Hello, This is more about STM32 than it is about NuttX, but I know there are experts here: STM32U585 does have 8 GPIOs on Port I. However, setting bit 8 (GPIOIEN) in RCC_AHB2ENR1 seems to be ignored (i.e. GPIOIEN remains at 0). For the other eight IO ports (GPIO[A-H]EN) it works just fine. Any ideas anyone?
Thanks! Michael