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用dma测试了一下T113S3读取spinor的速度,真是惊人呢

D1系列-RISC-V

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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 LV 6 last edited by

再用上双线，体验双倍快乐！
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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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