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pic16f877a timer

 
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aadsan7



Joined: 04 Aug 2020
Posts: 1

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pic16f877a timer
PostPosted: Tue Aug 04, 2020 6:39 am     Reply with quote

Hello Dear,

I have a 1 button if I press 3 seconds than continue to project.

How I can do that ?

Thank you

Code:

// 4-Digit digital counter using PIC16F877A
// Common anode 7-segment display
// https://simple-circuit.com/
 
#include <16F877A.h>
#use delay(crystal=8000000)
 
short s;                       // Used to know button position
unsigned int digit, digit1, digit10, digit100,digit1000;
unsigned long i = 0;
unsigned int seg(unsigned int num) {
  switch (num) {
    case 0 : return 0xC0;
    case 1 : return 0xF9;
    case 2 : return 0xA4;
    case 3 : return 0xB0;
    case 4 : return 0x99;
    case 5 : return 0x92;
    case 6 : return 0x82;
    case 7 : return 0xF8;
    case 8 : return 0x80;
    case 9 : return 0x90;
    }
}
void main(){
  while(TRUE){
    if(input(PIN_D0) == 1)
      s = 1;
    if(s == 1) {
      if(input(PIN_D0) == 0) {
       s = 0;
       i++;
       if(i > 9999)
         i = 0;
      }
    }
    digit = i % 10;
    digit1 = seg(digit);
    output_c(0x0F);           // Turn off all displays
    output_b(digit1);         // Send ones digit
    output_c(0x07);           // Turn on display for ones
    delay_ms(2);
    digit = (i / 10) % 10;
    digit10 = seg(digit);
    output_c(0x0F);           // Turn off all displays
    output_b(digit10);        // Send tens digit
    output_c(0x0B);           // Turn on display for tens
    delay_ms(2);
    digit = (i / 100) % 10;
    digit100 = seg(digit);
    output_c(0x0F);           // Turn off all displays
    output_b(digit100);       // Send hundreds digit
    output_c(0x0D);           // Turn on display for hundreds
    delay_ms(2);
    digit = (i / 1000) % 10;
    digit1000 = seg(digit);
    output_c(0x0F);           // Turn off all displays
    output_b(digit1000);      // Send thousands digit
    output_c(0x0E);           // Turn on display for thousands
    delay_ms(2);
    }
}
temtronic



Joined: 01 Jul 2010
Posts: 9081
Location: Greensville,Ontario

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PostPosted: Tue Aug 04, 2020 7:39 am     Reply with quote

You can check the CCS manual... !!!

'How do I wait only a specified time for a button press?'

is in the FAQ section.
Slightly modified, it could do what you want...

Jay
Ttelmah



Joined: 11 Mar 2010
Posts: 19195

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PostPosted: Tue Aug 04, 2020 7:53 am     Reply with quote

Or look at previous threads. For example:

<http://www.ccsinfo.com/forum/viewtopic.php?t=58888>
Display posts from previous:   
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