Implementing high speed communication buses for a FPGA-DSP architecture for digital control of power electronics

摘要

This paper describes a communication architecture for a digital controller based on DSP-FPGA to be used in power electronic systems. For high rate transmissions, the proposed architecture has an USB bus implemented with a minimum use of the DSP core, using Enhanced Direct Memory Access and External Memory Interface modules of a TMS320C6713 high performance DSP and Cypress EZ-USB SX2 High-Speed USB Interface Device. Moreover, this architecture has CAN-bus communications to expand system with others subsystem, and a Compact Flash interface to storage data and DSP program, improving platform to boot alone. Host side has an application interface programmed in C with multithreading to process all data due high speed transfers.