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This is a keyboard firmware with some features for Atmel AVR controller.
Source code is available here: http://github.com/tmk/tmk_keyboard
You can find some keyboard specific projects under converter
and keyboard
directory.
First, you need tools to build firmware and program your controller. I assume you are on Windows here.
Toolchain Install WinAVR. This is old but works well for this purpose. WinAVR
is a tool set to build firmware including C compiler(gcc) and make commands. You can use CrossPack instead if you are on Mac.
Programmer Install Atmel FLIP. FLIP
is a tool to program(load) firmware into AVR controller via DFU bootloader. AVR USB chips including ATmega32U4 has DFU bootloader by factory default. You can also use dfu-programmer instead if you are on Mac or Linux.
Driver At first time you start DFU bootloader on Chip ‘Found New Hardware Wizard’ will come up on Windows. If you install device driver properly you can find chip name like ‘ATmega32U4’ under ‘LibUSB-Win32 Devices’ tree on ‘Device Manager’. If not you shall need to update its driver on ‘Device Manager’. You will find the driver in FLIP
install directory like: C:\Program Files (x86)\Atmel\Flip 3.4.5\usb. If you use dfu-programmer
install its driver.
If you use PJRC Teensy you don’t need step 2 and 3 above, just get Teensy loader.
You can find firmware source at github:
If you are familiar with Git
tools you are recommended to use it but you can also download zip archive from:
Open terminal window to get access to commands. You can use cmd
in Windows or Terminal.app
on Mac OSX. In Windows press Windows
key and R
then enter cmd
in ‘Run command’ dialog showing up.
Move to project directory in the firmware source.
cd tmk_keyboard/{'keyboard' or 'converter'}/<project>
Build firmware using GNU make
command. You’ll see <project>_<variant>.hex
file in that directory unless something unexpected occurs in build process.
mkae -f Makefile.<variant> clean
make -f Makefile.<variant>
Now you have hex file to program on current directory. This hex is only needed to program your controller, other files are used for development and you may leave and forget them.
How to program controller depends on controller chip and its board design. To program AVR USB chips you’ll need to start it up in bootloader mode. Most of boards with the chip have a push button to let bootloader come up. Consult with your controller board manual.
Stock AVR USB chip including ATmega32U4 has DFU bootloader by factory default. FLIP
is a DFU programmer on Windows offered by Atmel. Open source command line tool dfu-programmer
also supports AVR chips, it runs on Linux, Mac OSX and even Windows.
To program AVR chip with DFU bootloader use FLIP
or dfu-programmer
.
If you have a proper program command in Makefile
just type this.
FLIP
has two version of tool, GUI app and command line program. If you want GUI see tutorial below.
To use command line tool run this command. Note that you need to set PATH variable properly.
$ make -f Makefile.<variant> flip
Or to program with dfu-programmer
run:
$ make -f Makefile.<variant> dfu
ATmega32u4
.On menu bar click Settings -> Communication -> USB, then click ‘Open’ button on ‘USB Port Connection’ dialog. At this point you’ll see greyouted widgets on the app get colored and ready.
On menu bar click File -> Load HEX File, then select your firmware hex file on File Selector dialog.
On ‘Operations Flow’ panel click ‘Run’ button to load the firmware binary to the chip. Note that you should keep ‘Erase’, ‘Blank Check’, ‘Program’ and ‘Verify’ check boxes selected.
Re-plug USB cord or click ‘Start Application’ button to restart your controller. Done.
See also these instaructions if you need.
If you have PJRC Teensy see instruction of Teensy Loader
.
Or use this command if you have command line version of Teensy Loader installed.
$ make -f Makefile.<variant> teensy
You may want to use other programmer like avrdude
with AVRISPmkII, Aruduino or USBasp. In that case you can still use make target program
for build with configuring PROGRAM_CMD
in Makefile.
$ make -f Makefile.<variant> program
MCU = atmega32u4 # Teensy 2.0
#MCU = at90usb1286 # Teensy++ 2.0
F_CPU = 16000000
# Boot Section Size in *bytes*
# Teensy halfKay 512
# Atmel DFU loader 4096
# LUFA bootloader 4096
OPT_DEFS += -DBOOTLOADER_SIZE=4096
Optional. Note that comment out to disable them.
BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration(+1000)
MOUSEKEY_ENABLE = yes # Mouse keys(+4700)
EXTRAKEY_ENABLE = yes # Audio control and System control(+450)
CONSOLE_ENABLE = yes # Console for debug(+400)
COMMAND_ENABLE = yes # Commands for debug and configuration
SLEEP_LED_ENABLE = yes # Breathing sleep LED during USB suspend
#NKRO_ENABLE = yes # USB Nkey Rollover - not yet supported in LUFA
Optional. Set proper command for your controller, bootloader and programmer. This command can be used with make program
. Not needed if you use FLIP
, dfu-programmer
or Teesy Loader
.
# avrdude with AVRISPmkII
PROGRAM_CMD = avrdude -p $(MCU) -c avrispmkII -P USB -U flash:w:$(TARGET).hex
# avrdude with USBaspLoader
PROGRAM_CMD = avrdude -p $(MCU) -c usbasp -U flash:w:$(TARGET).hex
# avrdude with arduino
PROGRAM_CMD = avrdude -p $(MCU) -c arduino -P COM1 -b 57600 -U flash:w:$(TARGET).hex
#define IS_COMMAND() (keyboard_report->mods == (MOD_BIT(KB_LSHIFT) | MOD_BIT(KB_RSHIFT)))
/* Mechanical locking CapsLock support. Use KC_LCAP instead of KC_CAPS in keymap */
#define CAPSLOCK_LOCKING_ENABLE
/* Locking CapsLock resynchronize hack */
#define CAPSLOCK_LOCKING_RESYNC_ENABLE
Use PJRC’s hid_listen
to see debug messages. You can use the tool for debug even if firmware use LUFA stack.
You will see output from firmware like this.
r/c 01234567
00: 00000000
01: 00000000
02: 00000000
03: 00000000
04: 00000000
05: 00000000
06: 00000000
07: 00000000
---- action_exec: start -----
EVENT: 0307u(22511)
Tapping: Tap release(2)
ACTION: ACT_LAYER[5:2C]
LAYER_PRESSED: Tap: unregister_code
TAPPING_KEY=0307u(22511):2
processed: 0307u(22511):2
Tapping: End(Timeout after releasing last tap): FFFFu(22715)
TAPPING_KEY=0000u(0):0
To see help press Magic
+ H
.
Magic
key bind may be LShift
+ RShift
in many project, but Power
key on ADB converter. Magic
keybind can be vary on each project, check config.h
in project directory.
Following commands can be also executed with Magic
+ key. In console mode Magic
keybind is not needed.
----- Command Help -----
c: enter console mode
d: toggle debug enable
x: toggle matrix debug
k: toggle keyboard debug
m: toggle mouse debug
p: toggle print enable
v: print device version & info
t: print timer count
s: print status
0/F10: switch to Layer0
1/F1: switch to Layer1
2/F2: switch to Layer2
3/F3: switch to Layer3
4/F4: switch to Layer4
PScr: power down/remote wake-up
Caps: Lock Keyboard(Child Proof)
Paus: jump to bootloader
TBD
Boot Magic are executed during boot up time. Press Magic key below then pulgin keyboard cable. These settings are stored in EEPROM.
Backspace
)B
)D
)Left Control
)Casp Lock
)Left Alt
)Right Alt
)Left Gui
)Grave
)Back Slash
)TBD
To enable this feature define these two macros in config.h
and use KC_LCAP
for locking CapsLock in keymap instead of normal KC_CAPS
. Resync option tries to keep lock switch state consistent with keyboard LED state.
#define CAPSLOCK_LOCKING_ENABLE
#define CAPSLOCK_LOCKING_RESYNC_ENABLE
TBD
#define VENDOR_ID 0xFEED
#define PRODUCT_ID 0xBEEF
/* device description */
#define MANUFACTURER t.m.k.
#define PRODUCT Macway mod
#define DESCRIPTION t.m.k. keyboard firmware for Macway mod
#define MATRIX_ROWS 8
#define MATRIX_COLS 8
#define MATRIX_HAS_GHOST
Under GPL
2 or later. Some protocol files are under Modified BSD License
.
LUFA, PJRC and V-USB stack have their own license respectively.