一种基于SoPC的FPGA在线测试方法

摘要

针对Altera公司现有FPGA在线测试方法无法适应大批量测试/激励数据自动传输的情况,论文提出了一种基于SOPC的FPGA在线测试方法,该方法采用Nios Ⅱ控制数据传输过程、DMA协助数据传榆、FIFO作为数据暂存,采用自定义外设完成了DMA模块与FIFO的接口设计,从而DMA可以直接操作FIFO,测试结果表明该方法是一种可行且高效的FPGA在线测试方法.创新性在于充分利用JTAG接口完成FPGA的在线测试,同时测试数据能够写入PC中的文件/激励数据从文件读出.%An in-system testing method of FPGA based on SoPC is presented on account of the existing in-system testing methods created by Altera can't transfer data automatically in bulk.Nios Ⅱ is adopted in the method to control the process of data transmission assisted by DMA.FIFO is taken as the data temporary storage.The user-defined peripherals are employed to complete the interface design of DMA and FIFO, so that user-defined peripherals coordinate them and DMA operates FIFO directly.Testing results demonstrate this method is feasible and efficient.Innovation of this paper is that JTAG is fully used and the in-system testing data can write to/read from files stored in PC.