Atmel 89c52 exit from the program after few minutes...pls help

Hello everybody..I am facing problem while am run the following program on Atmel 89c52.Actualy am running a stepper motor using STK-672-040 ,Every time i power on the circuit all working fine but after...
Atmel 89c52 exit from the program after few minutes...pls help

Hello everybody..I am facing problem while am run the following program on Atmel 89c52.Actualy am running a stepper motor using STK-672-040 ,Every time i power on the circuit all working fine but after...
Atmel 89c52 exit from the program after few minutes...pls help

Hello everybody..I am facing problem while am run the following program on Atmel 89c52.Actualy am running a stepper motor using STK-672-040 ,Every time i power on the circuit all working fine but after...
Atmel 89c52 exit from the program after few minutes...pls help

Hello everybody..I am facing problem while am run the following program on Atmel 89c52.Actualy am running a stepper motor using STK-672-040 ,Every time i power on the circuit all working fine but after...
Are the .hex files generated by uvision compatible to Atmel 89C52 chip?

I have written my C code using uvision and tested it on the MCB517AC evaluation board. It works perfectly. But, when I use the .hex file( being created by uvision ) and program it into 89C52, through...