Posted on October 29, 2013 at 12:53hi
I am trying to use timer 1 in stm3210c-eval.
I wrote this code below.
My problem is : counter starts counting but my program doesnt go to the ISR .
so whats the problem ?
here is my code :
#include ''stm32f10x.h''
#include ''stm32_eval.h''
#include ''stm32f10x_tim.h''
#include <stdio.h>
TIM_TimeBaseInitTypeDef timer_base_config_anahtari;
TIM_OCInitTypeDef timer_output_config_anahtari;
NVIC_InitTypeDef nvic_config_anahtari;
GPIO_InitTypeDef gpio_config_anahtari;
void timerbase_configuration(void);
void timer_output_compare_configure_et(void);
void nvic_configuration(void);
void rcc_configuration(void);
void gpio_configuration(void);
void TIM1_UP_IRQHandler()
{
uint8_t bitdurumu;
bitdurumu = GPIO_ReadOutputDataBit(GPIOD,GPIO_Pin_7);
if(bitdurumu == Bit_SET)
{
GPIO_ResetBits(GPIOD,GPIO_Pin_7);
}
else
{
GPIO_SetBits(GPIOD,GPIO_Pin_7);
}
TIM_ClearFlag(TIM1,TIM_FLAG_Update);
TIM_ClearITPendingBit(TIM1,TIM_IT_Update);
}
int main(void)
{
rcc_configuration();
nvic_configuration();
gpio_configuration();
timerbase_configuration();
while (1)
{
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf(''Wrong parameters value: file %s on line %d\r\n'', file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
void rcc_configuration()
{
RCC_HCLKConfig(RCC_SYSCLK_Div1);
RCC_PCLK2Config(RCC_HCLK_Div16); .
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);
}
void timerbase_configuration()
{
timer_base_config_anahtari.TIM_CounterMode = TIM_CounterMode_Up;
timer_base_config_anahtari.TIM_Period = 0xC350;
timer_base_config_anahtari.TIM_Prescaler = 144;
timer_base_config_anahtari.TIM_RepetitionCounter = 10;
timer_base_config_anahtari.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseInit(TIM1,&timer_base_config_anahtari); TIM_ITConfig(TIM1,TIM_IT_Update,ENABLE);
TIM_Cmd(TIM1,ENABLE);
}
void gpio_configuration()
{
gpio_config_anahtari.GPIO_Mode = GPIO_Mode_Out_PP;
gpio_config_anahtari.GPIO_Pin = GPIO_Pin_7;
gpio_config_anahtari.GPIO_Speed =GPIO_Speed_2MHz;
GPIO_Init(GPIOD,&gpio_config_anahtari);
}
void nvic_configuration()
{
nvic_config_anahtari.NVIC_IRQChannel = TIM1_UP_IRQn ;
nvic_config_anahtari.NVIC_IRQChannelPreemptionPriority =0x0f;
nvic_config_anahtari.NVIC_IRQChannelSubPriority = 0x0f;
nvic_config_anahtari.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&nvic_config_anahtari);
}
thanks for your help
