Comment by lukeh

Re: yours, that is a _long_ boot time. Boot time on mine isn't great, but I think I'm just going to have to accept that as an artefact of U-Boot, Linux, and an Ethernet switch chip that takes some time to initialise.

Anyway, re: my widget: it's a personal monitor mixer [1], something one might use in the studio or live, not dissimilar to existing products in the market, except: it supports up to 64 channels of Dante or AVB natively, it has a super nice (HiDPI) UI, and absolutely everything is remote controllable using OCA (AES70) or OSC. I even have a MCP bridge so you can let Claude manage it ;) [2]

The hardware is a custom board that hosts a CM4 SOM (for the control plane and UI), a Brooklyn 3 SOM (Dante), and an XMOS which runs the mixer firmware and AVB stack. There are also some nice AKM DACs, and a Marvell Ethernet switch chip that connects the SOMs and XMOS to two external Ethernet ports.

The CM4 runs Yocto which manages the switch in DSA mode (i.e. hardware offloaded bridge), runs the gPTP and SRP stacks for AVB, the OCA daemon, and the UI (which is just a regular OCA client). SSH is presently enabled but there's not a lot to do once you're in there. Working on secure boot at the moment with U-Boot and dm-verity.

[1] https://forums.swift.org/t/an-embedded-audio-product-built-w... (note, older prototype)

[2] https://www.linkedin.com/posts/lukehowardmusic_heres-a-long-...