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Topics - coolbrian

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ARM Cortex / LPC1114 Auto-baud Inconsistency
« on: July 11, 2013, 04:58:12 am »
Hello all,

I just tried the Flash Magic to program my LPC1114 board.  However, it often fails at the auto-baud stage.  Yes, it sometimes passes the auto-baud stage, but rarely.  I always pull low the ISP pin and reset the board before trying a new cycle.

If I manually sync the baud rate with a terminal, the subsequent programming will go smoothly.
I am not sure what is going on.  I have attached the debug log, which I cannot comprehend, to help isolate the problem.

One thing to note is that when manually doing the auto-baud stage, the terminal will often echo garbled bytes when '?' is sent.
I have to try again with <ENTER> then '?'.  This may have to be tried several times.
When 'Synchronized' string is received, sending 'Synchronized' again will complete the auto-baud stage. 
ISP commands will then go smoothly.

If it is a hardware connection problem, I have no idea why the lengthy programming steps would go smoothly after a successful auto-baud.

P.S.  I tried the latest version, which is 7.50.

Thanks in advance for any pointers.


Brian

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