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-rw-r--r--ports/stm32/modmachine.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/ports/stm32/modmachine.c b/ports/stm32/modmachine.c
index 57b8ef5e6..0239ea64c 100644
--- a/ports/stm32/modmachine.c
+++ b/ports/stm32/modmachine.c
@@ -119,6 +119,12 @@ void machine_init(void) {
reset_cause = PYB_RESET_DEEPSLEEP;
PWR->SCR |= PWR_SCR_CSBF;
} else
+ #elif defined(STM32WB)
+ if (PWR->EXTSCR & PWR_EXTSCR_C1SBF) {
+ // came out of standby
+ reset_cause = PYB_RESET_DEEPSLEEP;
+ PWR->EXTSCR |= PWR_EXTSCR_C1CSSF;
+ } else
#endif
{
// get reset cause from RCC flags