First Start Support

[schulzalex]

Here we help you to get OpenX32 bootet on your X32!

[schulzalex]

In reply to:

OpenX32 - Development News

I have tried the pre-compled files. But when booking, my display of my x32 compact is not initialized correctly. I like the project. Maybe i can give information about the display used in my x32 compact.

Hey @Robert13

can you share a “screenshot” of your X32 Compact while booting?

I have a X32 Compact and will test the boot right now.

[schulzalex]

It should look like this:

[Robert13]

I made a video of my x32 compact booting. I hope it will help this great project.

https://youtube.com/shorts/TKKIt6Q0qvg

[schulzalex]

very interessting!

I have some ideas… maybe on the weekend I can give you a special boot file to try.

[Robert13]

Maybe i can open the x32 and check the type of lcd. Do you need anything else? I can make the rs232 port, so i can see some logging.

[schulzalex]

you could connect a serial port via Midi to get to the linux console.

MIDI-Port as UART/Serial Port

OpenX32 opens a serial console on the MIDI-Ports, to login into Linux without networking. The i.MX25 is not sending RS232 but TTL-UART, so you need a TTL-UART-to-USB-Adapter (like this https://www.waveshare.com/wiki/CP2102_USB_UART_Board_(micro)) Simple circuit: [image] Hacked together on a small breadboard (wire colors do not match): [IMG_20250803_191933]

From there you could read out the sd card, there are some lcd parameters stored.

Or you read out the internal sd-card directly, but this requires a major disassembly.

But be cafefull and don’t destroy your mixer. Its the best you wait until I build the special boot file this weekend.

[schulzalex]

As we know from the original DCP-Loader, there should be no different LCDs types on the X32 series. Its likely just a minor adjustment in the kernel DTS file.

[petr]

@schulzalex

Or you read out the internal sd-card directly, but this requires a major disassembly

Probably some clever combination of dd and hexdump might be sufficient. I’ll try to look at it how to best do this…

[schulzalex]

The interessting part is within the first couple 1000 Bytes, at ~ 0x400

There you can see the model, mac-address, serial, lcd parameters, …..

[schulzalex]

In the Reference Manual of the i.MX25 CPU I found the registers where the LCD-Parameters are written to in the bootloader stage:

I try to verify that a bit more….

[schulzalex]

My X32 Compact (lattice FPGA → serial number starts with 24…) has the following LCD-Parameters on the SD-Card at Offset 0x23E:

LCD=E0012003,8100EAC6,2BD00000,17150004,128

[schulzalex]

Please try our special build with new LCD Parameters:

Release Development Build 20260225 - New LCD Parameters ·...

[Robert13]

I have tried the new filem but with no success.

https://youtube.com/shorts/Vc4uYQbJBkY

My SN starts with S1400. That has got the old DSPs

[schulzalex]

Oh, that’s sad It seems Behringer used other displays, at least in 2014.

So (I guess) we need your LCD-Parameters from SD-Card and the display model.

[schulzalex]

@Robert13

That has got the old DSPs

The DSPs stayed the same until today. The FPGA has changed from Xilinx to Lattice.

[Robert13]

I have sent you a DM with my SD-card image

[Robert13]

LCD=E0012003,8100EAC6,2BD00000,17150004,128
The same as yours