Ahigh-density Data Collection System Based On The Interface Of USB

Universal Serial Bus is a new-style bus transmission model. With the advance of the client's requirement on data collection of a system, as a late-model interface technology, USB is well accepted by vast clients because of its simplicity and high speed. In the fields of science research and laboratory, data collection of a controlled system has usually been accomplished by microprocessor and USB interface chip. So this article sets forth these tasks as follows: singlechip programs the fireware to the USB interface chip--PDIUSBD12; communication appears between D12 and up-location computer andman-machine mutual interface comes into being; lots of data from the industry spot are printed, analyzed and disposed on time. On the base of wonderful understanding to USB protocol and device truss, I finish the hardware design and software programme of the data collection system. And draw the principle chart and make the hardware exploitation board. The software programme mainly includes: the fireware code in need of D12's maximum transmission rate; USB device driver and client application under the circustance of Win2000 operation system in computer. After this data collection system, we can understand the USB protocol profoundly and apply the interface chip-PDIUSBD12 proficiently. In all, the advantages of this interface technique may helps to your design arrangement.