If you have an scope, watch the ground for spikes. I expected to see some caps in the area of 47uF but cant make them out on your board. Stepper drives are NOISEY!!! You may be getting a spike on ground enough to cause the pic to reset.
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Re: Unstable 18f458
If you have an scope, watch the ground for spikes. I expected to see some caps in the area of 47uF but cant make them out on your board. Stepper drives are NOISEY!!! You may be getting a spike on ground enough to cause the pic to reset.
-Bert
The glass is not half full or half empty, Its twice as big as needed for the job!
http://foamcasualty.com/ - Warbird R/C scratch building with foam!
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Re: Unstable 18f458
Yup, what he said.
A sprinkling of caps where ever you can fit them in. Most important have them as near to the MCU VSSs and VDDs as you can.
Dave
Always wear safety glasses while programming.
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