EtherCAT Data Acquisition System Based on DMA Mode
Data in peripheral registers can be read without cycle stealing in DMA (Direct Memory Access) mode, which work in parallel with CPU, so it can achieve real-time data processing to great extent. Because of this, when it refers to mass data acquisition, to further improve the real-time performance, a data acquisition system based on EtherCAT in DMA mode is proposed. This paper simply introduces the technical features of EtherCAT technology, analyzes the working principle of the system in DMA mode in detail, and completes the hardware connection and software implementation of the system. The feasibility of the whole system is verified through experiment of multi-channel analog data acquisition.
EtherCAT DMA PICmicrocontroller data acquisition real-time
Muguo Li Hua Liu Lei Wang Qun Zhang Jing Wang
State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian, Chi Department of Electronic & Information Engineering Dalian University of Technology Dalian, China
国际会议
海口
英文
203-206
2011-07-15（万方平台首次上网日期，不代表论文的发表时间）