At89s51 program verify error

[niranjan23]

I have problem here

I am programming AT89S51 by using Asim's ISP Loader
board with ISP V3.0a software...

while programming software read and verify the uC IC but it cannot write the hex file ..It shows error "Program verify error @ address 0000h"

what is the cause of this error ....can any one help me for this.......

 

[tpetar]

This programmer works 100%!

Check all connections.
Check +5V source.
Check what uC you select in software.
Try other uC.