STM32L151UC: 'WFI' but interrupt never triggering
Posted on July 08, 2015 at 08:47 I am using an STM32L151 (Cortex-M3) and configuring an external interrupt on a gpio pin: /* Enable clocks */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI3, EN...