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Michael Karas
04/29/12 12:26
Read: 386 times
Beaverton Or
USA


 
Msg Score: +2
 +2 Good Answer/Helpful
#187273 - Have you checked the conditions?
Responding to: ???'s previous message
I do not have any clue as to what may be going on with your ISP programming setup....but I could ask this:

Have you carefully studied the conditions and procedures under which the 89S8253 is supposed to clear the signature? You would check this in the data sheet and/or any App Notes from the manufacturer (Atmel I presume) that describe the ISP programming commands and conditions. With this information in-hand you should be in a much better position to analyze your specific process to see if what you are doing is causing this sporadic erasure behavior.

Michael Karas


List of 2 messages in thread
TopicAuthorDate
89S8252 problem      Edinson Salguero      04/29/12 06:59      
   Have you checked the conditions?        Michael Karas      04/29/12 12:26      

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