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???
12/09/11 09:53
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#185044 - Judicious fiddling
Responding to: ???'s previous message
Thanks Guys,

Well, half an hour of messing in advanced options gained us programming - but only at 9600 baud, despite having an 11.0592 Mhz crystal. T1=80 T2=400 seems to "work"

It looks to me like T2 effectively sets the delay before it starts to set ISP, after a T1 reset interval, but our reset interval is defined by the 701, at between 500 and 200msec - which means the ISP watchdog timer might be tripping us up.

Steve

List of 9 messages in thread
TopicAuthorDate
89V51, Flashmagic and reset generator            01/01/70 00:00      
   advanced options            01/01/70 00:00      
      Judicious fiddling            01/01/70 00:00      
         reliability of P89V51Rx2 autobaud            01/01/70 00:00      
            Depressing            01/01/70 00:00      
               you won't like the answer            01/01/70 00:00      
                  Fixed baud ?            01/01/70 00:00      
                     theory and practice            01/01/70 00:00      
   Could try this...            01/01/70 00:00      

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