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