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write to lcd module please help

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WDT was disabled, BODEN was disabled, LVP was disabled,
 

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Dear my brother Mike, Thank you thank you thnk you....It worked. My mistake is in mclr pin. I had connected it to ground. When I changed it to +5 V, it worked...Thank you very much
 
Well done Mike, MCLR huh ?

Yes, you can see it in the pictures. Pin 1 (MCLR) is connected to ground through a 10K resistor, just like the rest of the unused pins. On the 16F877 you cannot disable the external MCLR so you have to have it pulled up, not down.

Too bad such a seemingly small mistake caused so much grief, but in the digital world every little thing is important.

Mike
 
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