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    用dma测试了一下T113S3读取spinor的速度,真是惊人呢

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    • S
      smiletiger LV 6 last edited by

      https://bbs.aw-ol.com/topic/1543/发现一个t113-spi诡异问题?_=1654672907596

      参考之前的帖子,然后现在加了dma测试了一下,读取10MB的时间为181ms,换算下来55MB/s
      因为用的120M时钟,所以理论上是60MB每秒,比用cpu读取的快5倍

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      • aozima
        aozima LV 7 last edited by

        再用上双线,体验双倍快乐!

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        • S
          smiletiger LV 6 @aozima last edited by

          @aozima dma可以用双核同时开启2个?那不是真的爽歪歪

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            liuzhengrong789 LV 2 @smiletiger last edited by

            @smiletiger 单线SPI+DMA吗?想问下支持QSPI吗?就是四数据线的,LZ有研究过吗

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            • A
              awwwwa LV 8 @liuzhengrong789 last edited by

              @liuzhengrong789 4线+内置DMA+DTR,亲测77MB/s

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