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[wxsig] Crashing and random characters

John Koster w9ddd at tapr.org
Tue Jul 22 01:18:59 UTC 2008

So am I drawing the right conclusion?  The processor chip from the T238+
kit was bad?

On Mon, 21 Jul 2008, Guy Story KC5GOI wrote:

> I wanted to let the list know what I have found out and it took some 
> patience.  I took advantage of the fact that the only difference between 
> the older kits I have been using and the newer kit was the circuit 
> board.  It reduced the variables.  I have had faith in the code that has 
> been released so I started there.  Since the microprocessors are the 
> same throughout the projects life span, I took a microprocessor that has 
> been running for multiple years and flashed it to the Wills most current 
> version and placed that on an older board.  One week later I still had 
> the heart beat.  That ruled out sensors, cabling, code, older board (I 
> could duplicate the crashing problem on the newer processor on the older 
> board) and pointed to the processor.
> I then swapped the processor to the current circuit boards, everything 
> else the same.  Ten days later I still have the heart beat and readings. 
> I am not sure how soon I can get it back in service but W5NGU-3 will 
> soon start to give wx data from 300ft again. 
> There is one fatality, the baro sensor is not reverse polarity 
> protected.  I am sure that is already known but just encase someone sees 
> this post and does not know it, I am putting it in.
> 73
> Guy
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John, W9DDD

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