(Updated Install Guide) DragonOS Pi64 35.1

[alphafox02]

Specific to DragonOS Pi64 35.1 @ https://sourceforge.net/projects/dragonos-pi64/files/

1. Clone the CaribouLite repository from GitHub:

   git clone https://github.com/cariboulabs/cariboulite.git
   cd cariboulite

2. Navigate to the SMI stream driver file:

   nano driver/smi_stream_dev.c

3. Inside the editor, use Ctrl+W to search for "Create sysfs". Look for the line below it:

   smi_stream_class = class_create(THIS_MODULE, DEVICE_NAME);

   Modify it to:

   smi_stream_class = class_create(DEVICE_NAME);

   Save the changes by pressing Ctrl+O, then Enter, and exit the editor by pressing Ctrl+X.

4. Run the installation script:

   ./install.sh

5. Modify the /boot/firmware/config.txt file:

   sudo nano /boot/firmware/config.txt

   Ensure the following lines are present:

   dtparam=audio=on
   #dtparam=i2c_arm=on
   #dtparam=spi=on
   dtparam=i2c_vc=on
   dtoverlay=spi1-3cs
   # Comment out the following line if the edges of the desktop appear outside
   # the edges of your display

6. Edit the /etc/rc.local file:

   sudo nano /etc/rc.local

   Add the following line right below fi and above exit 0:

   sudo chmod g+rw /dev/gpiomem

7. Reboot your system and enjoy using CaribouLite.

[alphafox02]

If there is a desire to use the Caribou Lite with SDRAngel on the Pi, make sure to start sdrangel from the command line sdrangel --soapy

[ki6uve]

alphafox02: This version of Cariboulite software doesn't seem to have dump1090 app at all. Other versions had a /cpp folder under the /examples directory. Did you install dump1090 manually from another github source? Thanks!!

[alphafox02]

It’s still there but under soapy folder now

https://github.com/cariboulabs/cariboulite/tree/main/examples/adsb_soapy

[ki6uve]

Seemed to compile fine, but still throwing errors: IO_UTILS_SPI io_utils_spi_add_chip@io_utils_spi.c:434 spi_init function failed with code -1, (SPI_ERR_OPEN)

CARIBOULITE Radio cariboulite_radio_activate_channel@cariboulite_radio.c:1099 PLL didn't lock

CaribouLite: Signal [11] received from pid=[-1446313462] Signal [11] caught, with the following information: signal errno = 0 signal process pid = -1446313462 signal process uid = 65535 signal status = 0 signal errno / SIGSEGV / the process access a valid region of memory in an in valid way - violated memory access permissions SIGSEGV: memory access violation

[alphafox02]

I don’t get why it runs for me, but not for you. I don’t imagine sudo would help.

[alphafox02]

But I do get a similar failure on Gqrx.

[ki6uve]

So weird. Did you change any other permissions for the default ubuntu/dragon login? My ubuntu login is always asking for sudo password.

[ki6uve]

I do have a fan hat in between the Pi and the Cariboulite. I wonder if that if F'ing it up. I'll try removing that.

[alphafox02]

You mean the login that comes up at each boot? That’s just the ubutnu user password it’s asking for. You can disable that in gdm3 if you want an auto login. I would try and remove that fan for sure and see what happens then.

I’m also curious, are you looking for the dump1090 app to do much more then display results? It seems like all of what you’d expect out of the normal 1090 is missing.

[ki6uve]

Definitely something didn't work during my install. Even SoapySDRUtil --find is failing:

[alphafox02]

Can you maybe share a picture of your Caribou? Perhaps it’s something specific to the model you have vs mine. It seems soapy finds it (ignore sdrplay comments) but I don’t get all that output you get before and after it finds the device.

[ki6uve]

On Mar 19, 2024, at 10:15 AM, alphafox02 @.***> wrote: Can you maybe share a picture of your Caribou? Perhaps it’s something specific to the model you have vs mine. It seems soapy finds it (ignore sdrplay comments) but I don’t get all that output you get before and after it finds the device.

—Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you commented.Message ID: @.***>

[alphafox02]

Add a glance it looks just like mine I think. I don’t know what would be the difference maybe something during the manufacturing or loading of the hat?

[ImDroided]

This guide worked for me but I was warned about dtoverlay=spi1-3cs not being in the config.txt so I added it anyways. I wonder if that line may help @ki6uve. not sure the difference between dtparam and dtoverlay but it seems like we already added this flag above.

[ki6uve]

Okay, finally got it working. Damn typo in the rc.local line. Now seem to just be sitting on that "starting stream loop". How long did it take before adsb data started being detected?

[alphafox02]

It just sits and runs but I’ve never seen it get anything. However, I did get adsb results in SDRAngel with it.

I better go back and look at my guide above, sounds like I might have missed something in the config.txt.

[alphafox02]

This guide worked for me but I was warned about dtoverlay=spi1-3cs not being in the config.txt so I added it anyways. I wonder if that line may help @ki6uve. not sure the difference between dtparam and dtoverlay but it seems like we already added this flag above.

Thanks for catching that! I went back and fixed it.