From 16b627dc08098758acaa0a62f49eff4d519fde79 Mon Sep 17 00:00:00 2001 From: Peter Hinch Date: Sun, 27 Sep 2020 08:42:52 +0100 Subject: [PATCH] ports/stm32/powerctrl.c Enable user EWUP control --- ports/stm32/powerctrl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/ports/stm32/powerctrl.c b/ports/stm32/powerctrl.c index 946185fba09d3..590103ede4e06 100644 --- a/ports/stm32/powerctrl.c +++ b/ports/stm32/powerctrl.c @@ -629,10 +629,14 @@ void powerctrl_enter_standby_mode(void) { RTC->ISR &= ~ISR_BITS; #if defined(STM32F7) + // Save user EWUP state + uint32_t csr2_ewup = PWR->CSR2 & (PWR_CSR2_EWUP6 | PWR_CSR2_EWUP5 | PWR_CSR2_EWUP4 | PWR_CSR2_EWUP3 | PWR_CSR2_EWUP2 | PWR_CSR2_EWUP1); // disable wake-up flags PWR->CSR2 &= ~(PWR_CSR2_EWUP6 | PWR_CSR2_EWUP5 | PWR_CSR2_EWUP4 | PWR_CSR2_EWUP3 | PWR_CSR2_EWUP2 | PWR_CSR2_EWUP1); // clear global wake-up flag PWR->CR2 |= PWR_CR2_CWUPF6 | PWR_CR2_CWUPF5 | PWR_CR2_CWUPF4 | PWR_CR2_CWUPF3 | PWR_CR2_CWUPF2 | PWR_CR2_CWUPF1; + // Restore state + PWR->CSR2 |= csr2_ewup; #elif defined(STM32H7) // TODO #elif defined(STM32L4) || defined(STM32WB) pFad - Phonifier reborn

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