I'm puzzled by Espressif's naming here. We had the ESP32-S3, so "S31" sounds like "S3, variant 1," but this part doesn't really look like a simple S3 variant. And then there's an ESP32-E22, but no E21 or even a plain E2 anywhere.
They claim that the chip has an "MMU". But unfortunately this doesn't seem to be a true RISC-V MMU (according to the Sv32 specification) integrated into the CPU core itself, but just a peripheral designed for memory mapped SPI flash and PSRAM. So as far as I understand there is no true process isolation with page faults and dynamic paging.
by urba_
1 subcomments
I don’t trust Espressif’s releases, I am still waiting for ESP32-P4 to hit distributors.
It is now more than 2 years and 3rd chip revision
by moepstar
5 subcomments
I believe this is the first ESP to gain Ethernet capability?
I totally wish that a board would come with PoE…
Because as it is right now, powering a fleet of those with USB power supplies is annoying as fsck…
by volemo
0 subcomment
How do Espressif’s RISC-V cores compare to existing ARM or RISC-V options in terms of power efficiency (computational power / electrical power)?
by ricardobeat
0 subcomment
I hope this one has multiple radios so you can actually use BT/Wifi/Thread simultaneously.
by MrBuddyCasino
0 subcomment
> high-speed 250 MHz 8-bit DDR PSRAM with concurrent flash and PSRAM access
This is perhaps lost in the noise but IMO a large deal. PSRAM starting to get serious bandwidth.
by amelius
1 subcomments
Does it run Linux?
by bestouff
0 subcomment
Is there something that match those elsewhere ?
by wosined
2 subcomments
The ESP32 boards I own have bad support and are a bit of a hit and miss. (arduino nano esp32) Did this get better? Or is the support still messy?
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