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[51] Help spi programming 89sxx

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vivek_keviv123

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Have any body build a spi 89s52 programmer with db9 rs232 protocol(without any extra supporting micro controller) ? I have successfully build a simple spi rs232 programmer for Atmega series which works perfectly with pony-prog.

it could be very helpful to me if any body post here a simple rs232 spi 89s52 programmer circuit (without supporting chip)and software. :cry:
 

I have successfully build a simple spi rs232 programmer for Atmega series which works perfectly with pony-prog.
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The same will work for 89sxx chips.
 

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