LCD problems

can i know whats the differences between a 4 bit LCD and a 8 bit LCD?
4 bit LCD - for PIC16F84?
8 bit LCD - for PIC16F877?

is it possible to use PIC16F877 to interface a 4 bit LCD??

i bought an LCD of model PHILIPS HD44780. is the spec list the same as any model of HD44780?

can u recommend me some websites that has sample assembly code for LCD displays?? is there any in this website??

Kav_06 said:

can i know whats the differences between a 4 bit LCD and a 8 bit LCD?
4 bit LCD - for PIC16F84?
8 bit LCD - for PIC16F877?

is it possible to use PIC16F877 to interface a 4 bit LCD??

i bought an LCD of model PHILIPS HD44780. is the spec list the same as any model of HD44780?

can u recommend me some websites that has sample assembly code for LCD displays?? is there any in this website??

Click to expand...

They are exactly the same, you can access the LCD in either 4 or 8 bit mode, 8 bit is slightly faster, but 4 bit saves you I/O pins.

HD44780 is an Hitachi number, and is the industry standard for text LCD modules.

For suitable PIC code check my PIC tutorials which give reliable proven code using 4 bit mode and either software or hardware timing. There seems very little reason to use 8 bit mode, except it makes the code slightly simpler.