Just got my CFAG320240CX-TFH-T display working over GPIO on the Soekris Net5501 using a NetBSD kernel and it works great. I do have a question, though:
Upon issuing the DisplayOn (0x59) command, I see text and graphical garbage being displayed on the screen. This is easily removed by clearing both the graphic and text layers with by sending NULL's and space characters respectively, but I'm curious if this garbage is coming from some sort of internal display storage, and if so, is it possible for me to replace it with something other than garbage (for instance, a pretty image).
Can somebody please provide some guidance here?..just looking for tools/code or an explanation how to do this, if possible.
Thank You,
medium
Upon issuing the DisplayOn (0x59) command, I see text and graphical garbage being displayed on the screen. This is easily removed by clearing both the graphic and text layers with by sending NULL's and space characters respectively, but I'm curious if this garbage is coming from some sort of internal display storage, and if so, is it possible for me to replace it with something other than garbage (for instance, a pretty image).
Can somebody please provide some guidance here?..just looking for tools/code or an explanation how to do this, if possible.
Thank You,
medium
Looking for additional LCD resources? Check out our LCD blog for the latest developments in LCD technology.