High-speed RS485 energy/data transmission terminal
A data transmission terminal, RS485 technology, applied in the direction of digital transmission system, transmission system, electrical components, etc., can solve the problems of signal distortion, intersymbol interference, little research on RS485 high-speed data transmission technology, etc., to achieve simple hardware circuit, control Flexibility and the effect of increasing data transfer rates
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[0033] The present invention designs and realizes a kind of energy / data transmission terminal of high-speed RS485, and the detailed description in conjunction with each accompanying drawing and embodiment is as follows:
[0034]The transmission terminal of DC energy / data of the high-speed RS485 of the present invention has data sending channel and data receiving channel function, and its composition structure, as figure 1 shown; the transmission terminal includes:
[0035] FPGA (Field-Programmable Gate Array) device 4 is used for data transmission functions such as 8B / 10B encoding, parallel / serial conversion, and clock generation unit, as well as data detection, serial / parallel conversion, 10B / 8B decoding and Data reception such as CRC data verification;
[0036] The RS485 interface unit 3 is used to realize high-speed transmission and reception of serial data under the RS485 bus, and to realize impedance matching between the FPGA device and the RS485 interface device;
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