AP_HAL_ChibiOS: do not reset GPIO for boards with external flash

Icatme · Sep 1, 2021 · 813e93a · 813e93a
1 parent fc4be36
commit 813e93a
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/common/board.c b/libraries/AP_HAL_ChibiOS/hwdef/common/board.c
@@ -171,7 +171,9 @@ static void stm32_gpio_init(void) {
   /* Enabling GPIO-related clocks, the mask comes from the
      registry header file.*/
 #if defined(STM32H7)
+#if !EXTERNAL_PROG_FLASH_MB // if we have external flash resetting GPIO might disable all comms with it
   rccResetAHB4(STM32_GPIO_EN_MASK);
+#endif
   rccEnableAHB4(STM32_GPIO_EN_MASK, true);
 #elif defined(STM32F3)
   rccResetAHB(STM32_GPIO_EN_MASK);