Abstract: The capacity of on board maintenance is of great significance for the normal operation of on board software. With the wide application of DSP in the field of Space, the improvement of on orbit maintenance methods for DSP platform has become an important research issue. A new method based on iterative link is designed, which can realize the automatic link of injection code, the automatic allocation of segment space, and the automatic extraction of injection code On C6000 DSP platform. It can effectively improve the on board maintenance ability of spacecraft software based on DSP, and it has good engineering application value.

Key words: DSP platform, on board software, iterative link, on board maintenance