Guru
Joined: 11/12/2012
Location: United KingdomPosts: 11026
| Posted: 02:53pm 20 Aug 2024 |
Progress
NB: as discussed elsewhere GP12 to GP19 are not available as these are dedicated to the HSTX peripheral and can't be changed. CPU speed is fixed at 252MHz. The HSTX peripheral can only run at power-of-2 multiples of the CPU speed.
To get this to work I've disabled tiles and other small bits and still haven't enabled the extra pins on the 80-pin chip or implemented the other graphics modes yet so still a fair bit to do.
The underlying graphics will be 640x480x15bits running RGB555. This keeps the bus bandwidth to half of RGB888 and still allows 32 true grey scale levels if that is the sort of thing you want
Running on my little HDMI adapter board GBP20 for 5 fully built from JLC
Gerber_PCB1_2024-08-20.zip
BOM_Board1_PCB1_2024-08-20.zip
Image quality is excellent, here editing in mode 2
Edited 2024-08-21 01:03 by matherp