| Title |
Development of Error-Corrector Control Algorithm for Automatic Error Detection and Correction on Space Memory Modules |
| Authors |
곽성우(Kwak, Seong-Woo) ; 양정민(Yang, Jung-Min) |
| DOI |
https://doi.org/10.5370/KIEE.2011.60.5.1036 |
| Keywords |
Single event upset (SEU) ; Memory scrub ; Space electronics ; Error detection and correction (EDAC) |
| Abstract |
This paper presents an algorithm that conducts automatic memory scrubbing operated by dedicated hardwares. The proposed algorithm is designed so that it can scrub entire memory in a given scrub period, while minimally affecting the execution of flight softwares. The scrub controller is constructed in a form of state machines, which have two execution modes - normal mode and burst mode. The deadline event generator and period tick generator are designed in a separate way to support the behavior of the scrub controller. The proposed controller is implemented in VHDL code to validate its applicability. A simple version of the controller is also applied to mass memory modules used in STSAT-3. |