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thomasjblast Friday at 4:15 PM3 repliesview on HN

I think its another symptom of the problem of there not being a clear way to get from your smart brainbox which you run a proper operating system on and do heavy computation on to driving lots of motors or similar. There are options, but there's not one that everyone defaults to and you can get good information on.


Replies

ACCount37yesterday at 1:15 PM

I've seen multiple SoCs from China that integrate a high performance Linux core and a smaller MCU-like RTOS core into the same die. SG2000 being one example.

Pretty clear to me that they're aiming at drones, 3D printers and robots with that.

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HeyLaughingBoyyesterday at 5:22 PM

The reason there's no obvious default is probably because of the differing price points and complexity of the products that are being built. e.g., from some of the products that I've worked on.

- UI/database on desktop with multiple real-time processors connected via serial/Ethernet

- UI/db on Linux SoM with embedded processor connected through serial

- UI/db on Linux SoM and the SoM has an embedded ARM processor connected via shared memory

- UI on one core of an ESP32 with real time control on a separate core. This isn't something I've done, but many 3D printers and other low-cost machines are using this architecture right now.

exasperaitedyesterday at 12:14 PM

Right — 3D printers, robotics, etc.; some sort of isolation of the microcontroller stage from the monitoring/apps stage.