ARM technology is seeing increased momentum in the space industry, with NASA recently selecting the ARM Cortex-A53 processor for suppliers to build next-generation space electronics around. But the new experimental project – which is supported by Air Force Research Laboratory and NASA - marks the first time an ARM-based radiation-hardened microcontroller, designed specifically to withstand extreme conditions, has been deployed in space.
RHEME: Monitoring electronic memories in space
RHEME (the Radiation Hardened Electronic Memory Experiment) is an important step in enabling next-generation space computing by tackling the issues faced in the incredibly challenging space environment, drawing on VORAGO’s expertise in radiation hardened chip design.
In space, electronic memories are exposed to high-energy protons and radiation particles and when these particles strike a memory or other microcircuit they can alter the information stored in a memory bit. In some cases, multiple bits of memory can be changed. The corruption of this information can cause the electronics to malfunction and even jeopardize the mission. This is clearly a serious problem.
Aiming to address this issue, RHEME will monitor the effect of particle strikes on memory over the course of a year. The experiment is monitored and controlled by a VORAGO ARM Cortex-M0 based microcontroller which uses the VORAGO HARDSIL® process, patented and proven to harden devices for radiation and extreme temperature environments. The results will enable the design and building of memories that can power-efficiently detect and correct errors and eliminate them in spacecraft electronics.