40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/* Copyright 2021 QMK
|
|
*
|
|
* 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 3 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 "bootloader.h"
|
|
|
|
#include <avr/wdt.h>
|
|
|
|
__attribute__((weak)) void bootloader_jump(void) {
|
|
// this block may be optional
|
|
// TODO: figure it out
|
|
|
|
uint16_t *const bootKeyPtr = (uint16_t *)0x0800;
|
|
|
|
// Value used by Caterina bootloader use to determine whether to run the
|
|
// sketch or the bootloader programmer.
|
|
uint16_t bootKey = 0x7777;
|
|
|
|
*bootKeyPtr = bootKey;
|
|
|
|
// setup watchdog timeout
|
|
wdt_enable(WDTO_60MS);
|
|
|
|
// wait for watchdog timer to trigger
|
|
while (1) {
|
|
}
|
|
}
|