code here.*/                                                     \
+}
+
+/** @} */
+
+/*===========================================================================*/
+/* Port-specific settings (override port settings defaulted in chcore.h).    */
+/*===========================================================================*/
+
+#endif  /* CHCONF_H */
+
+/** @} */
diff --git a/keyboard/kl27z_kbd/config.h b/keyboard/kl27z_kbd/config.h
new file mode 100644
index 00000000..85aef524
--- /dev/null
+++ b/keyboard/kl27z_kbd/config.h
@@ -0,0 +1,80 @@
+/*
+Copyright 2015 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x1111
+#define DEVICE_VER      0x0001
+/* in python2: list(u"whatever".encode('utf-16-le')) */
+/*   at most 32 characters or the ugly hack in usb_main.c borks */
+#define MANUFACTURER "TMK"
+#define USBSTR_MANUFACTURER    'T', '\x00', 'M', '\x00', 'K', '\x00', ' ', '\x00'
+#define PRODUCT "ChibiOS TMK test"
+#define USBSTR_PRODUCT         'C', '\x00', 'h', '\x00', 'i', '\x00', 'b', '\x00', 'i', '\x00', 'O', '\x00', 'S', '\x00', ' ', '\x00', 'T', '\x00', 'M', '\x00', 'K', '\x00', ' ', '\x00', 't', '\x00', 'e', '\x00', 's', '\x00', 't', '\x00'
+#define DESCRIPTION "TMK keyboard firmware over ChibiOS"
+
+/* key matrix size */
+#define MATRIX_ROWS 5
+#define MATRIX_COLS 14
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE    5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+// TODO: add this to ChibiOS-Contrib/os/common/ext/CMSIS/KINETIS/kl27zxxx.h
+#ifndef USBx_CTL_RESUME
+#define USBx_CTL_RESUME              ((uint8_t)0x04) /*!< Executes resume signaling */
+#endif
+
+
+#endif
diff --git a/keyboard/kl27z_kbd/halconf.h b/keyboard/kl27z_kbd/halconf.h
new file mode 100644
index 00000000..b1d2cd55
--- /dev/null
+++ b/keyboard/kl27z_kbd/halconf.h
@@ -0,0 +1,187 @@
+/*
+    ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    templates/halconf.h
+ * @brief   HAL configuration header.
+ * @details HAL configuration file, this file allows to enable or disable the
+ *          various device drivers from your application. You may also use
+ *          this file in order to override the device drivers default settings.
+ *
+ * @addtogroup HAL_CONF
+ * @{
+ */
+
+#ifndef _HALCONF_H_
+#define _HALCONF_H_
+
+#include "mcuconf.h"
+
+/**
+ * @brief   Enables the PAL subsystem.
+ */
+#if !defined(HAL_USE_PAL) || defined(__DOXYGEN__)
+#define HAL_USE_PAL                 TRUE
+#endif
+
+/**
+ * @brief   Enables the ADC subsystem.
+ */
+#if !defined(HAL_USE_ADC) || defined(__DOXYGEN__)
+#define HAL_USE_ADC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the CAN subsystem.
+ */
+#if !defined(HAL_USE_CAN) || defined(__DOXYGEN__)
+#define HAL_USE_CAN                 FALSE
+#endif
+
+/**
+ * @brief   Enables the DAC subsystem.
+ */
+#if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
+#define HAL_USE_DAC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the EXT subsystem.
+ */
+#if !defined(HAL_USE_EXT) || defined(__DOXYGEN__)
+#define HAL_USE_EXT                 FALSE
+#endif
+
+/**
+ * @brief   Enables the GPT subsystem.
+ */
+#if !defined(HAL_USE_GPT) || defined(__DOXYGEN__)
+#define HAL_USE_GPT                 FALSE
+#endif
+
+/**
+ * @brief   Enables the I2C subsystem.
+ */
+#if !defined(HAL_USE_I2C) || defined(__DOXYGEN__)
+#define HAL_USE_I2C                 FALSE
+#endif
+
+/**
+ * @brief   Enables the I2S subsystem.
+ */
+#if !defined(HAL_USE_I2S) || defined(__DOXYGEN__)
+#define HAL_USE_I2S                 FALSE
+#endif
+
+/**
+ * @brief   Enables the ICU subsystem.
+ */
+#if !defined(HAL_USE_ICU) || defined(__DOXYGEN__)
+#define HAL_USE_ICU                 FALSE
+#endif
+
+/**
+ * @brief   Enables the MAC subsystem.
+ */
+#if !defined(HAL_USE_MAC) || defined(__DOXYGEN__)
+#define HAL_USE_MAC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the MMC_SPI subsystem.
+ */
+#if !defined(HAL_USE_MMC_SPI) || defined(__DOXYGEN__)
+#define HAL_USE_MMC_SPI             FALSE
+#endif
+
+/**
+ * @brief   Enables the PWM subsystem.
