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Comment by throwaway81523 | Hacker News Reader

Despite STM32 in the product name, this is a dual core Cortex-A35 SOC intended to run Linux, though he brings it up as bare metal. The STM32MP257F-EV1 dev board that he used costs $425 at Digikey. His thing is interfacing it to FPGA's. So this seems to be a hardware person's product. Most of us can probably use simpler stuff. The Pocketbeagle 2 looks interesting to me.

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> The STM32MP257F-EV1 dev board that he used costs $425 at Digikey

Most would start with the significantly cheaper Discovery Kit version.

With ST, the developer kit is usually only needed if you need every pin and function exposed because you’re developing your own board.

I think you mean "despite the STM32 in the product name, they're 64 bit compatible cores." Because STM8 was 8 bit (though I've never seen one in any design ever, I'm sure they're just before my time) and STM32 MCUs and MPUs were always 32-bit.

I'm worried they dug too deep a trench with the 32. Like how do much from Espressif is an ESP32 now despite them ranging from slower single core to faster dual core, now even with mmu, some with Wi-Fi some not...

What is in a name?

Or they could have just meant STM32 is normally synonymous with "typical slow single-core MCU" compared to multi-ghz Cortex SoCs that we see in higher-end devices that run Linux?

he*

only one person

Booooooooooo

"He or she" unless unambiguous, in that case.

Imagine being less character efficient just to be a bigot. Hope you stocked up on RAM for all that extra text

Singular they is a well attested pronoun in English.

If you don't know English very well I suggest not correcting other people.

STM32 processors have traditionally been M-series 32-bit ARM cores including M7. I don't know if there have been any exceptions before this. But A-series is application processors with MMU's, DRAM interfaces, etc.

STM8 is still a thing and they were popular cheap embedded boards before ESP32 took over. They were ok as a cheap alternative to Arduino-compatible AVR boards. I have a few of the boards around. They were around $1 each on Aliexpress and have 8K of flash and 1K of ram, which is enough to run interactive Forth, and there's an SDCC compiler target for them.

The MP1 is 7.5 years old now.

That's the thing, STM32s are jellybean devices that you can tenth-source from anywhere, including some guy cooking them up in his kitchen in Shenzhen. This thing is an STM32 in name only (SINO? STINO?).

Eh... that really depends on the part. Some common, old parts like STM32F103 are more or less second-sourcable; others like the STM32H7 series aren't.

Yeah, I was thinking specifically of the STM32F103 and its infinite, ah, informal second sources.

That's marketing. The iMac was a huge hit so Apple started releasing iEverything. Denny's had a hit with its "Grand Slam" breakfast now they have ten different "slams" on their menu,

There is STM32MP257F-DK for $103 (without PCIe).

> The Pocketbeagle 2 looks interesting to me.

If only it had 2GB+ RAM. Since it has 4 cores, even more RAM would be better.

And 1Gbit Ethernet is what I'm missing.

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