The upgraded role of cubesats, fueled by technological advances in the aerospace industry, that lower launch costs, has opened access to space for a wider audience. Space is a harsh environment for microelectronics. Radiation induced Single Event Upsets can trigger bit flips in memory that could have catastrophic consequences rendering a cubesat useless. Current state of fault tolerance is to either use Rad-Hard electronics that their cost makes it suitable only for high profile missions or the use of Commercial off-the-shelf electronics that offer little protection.

My proposal is to modify the lowRISC SoC, employing the Core Lock Step fault tolerant technique in minion cores by integrating a CLS assist unit, in order to be suitable for use in a cubesat mission.





  • Alex Bradbury