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STM32: define RCC_LSE_BYPASS to allow using PC_15 as gpio #13817

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Merged
merged 1 commit into from
Nov 2, 2020
Merged

STM32: define RCC_LSE_BYPASS to allow using PC_15 as gpio #13817

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4 changes: 4 additions & 0 deletions targets/TARGET_STM/lp_ticker.c
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Original file line number Diff line number Diff line change
Expand Up @@ -170,7 +170,11 @@ void lp_ticker_init(void)

/* Enable LSE clock */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE;
#if MBED_CONF_TARGET_LSE_BYPASS
RCC_OscInitStruct.LSEState = RCC_LSE_BYPASS;
#else
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
#endif
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;

/* Select the LSE clock as LPTIM peripheral clock */
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4 changes: 4 additions & 0 deletions targets/TARGET_STM/rtc_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -65,7 +65,11 @@ void rtc_init(void)
#if MBED_CONF_TARGET_LSE_AVAILABLE
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
#if MBED_CONF_TARGET_LSE_BYPASS
RCC_OscInitStruct.LSEState = RCC_LSE_BYPASS;
#else
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
#endif

if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
error("Cannot initialize RTC with LSE\n");
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