STM8S103 read port issue

Status
Not open for further replies.

radioratiometrics

New Member
Hi I am using an STM8S103F3 and using ST standard peripheral library for STM8 and using an STM8S103F3 mini dev board. I am currently unable to read any input pin the GPIO_ReadInputPin function is not returning me any value. Neither the BitStatus SET or RESET is returned.However when i set the pin to output i can toggle them to any value i want. Below is my code. I first tried with pins A1 and A2 then B5 and then C3 but with no success. In case anyone can please help that would be great thanks

#include "stm8s.h"
#include "stm8s_conf.h"



#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 main(void)
{

CLK_DeInit();
CLK_HSICmd(ENABLE);
CLK_LSICmd(DISABLE);
CLK_HSECmd(DISABLE);
CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);
CLK_SYSCLKConfig(CLK_PRESCALER_CPUDIV1 );


GPIO_DeInit(GPIOB);
GPIO_DeInit(GPIOC);

GPIO_Init(GPIOC,GPIO_PIN_3,GPIO_MODE_IN_PU_NO_IT );
GPIO_Init(GPIOB,GPIO_PIN_5,GPIO_MODE_OUT_PP_LOW_FAST);



GPIO_WriteHigh(GPIOB,GPIO_PIN_5);

while(1)
{
if(GPIO_ReadInputPin(GPIOC,GPIO_PIN_3)==SET)
{
GPIO_WriteLow(GPIOB,GPIO_PIN_5);
}

else if(GPIO_ReadInputPin(GPIOC,GPIO_PIN_3)==RESET)
{
GPIO_WriteHigh(GPIOB,GPIO_PIN_5);
}
}
 
Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…