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Location of sample HDMI CEC application in DM8168 PSP?

Matt Roberds
Prodigy 50 points

Hello all!

My goal: Play around with sending and receiving CEC on the HDMI output from the DM8168.

My hardware: DM8168 EVM from Spectrum Digital.  (It says "816X/389X EVM, ASSY 512870, REV G".)

My software: TI81XX PSP v04.04.00.02 (plus other ones I checked, see below for details); EZ-SDK 5.05.02.00

My question, short version: The "TI81XX PSP User Guide" http://processors.wiki.ti.com/index.php/TI81XX_PSP_User_Guide refers me to the "TI81XX PSP HDMI Driver User Guide" http://processors.wiki.ti.com/index.php/TI81XX_PSP_HDMI_Driver_User_Guide .  The HDMI driver user guide has an "HDMI CEC" section at the end, which mentions a demo application for CEC.  I can't find the source (or executable) for this demo application in the V04.04.00.02 PSP - where is it?

Additional details:

I am pretty sure I have the HDMI driver loaded correctly. For the moment, I am booting the EVM from the SD card that the "EZ-SDK 816x EVM demo binaries" v5.05.02.00 will make for you.  I have the EVM kit HDMI monitor plugged in, and I get a picture and can run the demo applications that are available on the GUI.  lsmod shows the "ti81xxhdmi" driver loaded.  I have the character device /dev/TI81XX_HDMI (251, 0) and I also have the various ti81xxhdmi sysfs entries.

I started with the PSP v04.04.00.02, because that one seems to be the newest one that supports my device (DM8168).  It does have a src/examples directory, but none of the code in or under this directory seems to do anything with CEC.

I thought maybe the HDMI driver document was referring to code available in a different or older PSP, and the HDMI driver document has not been updated.  I downloaded PSP v04.00.00.10 , the oldest 816x release, and I can find the examples, but I can't find an HDMI CEC example; I also downloaded PSP v04.00.02.14, the latest 816x release, but I can't find an HDMI CEC example in it either.

(For reference, the various versions of the DM81xx PSPs are linked from http://processors.wiki.ti.com/index.php?title=DM81xx_C6A81xx_AM38xx_Linux_Releases .)

Am I looking in the wrong place?  Is the HDMI driver document out of date?  Is the HDMI CEC example program available separately somewhere?

Thanks for your help!

Matt Roberds

  • 0
    Prodigy 50 points

    An update, in case anyone else finds this in the future:

    I also pursued this question via email with my TI sales rep.  He verified that the HDMI sample application is "not part of the RDK deliverables".  So my first question is answered - it's not in there.

    He did say that TI has a sample application, but they are not sure if it works, and I have not yet gotten a copy from them.

    If I can, I will put a note on the HDMI Driver User Guide wiki page about this as well.

    Matt Roberds