Timer in 89c4051

hi, I am trying to use TIMER0 for delay in 89C4051 and this delay is working on Keil at debug time. But when I am trying same code on hardware it is not working. plz suggest me. code is given below...
Timer in 89c4051

hi, I am trying to use TIMER0 for delay in 89C4051 and this delay is working on Keil at debug time. But when I am trying same code on hardware it is not working. plz suggest me. code is given below...
help me in DAC using 89c4051

Sir, I am using 89c4051 to convert digital to analog. pin 1.0 and 1.1 are used, but I am confused how to us? please help me I don't know anything.
help me in DAC using 89c4051

Sir, I am using 89c4051 to convert digital to analog. pin 1.0 and 1.1 are used, but I am confused how to us? please help me I don't know anything.