Abstract
In some occasions where it is inconvenient for real-time data acquisition and storage, an off-line data memory is needed for data transmission, which calls for a larger storage capacity and data protection without electricity. Also it is supposed to be suitable for a variety of interfaces. In this paper, with USB interface and RS232 interface, we design a satisfying off-line data storage and transmission device, using a high-integrated C8051F340 processor with on-chip USB controller as the core device and a high-capacity memory K9F1208 as data memorizer. Also we design a graphical user interface making use of VB technology. It is proved that this design, which is practical and reliable, is a good way of data storage and transmission for emergency and special application.
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