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So many seems do do things with graphics, so I have to try as well with my XC-1 V1.0 card.
I will connect it to a 320*240 TFT, 262k colours screen with touchscreen. My goal is not to have the most impressive graphics, instead to have a minimum lag between the touchscreen and the screen with a high refreshrate of the touchscreen sampling. Doing circles with a "mini Paint" on the touch should create circles on the screen, and not something with 7 sides.
I HATE lag.
From wiki:
May's Law:
Software efficiency halves every 18 months, compensating Moore's Law.
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The init
Hmm, it is a little bit similair to program the init talking to a graphic chip as to talk to a Audio CODEC, but it's more pages in the pdf with the graphics. I hope am able to get an readback from the graphic chip soon.
Connected the hardware and
Connected the hardware and started to write the init. The 2-way communication to the GRAM should be a good combo with XMOS. No need to use up the XMOS memory.
My bibles
I use the Truly tft-g240320UTSW-92W with resistive touch and GRAM. But I dont think it's recomended for new designs anymore. Nowadays they have solutions with multitouch. Ckeck out
http://www.trulydisplays.com/tft/index.html
My own bible:
http://www.trulydisplays.com/tft/driveric/Driver%20IC%20LGDP4531.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/51713a.pdf
What LCD will you be using?
I like your idea of adding a LCD to the XC-1. What LCD will you be using?
I've taken the liberty of adding your project to the list of other video and graphics projects at the XMOS Video Interest Group (XVIG)
HW
I have prepared the ports on the XC1 so I can connect ribbon cables to it.
i<tsch
OSX dosn't tsch ITS, hobbled...
PlasticLogic A4 size, 0 energy screen, (it's memory!).
Simmular price points.
Absolute business tool.
Lifecycle forever, 100% return on investment.
lil Plastic 1ups the bigeye.
QUE
http://images.barnesandnoble.com/pimages/wl/que/que_home.jpg
Shawn
PS multitouch~shmultitouch, have you seen WUW/6th-sense? wild!
Atmel
But thanks Shawn, I saw the Atmel multitouch chip some month ago. When people starts to take multisouch for granted in iXXX products - everyone has to follow I guess.
Well, I was playing with
Well, I was playing with PIC32 earlier, so the touch-screen is this one.
http://www.microchipdirect.com/images/devtools/AC164127.jpg
Microchip has put an extra connector to it, so you can acess more pins than the PIC32 does.
It is many complains of the limited XMOS chip-memory, but if you see it from a MCU perspective, you are not used to much RAM.
Touch screen sensor?
Atmel has a touch screen controller chip worth checking out.
Check C
Shawn