Author Topic: Re: Debugging ISP Problems  (Read 4271 times)

marquisparent

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Re: Debugging ISP Problems
« on: November 20, 2009, 09:04:36 am »
I notice a talk about the crystal freq.

Im using a P89V51RB2 and RC2, and its not possible to change the Oscillator Frequency.
I`m running a 12mhz at this point and my comm doesn`t work.
it seems like im have a U coming in....i have to hook it up to hyper terminal to see if its a U.

Should I use a 11.0592Mhz crystal?

Andy Ayre

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Re: Re: Debugging ISP Problems
« Reply #1 on: November 20, 2009, 07:59:33 pm »
12MHz should work for autobauding at 9600 baud at least.

Andy
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support at esacademy dot com

marquisparent

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Re: Debugging ISP Problems
« Reply #2 on: November 23, 2009, 06:58:32 pm »
I GOT HER TO WORK NOW.....its great