can anyone help me?
im trying to build a countdown timer using the assembly language

requirements:
1. 1 seven segment for the minutes and 2 seven segment for the seconds
2. the maximum time will be 9:59
3. there are 4 switches for the input. which accepts time in "minute"
ex: 5 minutes, 8 minutes..
4. a RESET button, that when pressed, the count will stop.
5. an LED will turn on when the count reaches 0:00

the circuit is attached... i appreciate your kindness!!

 

is there any sample program of this using pic c compiler?

 

Welcome to AAC!

A thread belongs to the OP (original poster). Trying to take over someone elses thread is called hijacking, which is not allowed at All About Circuits. I have therefore given you a thread of your very own.

This was split from http://forum.allaboutcircuits.com/threads/countdown-timer-using-pic16f877a.43574/#post-970791

 

http://pic-microcontroller.com/pic16f877-up-down-counter-code-and-proteus-simulation/

 

is there any sample program of this using pic c compiler

Google is a good starting gpoint.