Posted on September 10, 2015 at 07:26
hello,
I've been trying to blink an led using an overflow interrupt with timer 4 on the sm8l discovery board. So far I haven't made it work. I'm currently using IAR Embedded Workbench with the Std library for stm8l.
I need help.
here's what I'm trying to do:
here's the main.c
#include ''stm8l15x.h''
void timer4_init(void){
TIM4_DeInit();
CLK_PeripheralClockConfig(CLK_Peripheral_TIM4, ENABLE);
TIM4_TimeBaseInit(TIM4_Prescaler_8, 100);
TIM4_ITConfig(TIM4_IT_Update, ENABLE);
}
int main(void) {
timer4_init();
GPIO_Init(GPIOC, GPIO_Pin_7, GPIO_Mode_Out_PP_High_Fast);
enableInterrupts();
while(1){
}
}
and the interrupt handler is in the stm8l15x_it.c, I've also included in this file the stm8l15x.h header file.
INTERRUPT_HANDLER(TIM4_UPD_OVF_TRG_IRQHandler,25)
{
/* In order to detect unexpected events during development,
it is recommended to set a breakpoint on the following instruction.
*/
GPIO_ToggleBits(GPIOC, GPIO_Pin_7);
TIM4_ClearITPendingBit(TIM4_IT_Update);
}
What am I doing wrong?
thanks in advance
#timer #interrupts #stm8l
