Listing Program At89s51 Circuit

Jul 15, 2013 - To program and verify the AT89S51 in the serial programming mode, the. Enable serial programming by sending the Programming Enable. AT89S51 manual programmer circuit. Thread starter aryyy; Start. I think if i get a comp and use the parallel port to program the AT89s51 with the following circuit.

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Programmer details thanks papabravo 4 d help.i am new 2 this world and hve very less idea bout al this. I started wid AT89S51 just this summer and am tryin to learn how to use its various aspects.i dont have a comp at my disposal at my current situation.so i decided to make a programmer with which i can program the ucontroller without the help of a comp.it has to b programmed parallel with setting the address and data at p1-p2.3 and p0 respectectively by pressing ALE/Prog low for some time.i was working with the help of the datasheet of the ucontroller.details are given in my other thread couple of threads below this.please analize the details and tell me wat to do.

This is a classic chicken and egg problem. You want a device that will allow you to enter small programs into a processor and you don't have access to a computer. The solution you want may require a computer so we are at an impasse.

Long ago computers had front panels. A front panel was an array of switches and lights that allowed the setting of an address register and a data register and could write the contents of the data register to memory. There are at least three approaches to the problem. There is the parallel method, there is the serial method, and there is the ISP method.