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Are there any bigger RISC-V boards around yet? I'd love to goof around making a toy RISC-V operating system, but those ESP32C3s look a bit gutless (400kb of RAM
by josephg 5y ago
Are there any bigger RISC-V boards around yet? I'd love to goof around making a toy RISC-V operating system, but those ESP32C3s look a bit gutless (400kb of RAM? Oof.).
Ideally I'd like something specced closer to a raspberry pi.
- elcritch 5y agoWhat 400kb of RAM on an MCU?! That's a huge amount for an MCU. Arduino's started out with 2kB of SRAM. Linux also requires a MMU to run, which most's MCU's don't have.
- josephg 5y agoThanks; but I don’t want an MCU. I don’t even know what an MCU is. Arduino style devices aren’t interesting to me. I want something I can run Linux, like a raspberry pi but RISC-V. I know there were some bigger development boards out there for $600+ a few years back. Is there anything in the pipes which is smaller, for hobbyist messing around?
- goosedragons 5y agoThere is at least one now called the Sipeed Nezha, costs about $115 on Aliexpress with 1GB RAM. Seems like it's similar to an older RPi.
- josephg 5y agoOh thanks for pointing me in the right direction. It looks like they're now shipping $20 development boards with their new chips in the Sipeed LicheeRV. 512MB of ram and linux support: https://www.aliexpress.com/item/1005003594875290.html https://www.aliexpress.com/item/1005003594875290.html
- colejohnson66 5y agoThe HiFive Unmatched[0] from SiFive is a beast of a dev board, but with a price to match ($665 from Mouser). For a smaller Arduino-style board, the HiFive1 Rev B[1] exists as well, but it's more an MCU than CPU. [0]: https://www.sifive.com/boards/hifive-unmatched https://www.sifive.com/boards/hifive-unmatched [1]: https://www.sifive.com/boards/hifive1-rev-b https://www.sifive.com/boards/hifive1-rev-b