Research and Development of Experiment Platform for Digital Walkie-talkie

A digital walkie-talkie scheme using CP4FSK modulation based on ARM 9 and ADF 7021 processors is designed.Board support package is developed,consisting of boot loader,OEM adaption layer and peripheral hardware drivers.Windows Embedded CE operating system is transplanted.Bi-serial interface and related drivers between modulation system and embedded processor are developed.At last,the hardware system of the experiment platform is completed and tested.