cypress FX3 Error in CyU3PDmaMultiChannelCommitBuffer periodically

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Anonymous
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Hi All,

   

I am streaming VGA(640x480)@30fps.

   

I am using FX3 super speed development kit. I use usb 2.0 cable. I changed camera 30fps setting in camera setting.

   

I am using application note:AN75779

   

I got  Error in CyU3PDmaMultiChannelCommitBuffer periodically.

   

Below I attached...Kindly give some advise to solve this?

   

 

   

Regards,

   

RAJ M

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3 Replies
Anonymous
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Hi,

   

This issue is caused when the rate at which the PC reads the data is less than the rate at which the sensor pumps in the data.

   

We need to review your code.

   

Please create a Tech Support case with us, attaching your code.

   

Regards,

   

- Madhu Sudhan

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Anonymous
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Hi Madhu Sudhan,

   

Thanks for your reply,

   

I already create Tech support case 

   

Tech case no:00277019

   

I attached my code too in it.

   

Regards,

   

RAJ M

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Anonymous
Not applicable

Hi,

   

I am using USB 2.0. so can I change 

   

/* Configure the video streaming endpoint. */
    endPointConfig.enable   = 1;
    endPointConfig.epType   = CY_U3P_USB_EP_BULK;
    endPointConfig.pcktSize = 0;                                 //CY_FX_EP_BULK_VIDEO_PKT_SIZE=1024;
    endPointConfig.isoPkts  = 1;
    endPointConfig.burstLen = 16;
    endPointConfig.streams  = 0; 

   

Regards,

   

RAJ M

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