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???
02/09/10 07:49
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#172990 - may be in softice mode
Responding to: ???'s previous message
You might have gotetn it into softice mode, if the bootloader was version 4 (was it?)

http://www.8052.com/forum/read/126300
http://www.efton.sk/t0t1/unsoftice.htm

These unfortunately describe only the cause. There is a method how to deduce from symptoms whether this is really the case, but I don't remember it. It must be buried somewhere in the bunch of posts I've written during the course of time on this topic here and on the flashmagic forum.

JW

List of 4 messages in thread
TopicAuthorDate
P89V51RD2 stopped programing via ISP!            01/01/70 00:00      
   may be in softice mode            01/01/70 00:00      
      still no communication            01/01/70 00:00      
         Rx pin might get..            01/01/70 00:00      

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