• We recently switched our forum platform. If you experience any issues please email support@crystalfontz.com

CFAG320240(CX-TFH-T-TS) Help


New member
Hi everyone,

I am working to interface a CrystalFontz display with a Rabbit (RCM4010 - http://www.rabbitsemiconductor.com/products/rcm4000/) and am a little confused. I have followed the init command examples found for this model, including the one in the manual - but I am still unsure as to what the result of this initialization code should be?

I have adapted the functions to run in the Dynamic C programming but I now I feel like I am spinning my tires. Iam very new to embedded programming and the C programming language and I know that eventually I will succeed, but after how many more hours of frustration. If someone could please give me a bump in the right direction, or at least tell me what the results of the init should be, I would be most grateful.

Also, is MWRITE the command used to write to the LCD memory to generate objects on the screen?

Thanks all.

Looking for additional LCD resources? Check out our LCD blog for the latest developments in LCD technology.


New member
So I'm still not sure if I have successfully initialized the display. However, I am able to write characters to it, clear the layers, and move the cursor. Does this mean that my attempt has worked? :confused: I would imagine that being able to display something is a good thing but again, I'm not altogether sure.

Once I'm comfortable manipulating text, I hope to start on the graphics next. Any pointers would be welcome.