说明：  基于MSP430单片机的CC1100通讯程序，用430单片机的普通IO口模拟SPI通信，对CC1100进行控制，实现两个CC1100之间的通信。
(CC1100 MSP430 microcontroller-based communications program, with 430 general IO port analog microcontroller SPI communication, the CC1100 control, to achieve communication between the two CC1100.)