stm32/powerctrl: Reenable PLL3 on H7 MCUs when waking from stop mode.
So that USB can work.
@@ -504,6 +504,13 @@ void powerctrl_enter_stop_mode(void) {
}
#endif
+ #if defined(STM32H7)
+ // Enable PLL3 for USB
+ RCC->CR |= RCC_CR_PLL3ON;
+ while (!(RCC->CR & RCC_CR_PLL3RDY)) {
+ }
+ #endif
+
#if defined(STM32L4)
// Enable PLLSAI1 for peripherals that use it
RCC->CR |= RCC_CR_PLLSAI1ON;
