Using a raw LCD Display
Cole Logan
Posts: 196
I was wondering if anybody has interfaced the propeller to a raw LCD display. I have one that I pulled out of a restaurant POS terminal. Its a Samsung LT121S1-153. I've attached the datasheet for it. It has 8 pins for each color, pin for v sync and one for H sync, data clock, and data enable
Looking at the datasheet it looks like you would have to pull the data enable High then for each pixal put the correct color on the color data pins and strobe the data clock pin high.
What I'm not sure about but what I assume is that you would bring the V sync low for a new line and you would bring H sync low to start a new screen.
So what I'm wanting to know from the more experienced people on here is does this sound right. And do you thing that it would be possible to use a propeller as a driver for this type of screen. I know that I would have to tie some of the color data pins together due to the not being enough pins
Looking at the datasheet it looks like you would have to pull the data enable High then for each pixal put the correct color on the color data pins and strobe the data clock pin high.
What I'm not sure about but what I assume is that you would bring the V sync low for a new line and you would bring H sync low to start a new screen.
So what I'm wanting to know from the more experienced people on here is does this sound right. And do you thing that it would be possible to use a propeller as a driver for this type of screen. I know that I would have to tie some of the color data pins together due to the not being enough pins
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The propeller can give RGB 2:2:2 without DAC. The only obscure point is how to get the clock signal...