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STM32L4: Use HAL layer functions for sleep implementation

pull/7813/head
Markus Siglreithmaier 2018-09-26 08:54:13 +02:00
parent 97fef1160c
commit ea6c886d22
1 changed files with 4 additions and 13 deletions
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17
targets/TARGET_STM/sleep.c
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@ -52,7 +52,7 @@ static void wait_loop(uint32_t timeout)
// On L4 platforms we've seen unstable PLL CLK configuraiton // On L4 platforms we've seen unstable PLL CLK configuraiton
// when DEEP SLEEP exits just few µs after being entered // when DEEP SLEEP exits just few µs after being entered
// So we need to force MSI usage before setting clocks again // So we need to force MSI usage before setting clocks again
static void ForcePeriphOutofDeepSleep(void) static void ForcePeriphOutofDeepSleep(void)
{ {
@ -162,19 +162,10 @@ void hal_sleep(void)
// [5.4.1 Power control register 1 (PWR_CR1)] // [5.4.1 Power control register 1 (PWR_CR1)]
// LPR: When this bit is set, the regulator is switched from main mode (MR) to low-power mode (LPR). // LPR: When this bit is set, the regulator is switched from main mode (MR) to low-power mode (LPR).
int lowPowerMode = PWR->CR1 & PWR_CR1_LPR; int lowPowerMode = PWR->CR1 & PWR_CR1_LPR;
// LPR -> Run
if (lowPowerMode) { if (lowPowerMode) {
HAL_PWREx_DisableLowPowerRunMode(); HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
} } else {
HAL_PWR_EnterSLEEPMode(PWR_LOWPOWERREGULATOR_ON, PWR_SLEEPENTRY_WFI);
// Entering Sleep mode [5.3.4 Sleep mode]
CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk)); // SLEEPDEEP = 0
__WFI();
// Run -> LPR
if (lowPowerMode) {
HAL_PWREx_EnableLowPowerRunMode();
} }
#else #else
HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI); HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);