Quick 4x4 keypad matrix question

[triton99]

I just assembled the same circuit using an 16f88 instead of the 16F877. Using the same circuit and code[plus changes for the 16F88], the program works perfect.

These are the register setting I use on the 16F88.

CMCON =     7                   '// PortA = digital I/O
OPTION_REG.7  =  0              '// Enable PORTB pull-ups
ADCON1  =  7 
ANSEL=%00000000                 '// set all analog pins to digital
ANSEL = 0                       '// disable ADC

With the circuit working on the 16F88, I resumed working on the 16F877.

I rebuilt and re-checked the wiring on the 16F877. I also got rid of all the extra LCDOUT and HSEROUT commands, while using only the SEROUT command, just like the Bruce's original example. It still has the weird problem. I just cant seem to pinpoint what is causing the error. Its weird too, because I dont have to be pressing the button fast....it does it even if when I press the button slowly. Every once in a while it will display the number below instead of the actual number. Arghhhhhh!!!! I love this stuff .

*Archangel, the "ANSI.INC" was from Darrel Taylors easy ANSI module for PBP.

http://www.pbpgroup.com/modules/wfse...hp?articleid=9

It is the main reason I wanted to use HSEROUT. The ansi.inc only works with the hardware USART, and not with SEROUT(2).

Thanks for the help, Im not giving up on this.

Sean