qmk_firmware

QMK firmware for my keyboards (Corne, Sweep Ferris) and trackball (Ploopy Adept)
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uf2boot.c (527B)

      1 // Copyright 2023 QMK
      2 // SPDX-License-Identifier: GPL-2.0-or-later
      3 
      4 #include <stdint.h>
      5 #include <hal.h>
      6 #include "bootloader.h"
      7 
      8 // From mmoskal/uf2-stm32f103's backup.c
      9 #define MAGIC_BOOT 0x544F4F42UL
     10 
     11 // defined by linker script
     12 extern uint32_t _board_magic_reg[];
     13 #define MAGIC_REG _board_magic_reg[0]
     14 
     15 void bootloader_jump(void) {
     16     MAGIC_REG = MAGIC_BOOT;
     17     NVIC_SystemReset();
     18 }
     19 
     20 void mcu_reset(void) {
     21     NVIC_SystemReset();
     22 }
     23 
     24 /* not needed, no two-stage reset */
     25 void enter_bootloader_mode_if_requested(void) {}