+ */
+#if !defined(HAL_USE_PWM) || defined(__DOXYGEN__)
+#define HAL_USE_PWM                 FALSE
+#endif
+
+/**
+ * @brief   Enables the RTC subsystem.
+ */
+#if !defined(HAL_USE_RTC) || defined(__DOXYGEN__)
+#define HAL_USE_RTC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the SDC subsystem.
+ */
+#if !defined(HAL_USE_SDC) || defined(__DOXYGEN__)
+#define HAL_USE_SDC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the SERIAL subsystem.
+ */
+#if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__)
+#define HAL_USE_SERIAL              FALSE
+#endif
+
+/**
+ * @brief   Enables the SERIAL over USB subsystem.
+ */
+#if !defined(HAL_USE_SERIAL_USB) || defined(__DOXYGEN__)
+#define HAL_USE_SERIAL_USB          FALSE
+#endif
+
+/**
+ * @brief   Enables the SPI subsystem.
+ */
+#if !defined(HAL_USE_SPI) || defined(__DOXYGEN__)
+#define HAL_USE_SPI                 FALSE
+#endif
+
+/**
+ * @brief   Enables the UART subsystem.
+ */
+#if !defined(HAL_USE_UART) || defined(__DOXYGEN__)
+#define HAL_USE_UART                FALSE
+#endif
+
+/**
+ * @brief   Enables the USB subsystem.
+ */
+#if !defined(HAL_USE_USB) || defined(__DOXYGEN__)
+#define HAL_USE_USB                 TRUE
+#endif
+
+/**
+ * @brief   Enables the WDG subsystem.
+ */
+#if !defined(HAL_USE_WDG) || defined(__DOXYGEN__)
+#define HAL_USE_WDG                 FALSE
+#endif
+
+/*===========================================================================*/
+/* USB driver related settings.                                              */
+/*===========================================================================*/
+
+/**
+ * @brief   Enables synchronous APIs.
+ * @note    Disabling this option saves both code and data space.
+ */
+#if !defined(USB_USE_WAIT) || defined(__DOXYGEN__)
+#define USB_USE_WAIT                TRUE
+#endif
+
+#endif /* _HALCONF_H_ */
+
+/** @} */
diff --git a/keyboard/kl27z_kbd/kl27z_kbd.c b/keyboard/kl27z_kbd/kl27z_kbd.c
new file mode 100644
index 00000000..ddb4bde5
--- /dev/null
+++ b/keyboard/kl27z_kbd/kl27z_kbd.c
@@ -0,0 +1,234 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ch.h"
+#include "hal.h"
+
+/*
+ * scan matrix
+ */
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "wait.h"
+#include "matrix.h"
+#include "led.h"
+#include "keymap.h"
+#include "timer.h"
+
+
+/* Matrix
+ * COL: input with pullup to sense
+ *  PTD6 PTD5 PTD4 PTD3 PTA19 PTA18 PTA4 PTA2 PTA1 PTE25 PTE24 PTE30 PTE29 PTE21
+ *
+ * ROW: output low to strobe
+ *  PTB3 PTB16 PTB17 PTC0 PTC1
+ *
+ * State(1:on, 0:off) 
+ */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+static bool debouncing = false;
+static uint16_t debouncing_time = 0;
+
+
+inline
+uint8_t matrix_rows(void)
+{
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+    return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+    debug_matrix = true;
+    memset(matrix, 0, MATRIX_ROWS);
+    memset(matrix_debouncing, 0, MATRIX_ROWS);
+
+    // COL: internal pull-up
+    palSetPadMode(GPIOD, 6,  PAL_MODE_INPUT_PULLUP);
+    palSetPadMode(GPIOD, 5,  PAL_MODE_INPUT_PULLUP);
+    palSetPadMode(GPIOD, 4,  PAL_MODE_INPUT_PULLUP);
+    palSetPadMode(GPIOD, 3,  PAL_MODE_INPUT_PULLUP);
+
+    palSetPadMode(GPIOA, 19, PAL_MODE_INPUT_PULLUP);
+    palSetPadMode(GPIOA, 18, PAL_MODE_INPUT_PULLUP);
+    palSetPadMode(GPIOA, 4,  PAL_MODE_INPUT_PULLUP);
+    palSetPadMode(GPIOA, 2,  PAL_MODE_INPUT_PULLUP);
+    palSetPadMode(GPIOA, 1,  PAL_MODE_INPUT_PULLUP);
+
+    palSetPadMode(GPIOE, 25, PAL_MODE_INPUT_PULLUP);
+    palSetPadMode(GPIOE, 24, PAL_MODE_INPUT_PULLUP);
+    palSetPadMode(GPIOE, 30, PAL_MODE_INPUT_PULLUP);
+    palSetPadMode(GPIOE, 29, PAL_MODE_INPUT_PULLUP);
+    palSetPadMode(GPIOE, 21, PAL_MODE_INPUT_PULLUP);
+
+    // ROW: Output high
