printf("XAxiDma_SimpleTransfer(XAXIDMA_DMA_TO_DEVICE) failed! ret=%d\n", ret); goto err; } // DMA开始接收数据 ret = XAxiDma_SimpleTransfer(&xaxidma, (uintptr_t)bram2_data->numbers_out, sizeof(bram2_data->numbers_out), XAXIDMA_DEVICE_TO_DMA); if (ret != XST_SUCCESS) { pr...
The AXI CDMA provides high-bandwidth Direct Memory Access (DMA) between a memory-mapped source address and a memory-mapped destination address using the AXI4 protocol. An optional Scatter Gather (SG) feature can be used to offload control and sequencing tasks from the system CPU. Initialization,...
printf("XAxiDma_SimpleTransfer(XAXIDMA_DMA_TO_DEVICE) failed! ret=%d\n", ret); goto err; } // DMA开始接收数据 ret = XAxiDma_SimpleTransfer(&xaxidma, (uintptr_t)bram2_data->numbers_out, sizeof(bram2_data->numbers_out), XAXIDMA_DEVICE_TO_DMA); if (ret != XST_SUCCESS) { pr...
29 memset(DMA_Desc, 0, sizeof(DMA_Desc)); 30 31 //start 32 DMA_Desc[0].next_desc = (INTPTR)(&(DMA_Desc[1])); 33 DMA_Desc[0].buffer_addr = (INTPTR)(data0); 34 DMA_Desc[0].ctrl = sizeof(data0)|XAXIDMA_BD_CTRL_TXSOF_MASK; 35 36 DMA_Desc[1].next_desc = (INTPT...
在一个工程里,有两个Xilinx AXI DMA。其中一个AXI DMA设备是用于调试的。任何时候,其实只使用一个设备AXI DMA设备。 软件使用了bperez77_xilinx_axidma的内核和用户态驱动。bperez77_xilinx_axidma要求接收通道,和发送通道的xlnx,device-id不一样。因此在linux的设备树里,把每个AXI DMA设备的接收通道、发送通道...
【44】ALINX Zynq MPSoC XILINX FPGA视频教程 SDK 裸机开发—AXI DMA之AD9280采集显示Vivado工程 1079 -- 17:11 App 【54】ALINX Zynq MPSoC XILINX FPGA视频教程 SDK 裸机开发—AN5642双目摄像头显示之Vitis工程创建及程序分析 1964 -- 35:09 App 【34】ALINX Zynq MPSoC XILINX FPGA视频教程 SDK 裸机开发—...
(2)axi memory mapped to pci express:如果对于TLP层的处理不太熟悉的话,那这个IP就比较合适了,它屏蔽了TLP协议的处理,通过AXI接口和IP交互数据,这个IP相当于上图中的PCIe core+TLP处理。 (3)dma/bridge subsystem for pci express(pcie):就是xdma,它不但处理了TLP,而且DMA也一起包含在IP中,相当于上图中的...
A zero-copy Linux driver and a userspace interface library for Xilinx's AXI DMA and VDMA IP blocks. These serve as bridges for communication between the processing system and FPGA programmable logic fabric, through one of the DMA ports on the Zynq processing system. Distributed under the MIT ...
42_AXI DMA之AD9708信号发生器Vivado工程 23:18 43_AXI DMA之AD9708信号发生器Vitis工程 17:56 44_AXI DMA之AD9280采集显示Vivado工程 30:04 45_AXI DMA之AD9280采集显示Vitis工程 33:30 46_AXI DMA之AD9238采集显示实验 27:47 47_AXI DMA之AD7606采集显示实验 ...
从SDK安装目录E:\Xilinx\SDK\2015.4\data\embeddedsw\XilinxProcessorIPLib\drivers\axidma_v9_0\src中把所有.h文件copy到SDK工程所在的bsp\microblaze_0\include下,把所有.c文件copy到src目录下,参考xaxidma_example_simple_intr.c文件配置dma,特别注意我们要根据自己ep端的设计来修xaxidma_g.c中的XAxiDma_...