add jump_bootloader.
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7fd9003f59
commit
1de02c1f15
3
Makefile
3
Makefile
@ -51,7 +51,8 @@ SRC = $(TARGET).c \
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usb_device.c \
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usb_keyboard.c \
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usb_debug.c \
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print.c
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print.c \
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jump_bootloader.c
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# MCU name, you MUST set this to match the board you are using
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35
jump_bootloader.c
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35
jump_bootloader.c
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@ -0,0 +1,35 @@
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// this code from:
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// http://www.pjrc.com/teensy/jump_to_bootloader.html
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <util/delay.h>
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void jump_bootloader() {
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cli();
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// disable watchdog, if enabled
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// disable all peripherals
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UDCON = 1;
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USBCON = (1<<FRZCLK); // disable USB
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UCSR1B = 0;
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_delay_ms(5);
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#if defined(__AVR_AT90USB162__) // Teensy 1.0
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DDRB = 0; DDRC = 0; DDRD = 0;
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TIMSK0 = 0; TIMSK1 = 0;
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asm volatile("jmp 0x1F00");
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#elif defined(__AVR_ATmega32U4__) // Teensy 2.0
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DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0;
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TIMSK0 = 0; TIMSK1 = 0; TIMSK3 = 0; TIMSK4 = 0;
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ADCSRA = 0;
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asm volatile("jmp 0x3F00");
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#elif defined(__AVR_AT90USB646__) // Teensy++ 1.0
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DDRA = 0; DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0;
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TIMSK0 = 0; TIMSK1 = 0; TIMSK2 = 0; TIMSK3 = 0;
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ADCSRA = 0;
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asm volatile("jmp 0x7E00");
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#elif defined(__AVR_AT90USB1286__) // Teensy++ 2.0
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DDRA = 0; DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0;
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TIMSK0 = 0; TIMSK1 = 0; TIMSK2 = 0; TIMSK3 = 0;
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ADCSRA = 0;
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asm volatile("jmp 0xFE00");
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#endif
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}
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6
jump_bootloader.h
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6
jump_bootloader.h
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@ -0,0 +1,6 @@
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#ifndef JUMP_BOOTLOADER_H
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#define JUMP_BOOTLOADER_H 1
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void jump_bootloader(void);
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#endif
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12
mykey.c
12
mykey.c
@ -34,6 +34,7 @@
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#include "print.h"
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#include "matrix.h"
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#include "keymap.h"
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#include "jump_bootloader.h"
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#define LED_CONFIG (DDRD |= (1<<6))
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#define LED_ON (PORTD &= ~(1<<6))
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@ -111,6 +112,13 @@ int main(void)
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}
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}
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// run bootloader when 4 left modifier keys down
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if (keyboard_modifier_keys == (MOD_LCTRL | MOD_LSHIFT | MOD_LALT | MOD_LGUI)) {
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print("jump to bootloader...\n");
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_delay_ms(1000);
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jump_bootloader();
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}
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if (key_index > 6) {
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//Rollover
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}
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@ -128,7 +136,7 @@ int main(void)
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// print matrix state for debug
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if (modified) {
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print("r/c 01234567\n");
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print("\nr/c 01234567\n");
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for (row = 0; row < MATRIX_ROWS; row++) {
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phex(row); print(": ");
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pbin_reverse(matrix[row]);
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@ -159,6 +167,6 @@ ISR(TIMER0_OVF_vect)
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idle_count++;
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if (idle_count > 61 * 8) {
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idle_count = 0;
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//print("Timer Event :)\n");
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print(".");
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}
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}
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@ -10,6 +10,16 @@
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#define KEYBOARD_SIZE 8
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#define KEYBOARD_BUFFER EP_DOUBLE_BUFFER
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// modifier bits
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#define MOD_LCTRL (1<<0)
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#define MOD_LSHIFT (1<<1)
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#define MOD_LALT (1<<2)
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#define MOD_LGUI (1<<3)
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#define MOD_RCTRL (1<<4)
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#define MOD_RSHIFT (1<<5)
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#define MOD_RALT (1<<6)
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#define MOD_RGUI (1<<7)
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extern uint8_t keyboard_modifier_keys;
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extern uint8_t keyboard_keys[6];
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