In order to realize the online configuration of FPGA by computer and high-speed data transmission at the same time, a USB2.0 interface design scheme based on CY7C68013A chip is proposed. The system hardware circuit design and software programming with CY7C68013A chip as the core are introduced, and the firmware programming method of CY7C68013A is analyzed in detail. When configuring FPGA, CY7C68013A chip is controlled by the internal CPU of the chip, and the configuration speed is 6 Mb/s, while the slave FIFO mode is used for data transmission to realize high-speed data communication. This scheme can be widely used in the development of software radio projects.
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