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

Tom,

Have you tried running with a battery?
I tried last time, but it didn't work for me.  The SX still resets or go crazy.

See [url]http://forums.parallax.com/forums/default.aspx?f=7&m=105106&g=105384#m105384[/url]

Did you enable the watchdog?  Are you using hs1, hs2, hs3 or xt2 for your resonator?

Guenther,

Tom's experience is proof that having sufficient bypass caps still does not solve the problems with sparks nearby SXes.
A few other boards I designed with very close bypass caps also has the same problem with sparks.

My experience now tells me that the further the SX is away from the sparks, the more immune it is to them.
I would recommend 2 meters as a starting point and slowly move further away if it still resets.

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