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Question about CFAG320240C

LCD > ME

New member
I have this LCD working on an 18F4520 PIC... it is running at 8MHz, and after initializing it I just enter a while(1) loop in main. If I do anything at all basically in the while loop, the LCD flickers or the refresh is terrible. Shouldnt the LCD be done initializing, and be independent of the PIC basically unless I specifically write to it again???
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LCD > ME

New member
Yes it should.

There must be something else going on.

Noise on Vee or Vo or Gnd?
Should I be tying Vee to anyhing, the negative voltage output? Its a N/C off the LCD at the moment cause I thought it was connected internally...And I'm using the POT on the back of the LCD... so Vo is a N/C as far as I can remember as well.
 
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