医院中心供氧实时监控系统的CAN总线接口设计

摘要

This paper introduced the design and verification processes of a CAN bus interface for real-time monitoring system of hospital central oxygen supply. According to the requirements of data transmission and control of real-time monitoring system of hospital central oxygen supply, microprocessor MSP430F149 carried CAN protocol controller MCP2515 and transceiver driver PCA82C250 was used to design the interface. The verification results showed that CAN interface extension of microprocessor MSP430F149 had been implemented through the SPI interface of the CAN bus interface which could meet the requirements of data transmission and control of real-time monitoring system of hospital central oxygen supply.%本文阐述了一种医院中心供氧实时监控系统中CAN总线接口的设计及验证过程。针对医院中心供氧实时监控系统数据传输和控制的要求，采用微处理器MSP430F149搭载CAN协议控制器MCP2515及收发驱动器PCA82C250实现。验证结果表明，该CAN总线接口通过其SPI接口实现了微处理器MSP430F149的CAN接口扩展，可以满足中心供氧实时监控系统数据传输和控制的需求。