Freeplay CM4

[smoscar01]

Weird update:

I tried manually running the different options I had in the FreeplayILI9341 directory and I noticed all of them would crash with a DMA colllision error except for the `fbcpZeroNoDMA` option. Even though this version wouldn't crash immediately, I still wouldn't see anything on the screen.

A while ago I compiled my own version to be able to play N64 games that randomly had DMA collisions as well (https://forum.freeplaytech.com/showthread.php?tid=5096). Using this version gave me an image on the screen but it was very buggy. It will show artifacts, invert colors and sometimes it just goes back to not showing anything on the screen.

This is what I saw in the prompt while running the custom version (until closing it with ctrl+c):

Code:

pi@retropie:~ $ sudo ./fbcpFilledN64
bcm_host_get_peripheral_address: 0xfe000000, bcm_host_get_peripheral_size: 25165824, bcm_host_get_sdram_address: 0xc0000000
BCM core speed: current: 266666666hz, max turbo: 500000000hz. SPI CDIV: 6, SPI max frequency: 83333333hz
Initializing display
Resetting display at reset GPIO pin 27
Creating SPI task thread
InitSPI done
Relevant source display area size with overscan cropped away: 1024x768.
Source GPU display is 1024x768. Output SPI display is 320x240 with a drawable area of 320x240. Applying scaling factor horiz=0.31x & vert=0.31x, xOffset: 0, yOffset: 0, scaledWidth: 320, scaledHeight: 240
Creating dispmanX resource of size 320x240 (aspect ratio=1.333333).
GPU grab rectangle is offset x=0,y=0, size w=320xh=240, aspect ratio=1.333333
All initialized, now running main loop...
^CSignal SIGINT(2) received, quitting
Quit.

Could this be something fixable by reducing the speed in the dtoverlay?

Can DMA be configured/disabled through freeplayfbcp.cfg? or would I need to recompile all of them?