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ACCount39 • today at 12:01 AM • 3 replies • view on HN

The truth is that those are just niche items. Having a need for both a Linux-grade CPU and a real time MCU-like core is not that common. It tends to show up in projects too advanced for most to attempt.


Replies

azzentys • today at 12:05 AM

That's untrue. Almost all the products I worked with in my last company had such architecture - which we leveraged (this was Ag industry). It's very easy to work as they have shared memory to talk to each other.

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Aurornis • today at 1:58 AM

These parts aren’t designed to be your next Raspberry Pi that mostly gets tossed in a drawer.

Engineers actually use these in real products and embedded systems.

The combination of Linux and microcontrollers isn’t new. It’s a very valuable and common structure.

The comments here trying to dismiss it or call it uncommon are bizarre.

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kragen • today at 8:28 AM

Virtually all big computers (mainframes, workstations, rackmount servers, PCs, laptops, tablets, cellphones, and e-readers) use this architecture: the Linux-grade CPU doesn't directly drive things like the USB port, the HDMI signal, the SSD's flash translation layer, or the hard disk head movements. Instead, real-time MCU-like cores do it.

The only difference is that a lot of them are on separate chips.

Probably programming a computer is too advanced for most to attempt, so that doesn't seem like a legitimate criticism.