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Merge pull request #6303 from DavePutz/issue_4452

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Fix for issue #4452 - time.sleep on STM
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Dan Halbert 2022-04-22 13:34:31 -04:00 committed by GitHub
commit 3885bc9018
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1 changed files with 5 additions and 2 deletions
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7
ports/stm/peripherals/rtc.c
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@ -86,7 +86,7 @@ uint64_t stm32_peripherals_rtc_raw_ticks(uint8_t *subticks) {
uint32_t time = (uint32_t)(RTC->TR & RTC_TR_RESERVED_MASK);
uint32_t date = (uint32_t)(RTC->DR & RTC_DR_RESERVED_MASK);
uint32_t ssr = (uint32_t)(RTC->SSR);
while (ssr != first_ssr) {
if (ssr != first_ssr) {
first_ssr = ssr;
time = (uint32_t)(RTC->TR & RTC_TR_RESERVED_MASK);
date = (uint32_t)(RTC->DR & RTC_DR_RESERVED_MASK);
@ -184,13 +184,16 @@ void stm32_peripherals_rtc_set_alarm(uint8_t alarm_idx, uint32_t ticks) {
alarm.AlarmTime.SubSeconds = rtc_clock_frequency - 1 -
((raw_ticks % TICK_DIVISOR) * 32);
if (alarm.AlarmTime.SubSeconds > rtc_clock_frequency) {
alarm.AlarmTime.SubSeconds = alarm.AlarmTime.SubSeconds +
rtc_clock_frequency;
}
alarm.AlarmTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
alarm.AlarmTime.StoreOperation = RTC_STOREOPERATION_SET;
// Masking here means that the bits are ignored so we set none of them.
alarm.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_NONE;
alarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
alarm.Alarm = (alarm_idx == PERIPHERALS_ALARM_A) ? RTC_ALARM_A : RTC_ALARM_B;
HAL_RTC_SetAlarm_IT(&hrtc, &alarm, RTC_FORMAT_BIN);
HAL_NVIC_EnableIRQ(RTC_Alarm_IRQn);
alarmed_already[alarm_idx] = false;