How to set frame rate in VDMA

[vinod.sajjan]

Hi Folks,

I am using VDMA for read and write to DDR3.

I am sending the image data from image sensor 4 frames per second, in this case how to handle the data in VDMA.

I need known how to configure the VDMA for frame rate.

Please suggest me regarding this.

Thanks and Best Regards

Vinod Sajjan

[u4223374]

The VDMA doesn't need to know anything about framerate. Framerate is set by the camera; most cameras just output data at whatever speed they want to with no back-pressure (ie the VDMA block has no way to adjust the speed of the camera).

[vinod.sajjan]

Hi @u4223374,

Thank you for your replay.

Okay.

But I have doubts.

->If, I write the data into DDR3 through VDMA only one time means how many time VDMA reads the data from DDR3?.

-> It is possible to make DDR3 read operation event base through VDMA?, means If only one time  write data to DDR3 through VDMA  than only one time i have to read.(1 write means 1 read).

please suggest me regards these doubts please do needful.

Thanks and Best Regards

Vinod Sajjan