ZYNQ7020实现axi_dma_loop驱动（SDK驱动）.zip_AXIDMAS_AXIS

共1069个文件

h：152个

c：96个

sv：87个

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134 浏览量 2023-03-21 10:04:23 上传评论 2 收藏 47.66MB ZIP 举报

在嵌入式系统开发中，ZYNQ 7020是一款非常常见的系统级芯片（System on Chip，SoC），由Xilinx公司生产。这款芯片集成了ARM Cortex-A9双核处理器以及可编程逻辑（FPGA）部分，适用于各种需要高性能处理与灵活硬件定制的应用。在ZYNQ 7020平台上，驱动程序的开发是至关重要的，它连接着硬件和操作系统，使得软件能够有效地控制硬件资源。本项目主要涉及的是AXI DMA（Direct Memory Access）的循环驱动，通过SDK（Software Development Kit）进行开发。 AXI DMA是ZYNQ SoC中用于数据传输的重要组件，它支持DMA单向和双向传输，能够在处理器与存储器之间或者处理器与外设之间进行高效的数据搬运。在本项目中，"axi_dma_loop"驱动主要是实现了数据的循环传输，这种模式常用于需要连续、不间断数据流的应用，如音频或视频处理。 SDK是Xilinx提供的软件开发环境，它包含了针对Zynq SoC的嵌入式软件开发工具，如IDE、编译器、调试器等。使用SDK，开发者可以编写、编译、链接和调试针对Zynq处理器的C/C++代码，同时也可以生成硬件平台相关的驱动程序。在ZYNQ 7020实现axi_dma_loop驱动的过程中，首先需要理解AXI DMA的工作原理，包括其配置寄存器、通道设置（比如单通道或双通道）、传输缓冲区管理等。然后，开发者会在SDK中创建一个新的设备驱动模块，通常包括初始化、配置、启动、停止和中断处理等功能。这些函数会操作AXI DMA的硬件寄存器，以控制数据传输。项目描述中提到"项目代码可直接编译运行"，这意味着提供的是一个完整的解决方案，开发者可以直接导入SDK工程，进行编译和调试。这通常包含以下步骤： 1. 在SDK中导入工程，设置好交叉编译链工具。 2. 配置驱动，包括设置AXI DMA的传输方向、数据宽度、地址对齐等参数。 3. 分配并设置DMA传输的缓冲区。 4. 启动DMA传输，并可能需要注册中断处理函数来处理传输完成或错误事件。 5. 编译和下载固件到ZYNQ 7020板子上。 6. 运行并测试驱动，查看数据传输的效果。此外，为了验证驱动的正确性，通常还需要编写用户应用程序，调用驱动接口进行数据传输，并检查结果是否符合预期。这个过程中可能涉及到性能优化，例如合理地预分配缓冲区，减少内存分配和释放带来的开销，或者使用DMA的突发传输功能提高传输效率。 "ZYNQ 7020实现axi_dma_loop驱动（SDK驱动）"项目是一个典型的嵌入式系统驱动开发实例，它涵盖了硬件接口的理解、驱动程序的编写、调试和性能优化等多个方面，对于学习和掌握Zynq SoC的软件开发具有很高的实践价值。通过这个项目，开发者可以深入理解AXI DMA的运作机制，以及如何在SDK环境下进行高效的驱动开发。

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ZYNQ 7020实现axi_dma_loop驱动（SDK驱动）.zip （1069个子文件）

__synthesis_is_complete__ 0B

libxil.a 975KB

runme.bat 229B

bd_44e3.bd 101KB

system.bd 44KB

system_wrapper.bit 3.86MB

bd_44e3.bxml 13KB

system.bxml 6KB

ps7_init.c 329KB

ps7_init_gpl.c 329KB

xadcps.c 54KB

xaxidma_bdring.c 52KB

xdmaps.c 52KB

xil_cache.c 46KB

xscugic.c 34KB

xdevcfg.c 29KB

xaxidma.c 27KB

xuartps_options.c 24KB

xuartps.c 22KB

xscugic_hw.c 21KB

xil_testmem.c 20KB

xil_misc_psreset_api.c 16KB

xuartps_intr.c 14KB

_profile_timer_hw.c 12KB

xil_printf.c 11KB

xil_exception.c 11KB

xaxidma_bd.c 11KB

xil_testcache.c 10KB

xdevcfg_intr.c 9KB

main.c 9KB

xil_testio.c 8KB

xscutimer.c 8KB

xadcps_intr.c 8KB

xpm_counter.c 8KB

xil_mmu.c 8KB

xscugic_intr.c 7KB

xscuwdt.c 6KB

vectors.c 6KB

xuartps_selftest.c 6KB

xuartps_hw.c 6KB

xil_sleeptimer.c 5KB

xl2cc_counter.c 5KB

xcoresightpsdcc.c 5KB

xplatform_info.c 5KB

xil_assert.c 5KB

xscutimer_selftest.c 5KB

profile_cg.c 5KB

xtime_l.c 4KB

xdevcfg_hw.c 4KB

xadcps_selftest.c 4KB

xscuwdt_selftest.c 4KB

xdmaps_hw.c 4KB

xaxidma_sinit.c 4KB

usleep.c 4KB

xscugic_selftest.c 4KB

xdevcfg_selftest.c 4KB

xscugic_sinit.c 4KB

xdmaps_selftest.c 4KB

xscutimer_sinit.c 3KB

xscuwdt_sinit.c 3KB

xadcps_sinit.c 3KB

xuartps_sinit.c 3KB

xaxidma_selftest.c 3KB

xil_io.c 3KB

xdevcfg_sinit.c 3KB

xdmaps_sinit.c 3KB

xil_sleepcommon.c 3KB

_profile_init.c 3KB

sleep.c 3KB

write.c 3KB

xil_mem.c 3KB

read.c 3KB

xaxidma_g.c 2KB

profile_hist.c 2KB

_sbrk.c 2KB

lseek.c 2KB

sbrk.c 2KB

isatty.c 2KB

xscugic_g.c 2KB

_open.c 2KB

xuartps_g.c 2KB

open.c 2KB

xdmaps_g.c 2KB

共 1069 条

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