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。
It takes a tag as its only parameter, converts it to a tag mask, requests a DMA status, and then reads the status.
它接受标签作为惟一一个参数,将它转换为标签掩码、请求dma状态然后再读取状态。
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