Hi James, On 12/15/2011 08:14 AM, James wrote:
Hi all, I'm using an OMAP3530 board and a monochrome 12-bit grey sensor. Can anyone enlighten me why is the 12-bit grey formats at the CCDC input (Y12) is truncated to Y10 at the CCDC output?
There are 2 CCDC outputs: CCDC_PAD_SOURCE_OF and CCDC_PAD_SOURCE_VP. Only the VP (video port) truncates data to 10 bits, and it does that because the subdevs it feeds can only handle 10 bits max.
I need to read the entire RAW 12-bit grey value from the CCDC to memory and the data does not pass through other OMAP3ISP sub-devices. I intend to use Laurent's yavta to capture the data to file to verify its operation for the moment. Can this 12-bit (Y12) raw capture be done?
Yes. If you are writing the 12-bit gray value directly into memory, you will use SOURCE_OF and can write the full 12-bits into memory. You need to set up your media pipeline to do sensor->CCDC->OMAP3 ISP CCDC output.
Thank you in adv. -- Regards, James
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