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4 bit binary counter

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hemnath

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can anyone help me how to do 4 bit binary counter program using pic microcontroller in ccs c compiler?
 

What kind of help you are looking for.
 

4-bit binary counter (using 4 LEDs) that counts from 0 to 15 (0000-1111 binary). four LEDs are connected to RB0 through RB3 port pins of PIC18F2520. A push button switch is connected to pin RA1 to provide input for the counter. The counter starts from 0, and increase by 1 every time the button is pressed. When the counter reaches 15 (all LEDs on), it will reset to 0 on the next press of the button.

pls explain how to do in ccs c compiler?

- - - Updated - - -

This is i ve tried in CCS c compiler. please correct me if wrong

Code C - [expand]
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#include "18F2520.h"
#fuses HS,NOPROTECT,INTRC_IO
#use delay(clock=4000000)
 
#define PUSH_BUTTON PIN_A1
 
void main()
{
setup_oscillator(OSC_4MHZ);
set_tris_a(0x02);
set_tris_b(0x0F);
 
int count;
count = 0;
do
{
if(input_state(PUSH_BUTTON)==0)
{
count++;
output_b(count);
}while(count==16) count=0;
}while(1);
}
 
Last edited by a moderator:

my program works fine with certain changes. when i pressed the button once, corresponding LED must glow. but due to switch bouncing, i've got some problem. i have reduced with some delays in the program. but still i want a perfect solution. how to do debouncing program in ccs c compiler? please help me.
 

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