"RISC-V" CPU architecture

[FlyingDutch]

Hello everybody,

In last time featured few articles about new "Open hardware" CPU architecture called "RISC-V". It is sometimes depicted as an alternative to "ARM" CPUs.

Here is the link to the project site:

http://riscv.org/

I know that this CPU has generally less performance than ARM, but there are few interesting hardware projects base3d on "RISC-V" architecture.
There is also Linux for that hardware:

http://github.com/riscv/riscv-linux

And last time appeared few board with this CPU. Especially interesting for me is "C-SKY Linux Development Board". Here is link to project website:

**broken link removed**

This board is equiped with many peripherals and axtensions, and it cost on one of Chinese shops only 5.60 $ (US):

http://item.taobao.com/item.htm?id=556322544984

, or about 20$ on Aliexpress:

http://www.aliexpress.com/item/PK-OrangePi-NanoPi-Raspberry-Pie-C-SKY-Linux-Development-Board/32894249783.html?spm=2114.search0104.3.2.1e4b5416BEZwUG&ws_ab_test=searchweb0_0,searchweb201602_4_10065_10068_319_317_10696_5729413_10924_10084_453_454_10083_10618_10920_10921_10304_10307_10922_10820_10301_10821_537_536_5730515_10843_10059_10884_10887_100031_321_322_10103,searchweb201603_2,ppcSwitch_0&algo_expid=0306c80a-8fa2-4b18-a0c1-d59dc9469e47-0&algo_pvid=0306c80a-8fa2-4b18-a0c1-d59dc9469e47

Has anybody experience with this hardware and can share it with others?

Regards

 

[std_match]

The CPU on that board has a C-SKY architecture, not RISC-V.

 

[FlyingDutch]

The CPU on that board has a C-SKY architecture, not RISC-V.

Hello,

I read that C-Sky is derived from RISC-V (it is altered version of RISC-V). Because "RISC-V" is free hardware, anybody can alter this architecture and sell such altered CPUs.

But ....

frankly speaking I am a little confused and not quite sure if I am right :-?

See this links:

https://linuxgizmos.com/this-under-6-sbc-runs-linux-on-risc-v-based-c-sky-chip/

https://www.phoronix.com/scan.php?page=news_item&px=C-SKY-Approved-Last-Arch

https://www.eenewsanalog.com/news/report-china-forms-risc-v-consortium

Regards

 

[filip.amator]

Chinese firms sell electronics very cheap but they do not provide support and documentation on the sufficient level. It is good for doing a DIY but I would not use any hardware for serious commercial project.

 

[FlyingDutch]

Chinese firms sell electronics very cheap but they do not provide support and documentation on the sufficient level. It is good for doing a DIY but I would not use any hardware for serious commercial project.

Hello,

I was asking in context of amateur projects

Regards