diff options
Diffstat (limited to 'platforms/avr/bootloaders/bootloadhid.c')
| -rw-r--r-- | platforms/avr/bootloaders/bootloadhid.c | 33 | 
1 files changed, 33 insertions, 0 deletions
| diff --git a/platforms/avr/bootloaders/bootloadhid.c b/platforms/avr/bootloaders/bootloadhid.c new file mode 100644 index 0000000000..ae58760d7d --- /dev/null +++ b/platforms/avr/bootloaders/bootloadhid.c @@ -0,0 +1,33 @@ +/* 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/eeprom.h> +#include <avr/wdt.h> + +__attribute__((weak)) void bootloader_jump(void) { +    // force bootloadHID to stay in bootloader mode, so that it waits +    // for a new firmware to be flashed +    // NOTE: this byte is part of QMK's "magic number" - changing it causes the EEPROM to be re-initialized +    // thus every time the device is flashed the EEPROM will be wiped +    eeprom_write_byte((uint8_t *)1, 0x00); + +    // watchdog reset +    wdt_enable(WDTO_250MS); +    for (;;) +        ; +} | 
