I HAVE COMPLETED A CODE IN C FOR AT89C2051 MCU..IT IS WORKING CORRECTTLY ON PROTEUS DESIGN BUT WHEN I AM GOING TO PROGRAM THE IC THROUGH PROGRAMMER IT PROGRAMS BUT VARIFICATION FAILS AT 1BYTE...PLS SMONE HELP ME OUT FROM THIS??/
No - Proteus can not tell you if your program is working.
But it can catch a number of errors in your program.
So it can screen your code.
Just that lots of errors will not be caught since the simulator is not 100% perfect. Only the real hardware is 100% compatible with the real hardware - and even then it's important to note that the real hardware may not be 100% compatible with the documentation.
does any one has solution regarding my problem???
Sounds like a programma problem. Have you asked the manufacturerer? doos it have a forum?