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USB Superspeed Peripherals

Anonymous
Not applicable

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
Not applicable

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.

View solution in original post

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