Posted on December 08, 2013 at 14:54hello I want to learn how to use independent watchdog so I wrote this code but it doesnt work .
here is my code :
#include ''stm32f10x.h''
#include ''stm32_eval.h''
#include <stdio.h>
GPIO_InitTypeDef GPIO_Config_Anahtari;
void Rcc_Configuration(void);
void IWDG_Configuration(void);
void GPIO_Rcc_Configuration(void);
void GPIO_Configuration(void);
void _Delay(uint16_t);
int main(void)
{
GPIO_Rcc_Configuration();
GPIO_Configuration();
Rcc_Configuration();
IWDG_Configuration();
IWDG_Enable();
GPIO_SetBits(GPIOD,GPIO_Pin_7);
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_LSICmd(ENABLE);
while(RCC_GetFlagStatus(RCC_FLAG_LSIRDY)==RESET);
}
void IWDG_Configuration()
{
IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
IWDG_SetPrescaler(IWDG_Prescaler_16);
IWDG_SetReload(0xFFF);
IWDG_ReloadCounter();
IWDG_WriteAccessCmd(IWDG_WriteAccess_Disable);
}
void GPIO_Rcc_Configuration()
{
RCC_HCLKConfig(RCC_SYSCLK_Div1);
RCC_PCLK2Config(RCC_HCLK_Div1);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD,ENABLE);
}
void _Delay(uint16_t t)
{
uint8_t i=0;
while(t--)
for(i=0;i<10;i++);
}
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_50MHz;
GPIO_Init(GPIOD,&GPIO_Config_Anahtari);
}
So in this code I expect , iwdg creates an reset signal. So when reset signal created , led must be turn off and then turn on again. But in my board nothing change. So what is the problem ?
Thanks for your help and sorry about my english
