HI all..


I am having trouble getting a character from a terminal to a variable and then continuing to run the program.

I am inexperienced so I must be doing something wrong



Here's my code:

#include <16F874A.h> 
#include <math.h> 
#include <ds1306.c> 
#use delay(clock=20000000) 
#fuses HS, NOWDT, NOPROTECT, NOBROWNOUT 
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7,parity=N, bits=8 ) 

  
   int8 hour, minute, second, day, date, month, year, control; 
   char str[10], c; 
 
 void main() 
   {   
    printf ("inicio\r\n");
    int8 hour, minute, second, day, date, month, year, control; 
   char str[10], c; 
       
   ds1306_init();
   printf ("ds1306_init();\r\n");
   ds1306_writebyte(0x8F, 0x00);
   printf (" ds1306_writebyte(0x8F, 0x00);\r\n");
   delay_us(10); 
   
   ds1306_writebyte(0x8F, 0x02); 
    printf ("ds1306_writebyte(0x8F, 0x02);\r\n");
   
   /*printf("enter hour (0 - 23).\r\n"); 
   hour = gets(str); 
   printf("enter minute (0 - 60).\r\n"); 
   minute = gets(str); 
   printf("enter second (0 - 60).\r\n"); 
   second = gets(str); 
   printf("enter day (1=monday, 2=tuesday, etc).\r\n"); 
   day = gets(str); 
   printf("enter day of month (1 - 31).\r\n"); 
   date = gets(str); 
   printf("enter month (1 - 12).\r\n"); 
   month = gets(str); 
   printf("enter year 20XX (0 - 99).\r\n"); 
   year = gets(str);*/
   
   ds1306_settime_24hr(15, 20, 15); 
   ds1306_setdate(4, 23, 2, 6); 
  printf("Press 't' to retrieve the time and 'd' to retrieve the date.\r\n"); 
   
     while(1)
   { 
      c = getc(); 
      
         printf ("%c\r\n",c);
      if ((c == 't') || (c == 'T'))
      { 
         second = bcd2bin(ds1306_readbyte(0x00)); 
         minute = bcd2bin(ds1306_readbyte(0x01)); 
         hour = bcd2bin(ds1306_readbyte(0x02)); 
         printf("Time = "); 
         if (hour < 10) 
            printf("0%d:", hour); 
         else 
            printf("%d:", hour); 
         if (minute < 10) 
            printf("0%d:", minute); 
         else 
            printf("%d:", minute); 
         if (second < 10) 
            printf("0%d", second); 
         else 
            printf("%d", second); 
         printf("\r\n"); 
      } 
    c = getc(); 
      if ((c == 'a') || (c == 'A')) 
      { 
         second = bcd2bin(ds1306_readbyte(0x0B)); 
         minute = bcd2bin(ds1306_readbyte(0x0C)); 
         hour = bcd2bin(ds1306_readbyte(0x0D)); 
         printf("Alarm time = "); 
         if (hour < 10) 
            printf("0%d:", hour); 
         else 
            printf("%d:", hour); 
         if (minute < 10) 
            printf("0%d:", minute); 
         else 
            printf("%d:", minute); 
         if (second < 10) 
            printf("0%d", second); 
         else 
            printf("%d", second); 
         printf("\r\n"); 
      } 

      if ((c == 'd') || (c == 'D')) 
      { 
         day = bcd2bin(ds1306_readbyte(0x03)); 
         date = bcd2bin(ds1306_readbyte(0x04)); 
         month = bcd2bin(ds1306_readbyte(0x05)); 
         year = bcd2bin(ds1306_readbyte(0x06)); 
         printf("Date = "); 
         switch(day) 
         { 
            case 1:  printf("Monday"); 
                     break; 
            case 2:  printf("Tuesday"); 
                     break; 
            case 3:  printf("Wednesday"); 
                     break; 
            case 4:  printf("Thursday"); 
                     break; 
            case 5:  printf("Friday"); 
                     break; 
            case 6:  printf("Saturday"); 
                     break; 
            case 7:  printf("Sunday"); 
                     break; 
         } 
         printf(", "); 
         if (date < 10) 
            printf("0%d/", date); 
         else 
            printf("%d/", date); 
         if (month < 10) 
            printf("0%d/", month); 
         else 
            printf("%d/", month); 
         if (year < 10) 
            printf("0%d", year); 
         else 
            printf("%d", year); 
         printf("\r\n"); 

      } 
   
   delay_ms(10000);
      printf ("end of while");
   }
}

after the red print f i wont show nothing anymore.

Really need some of your help

 

I think you may want to use getchar() rather than getc(). getc() requires a pointer to a file as a parameter whereas getchar() assumes stdin.