SPARCs in Space: The Cobham UT700 Leon3FT Processor (opens in new tab)

(cpushack.com)

15 pointsbirbbarker2y ago6 comments

6 comments

4 comments · 1 top-level

nullc2y ago· 3 in thread

I wonder if there are commercially available fault tolerant RISC-V chips yet?

kramerger2y ago

The CPUs are designed by Graisler Research in Sweden, who have decades of experience in space electronics and probably have thousands of CPUs currently orbiting the earth.

And yes, they have RISC-V versions but I don't think they have been battle proven as much:

https://www.gaisler.com/index.php/products/processors/noel-v

tyingq2y ago

That appears to be a soft CPU...VHDL for an FPGA, rather than an actual CPU.

2 more replies

snvzz2y ago

I do not know about commercially available, but the ESA has long selected the RISC-V NOEL-V[0] to succeed LEON in their space endeavors.

0. http://microelectronics.esa.int/riscv/rvws2022/index.php

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