How to know wheather my 89S51 have the program or not?

[sunil]

 

Hi,

I am very new to 8051 micro controller. Just i wanted to learn how to use it. Recently i bought a USB Programmer from ebay. I wrote a simple code for glowing LED in keil software. I converted into .hex file and dumped into AT89S51 using USB Programmer through "progisp" software. the message shown "program dumped successfully". But when i connected the chip in the breadboard, it is not working. What would be the problem? Can u tell me how to see the program in the IC wheather really dumped or not?? Can u pls suggest me..

Thanks in advance….

 

[Prabakaran P M]

There is something called blank check in prog isp. you can use that to find an AT89S51 is dumped with a code or not.

[Ashutosh Bhatt]

have you build crystal circuit and reset circuit on bread board for 89S51 micro controller?

[sunil]

Yes. i have connected the crystal circuit and reset

[sunil]

Yes. I have connected the Oscillator circuit with 20MHz crystal and 2X22pF capacitors.

[Ashutosh Bhatt]

post ur program and circuit

[Author]

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