Re: DRAWS to Elecraft KX3

Frank Ivan

Thank you Annaliese.

I have been writing OS’s and device drivers for more years than I like to think about.

You have given me what I think I need and I won’t bug you. I will make anything I get going available in a GitHub repo.

Thanks and 73 Frank - K0FEI

On Oct 19, 2018, at 10:07 PM, Annaliese McDermond <nh6z@...> wrote:

On Oct 19, 2018, at 1:38 AM, Frank Ivan via Groups.Io <> wrote:
I am going to try to get a NanoPi-M4 to interface to the DRAWS and will post the result along with the cable to the KX3.
The UDRC driver expects to see a bcm2835 i2s device to set up the DAI links. You’ll need to write a new ASoC driver if the I2S device isn’t compatible with the bcm2835 one, which is pretty likely. The UDRC glue driver source is at:

You’ll also need to set up the device tree to link up the correct i2c device to the whole thing and cause it to load. See the UDRC’s device tree

You might also be able to hack up a device tree using the ASoC simple_card driver to glue them both together instead. See the docs at

Note that while sometimes you might get me to opine vaguely about possibilities and where to look, neither I nor NWDR support using the DRAWS/UDRC on anything but a RPi.

Frank K0FEI
Annaliese McDermond (NH6Z)
Xenotropic Systems

Join to automatically receive all group messages.