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对RS485总线实现系统的故障分析与软件升级进行了研究,提出了利用TMS320F2812内置的SCI模块实现RS485总线通信,进行了RS485总线通信电路的设计,对RS485底层软件进行分析和设计。通过实际的通信试验,结果表明,RS485总线通信运行可靠,数据传输准确,符合预期的设计目标。
RS485 bus system failure analysis and software upgrades were studied, the use of TMS320F2812 built SCI module to achieve RS485 bus communication, the RS485 bus communication circuit design, RS485 underlying software analysis and design. Through the actual communication test, the results show that the RS485 bus communication is reliable and the data transmission is accurate, in line with the expected design goals.