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add jump_bootloader.

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tmk 2010-09-24 15:01:21 +09:00
parent 7fd9003f59
commit 1de02c1f15
5 changed files with 63 additions and 3 deletions
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3
Makefile
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@ -51,7 +51,8 @@ SRC = $(TARGET).c \
usb_device.c \
usb_keyboard.c \
usb_debug.c \
print.c
print.c \
jump_bootloader.c
# MCU name, you MUST set this to match the board you are using

35
jump_bootloader.c Normal file
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@ -0,0 +1,35 @@
// this code from:
// http://www.pjrc.com/teensy/jump_to_bootloader.html
#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
void jump_bootloader() {
cli();
// disable watchdog, if enabled
// disable all peripherals
UDCON = 1;
USBCON = (1<<FRZCLK); // disable USB
UCSR1B = 0;
_delay_ms(5);
#if defined(__AVR_AT90USB162__) // Teensy 1.0
DDRB = 0; DDRC = 0; DDRD = 0;
TIMSK0 = 0; TIMSK1 = 0;
asm volatile("jmp 0x1F00");
#elif defined(__AVR_ATmega32U4__) // Teensy 2.0
DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0;
TIMSK0 = 0; TIMSK1 = 0; TIMSK3 = 0; TIMSK4 = 0;
ADCSRA = 0;
asm volatile("jmp 0x3F00");
#elif defined(__AVR_AT90USB646__) // Teensy++ 1.0
DDRA = 0; DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0;
TIMSK0 = 0; TIMSK1 = 0; TIMSK2 = 0; TIMSK3 = 0;
ADCSRA = 0;
asm volatile("jmp 0x7E00");
#elif defined(__AVR_AT90USB1286__) // Teensy++ 2.0
DDRA = 0; DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0;
TIMSK0 = 0; TIMSK1 = 0; TIMSK2 = 0; TIMSK3 = 0;
ADCSRA = 0;
asm volatile("jmp 0xFE00");
#endif
}

6
jump_bootloader.h Normal file
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@ -0,0 +1,6 @@
#ifndef JUMP_BOOTLOADER_H
#define JUMP_BOOTLOADER_H 1
void jump_bootloader(void);
#endif

12
mykey.c
View file

@ -34,6 +34,7 @@
#include "print.h"
#include "matrix.h"
#include "keymap.h"
#include "jump_bootloader.h"
#define LED_CONFIG (DDRD |= (1<<6))
#define LED_ON (PORTD &= ~(1<<6))
@ -111,6 +112,13 @@ int main(void)
}
}
// run bootloader when 4 left modifier keys down
if (keyboard_modifier_keys == (MOD_LCTRL | MOD_LSHIFT | MOD_LALT | MOD_LGUI)) {
print("jump to bootloader...\n");
_delay_ms(1000);
jump_bootloader();
}
if (key_index > 6) {
//Rollover
}
@ -128,7 +136,7 @@ int main(void)
// print matrix state for debug
if (modified) {
print("r/c 01234567\n");
print("\nr/c 01234567\n");
for (row = 0; row < MATRIX_ROWS; row++) {
phex(row); print(": ");
pbin_reverse(matrix[row]);
@ -159,6 +167,6 @@ ISR(TIMER0_OVF_vect)
idle_count++;
if (idle_count > 61 * 8) {
idle_count = 0;
//print("Timer Event :)\n");
print(".");
}
}

10
usb_keyboard.h
View file

@ -10,6 +10,16 @@
#define KEYBOARD_SIZE 8
#define KEYBOARD_BUFFER EP_DOUBLE_BUFFER
// modifier bits
#define MOD_LCTRL (1<<0)
#define MOD_LSHIFT (1<<1)
#define MOD_LALT (1<<2)
#define MOD_LGUI (1<<3)
#define MOD_RCTRL (1<<4)
#define MOD_RSHIFT (1<<5)
#define MOD_RALT (1<<6)
#define MOD_RGUI (1<<7)
extern uint8_t keyboard_modifier_keys;
extern uint8_t keyboard_keys[6];