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Have not seen any RISC-V offering from the Chinese yet. I wonder if SiFive will have any competition.
by farseer 6y ago
Have not seen any RISC-V offering from the Chinese yet. I wonder if SiFive will have any competition.
- krasin 6y agoHere 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 agoLast 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).
- deleted 6y ago[deleted]
- FullyFunctional 6y agoPlease 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 agoThe 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 agoThis 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 agoYes, 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 agoFor 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...
- rwmj 6y agoAllWinner are doing a big run (50 million rumoured) of RISC-V chips through TSMC.
- jagger27 6y agoDo you have a source for this? I'd love to know what node they're using. I'm guessing no better than 12nm, but who knows?
- yjftsjthsd-h 6y agoAt some level... does it matter? The BCM2837 (used in the RPi 3), is 40nm if https://www.raspberrypi.org/forums/viewtopic.php?t=137991 https://www.raspberrypi.org/forums/viewtopic.php?t=137991 is to be believed; more advanced fabbing is good if you wanna go head-to-head with cutting edge ARM or even x86, but for a lot of stuff you don't need to be that good.
- megous 6y agoIt will not be anything high performance. http://www.semimedia.cc/?p=7803 http://www.semimedia.cc/?p=7803
- GoOnThenDoTell 6y agoWhich company designed the riscv cores in the soc?
- sitkack 6y agoHave you looked? Not seeing means you should probably turn on the light switch. You are in a dark room.
- pabs3 6y agoSounds like Alibaba might be working on something: https://www.nextplatform.com/2020/08/21/alibaba-on-the-bleeding-edge-of-risc-v-with-xt910/ https://www.nextplatform.com/2020/08/21/alibaba-on-the-bleed...
- adrian_b 6y agoAlibaba have presented their Xuantie910 RISC-V processor, one month ago at Hot Chips. It is by far the RISC-V CPU with the highest performance ever designed. Nevertheless, to reach that performance, they had to add a custom instruction set extension with indexed addressing modes, as a workaround for the greatest defect of the RISC-V ISA, its incomplete set of addressing modes.