stm32/modmachine: Add deepsleep support to reset_cause() for WB55.

2022-02-23 09:37:48 +11:00 · 2022-02-23 09:37:48 +11:00 · a41bc5a7ca
commit a41bc5a7ca
parent 6b23f7d301
1 changed files with 6 additions and 0 deletions
--- 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