SK-AM62A-LP: Setting the AM62A to get a frame without camera

Rachel Mizrachi

Intellectual 260 points

Part Number: SK-AM62A-LP

Tool/software:

Hi,

In our custom board (AM62A) we need to get frames without camera (We send frames by other device).

How can I configure the AM62A side to get the frames, and how can I read the received frames in AM62A?

With the "cam -c1 --stream width=640,height=480,pixelformat=UYVY -C20 -F#.uyvy" command,
I get error:

root@am62axx-evm:/opt/edgeai-gst-apps# cam -c1 --stream width=640,height=480,pixelformat=UYVY -C20 -F#.uyvy
[2:10:40.245593215] [1464]  INFO Camera camera_manager.cpp:298 libcamera v0.0.5+dirty (2024-05-08T12:52:32+00:00)
[2:10:40.250396980] [1465] ERROR SimplePipeline simple.cpp:1424 No sensor found
Camera 1 not found
Failed to create camera session
root@am62axx-evm:/opt/edgeai-gst-apps#

Thanks,
Rachel

over 1 year ago

0 Suren Porwar over 1 year ago

TI__Mastermind 30145 points

Hi Rachel,

Our expert is out of office for two weeks. Expect a response when he will be back in office.

In the meantime, you can actually try using HDMI-to-CSI instead of camera and give it a try:

https://www.amazon.com/Geekworm-Raspberry-TC358743-Supports-Compatible/dp/B09GY9M9BX?th=1

Also TC358743 driver is available in the kernel.

Best Regards,

Suren

0 Rachel Mizrachi over 1 year ago in reply to Suren Porwar

Intellectual 260 points

Hi Suren,

Your expert can help me to know how can I configure the AM62A side to get the frames, and how can I read the received frames in AM62A?

Thanks,

Rachel

0 Jianzhong Xu over 1 year ago in reply to Rachel Mizrachi

TI__Guru 59445 points

Hello Rachel,

Rachel Mizrachi said:
In our custom board (AM62A) we need to get frames without camera (We send frames by other device).

How are you sending data from the device? What protocol and HW interface are you using?

Regards,

Jianzhong

0 Rachel Mizrachi over 1 year ago in reply to Jianzhong Xu

Intellectual 260 points

Hi Jianzhong,

We are sending data over mipi protocol, we support two formats DSI and CSI.

Thanks,
Rachel

0 Jianzhong Xu over 1 year ago in reply to Rachel Mizrachi

TI__Guru 59445 points

Below is the AM62A CSI2 Rx interface. Please refer to the TRM for more details.

If your MIPI device has D-PHY transmitter, it should work with AM62A. You'll need to implement the driver for your MIPI device and integrate it into the V4L2 framework.

0 Rachel Mizrachi over 1 year ago in reply to Jianzhong Xu

Intellectual 260 points

Hi Jianzhong,

Thanks for your answer.
My MIPI device sends frames, but I don't know how to get them in AM62A.

root@am62axx-evm:/opt/edgeai-gst-apps# v4l2-ctl --list-devices
TI-CSI2RX (platform:30102000.ticsi2rx):
        /dev/media0

e5010 (platform:e5010):
        /dev/video2

wave5-dec (platform:wave5-dec):
        /dev/video0

wave5-enc (platform:wave5-enc):
        /dev/video1

root@am62axx-evm:/opt/edgeai-gst-apps# v4l2-ctl -d /dev/media0 --list-formats
Unable to detect what device /dev/media0 is, exiting.
root@am62axx-evm:/opt/edgeai-gst-apps#

Can you help me please?

Thanks,
Rachel

0 Rachel Mizrachi over 1 year ago in reply to Rachel Mizrachi

Intellectual 260 points

Hi Jianzhong,

I need to know what need to set in the AM62A for get the frames,
We send to the AM62A frames with below parameters:
Header = 5, footer = 15, pixel = 3840, lines = 2180, pixel format = RAW12, D-PHY speed = 2500Mhz, FPS = 24.
Can you help me please to know what need to define in the AM62A and what need to define in DTS file?

Thanks,
Rachel

0 Jianzhong Xu over 1 year ago in reply to Rachel Mizrachi

TI__Guru 59445 points

Hi Rachel,

Please refer to IMX219 driver: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/drivers/media/i2c/imx219.c?h=ti-linux-6.1.y and the device tree overlay: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso?h=ti-linux-6.1.y.

Regards,

Jianzhong

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SK-AM62A-LP: Setting the AM62A to get a frame without camera