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

[quote="Bean (Hitt Consulting)"]
Just throwing some ideas out there:
How long are the leads/tracks from the SX to the resonator ?
Do you have one of the thru-hole 50 MHz resonators you can try ?
When you do have the scope probe on the osc pin, does the waveform change when you spray the SX with cold spray ?

This is a real stumper, usually changing the OSC setting or using the brown-out setting fixes most startup problems.

Bean.

[/quote]Bean,
 

I have Very short leads (Less than 1/4 inch for each lead) .

The boards are SMT boards, with only room for the SMT resonator. 

The waveform is the same when the chip is hit with cold spray or not. 

 

-Dan

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