+    palSetPadMode(GPIOB, 3,  PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPadMode(GPIOB, 16, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPadMode(GPIOB, 17, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPadMode(GPIOC, 0,  PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPadMode(GPIOC, 1,  PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPad(GPIOB, 3);
+    palSetPad(GPIOB, 16);
+    palSetPad(GPIOB, 17);
+    palSetPad(GPIOC, 0);
+    palSetPad(GPIOC, 1);
+
+
+    // LED blink
+    palSetPadMode(GPIOD, 7, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPad(GPIOD, 7);
+    chThdSleepMilliseconds(200);
+    palClearPad(GPIOD, 7);
+    chThdSleepMilliseconds(200);
+    palSetPad(GPIOD, 7);
+    chThdSleepMilliseconds(200);
+    palClearPad(GPIOD, 7);
+}
+
+uint8_t matrix_scan(void)
+{
+    for (int row = 0; row < MATRIX_ROWS; row++) {
+        matrix_row_t data = 0;
+
+        // strobe row
+        switch (row) {
+            case 0: palClearPad(GPIOB, 3);    break;
+            case 1: palClearPad(GPIOB, 16);   break;
+            case 2: palClearPad(GPIOB, 17);   break;
+            case 3: palClearPad(GPIOC, 0);    break;
+            case 4: palClearPad(GPIOC, 1);    break;
+        }
+
+        //wait_us(1);
+        //chThdSleepMicroseconds(1); // TODO: sleep around 1ms for some reason
+        //chThdSleepMilliseconds(1); // seems to work correctly
+
+        data = (!palReadPad(GPIOD, 6)  << 0UL)  |
+               (!palReadPad(GPIOD, 5)  << 1UL)  |
+               (!palReadPad(GPIOD, 4)  << 2UL)  |
+               (!palReadPad(GPIOD, 3)  << 3UL)  |
+               (!palReadPad(GPIOA, 19) << 4UL)  |
+               (!palReadPad(GPIOA, 18) << 5UL)  |
+               (!palReadPad(GPIOA, 4)  << 6UL)  |
+               (!palReadPad(GPIOA, 2)  << 7UL)  |
+               (!palReadPad(GPIOA, 1)  << 8UL)  |
+               (!palReadPad(GPIOE, 25) << 9UL)  |
+               (!palReadPad(GPIOE, 24) << 10UL) |
+               (!palReadPad(GPIOE, 30) << 11UL) |
+               (!palReadPad(GPIOE, 29) << 12UL) |
+               (!palReadPad(GPIOE, 21) << 13UL);
+
+        // unstrobe row
+        switch (row) {
+            case 0: palSetPad(GPIOB, 3);    break;
+            case 1: palSetPad(GPIOB, 16);   break;
+            case 2: palSetPad(GPIOB, 17);   break;
+            case 3: palSetPad(GPIOC, 0);    break;
+            case 4: palSetPad(GPIOC, 1);    break;
+        }
+
+        if (matrix_debouncing[row] != data) {
+            matrix_debouncing[row] = data;
+            debouncing = true;
+            debouncing_time = timer_read();
+        }
+    }
+
+    if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) {
+        for (int row = 0; row < MATRIX_ROWS; row++) {
+            matrix[row] = matrix_debouncing[row];
+        }
+        debouncing = false;
+    }
+    return 1;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & (1<<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    return matrix[row];
+}
+
+void matrix_print(void)
+{
+    return;
+    xprintf("\nr/c 0123456789ABCDEF\n");
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        xprintf("%02X: ", row);
+        matrix_row_t data = matrix_get_row(row);
+        for (int col = 0; col < MATRIX_COLS; col++) {
+            if (data & (1<<col))
+                xprintf("1");
+            else
+                xprintf("0");
+        }
+        xprintf("\n");
+    }
+}
+
+
+//
+// LED
+//
+void led_set(uint8_t usb_led) {
+    if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
+        // output high
+        palSetPadMode(GPIOD, 7, PAL_MODE_OUTPUT_PUSHPULL);
+        palSetPad(GPIOD, 7);
+    } else {
+        // Hi-Z
+        palSetPadMode(GPIOD, 7, PAL_MODE_INPUT);
+    }
+}
+
+
+//
+// Keymap
+//
+const uint8_t keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [0] = {
+        { KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,     KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSLS },
