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

Added the resistor in series with MCLR, and trying to reprogram after programming it to run
OSCXT2, I'm still having the same trouble. No matter how I reset it, I cannot reporgram it. 

 

Also, it's getting to the point that in order to reprogram it, I need 

to pull the chip from the circuit, and program it on a different board with

nothing attached, and it programs just fine. Many different chips act the same

way. 

 

So, what am I missing here?  It reprograms from debug flawlessly! It won't

reprogram from 'program' at all. 

 

-Dan

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