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USB Superspeed Peripherals
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- GPIF to USB DMA Manual channel don't work
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Anonymous
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Jul 09, 2018
02:25 AM
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Hi,
I am using GPIF to transfer data to USB.
Now if i config the dma channel as auto mode, the channel work well. But when i config the dma channel as manual mode, add the prob notification and callback. I cant see the callback has been called.
The size of dma is 15KB and the count is 8 .
Anyone can give me some ideas the reason?
Thanks a lot!
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1 Solution
Anonymous
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Jul 11, 2018
07:09 PM
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I have solved this problem.
The reason is that I only load the GPIF configuration, but did not initialize the PIB configuration.
But I still don't know why I can work without initializing the PIB in Auto mode, that confuses my judgment.
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