+        { KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,     KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSPC },
+        { KC_LCTL, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,     KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, KC_ENT,  KC_NO   },
+        { KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,     KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, KC_NO,   KC_FN0  },
+        { KC_LCTL, KC_LGUI, KC_LALT, KC_NO,   KC_SPC,  KC_NO,   KC_NO,    KC_NO,   KC_NLCK, KC_CAPS, KC_MENU, KC_RALT, KC_RGUI, KC_RCTL },
+    },
+    [1] = {
+        { KC_ESC,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,    KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_DEL  },
+        { KC_CAPS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  KC_TRNS, KC_PSCR, KC_SLCK, KC_PAUS, KC_UP,   KC_INS,  KC_TRNS },
+        { KC_TRNS, KC_VOLD, KC_VOLU, KC_MUTE, KC_TRNS, KC_TRNS, KC_PAST,  KC_PSLS, KC_HOME, KC_PGUP, KC_LEFT, KC_RGHT, KC_PENT, KC_TRNS },
+        { KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PPLS,  KC_PMNS, KC_END,  KC_PGDN, KC_DOWN, KC_TRNS, KC_TRNS, KC_TRNS },
+        { KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS },
+    },
+};
+
+const action_t fn_actions[] = {
+    [0]  = ACTION_LAYER_TAP_KEY(1, KC_GRV),
+};
diff --git a/keyboard/kl27z_kbd/mcuconf.h b/keyboard/kl27z_kbd/mcuconf.h
new file mode 100644
index 00000000..a35e65d8
--- /dev/null
+++ b/keyboard/kl27z_kbd/mcuconf.h
@@ -0,0 +1,80 @@
+/*
+    ChibiOS - (C) 2015-2016 flabbergast <s3+flabbergast@sdfeu.org>
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#ifndef _MCUCONF_H_
+#define _MCUCONF_H_
+
+#define KL2x_MCUCONF
+
+/*
+ * HAL driver system settings.
+ */
+#if 1
+/* High-frequency internal RC, 48MHz, possible USB clock recovery */
+#define KINETIS_MCGLITE_MODE        KINETIS_MCGLITE_MODE_HIRC
+#define KINETIS_SYSCLK_FREQUENCY    48000000UL
+#define KINETIS_CLKDIV1_OUTDIV1     1
+#endif
+
+#if 0
+/* Low-frequency internal RC, 8 MHz mode */
+#define KINETIS_MCGLITE_MODE        KINETIS_MCGLITE_MODE_LIRC8M
+#define KINETIS_SYSCLK_FREQUENCY    8000000UL
+#define KINETIS_CLKDIV1_OUTDIV1     1
+#endif
+
+/*
+ * SERIAL driver system settings.
+ */
+#define KINETIS_SERIAL_USE_UART0              TRUE
+
+/*
+ * USB driver settings
+ */
+#define KINETIS_USB_USE_USB0                  TRUE
+/* need to redefine this, since the default is for K20x */
+#define KINETIS_USB_USB0_IRQ_PRIORITY         2
+
+/*
+ * Kinetis FOPT configuration byte
+ */
+/* for KL27: */
+#define KINETIS_NV_FOPT_BYTE 0x39
+#define KINETIS_NV_FSEC_BYTE 0x7E
+/* NV_FOPT: bit7-6/BOOTSRC_SEL=0b00 (11=from ROM; 00=from FLASH)
+   bit5/FAST_INIT=1, bit4/LPBOOT1=1,
+   bit3/RESET_PIN_CFG=1, bit2/NMI_DIS=1,
+   bit1/BOOTPIN_OPT=0, bit0/LPBOOT0=1 */
+/* BOOTPIN_OPT: 1=boot depends on BOOTSRC_SEL
+   0=boot samples BOOTCFG0=NMI pin */
+/* Boot sequence, page 88 of manual:
+ * - If the NMI/BOOTCFG0 input is high or the NMI function is disabled in FTFA_FOPT, the CPU begins execution at the PC location.
+ * - If the NMI/BOOTCFG0 input is low, the NMI function is enabled in FTFA_FOPT, and FTFA_FOPT[BOOTPIN_OPT] = 1, this results in an NMI interrupt. The processor executes an Exception Entry and reads the NMI interrupt handler address from vector-table offset 8. The CPU begins execution at the NMI interrupt handler.
+ * - When FTFA_FOPT[BOOTPIN_OPT] = 0, it forces boot from ROM if NMI/BOOTCFG0 pin set to 0.
+ *
+ * Observed behaviour:
+ * - when BOOTPIN_OPT=0, BOOTSRC_SEL still matters:
+ *   - if 0b11 (from ROM), it still boots from ROM, even if BOOTCFG0 pin
+ *     is high/floating, but leaves ROM and runs user app after
+ *     5 seconds delay.
+ *   - if 0b00 (from FLASH), reset/powerup jumps to user app unless
+ *     BOOTCFG0 pin is asserted.
+ * - in any case, reset when in bootloader induces the 5 second delay
+ *   before starting the user app.
+ * 
+ */
+
+#endif /* _MCUCONF_H_ */