Thank you very much for the quick reply!
I am not using an existing CPU core for the Papilio, but instead I have created my own version of a modified Z80.
I am currently not planning on using the Arduino that comes as part of the papilioDuo board, since I believe it might impact the frame-rate .
I am working on a GameBoy classic clone, (all from scratch RTL, no existing CPU), and I would like to have my own LCD driver for the task.
I have already some Verilog code that attempts to connect with the SSD1289, however I can't make it to display any colors.
I was planning on using a logic analyser to capture the first few milliseconds of a working ArduinoMega LCD initialization routine, using the UTFT C++ Arduino libraries from Henning Karlsen, and then try to see how far off my controller is from the reference waveforms.
I was wondering if there was a pre-existing opensource HDL core to drive the SSD1289 from the Spartan6, or some tip on to make this little monster it work.
Getting my hands on a logic analyser has proved a difficult task far :(, I can't still figure out the correct frequency to interface with the SSD1289 (I am guessing some where between 16Mhz < f < 32Mhz should work).
Thanks again for your help, and by the way your Papilio boards rocks!