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USB Low-Full-High Speed Peripherals

abhishekps
New Contributor II

Hi

I am having one more problem with FX2LP while streaming video data.

Please help us to understand if while requesting data from FX2LP is there a possibility of FX2LP endpoint buffer getting stuck? Means FLAGB activity stops and no further data exchange happens.

When I was testing on EVK with the bulksrc example I found that if the EP buffer is not full and you request data from it then it will get stuck. Can the same scenario happen in webcam stream mode also? If so, then what are all the conditions in which we can get into this state? Please help to understand this.

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2 Replies
MallikaK_22
Moderator
Moderator

Hi,

Can you please share your source code and USB logs?

Mallika
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abhishekps
New Contributor II

Hi Mallika,

Please find the following. Here I tried to read FIFO data without sending any data to it.

abhishekps_0-1638160415779.png

 

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