A novel data communication scheme used for high speed DSP Link-Port

摘要

Link-Port is a kind of communication data port on TigerSHARC series of high speed DSP, which can communicate with peripherals at a high speed. DSP, FPGA and high speed ADC need concentrated data transmission in Software Radio system architecture, it is not enough only using data bus to do data exchange and it has the disadvantage of interface singleness, inefficiency of spanning speed rate communication. This paper proposes a new scheme of high speed Link-Port date communication, Link-Port of DSP-TS101 is used as the master control interface in the scheme, data transmitted module, data received module and UART communication module are designed based on FPGA platform, every module is simulated using Modelsim software and the whole scheme is tested in hardware circuit at last. Test result indicates: the Link-Port interface designed in this paper can communicate with peripherals reliably, it has the advantage of flexible interface rate choosing, stability and reliability, the scheme can be used in occasion of multi-rate data communication based on Link-Port.