因此在linux的设备树里,把每个AXI DMA设备的接收通道、发送通道的xlnx,device-id依次设置为了1、2、3、4。运行bperez77的用户态测试程序axidma_transfer时,报告错误。 跟踪代码,先是发现内核驱动程序分配内存失败,再继续下去,发现是因为xlnx,device-id大于了设备的通道数量(2),导致内核驱动报告错误。把两个AXI DMA...
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...
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...
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 ...
基于PCI Express Integrated Block,Multi-Channel PCIe QDMA Subsystem实现了使用DMA地址队列的独立多通道、高性能Continous或Scather Gather DMA,提供FIFO/AXI4-Stream用户接口。 基于PCI Express Integrated Block,Multi-Channel PCIe RDMA Subsystem实现了使用DMA Ring缓冲的独立多通道、高性能/超低延时/超低抖动Continous...
4、Zynq PS-PL交互AXIDMA fpga工程及linux驱动代码(补) 18:33 5、Zynq PS-PL通信应用实战-fpga工程+linux驱动+应用app 28:19 6、xilinx Zynq ug585手册axi-dma和interrupt解读 19:07 7、Zynq PS-PL axi-dma fpga用户逻辑代码简易解读 16:47 zynq芯片网口实现的三种方式 球球打球2 441 3 40元Zynq...
A zero-copy, high-bandwidth Linux driver and userspace interface library for Xilinx's AXI DMA and VDMA IP blocks. The purpose of this software stack is to allow userspace Linux applications to interact with hardware on the FPGA fabric. The driver and userspace library act as a generic layer...
axidma的BD工程,亲测可以利用此工程在myir的开发板上进行AXIDMA测试,本资源主要是axidma的sg模式回环测试 axidma linux驱动 xilinx-zynq 设备树 vivado工程2020-11-08 上传大小:53.00MB 所需:49积分/C币 linux_device_driver_version_III_source_code.rar_Linux驱动 ...
2.3 Axi slave vip的memory model 使用agent.mem_model.backdoor_memory_write等函数可以绕过vip直接对memory model进行一些读写操作,在xilinx vip api文档中有详细介绍,需要注意只有带memory model的vip才支持这类功能。 03 使用自己的仿真环境 dma_sim_vivado工程中含有两个仿真源,一个是只测试AXI与AXI-Stream通路...
A zero-copy, high-bandwidth Linux driver and userspace interface library for Xilinx's AXI DMA and VDMA IP blocks. The purpose of this software stack is to allow userspace Linux applications to interact with hardware on the FPGA fabric. The driver and userspace library act as a generic layer...