The Technology of High-Speed Data Transmission Based on Dual-Port RAM in Token Arbitration Method

For the key problem of high-speed reliable data transmission between microprocessors in the airborne flight control system of double CPU remote model helicopter,this paper devises both the software and the hardware of dual-port RAM data sharing system,and realizes the two-way data communication between DSP and single chip processor. Test results show that the dual-port RAM system can satisfy the need of high-speed reliable data communication in the airborne flight control system with high data transfer efficiency. It has laid the foundation for the development of follow-up airborne flight control system,and is a good reference to data transmission in other multi CPU system.