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What is the FPGA USB interface?

April 26, 2017FPGA interface USB

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What is the FPGA USB interface?

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Simple asynchronous FIFO interface. All USB functions are handled external to the FPGA. FPGA code has no awareness of USB complexity. Once data arrives from host, FIFO empty flag goes false and data can be read out as if it were any other FIFO. Writes are handled similarly.