Does someone know about what SPARC processors they are talking about? I thought (at least for long-range missions) RAD-hardened PowerPC processors where the way to go.
The linked material in the answer is also higly interesting, including details about the RAD-hardening. As the decision was made in 1991 to use the SPARC architecture, it makes sense that they continued the development of their architecture. It is also good to see that there seems to be VHDL code available to tinker with the core in FPGAs. Thank you for the link :)
The ERC32 + LEON (SPARCv7/8) range of rad hard microprocessors developed under contract from ESA. Non fault tolerant versions of LEON are available as open source VHDL. See www.gaisler.com.
Radhard PowerPC are thing of the past I think. No development since the BAE RAD750?
