We have the im2:0 pulled 011. The data bus is connected 17-10, which give us an 8 bit data bus.
We can write to the pixel ram and get color's. This tells us that we have the connections right, and have the control lines moving the right way to program the setup data to the controller.
We can not set a GRAM address to set a pixel. If we write to the gram, it always starts out with the
top left pixel in the display. Each successive write to the GRAM will color the next pixel to the right. What we need is a good example of how to set a few pixels on the display, with the proper toggleing of the control lines to make this happen.
Right now we are writing the address to the gram horizontal register, 200, and the vertical register 201. Then we write the color data to the pixel gram address at 202. The writes to 200 and 201 do not seem to have any effect. We need the control line sequence to make this work, and a mapping of the 2 registers to the actual pixels on the screen would be nice. There are a lot of possible permutations on how the control lines should be driven to make this display work properly. We just need the information on the proper way.
We are running out of time on making this display work with the Microchip Graphics library.