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Steve M. Taylor
12/09/11 02:53
Read: 444 times
State College

#185044 - Judicious fiddling
Responding to: Jan Waclawek'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.


List of 9 messages in thread
89V51, Flashmagic and reset generator      Steve M. Taylor      12/08/11 11:49      
   advanced options      Jan Waclawek      12/08/11 15:46      
      Judicious fiddling      Steve M. Taylor      12/09/11 02:53      
         reliability of P89V51Rx2 autobaud      Jan Waclawek      12/09/11 04:28      
            Depressing      Steve M. Taylor      12/14/11 11:25      
               you won't like the answer      Jan Waclawek      12/15/11 02:47      
                  Fixed baud ?      Steve M. Taylor      12/15/11 04:51      
                     theory and practice      Jan Waclawek      12/15/11 14:43      
   Could try this...      Michael Karas      12/08/11 19:59      

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