IPIPE Configuration

Ravikiran,

Yes, it is possible. In iss_02_00_00_00/packages/ti/psp/iss/drivers/capture/src/issdrv_captureApi.c:2176 you'll see eMsbPos set to MSP_IPIPE_BAYER_MSB_BIT11.

Change this to BIT9 and you're good.

There are other definitions littered around the code that should do things (iss_params_default.c:1539 -- #ifdef SENSOR_12BIT) but I haven't been successful with anything but what I described above.

Good luck!

Chris

Hi Chris,

                        I did exactly the same thing as u suggested (Sorry for not writing about the these experiments I did).

1. ISIF_CGAMMAWD register configured for 10th bit as MSB.

2. issdrv_captureApi.c  eMsbPos set to BIT9.

3. iss_params_default.c ignored the macro #ifdef SENSOR_12BIT and forced everything to work with 10-bit data. (BIT9)

 4. Using ISIF_SDRAM_PACK_16BITS (iss_drv_isif.c) for SDRAM write. (using isif register settings accordingly.) (RAW-dump)

Please find the image available in below link.(YUV-streaming screen shot)

 http://1.bp.blogspot.com/-6AHObx4_a6k/UFhJXEUak3I/AAAAAAAAAAc/dugwLaBGWDE/s1600/Screenshot-1.png

I observe some kind of saturation in the bright areas.

Thats why I reverted all my above (1 to 4) changes and Now made CGAMAWD to support 12 bit data, & that works, give a proper picture!!

As I mentioned earlier, it is 10-bit OV sensor. By verifying the raw data I saw the 12 bit data is xxData[9:0]. {11th & 12th bits are Zeros which is expected.}

That means I am passing proper data to IPIPE & IPIPE process this data as 12-bit data & no issue there....!!

Instead of giving 12-bit data as input, I want to pass only 10-bits i.e. Data[9:0] to IPIPE & those changes does not work !!

Looking for help to correct it :)

Thanks you.

Regards

Ravikiran

Hi Chris,

Is der any other way/ hooks to do this ? Plz help.

Thanks in advance

Regards

Ravikiran