DM8147 Address Offset -- 16 Bytes on each frame

David Graham1

We are using the Link API directly, not McFW. We are using ipcFrameIn to move data from the VPSS processor to the A8 processor. When we check the physical address of each frame in memory, the address of each frame ends in 0x??????90. When we look in the memory, the data appears to originate at 0x??????80. The data appears to be offset by 16 bytes. Does anyone know why this might happen? Has anyone seen this?

over 12 years ago

0 Badri Narayanan over 12 years ago

TI__Guru 59700 points

Can you please provide details of the chain you are using. i.e. How the links are connected. What is the link before ipcFramesOutVpss.

0 David Graham1 over 12 years ago

Prodigy 20 points

VIP0A/B VIP1A source -> Frame Out VPSS -> Frame In A8

0 Badri Narayanan over 12 years ago in reply to David Graham1

TI__Guru 59700 points

Pls check if you have set CaptureLink_CreateParams.enableSdCrop & CaptureLink_CreateParams.doCropInCapture set to TRUE.Pls check if you still see the issue even after setting them to FALSE.

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DM8147 Address Offset -- 16 Bytes on each frame