Luckfox Forums

Hello,

Over the past week I’ve been evaluating your board and quickly ran a number of tests. I customized the DTS and application code for my own image sensor and successfully brought up a 1080p60 YUV 4:2:2 pipeline with both streaming and file recording.

I’m genuinely impressed by the board’s performance. The sample projects you provide have been invaluable for both development and debugging—thank you.

I’d now like to enable another 1106 feature: BT.1120 output. I noticed you offer a working RGB display example; from what I understand, the pinout should be the same, just driven differently.
Could I use that example as a starting point and adapt it to generate a BT.1120 signal? My target is 1280×720 at 50 fps in YCbCr.

Thanks in advance for your guidance.

Hello, we have not tested the output of the BT.1120 signal. The output cannot provide you with the relevant assistance.
If needed, you can refer to the configuration of rv1106-evb-ext-sii902x-bt1120-to-hdmi-v10.dtsi. With the help of sii9022, the image of bt1120 can be converted to HDMI.

Hello,
So your suggestion is to start from that dtsi and then build the code needed to drive the pins and send the image to the output.
Is my interpretation correct?

I have no experience with the BT.1120 interface at all, so I'm unable to offer you any effective suggestions.
At present, it seems that Rockchip only provides examples of converting to HDMI signals. I'm not sure if it can operate independently like the RGB interface. Here is a BT1120 document (only have Chinese), perhaps you can find some inspiration from it.

Hi Crocodile,
If you can share the document with me, I can try to translate it and use it as a guide to understand how it works.
thanks in advance!

Sorry, the attachment was not uploaded successfully in my previous reply.