基于P87C591单片机的CAN-232转换接口  

Conversion Interface CAN-232 Based on Single Chip Computer P87C591

作　　者：李科亮[1] 郭世明[1] 苏玉香[1] 周丽南[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《仪表技术与传感器》2009年第3期67-69,共3页Instrument Technique and Sensor

摘　　要：提出一种通过RS-232串口和CAN总线实现双向通信的方案。该方案以内嵌CAN控制器(SJA1000)的P87C591单片机作为主控制器,以82C250作为CAN总线接口驱动芯片,以MAX232作为RS-232电平转换芯片设计CAN-232转换接口,对其硬件电路和软件编程给出了详细分析,为以后一系列开发提供了良好的基础。在实际运用中,该转换接口运行稳定、可靠。This paper presented a project to carry out bidirectional correspondence between RS -232 and CAN bus. The pro- ject took single chip computer P87C591 with a CAN controller（SJAI000） inside as the main controller, took 82C250 as CAN bus interface drive chip, took MAX232 as RS -232 voltage level conversion chip. The paper introduced hardware circuit and software programme of conversion interface CAN -232 in detail, provided good foundation for series development in the future. In the usage of conversion interface, it ran stably and credibly.

关 键 词：CAN总线 RS-232 P87C591单片机 82C250 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]