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starter kit LCD

Rajas Yaso
Intellectual 280 points

Hai

We were getting reference from the TI's Starter kit,In that design they were using 24-bit Resistive TFT LCD  from Newhaven displays.But we were using NAND flash so we allocate the pins for NAND from LCD pins, we doesn't provide additional 8 pins (LCD_DATA16 - LCD_DATA23).

For LCD we provide 16 data pins (LCD_DATA0-LCD_DATA15),Does 4.3" newhaven display supports this suituation.??

Clarify me


Thanks in advance.

  • 0
    TI__Guru**** 393215 points
    Hi Rajas,
     
    If you use an 8-bit NAND you can still connect the full 24-bit Newhaven LCD. Another solution would be to use a 16-bit NAND and connect the LCD in RGB 5-6-5 mode, as shown on AM335X Errata Figure 3. If you choose this solution you will have to connect bits R0-R2, G0-G1 and B0-B2 of the LCD panel to GND, and of course you will lose color depth.
  • 0 in reply to Biser Gatchev-XID
    Intellectual 280 points

    Hai Biser

    Currently we were using 16-bit NAND flash from MICRON,Whether we will use 8 bit NAND flash,it may shows any variation in the Timing Signals or any other changes???

    As per previous discussion,you noted that ,you will lose color depth.....But other than color changes it shows any delay in response??

    Thanks in advance

  • 0 in reply to Rajas Yaso
    TI__Guru**** 393215 points
    Hi Rajas,
     
    If you switch to 8-bit NAND you will have about 50% lower R/W data rate on the GPMC. GPMC timing shouldn't be affected, maybe the GPMC configuration will need to be changed for 8-bit device.
     
    For the LCD, except losing color depth there should be no timing changes, it will simply receive the lowest RGB bits as zeroes.