[1]黄敏娣[],胡正飞[]. 嵌入式RS-232与CAN总线协议的网关设计[J].计算机技术与发展,2015,25(04):208-212.
　HUANG Min-di[],HU Zheng-fei[]. Gateway Design of Embedded RS232 and CAN Bus Protocol[J].,2015,25(04):208-212.
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 嵌入式RS-232与CAN总线协议的网关设计()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
25
期数:
2015年04期
页码:
208-212
栏目:
应用开发研究
出版日期:
2015-04-10

文章信息/Info

Title:
 Gateway Design of Embedded RS232 and CAN Bus Protocol
文章编号:
1673-629X（2015)04-0208-05
作者:
 黄敏娣[1] ; 胡正飞[2]
 1.南京邮电大学 自动化学院；2.南京邮电大学 理学院
Author(s):
 HUANG Min-di[1] ; HU Zheng-fei[2]
关键词:
 ; Cortex-M3 ; CAN ; 组网; 通信
Keywords:
 ; Cortex-M3; CAN; network organization; communication
分类号:
TP31
文献标志码:
A
摘要:
 工业控制领域通信采用CAN进行组网能够更高效地传输数据，不易受干扰，但使用CAN进行组网的门槛较高，不利于用户使用，因此设计了该款网关，隐藏CAN协议的复杂性，使用户通过串口即可访问CAN总线。网关采用基于Cortex-M3内核的STM32F103微处理器作为主控芯片，利用带环形缓冲区的DMA传输从而极大地提高了CPU利用率和RS232传输速度。文中介绍了关键部分的硬件电路设计及软件流程，并通过实验证明，该网关能够稳定高速地完成RS232与CAN网络的桥接，从而论证了该网关的高效性和可靠性。
Abstract:
 In industrial control network communications,using CAN can be able to transfer data more efficiently and reduce interference. However,the use of CAN networking is difficult for users. Therefore,the gateway is designed to hide the complexity of the CAN proto-col,allowing users to access the CAN bus via the serial port. The gateway uses the STM32F103 microcontroller based on Cortex-M3 core as the master chip. Applying the DMA transfer mode with a ring buffer could greatly improve CPU utilization and RS232 transmission speed. Introduce the key part of the hardware circuit design and software processing in this paper. The experimental results show that the gateway can complete the bridge between RS232 and CAN networks stably and rapidly,verifying the efficiency and reliability.

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更新日期/Last Update: 2015-06-05