Hello, My question is that I have written program for PIC16C74A about showing of two channels analog signal's values on LCD, and it is succesful But when I have writen the same program into PIC16F877, result is unsuccesful, I changed only Processor type and #include "pic16f877.inc" and ADRES register to ADRESH. Configuration bits Oscillator XT WDT OFF Power Up Timer ON Code Protect OFF Brown Out Detect ON Low Voltage Program ENABLED Data EE Protect OFF Flash Program Write Enabled Background Debug Disabled Programming is succesful but program is not working correctly in circuit. what is my mistakes, Thanks for your helps. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com