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Abstract: Aiming at the problem of USB communication interruptand single interface of traditional Carbon sulfur analyzer controlled by single-chipprocessor , a data acquisition board including 24-bit high precision chip ADS1224 ,CH376 USB and W5500 Ethernet module circuit was designed based on TMS320F2806 Controller . The communication between F2806 and sub modules are realized through SPI bus, debugged in CCS2.0 environment .CH376s API function and Socket are used to transmit data by means of USB and Ethernet interface under VC++ condition.The result shows that circuits of system are designed correctly. The timing controlled by software between TMS320F2806 and sub modules of system was also verified. Accuracy and precision of data analysis make it possible for data acquisition board to measure the Carbon and Sulfur of ferroalloy under industrial environment. 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