Hi Bob,

the same thing happened to me this weekend !


As I can not find the 16F648 to buy here in Brazil, I´m using the 16f877 to do the tests.

I Just removed the CMCON line from the code and changed the cristal to 10 Mhz, but the display still not responding.

I have conected the Vout pin to Gnd via a 1 uf Cap.

I´m powering up the display with 5 V (maybe I should change to 3,3v)

I have seen other project powering up the display with 5V with out problems.

After some hours testin the circuit and the software with no success, I decided to test another display. But the results were the same... a blank display.

If could someone help us, it will be apreciated.

Regards !

Sérgio