Adding SDI Outputs to HD-DVR?

Hi Mathias, 

   In case of the SDI Output Ridgerun has experience with the GS2972, we have the v4l2 driver for the chip and is being used with the DM816x. About DVI we have used the SIL9024 with the DM8168. Using the DVO outputs

Which SW release are you using? EZSDK or RDK? Ridgerun SDK is integrated with the EZSDK 5.05.02.00

-David

4760.VVDN_HD_SDI_GUI.pptx

Attached is the GUI options to enable HDSDI capture on VVDN reference design. Can you indicate what issue you are facing when enabling HDSDI capture

Hi Badri,

thanks for the quick replay. The SDI-Input/Capture options are fine. I'm looking for options to add SDI as well as DVI Outputs too since the DVR supports HDMI/VGA/Composite-Only.

Looking forward to your answers.

Thanks

Mad.

Hi David,

thank you very much for your quick replay. I've checked the GS2972. Could you share how to connect it to the DM8168 (which output port?).

We are using the RDK HDVRRDK_1.1.2.71, at least this is the name of the folder the RDK is located in.I'll check back for the version on monday.

Thank you.

Mad

816x has 3 HD (DVO1/DVO2/HDCOMP) and 1 SD (SDVENC) display vencs

On VVDN HD SDI reference design the connection are:

DVO1/HDMI - On Chip HDMI output

DVO2 ->SIL9022A -> Off chip HDMI output

HDCOMP -> ths7360 -> VGA (Display is tied to HDMI display)

SD Venc -> Composite

I don't have VVDN HD SDI reference design with me but looking at the usecase it appears

nothing is output on DVO2 ->SIL9022A -> Off chip HDMI output path

Do you want to modify the hardware to

DVO2 ->SDI Transmitter -> SDI output

and make the corresponding usecase changes ?

Hi Mathias,

    As Badri mentions you can use either DVO1 (depends if you want to use the HDMI built-in too) or DVO2 to connect your SDI transmitter, in case of the GS2972 we feed it using 16bits with embedded sync words.

-David

Please note that if you are also planning to use on chip hdmi, then it would be better to use DVO2.

Regards,

Brijesh

Hi Badri,

thank you very much for the comprehensive information. What I plan to do is to create a costume board based on the VVDN Reference Design. The following output use cases should be possible:

Case 1

• DVO1 -> HD/SD-SDI Output
• DVO2 -> HD/SD-SDI Output
• HDCOMP -> VGA
• SD VENC -> Composite

Case 2

• DVO1 -> HD/SD-SDI Output
• DVO2 -> DVI
• HDCOMP -> VGA
• SD VENC -> Composite

The IO-Components should be moved to a separate IO-Board and populated based on the use case. I must admit I'm pretty new at the DaVinci platform. How would I implement the DVO1 (on chip HDMI Output) -> HD/SD-SDI Output?

Looking forward to your advice!

Thank you very much!

You can refer ti816x datasheet for hardware connections for DVO1 output where details are documented.

Note that DVO1 output pins are pinmuxed with VIP1 so you will have to disable one VIP port if you want DVO1 output.

Pls check if that is acceptable for your product.

From s/w side there is nothing spl you have to do to get DVO1 output apart from setting correct pinmux.

The usecase already outputs data on DVO1/HDMI.

You can refer this post for enabling DVO1 output DM8168 VOUT1 output signals

I don't know about HD_SDI transmitter configuration. Generally externalEncoders are controlled by i2c cmds from application and no changes are required in dvrrdk.