• Locked Locked
  • Replies 2 replies
  • Subscribers 54 subscribers
  • Views 579 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CCDC and decoder configuration for dm6437

Saira
Intellectual 565 points
Other Parts Discussed in Thread: TVP5146, TVP5146M2

Hi

I want to take advantage of 16-bit YCBCR input to CCDC. I have two questions

1)   A CCD camera is attached with the DM6437. Frames are fetched to TVP5146 decoder. I want to configure the decoder so that it outputs in YCBCR 8 bit format on its Y{7:0] bits. Decoder is by default outputting REC656. How this configuration is changed to YCBCR8 ???? TVP5146 registers are not accessed by simple address accessing mechanisms in Code Composer Studio. How i2c interface is used to configure TVP5146 ???

 

2)   Decoders Y output is given to CCDC YI[7:0] and CCDC is also going to take input from DC_P1 connector at CI[7:0 ]. In CCS only two color formats are available for CCDC. FVID_CCDC_YCBCR8 and FVID_CCDC_RAW_FORMAT. How CCDC can to configured to take YCBCR 16 bit input so that on YI[7:0] analog camera frame is captured and on CI[7:0] digital video is captured through DC_P1 simultaneously.

 

Plz help

Regrads

  • TI__Expert 6120 points

    The TVP5146M2 already defaults to a 10-bit YCbCr output mode with embedded syncs (i.e. ITU-R BT.656 compliant).  For 8-bit applications, simply use the 8 MSBs of the 10-bit output.  See Table 2-49 in the TVP5146M2 data manual at the below web site.

        http://focus.ti.com/docs/prod/folders/print/tvp5146m2.html

    For the CCS question, I'm going to forward your question to the DM6437 forum.

  • in reply to James Nave
    Intellectual 565 points

    Thanks

    I have done with the configuration of tvp5146 for YCbCr without embedded syncs

    Now I want to capture this in CCDC. When I set the color format to FVID_CCDC_RAW_FORMAT I got the output but when I configure with FVID_CCDC_YCBCR8 I am not able to display any output.

    For the configuration of CCDC with YCBCR 16 bit format I program the SYN_MODE register of CCDC for 16 bit YCBCR format but still not able to get any results.

    I have to configure CCDC in 16 bit YCbCr format so that YI[7:0] comes from decoder and CI[7:0] is inputs from DC_P1 connector. and then I would like to display both these videos. How this can be done ???

    Plz help

    Regards