I am trying to make a simple counter using pic16f877a. i want to count each time a push button is pressed, that is taking one press as one count, regardless of how long the button is pressed.

Softwares i am using are MPLAB X IDE and XC8 compiler. i use pickit 3.5. i use an indicator LED to see whether the code is working.

The thing is, i have barely achieved what i needed. but the code seems unstable. it works sometimes but not in others. For example, let say the code worked now and LED blinked correctly when one of two connected buttons pushed. then if i "make" and "download" the program again without any edits to the code in MPLAB X IDE, the LED won't blink. while writing this i tested several times just by making and downloading using MPLAB IDE, without changing anything hardware or code, and then it worked. the only thing that was changed in those situations was TIME. so i suspect this has something to do with resetting of the pic although i have no idea. Never worked on 2 consecutive "make and download"s.

Please help. Thank you very much.

I am trying to make a simple counter using pic16f877a. I want to count each time a push button is pressed, that is taking one press as one count, regardless of how long the button is pressed.

The software I am using are MPLAB X IDE and XC8 compiler. I use Pickit 3.5. I use an indicator LED to see whether the code is working.

The thing is, I have barely achieved what I needed, but the code seems unstable. It works sometimes but not in others. For example, let say the code worked now and LED blinked correctly when one of two connected buttons pushed. Then if I "make" and "download" the program again without any edits to the code in MPLAB X IDE, the LED won't blink. While writing this I tested several times just by making and downloading using MPLAB IDE, without changing anything hardware or code, and then it worked. The only thing that was changed in those situations was TIME. I suspect this has something to do with resetting of the PIC although I have no idea. Never worked on 2 consecutive "make and download"s.

I am trying to make a simple counter using pic16f877a. i want to count each time a push button is pressed, that is taking one press as one count, regardless of how long the button is pressed.

I am trying to make a simple counter using pic16f877a. i want to count each time a push button is pressed, that is taking one press as one count, regardless of how long the button is pressed.

I am trying to make a simple counter using pic16f877a. i want to count each time a push button is pressed, that is taking one press as one count, regardless of how long the button is pressed.

I am trying to make a simple counter using pic16f877a. i want to count each time a push button is pressed, that is taking one press as one count, regardless of how long the button is pressed.