FPGA is regarded as DMA controller, acquisition controller and BUS controller.
把FPGA用作D MA控制器、采集控制器和总线控制器。
This code relies on some utility functions for handling DMA commands. Enter those functions as dma_utils.s
这段代码依赖于一些实用函数来处理 DMA 命令。
On simpler systems, there is a single address map, so the physical addresses used by the CPU to address RAM and peripherals can be freely Shared with other masters as DMA addresses.
在简单的系统,有一个单一的地址映射,如此使用由CPU处理的RAM的物理地址和外设可以与其他主作为DMA地址被自由分享。
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