4 ms·

Here you go: M5Stack tiny computer with a camera, LCD and RISC-V AI-capable Chinese chip (Kendryte K210). Available on Digikey for $26.50: https://www.digikey.c

by krasin 6y ago

Here you go: M5Stack tiny computer with a camera, LCD and RISC-V AI-capable Chinese chip (Kendryte K210). Available on Digikey for $26.50: https://www.digikey.com/products/en?keywords=K027&v=2221 https://www.digikey.com/products/en?keywords=K027&v=2221

mhh__ 6y ago
Last time I looked at it (few months ago) the K210 had absolutely awful documentation (datasheet was basically just a pinout) in English and Chinese. Not awful but for a high margin product I'd just use a US arm chip (e.g. LPCxx).
- krasin 6y ago
  K210 has a decent AI accelerator (0.8 TFlops by their specs) that can run TFLite models at 300 mW). LCPxx are not even remotely capable of that.
  - mhh__ 6y ago
    True but I was looking at just for being RISC-V rather than the coprocessor
deleted 6y ago
[deleted]
FullyFunctional 6y ago
Please note that it has a non-working MMU and is limited to 8 MB of DRAM. This is not the SBC you were looking for.
- brucehoult 6y ago
  The MMU works fine, it's just poorly-documented and turns out to implement the incompatible draft-1.9.1 spec not the ratified and standard-going-forward 1.10 spec.
m0zg 6y ago
This is not Linux-capable though. The choices are FreeRTOS and bare metal. The chip is pretty unbelievable at that price though. You get a lot of functionality for $9. And it works - I have it on my desk.
- krasin 6y ago
  Yes, it's the beauty of RISC-V: eventually, it's going to cover all the niches. From RFID energy-gathering chips up to desktop / datacenter CPUs. Right now, its use is still very fragmentary, but Kendryte K210 chip shows that Chinese chip designers already got some real experience with RISC-V, and it's safe to bet it will be more chips with RISC-V coming from China every year.
- jack12 6y ago
  For some value of "capable": https://github.com/torvalds/linux/blob/master/arch/riscv/configs/nommu_k210_defconfig https://github.com/torvalds/linux/blob/master/arch/riscv/con...

by krasin 6y ago

mhh__ 6y ago

Last time I looked at it (few months ago) the K210 had absolutely awful documentation (datasheet was basically just a pinout) in English and Chinese. Not awful but for a high margin product I'd just use a US arm chip (e.g. LPCxx).

krasin 6y ago
K210 has a decent AI accelerator (0.8 TFlops by their specs) that can run TFLite models at 300 mW). LCPxx are not even remotely capable of that.
- mhh__ 6y ago
  True but I was looking at just for being RISC-V rather than the coprocessor

deleted 6y ago

[deleted]

FullyFunctional 6y ago

Please note that it has a non-working MMU and is limited to 8 MB of DRAM. This is not the SBC you were looking for.

brucehoult 6y ago
The MMU works fine, it's just poorly-documented and turns out to implement the incompatible draft-1.9.1 spec not the ratified and standard-going-forward 1.10 spec.

m0zg 6y ago

This is not Linux-capable though. The choices are FreeRTOS and bare metal. The chip is pretty unbelievable at that price though. You get a lot of functionality for $9. And it works - I have it on my desk.

krasin 6y ago
Yes, it's the beauty of RISC-V: eventually, it's going to cover all the niches. From RFID energy-gathering chips up to desktop / datacenter CPUs. Right now, its use is still very fragmentary, but Kendryte K210 chip shows that Chinese chip designers already got some real experience with RISC-V, and it's safe to bet it will be more chips with RISC-V coming from China every year.
jack12 6y ago
For some value of "capable": https://github.com/torvalds/linux/blob/master/arch/riscv/configs/nommu_k210_defconfig https://github.com/torvalds/linux/blob/master/arch/riscv/con...