diff options
Diffstat (limited to 'ports/stm32/powerctrl.c')
| -rw-r--r-- | ports/stm32/powerctrl.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/ports/stm32/powerctrl.c b/ports/stm32/powerctrl.c index 45e886e13..d4590029c 100644 --- a/ports/stm32/powerctrl.c +++ b/ports/stm32/powerctrl.c @@ -260,6 +260,10 @@ set_clk: #endif void powerctrl_enter_stop_mode(void) { + // Disable IRQs so that the IRQ that wakes the device from stop mode is not + // executed until after the clocks are reconfigured + uint32_t irq_state = disable_irq(); + #if defined(STM32L4) // Configure the MSI as the clock source after waking up __HAL_RCC_WAKEUPSTOP_CLK_CONFIG(RCC_STOP_WAKEUPCLOCK_MSI); @@ -331,6 +335,9 @@ void powerctrl_enter_stop_mode(void) { #endif #endif + + // Enable IRQs now that all clocks are reconfigured + enable_irq(irq_state); } #if !defined(STM32L4) |