In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote:

I had designed a production product for my company using the SX20.
 

When the products was built I received 35 pieces initially.

 

When I tested them they kept failing.

 

After some investigation, I found that the SX would run for about 10 seconds then stop. Hmmm...

 

I spent a whole day troubleshooting the problem. Only to find that the assemblers had switch the 10K /MCLR pull-up resistor and the 0.1uF by-pass capacitor. The cap would keep the SX running for a little while, then it would go into reset after the cap was completely charged up. After powering down (the cap would discharge) the unit would operate again for a little while.

 

I'm telling you this story in hopes that this might help someone else if you ever run into a similar problem.

 

Now to go raise some *%$#*  with the assemblers. Arrrggg. At least it is an easy fix...

 

Bean.

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