Research and Optimization of Booting Scheme Based on SEP5010 Chip

System booting is an important aspect in real-time embedded system,of which booting speed is one of the most important indexes.As to the realization and optimization methods of the system booting scheme based on SEP5010 chip independently developed by Southeast University,this research mainly considers how to increase the booting speed and shorten the booting time.Through the research of configuring optimal frequency division ratio,opening I-cache,selecting downloading protocol and designing several booting schemes with different functions,the booting performance can be obviously increased.the optimization described above in the experiment which on real platform could improve the average booting time by 84.7%,which satisfies the demand of fast booting in embedded system.Presently,the booting scheme has been applied to a handheld navigation device.