TC358743 interfacing with Jetson Nano

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

Hello,

Here I am working with TC358743 HDMI to CSI converter using custom board of Nvidia jetson Nano.

I am basically interfacing with TC358743 with 4 CSI lane and I2C0 port.
Please check attached dtsi file.
tegra210-tc358743.txt (9.1 KB)

Currently I can able to read input from TC358743 at 1080p60FPS using 4 lanes.
But when I change input from 1080p60FPS to 1080p30FPS then according to driver only 2 lanes are required for reading input.

That time when I tried to read input its not working.
I just want to know when we configure dtsi for 4 lane then from that 2 lane input can be read ?

Please guide me on this.

Thanks.

2

Hello,

I had one more query here that TC358743 takes HDMI inputs from source.
It takes video as well as audio data from source through HDMI.
On CSI side it send video data and through I2S it send audio data.
Using both channels SOM can read audio as well as Video data.
But in TC358743 has one more property that it embedded audio data in CSI port itself means there is no need of separate audio channel.
Here I want to know that whether Jetson Nano can read audio data through CSI ?
If yes, can I get some reference on that?

Thanks.

4

hello rusurya,

you should have device tree settings identical with your bridge outputs.
for instance, if you configure it as 4-lane in device tree, you should have it output by using 4-lane as well.

6

hello rusurya,

that’s not supported.
HDMI2CSI only video frame data can be captured.

7

Hello Jerry,

Thanks a lot for reply.

As you said In Nano audio over CSI is not supported.
Is this condition applies to TX2 NX and Xavier NX SOMs also?

Thanks.

8

for HDMI2CSI, it only video frame data can be captured.

10

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