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Run Erlang/Elixir on Microcontrollers and Embedded Linux

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206 points weatherlight | 3 comments | 02 Sep 25 08:40 UTC | HN request time: 0.403s | source
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rkangel ◴[02 Sep 25 11:50 UTC] No.45101850[source]▶
> MCU-class footprint (fits in 16 MB RAM)

That is absolutely not an MCU class footprint. Anything with an "M" when talking about memory isn't really an MCU. For evidence I cite the ST page on all their micros: https://www.st.com/en/microcontrollers-microprocessors/stm32...

Only the very very high performance ones are >1MB of RAM.

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1. PinguTS ◴[02 Sep 25 13:34 UTC] No.45102910[source]▶
I see their board uses a daughter board from Phytec, a German company too. This is based on very high performance NXP MCU, the i.MX 6UL, with additional external DDR RAM.
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2. magicalhippo ◴[02 Sep 25 14:23 UTC] No.45103529[source]▶
NPX calls[1] it an application processor, and is based on a Cortex-A7, not a Cortex-M series microcontroller processor.

That said these nomenclatures are a bit fuzzy these days.

[1]: https://www.nxp.com/products/i.MX6UL

3. LeifCarrotson ◴[02 Sep 25 14:43 UTC] No.45103769[source]▶
It's a $212 SBC. They've got more L2 cache than most microcontrollers have Flash memory.The fact that it's got an L2 cache at all, much less external LPDDR3 DRAM, is a bit ridiculous. In most parameters - cost, RAM, frequency, storage, power consumption - it's approximately 2 orders of magnitude beyond the specifications of a normal microcontroller.