unleashed-firmware/target_f2/Src/boot.c
あく 805bb886c0
Implement bootloader #137 (#142)
* Boot: switch to DFU routines. Implements #132 part 1 of 2.

* Boot: boot to DFU shortcut, hard reset USB on each boot. Implements #132 part 2 of 2.

* Deploy scripts: fix path for deploy dfu.

* Bootloader: initial version. Target_f2: rebase, update deployment scripts.

* Bootloader: cleanup, refactor switch2 proc. Readme,wiki: document bootloader.

* Wiki: deploy symlinks as files, bootloader info.

* Target_f2: valid flash size in linker script.

* Github CI: bootloader build and artifacts.

* Bootloader: rename platforms to targets.

* Bootloader: change dfu/os colors.

* disable set -e

* lint code

* add bootloader testing page

Co-authored-by: Aleksandr Kutuzov <aku@plooks.com>
Co-authored-by: aanper <mail@s3f.ru>
2020-10-01 02:05:04 +03:00

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C

#include "boot.h"
#include "stm32l4xx_ll_bus.h"
#include "stm32l4xx_ll_rcc.h"
#include "stm32l4xx_ll_rtc.h"
#include "stm32l4xx_ll_pwr.h"
#define BOOT_REQUEST_DFU 0xDF00B000
void boot_restart_in_dfu() {
// Request DFU on boot
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
LL_PWR_EnableBkUpAccess();
// Enable RTC
LL_RCC_EnableRTC();
// Write backup registry
LL_RTC_BAK_SetRegister(RTC, LL_RTC_BKP_DR0, BOOT_REQUEST_DFU);
// Reset
NVIC_SystemReset();
}