Senior Member
Joined: 15/06/2020
Location: AustraliaPosts: 222
| Posted: 03:56pm 08 Jun 2025 |
G'day Peter,
Finally managed to read the EDID data from the two 7" 1024x600 displays here and decoded them, both totally different.
Searching around it appears there are as many settings for the 1024x600 displays as there are displays... and 800x480 looks like a similar situation.
Sadly, as you suggest, there is no real "standard" at this resolution.
With that in mind, would you consider the following:
A "HDMI USER" mode / resolution, with the parameters input by the user, I imagine this would require 2 sets:
Mode 1 in monochrome with tiles
Mode 2,3 or 4 in color.
This would require the user to do the calculations for the clock frequency and divider / PLL ratios to suit, thankfully a lot of the porch and blanking information is available in the datasheets.
Whilst this would not be for the beginner, a database could be formed with setting data for the more common displays from Waveshare / Buydisplay etc.
This does of course assume that the above is even possible.
Regards,
Lyle.