debate.c

#define VERDE PORTE.RE0 
#define AMARILLO PORTE.RE1
#define ROJO PORTE.RE2
#define T_total 60
#define T_medio T_total/2
#define T_critico 3
#define SEGUNDO 50 //1000ms=SEGUNDO

sbit LCD_RS at RD1_bit;
sbit LCD_EN at RD0_bit;
sbit LCD_D4 at RD4_bit;
sbit LCD_D5 at RD5_bit;
sbit LCD_D6 at RD6_bit;
sbit LCD_D7 at RD7_bit;
sbit LCD_RS_Direction at TRISD1_bit;
sbit LCD_EN_Direction at TRISD0_bit;
sbit LCD_D4_Direction at TRISD4_bit;
sbit LCD_D5_Direction at TRISD5_bit;
sbit LCD_D6_Direction at TRISD6_bit;
sbit LCD_D7_Direction at TRISD7_bit;

int contador = T_total;
char contador_en_lcd[2];
int no = 1;
  
void main()
{
  ANSEL  = 0;                                    // Configure AN pins as digital I/O
  ANSELH = 0;

  TRISE=0;
  PORTE=0;


  C1ON_bit = 0;                                  // Disable comparators
  C2ON_bit = 0;
 
  TRISA=0x01;
  PORTA=0x00;
  

  UART1_Init(9600);
  Delay_ms(100);

  Lcd_Init();
  Lcd_Cmd(_LCD_CLEAR);
  Lcd_Cmd(_LCD_CURSOR_OFF);
  Lcd_Out(2, 1, "Inicializando...");
  Delay_ms(1000);
  Lcd_Cmd(_LCD_CLEAR);

  do
  {
  Lcd_Out(1, 1, "Pulse el boton");
  Lcd_Out(2, 1, "para comenzar.");
  //contador = T_total;  

while(no){
  if(UART1_Data_Ready() == 1) {
        UART1_Read_Text(contador_en_lcd, " ", 10);
        contador = atoi(contador_en_lcd);
        if(contador > 0) { 
        no = 0;
        }
  }
} 
while(!Button(&PORTA, 0, 1, 1)){}     
//  if (Button(&PORTA, 0, 1, 1)){
    Lcd_Out(1, 1, "Tiempo restante:");
    while(contador > 0){
      IntToStr(contador, contador_en_lcd);      

      Lcd_Out(2, 1, "                ");
      Lcd_Out(2, 1, contador_en_lcd);
      UART1_Write_Text(contador_en_lcd);
      UART1_Write(13);
      UART1_Write(10);
     
      if(contador > T_medio){ 
         VERDE = 1;
         AMARILLO = 0;
         ROJO = 0;
      } else if(contador > T_critico){
         VERDE = 0;
         AMARILLO = 1;
         ROJO = 0;
      } else {       
         VERDE = 0;
         AMARILLO = 0;
         ROJO = 1;
      }     
      Delay_ms(SEGUNDO);
      contador--;
      }
      no = 1;       
 //   }
 } while (1);
}