/*Control on-board LED through USART
 * PD5 - UART1-Tx
 * PD6 - UART1-Rx
 */
 //Required Headers
 #include "STM8S.h"
 #include "stm8s103_serial.h" //https://github.com/CircuitDigest/STM8S103F3_SPL/blob/master/stm8s103%20Libraries/stm8s103_Serial.h
 #define test_LED GPIOD, GPIO_PIN_4
 
 //Main Code 
 void Delayms_timer4(uint16_t time_delay);
 void CLK_Cofiguration(void);
 void readbutton(void);
 void main(void)
 {
    CLK_Cofiguration();
    GPIO_Init(GPIOC, GPIO_PIN_4, GPIO_MODE_IN_FL_NO_IT);
    GPIO_Init (test_LED, GPIO_MODE_OUT_PP_LOW_SLOW);
    char ch;
    Serial_begin(9600);
    // Serial_print_string("Enter command");
    Serial_newline();
    while (1) //Loop function 
    {
      readbutton();
      if(Serial_available())
      {
        Serial_print_string("You have pressed: ");
        ch = Serial_read_char();
        Serial_print_char(ch);
        Serial_newline();

        if (ch == '1')
    //GPIO_WriteLow(test_LED); //LED ON
        GPIO_WriteHigh(test_LED); //LED OFF
        Serial_print_string("open_1");
        Delayms_timer4(4000);
        GPIO_WriteLow(test_LED); //LED ON
      }
    }
}
void readbutton(){
  int data = 0;
  data = GPIO_ReadInputPin(GPIOC, GPIO_PIN_4);
    
  if(data == 0){
    GPIO_WriteHigh(test_LED);
    Delayms_timer4(4000);
    GPIO_WriteLow(test_LED);
  }  
}
void CLK_Cofiguration(void)
{
  CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);
}
void Delayms_timer4(uint16_t time_delay)
{
	/* Init TIMER 4 */
  CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER4, ENABLE); // enable clock timer 4
  TIM4_TimeBaseInit(TIM4_PRESCALER_64, 250);		    // set frequence timer 4 la 16*10^6/64/250 = 1000Hz
  TIM4_SetCounter(0);					    // set counter value = 0    															//set counter ve gia tri ban dau =0	
  TIM4_ClearFlag(TIM4_FLAG_UPDATE);                         // clear flag update timer4(when over timer = 1) clear 0
  TIM4_Cmd(ENABLE);					    // enable timer													// enable timer hoat dong
  while(time_delay--)																				// tan so la 1000Hz -> khi lap lai 1000 lan la 1Hz = 1s
  {
    while(TIM4_GetFlagStatus(TIM4_FLAG_UPDATE)== 0) ;	   // watting over timer exit whiles
    TIM4_ClearFlag(TIM4_FLAG_UPDATE);			   // clear timer for next counter    									
	
  }
/* Disable Counter */
  TIM4_Cmd(DISABLE);																				// sau khi delay xong, disable timer.
  CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER4, DISABLE);// Disable clock for timer when finish delay
}
#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