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1. Re: GPIF pclk timing question
madhul_36 Aug 14, 2016 1:45 AM (in response to userc_39763)Hi,
What is the frame rate at 48 Mhz? Can you please check if you have any buffer overflow errors? (CyU3PDmaMultiChannelCommitBuffer Api returns error).
Regards,
-Madhu Sudhan
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2. Re: GPIF pclk timing question
userc_39763 Aug 14, 2016 7:38 PM (in response to madhul_36)I have checked. There is no buffer overflow errors.
The resolution of sensor: 1280x1024. The frame rate is 30fps at 48MHz.
I use the usbmon to monitor the amount of usb bus. The result is as follows:
1) 27MHz: the amount of the usb bus is 2621440=1280*1024*2, it is right, the image is normal.
2) 48MHz: the amount of the usb bus is 2623488>1280*1024*2, it is incorrect, which results in the sideling image.