基于C8051F040的CAN总线实时大型监控系统  

Design of a Real-time Surveillance System Based on C8051F040 and CAN-bus

作　　者：杨一敏[1] 张培仁[1] 王津津[1] 丁剑文[1] 

机构地区：[1]中国科学技术大学自动化系,合肥230027

出　　处：《自动化与仪表》2008年第7期21-24,共4页Automation & Instrumentation

摘　　要：论述了在设计大型CAN总线控制系统时应该注意的问题,并以此为思路,通过分析和解决问题,介绍了C8051F系列单片机和USB转UART桥接器CP2102组成的控制核心,成功解决了诸如MCU内部指令和总线消息的竞争等问题。使得系统的实时性和可靠性大大提高,具备了广泛的应用条件。A series of questions during the designing are discussed in this paper. Following these questions, the core design of C8051F SOC MCUs and CP2102, a new USB to UART bridge is introduced. The design successfully solves the main issues, such as the confliction in MCU and the data collision in bus. It improves the stability and real-time performances of the system and makes the system suitable for various long-distance real-time surveillance networks.

关 键 词：CAN总线 C8051F 传输瓶颈 数据冲突 CP2102 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]