中图分类号：TP274 文献标志码：A DOI: 10.16157/j.issn.0258-7998.223646 中文引用格式： 阮翔，任涛，毛佳佳，等. 基于AXI总线复用的DMA数据传输结构设计[J]. 电子技术应用，2023，49(8)：125-129. 英文引用格式： Ruan Xiang，Ren Tao，Mao Jiajia，et al. Design of DMA data transmission structure based on AXI bus multiplexing[J]. Application of Electronic Technique，2023，49(8)：125-129.
Design of DMA data transmission structure based on AXI bus multiplexing
Ruan Xiang，Ren Tao，Mao Jiajia，Zhang Hu
(The 52th Research Institute of China Electronics Technology Group Corporation， Hangzhou 311100， China)
Abstract： When the conventional multi-channel DMA data transmission structure is applied to the multi-sensor connected artificial intelligence platform, with the increase of sensor type and quantity, a lot of FPGA logic and storage resources will be consumed in the process of channel protocol conversion and AXI bus extension, which will easily lead to logic congestion and increase the difficulty of tool routing. At the same time, the closed AXI system lacks the flexibility of channel differential control, and it is difficult to adapt to the multi-mode data transmission requirements of artificial intelligence platform. Therefore, a DMA data transmission structure with AXI bus multiplexing mode is designed, which can greatly reduce the number of AXI buses, reduce FPGA resource consumption and tool routing time, conveniently fit additional logic to realize multi-mode DMA data transmission, and provide a flexible and efficient multi-source data acquisition mechanism for artificial intelligence platform.