3 ms·
SiFive X280 is an IP core, not an IC. The design itself isn't inherently radiation-hard, but there's nothing preventing it from being manufactured on a radiatio
by duskwuff 4y ago
SiFive X280 is an IP core, not an IC. The design itself isn't inherently radiation-hard, but there's nothing preventing it from being manufactured on a radiation-hard process.
- mmaunder 4y agoAnd yes, having more onboard processing will lead to more pre-processing capabilities for data before it's sent/received via precious and limited DSN bandwidth. Could also allow for a low quality preview and selective-send mode of operation.
- IshKebab 4y agoThere are definitely things you can change in the design to make it more radiation-proof. ECC memory for example, logic sanity checks etc.
- noselasd 4y agoThere certainly things you can do in the design to be radiation hardened, it's not just in the manufacturing. The LEON [1] processor, initally designed by ESA for space missions incorporates quite many countermeasures in its IP core. [1] https://en.wikipedia.org/wiki/LEON https://en.wikipedia.org/wiki/LEON
- skissane 4y ago> incorporates quite many countermeasures in its IP core How hard would it be for SiFive to take one of their existing designs, which lacks those countermeasures, and add them?
- kramerger 4y agoHard but not impossible. Maybe too expensive to make sense for SiFive? IIRC, all internal logic will require triple mode redundancy and all type of memory will need ECC plus scrubbing.