Research of USB OTG Technology in Image High-Speed Data Transfer

In the high speed data transmission field, the mass data, which are obtained by high speed CCD camera, are compressed and stored in large capacity storage unit, and uploaded to the process control unit simultaneously. ISP1761,which is USB protocol chip, is introduced to actualize protocol transform, control Host/ Peripheral switchover, dominate up/down high speed data transfer with the contradiction of duplicative function of data compression board in the USB transfer. In order to give full play to the function of ISP1761, Virtex5 FPGA chip, which contains MicroBlaze function, is adopted to fulfill initialization and Direct Memory Access data transfer. High speed (52.4.8Mbps) compression data transfer is achieved.