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Check LPUART clock source in STOP mode 

Check LPUART clock source before enable it in STOP mode, only LSE could be enabled in STOP mode.
pull/8479/head
Eman869 2018-09-27 19:12:42 +08:00 committed by adbridge
parent abd5f21b73
commit f427af229d
1 changed files with 2 additions and 0 deletions
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2
targets/TARGET_STM/serial_api.c
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@ -536,7 +536,9 @@ HAL_StatusTypeDef init_uart(serial_t *obj)
#if defined(LPUART1_BASE) #if defined(LPUART1_BASE)
if (huart->Instance == LPUART1) { if (huart->Instance == LPUART1) {
if (obj_s->baudrate <= 9600) { if (obj_s->baudrate <= 9600) {
#if ((MBED_CONF_TARGET_LPUART_CLOCK_SOURCE) & USE_LPUART_CLK_LSE)
HAL_UARTEx_EnableClockStopMode(huart); HAL_UARTEx_EnableClockStopMode(huart);
#endif
HAL_UARTEx_EnableStopMode(huart); HAL_UARTEx_EnableStopMode(huart);
} else { } else {
HAL_UARTEx_DisableClockStopMode(huart); HAL_UARTEx_DisableClockStopMode(huart);