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LCD Questions

Brayden Sundstrand1
Intellectual 395 points
Other Parts Discussed in Thread: TM4C129XNCZAD

I'm trying to interface a different LCD with the TM4C129X dev kit and need to figure out if the existing drivers will be close or not. Unfortunately I cannot post the datasheet due to confidentiality reasons. The LCD uses parallel interface, 262k color 240*320 RGB and the driver IC is either a ILI9341V or an FT6206. This is the best information I could find on the FT6206: http://wenku.baidu.com/view/7bb29d718e9951e79b8927cd.html

My main concern is that the LCD I have only has Data 0:15 and no HSYNC or VSYNC pins. However, looking at the schematic of the dev kit two data pins and VSYNC and HSYNC are connected to ground. I am looking for some advice on how I can determine if this LCD will be relatively easy port over or if different or new drivers will need to be written.

Thank you!

  • 0
    TI__Intellectual 2615 points

    If you can't provide the datasheet for the display you're using can you provide the manufacturer and model number?

    How do you know that the display drivers are either ILI9341 or FT6206?  The data sheet for the ILI9341 seems to indicate that it's an Intel 8080 style controller:

    https://www.displaytech-us.com/sites/default/files/driver-ic-data-sheet/ILI9341_DS_V1.10_20110415.pdf

    In conjunction with the TM4C129x data sheet:

    http://www.ti.com/lit/ds/symlink/tm4c129xnczad.pdf

    It would appear, on the surface, that the devices would be compatible.  And there are references to Intel 8080 mode displays in hw_lcd.h.

    --Miles

  • 0 in reply to Stellaris Miles
    Intellectual 395 points

    Thank you for the response. I was able to get more information and the driver is actually the ILI9342C:

    http://en.lcdlcd.com/res/starteklcden/pdres/201306/20130608084954420.pdf

    The FT6206 is the driver for the touchpanel:

    http://wenku.baidu.com/view/7bb29d718e9951e79b8927cd.html

    I will take a closer look at the hw_lcd.h file. Thank you