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Displaying BMP files on GRaphic LCD

Ramachandra

New member
Could any one please let me know the method of displaying the
BMP files on the Graphic LCD " CFA240128D-FMI-T" which uses LCD controller LC7981

Thanks
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CF Tech

Administrator
You basically need some utility on the PC that will convert a BMP to the correct data definitions for your processor.

I'll PM you an ancient one I wrote years ago.
 

Ramachandra

New member
Graphic LCD CFAG240128D

I have generated binary image of a BMP file using my own utility.
Now I understood the BMP file format.

Now I an trying to dump these characters to the LCD, but I do not know the reason, some thing is getting messed up.
It displays till 144 bits in row 0 and then goes blank or some times some other part of the LCD pixes are ON.
I have set the LCD to graphic mode with a necessary initialiozation. But I do not know how far it is correct

Can you please provide me , a step by step guide to display the binary data to LCD , with initialization details. (I count not get much info on this in the product spec , that I have downloaded from crystalfontz website

Thanks
 

CF Tech

Administrator
That same code I PM'd you has a routine to display the bitmap.

What you are describing sounds like a hardware or cable problem. How long is the cable? You might want to try a 0.1uF decoupling capacitor between ground and +5v at the display.
 
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