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Welcome all ,

I need a help about interfacing pic16f877a micro-controller with a CRT or LCD screen via VGA cable.

I just want to display only a colored text from the pic on the screen.

any help is appreciated.

thx in advance.
Posted 23-Mar-13 17:27pm
Edited 23-Mar-13 17:35pm

1 solution

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Solution 1

That is really not going to be too easy.
The problem is that VGA signals are pixel and row oriented, rather than character or vector based. You can do it ([^] is an example) but frankly I think you will be using most of your processing capacity just servicing the video signal and converting your display to video signal format.

There are simpler ways: you can get LCD modules that are character or graphics based and include an LCD controller to take the load off your processor. Might be a lot cheaper and quicker to interface!
Al-Najjar Ali Moh'd 24-Mar-13 14:08pm
do you mean a character lcd or something like it??

I actually looking for a wide screen say 800x600 lcd. is there available such one without VGA cable ? if so, can you plz tell me about it :)

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