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.
| Original language | English |
|---|---|
| Pages (from-to) | 1036-1042 |
| Number of pages | 7 |
| Journal | Transactions of the Korean Institute of Electrical Engineers |
| Volume | 60 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2011 |
Keywords
- Error detection and correction (edac)
- Memory scrub
- Single event upset (seu)
- Space electronics