diff options
Diffstat (limited to 'platforms/avr/bootloaders/caterina.c')
| -rw-r--r-- | platforms/avr/bootloaders/caterina.c | 39 | 
1 files changed, 39 insertions, 0 deletions
| diff --git a/platforms/avr/bootloaders/caterina.c b/platforms/avr/bootloaders/caterina.c new file mode 100644 index 0000000000..82a16a3765 --- /dev/null +++ b/platforms/avr/bootloaders/caterina.c @@ -0,0 +1,39 @@ +/* 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) { +    } +} | 
