Abstract: The TinyOS system has received much attention as a wireless sensor network operation system for its syntactic model, event driven architecture and easy programming environment, And the CC2430 chip is widely used for wireless sensor network nodes with high performance, low price and low power cos>n But the CC2430 chip is not supported by hinyOS system. After an analysis of tinyOS principle, the programming language NesC and its compiling process,the transplantation was performed including porting NesC and CC2430’s components like Timer, Uart, ADC etc, and its application was tested. The test result shows that the TinyOS system can run on the CC2430 chip, the components work well,and the transplantation is successful. Based on the transplantation, two extended applications were proposed and realized including an improved priority-based scheduling mechanism and the formation of star network.

Key words: Wireless sensor network, TinyOS, CC2430, Star network