STM32F0xx ADC Interrupt will not fire

mcgilvra2 · ‎2015-10-16

Posted on October 16, 2015 at 23:07

Using the STM32F072. Have set up the ADC to fire interrupt on end of conversion. It is not firing. I generated code using the latest STM32-CubeMX tool. Attached are resultant adc.c and adc.h. Also attached is full main. Below is pertinent part of main. I set a break-point in ADC1_COMP_IRQHandler() in interrupts.c (also attached) and it never fires. To verify that any interrupts were working I also set a breakpoint at SysTick_Handler() in interrupts.c and it fires fine. Any help would be greatly appreciated.

int main(void)

{

hal_init();

sysclock_init();

gpio_init();

//adc_init();

MX_ADC_Init(); //McG

MX_TIM2_Init(); //mcg

__GPIOA_CLK_ENABLE(); //mcg This seems to be missing, can't find it anywhere so we'll do it here. stm32f0xx_hal_adc.c say's we have to.

__GPIOB_CLK_ENABLE(); //mcg Ditto

HAL_ADC_Start_IT(&hadc); //mcg start ADC in interrupt mode.

spi_init();

vhf_init();

uhf_init();

sensors_init();

rs485_init();

gps_init();

ir_efs_init();

// After delay, shut off WS circuit

HAL_Delay(100);

uint8_t wet_wakeup = HAL_GPIO_ReadPin(WATERSENSE);

HAL_GPIO_WritePin(WATERSENSE_ENABLE, GPIO_PIN_SET);

if(wet_wakeup)

rs485_wakeup(); // Wake up lower units

// Start watchdog

watchdog_init();

// Software timers

uint32_t last_sensors = HAL_GetTick();

uint32_t last_led = HAL_GetTick();

uint32_t last_wakeup = HAL_GetTick();

uint32_t last_engineering = HAL_GetTick();

uint32_t last_rs485_process = HAL_GetTick();

while (1)

{.......

#stm32-stm32f0-adc