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

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 SX2trade 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.