Hopefully someone can help.
I am using the Adafruit TFP401 HDMI decoder board with a 40 pin TTL RGB LCD (3.5") I found.
Resolution is quite low at 320x240 so I am wondering if it's truly possible to drive a display properly with this low resolution over HDMI.
I have the datasheet for the LCD and have used this to enter the following settings into the boot\config.txt
Code: Select all
hdmi_cvt=320 240 75 1 0 0 1 hdmi_group=2 hdmi_mode=87 hdmi_timings=320 0 20 10 68 240 0 4 2 18 0 0 0 75 0 5760000 1
The display is shifted slightly to the right cutting off part of the display.
I don't really know what the hsync pulse and vsync pulse parameters should be so I have been doing some trial and error.
Is there another way I can find out the correct values?
Here is a link to the datasheet for the lcd:
http://www.orientdisplay.com/pdf/AFY320 ... N12NTM.pdf