[CSC Armbian for RK3318/RK3328 TV box boards]

On 11/23/2021 at 2:11 PM, Huafu said:

I finally got some time to come back on my X88PRO 10 boards. The first one had wrong RAM and ROM size, the seller sent me a new one which appears (looking at the onboard chips) to have the real RAM/ROM. (first board was 2G RAM/32G ROM, 2nd is 4G ram/64G ROM).

 

Any file attached to this post is related to the second board, but both are called X88PRO 10.

 

I've tried your new image Armbian 21.11 - Debian Bullseye desktop [xfce] - mainline kernel 5.15.2 on my old board (the one with only 2G of RAM), but running rk3318-config and rebooting keeps telling me that it'll switch to another bus.

Then I've tried the hirsute image and that one did work after switching to the other bus and rebooting. One thing tho, I can't figure out how to enable/disable overscan. Various options tested (disable_overscan=1 or 0, disp_mode=, ... didn't change anything). In brief, something like 20 pixels are out of the screen on each side.

 

Then I've switched to the new board (the 4G RAM one). Using multitool (even before the first boot without sdcard), I've done a backup and I've extracted the dtb from each partition (not only the first one had some dtb, but also the 4th, 6th and 8th partitions had some). I then used dtc tool to get the dts out of each file which I attached here if it can be useful for anyone. All pictures, dtb, kernels and dts can be found here (as well as the original eMMC image).

 

Now comes the failing part: I was expecting the board to just be the same as the other one (the 2G one) with just augmented RAM and ROM, and once my backup has been created, I've burn to flash the Armbian 21.11 - Debian Bullseye desktop [xfce] - mainline kernel 5.15.2 image directly without testing it . Removed power, sdcard, rebooted, ....and nothing. No signal on HDMI even after 10 minutes (I was hoping it was just the partition resize taking a long time).

I've tried to boot again from sdcard but nothing more was happening. I then tried to boot with male/male USB while keeping the pin inside the jack plug, but on both USB ports I had no output in dmesg of my laptop. Tho the red led turns on as well as the light in the coaxial audio plug.

 

At that point I don't know what else I can do, as you can see on the picture without the heatsink, the pins of the eMMC aren't accessible at all so I cannot try the screwdriver trick. Any idea on what I can try/do?

 

Thanks in advance for any help even if it's a "drop it to the bin" message , and lemme know if you want me to send anything else from those boards.

p1-01_dtbdump_rockchip,rk3328-evb.dts p1-02_dtbdump_rockchip,rk3328-evb.dts p1-03_dtbdump_rockchip,rk3328-evb.dts p1-04_dtbdump_rockchip,rk3328-evb.dts p4-01_dtbdump_fragment@0.dts p6-01_dtbdump_rockchip,rk3328-box-liantong-avb.dts p6-02_dtbdump_rockchip,rk3328-box-liantong-avb.dts p6-03_dtbdump_rockchip,rk3328-box-liantong-avb.dts p8-01_dtbdump_rockchip,rk3328-box-liantong-avb.dts p8-02_dtbdump_fragment@0.dts p8-03_dtbdump_rockchip,rk3328-box-liantong-avb.dts p8-04_dtbdump_rockchip,rk3328-box-liantong-avb.dts

 

 

Update:

thanks to @enigmasphinx's post, I looked right under the board where the eMMC is in the other side, and I found not 2 but 3 pins (see 2 new attached pics)! I will try to connect some of them, I hope a wrong combination won't do some more damage 

 

 

Maskrom mode: shortcircuit between points B and C. This works perfect for My X88Pro 10.

[AV out in MXQpro with RK3228A and Focal Legacy Minimal]

Hi @jock

In fact, audio output is ok for composite with anyone:

Option 1: In /etc/asound.conf:

defaults.pcm.card 2

defaults.ctl.card 2

Option 2: In MPV with option: --audio-device=alsa/default:CARD=ANALOG

But I can't get the video output via composite, it only works via HDMI.

Thanks

 

 

 

 

[AV out in MXQpro with RK3228A and Focal Legacy Minimal]

 

I managed to install Armbian Focal Legacy Minimal on my MXQPro-RK3228A without any problem, but only the HDMI video output works. Has anyone managed to use the analog output? My installation does not have u-boot. The boot configurations are in armbianEnv.txt.