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https://github.com/Keychron/qmk_firmware.git
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6bc870d899
* Refactor `bootloader_jump()` implementations * Fix tests? * Rename `atmel-samba` to `md-boot`
35 lines
1.2 KiB
C
35 lines
1.2 KiB
C
/* Copyright 2021 QMK
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "bootloader.h"
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#include <avr/eeprom.h>
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#include <avr/wdt.h>
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__attribute__((weak))
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void bootloader_jump(void) {
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// force bootloadHID to stay in bootloader mode, so that it waits
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// for a new firmware to be flashed
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// NOTE: this byte is part of QMK's "magic number" - changing it causes the EEPROM to be re-initialized
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// thus every time the device is flashed the EEPROM will be wiped
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eeprom_write_byte((uint8_t *)1, 0x00);
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// watchdog reset
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wdt_enable(WDTO_250MS);
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for (;;)
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;
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}
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