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

I guess I wan't clear enough in my first post. The resonator is now
running. I'm monitoring it with a scope. 49.98Mhz. 
Resonator is 50Mhz. Surface mount Murata purchased from Parallax. 

10K feedback, 5pF to ground from OSC2, 1Meg from OSC2 to ground. 

 

I think something is wrong with the I/O port. It appears be broke when

operating at 3.3 Volts. Again, when the chip starts up from 5 volts, my

serial data output goes high. When the chip starts up at 3.3 volts, that

same serial data output pin stays at ground. 3 chips in a row. Nothing

hooked to the pin when I test this (Only a scope).

 

-Dan

 


FPGA's are easier than this freaking chip.

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