LCD interface with PIC16F877

nanti2011 said:

Hi,
I am also facing the problem as Dileep had.I have used assembly code to program PIC16F877 which am attaching. When the power is on,lcd is showing black boxes in the 1st line.

1.Lcd 4-6 pins are connected to pin 2-4 of portc(Pc2-RS,Pc3-R/W,Pc4-EN)
2. Lcd 7-14 pins are connected to pin 0-7 of portd(data lines)
3. Lcd 1-3 pins are connected to potentiometer.
Regards,
Moumita

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ericgibbs said:

hi,
Your program is not intialising the LCD.

Also when you Post code, paste it into the Reply box, select ALL the code and the click the '#' sign in the above Menu
This will retain the text formatting.

Look here for LCD programming tutorial

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transistance said:

I should get back into assembly, PIC Basic Pro is just numbing my brain.

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transistance said:

PIC Basic Pro basically utilizes an ASM linker, right? My 16F877 projects always end up running out of memory.

Seems odd to me since I was used to 68HC12, and programming in asm.

This is probably mostly due to the inefficiency of PBP, am I right?

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