ARM Processors in Space 🛰️ (May's OSSAT Talk)

In May’s Open Source Satellite session we spoke to KISPE's Paul Madle (Senior Software Engineer) and Jamie Bayley (Software Engineer) about ARM Processors in Space.
Links:
Open Source Satellite Programme:
www.opensource...
/ opensourcesatellite
/ satelliteopen
#OpenSource #SpaceSustainability #UKSpace #SpaceDebris #ARMprocessor #processor

[@oleksandrliubimov1197]

Samv71 has the RadHard version. So u have a chance to replace it with the tough one whenever u need to.

[@paulmadle2748]

Absolutely, SAMV71 does have Rad Tolerant and Rad Hard cousins... Awesome stuff: beware that the peripherals (e.g. UART) change from one cousin to the next... So your nice UART driver for SAMV71 will not work on e.g. SAMRH71 :(

[@oleksandrliubimov1197]

Ahh, you covered that later in the podcast. However, the problem of HAL/OSAL is super minor in comparison to the application software. So I think you are a little over inflating the cross-chip issue. Secondly, how does the idea of opensat and RT version of SAMV71 for 3500usd/pcs fits together? 😊

[@paulmadle2748]

On OSSAT, we are going to be designing for Low Earth Orbit using commercial technologies. We plan to create a variant of OSSAT that gets it into harsher orbits/environments. For this, Rad Tolerant/Rad Hard variants will be used... This is fairly far down the roadmap. As for the cross-chip issues, its worth saying that there is a lot more uniformity of peripherals with the STM32 family vs SAM families. In our experience, the different peripherals can cause issues not only to driver level but also further into the application layer (e.g. if you rely upon specific nuances of DMA/interrupts etc).