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BF609 Clipping Registers

Question asked by c_quin on Jul 10, 2014
Latest reply on Jul 11, 2014 by c_quin

Hello,

 

I'm trying to use the EPPI clipping registers to convert the YUV image feed to binary in the VideoLoopbackYUV example in CCES.

I am using all default options except I've altered adi_mt9m114.c to include (at line 1481):

 

        if(adi_eppi_SetClipping(pDevInfo->hPPIDevice,EVEN_CLIP_VALUE,ODD_CLIP_VALUE)!=ADI_EPPI_SUCCESS)

        {

             break;

        }

 

where EVEN_CLIP_VALUE and ODD_CLIP_VALUE are equal and in the form 0x00FA00B4 (for example), but I'm not seeing a difference in the output video via HDMI with different values of the 8-bit high and low clipping values. I haven't found that the EPPI_CTL.RGBFMTEN bit is set, so I'm assuming the EPPI_EVENCLIP and EPPI_ODDCLIP registers shouldn't be ignored in this example.

 

Am I missing a command that would enable the clipping behavior?

 

Thanks.

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