[FAQ] AM67A: Enabling CSI2 sensors via fusion board on AM6x

Arducam V3Link Mini Fusion

Learn more: https://www.ti.com/tool/ARDCM-3P-V3LINK-CAM

Sensors supported out-of-box: IMX219 & IMX390 (RCM)

Compatible edge AI devices: SK-AM62x, AM67 EVM, SK-AM68 & SK-AM69

Device tree overlay: k3-<device>-v3link-fusion.dtbo

Power up sequence:

1. Power on V3Link board FIRST
2. Power on SK/EVM SECOND

Power down sequence:

1. Disconnect power from SK/EVM board FIRST
2. Disconnect V3Link power SECOND

If you are using two Mini Fusion boards to your EVM, use the CS0 ports and connect to each CSI port on your EVM.

Note: Mini Fusion is not enabled for SK-TDA4VM nor is it supported on PSDK Linux/QNX + RTOS platforms

RPiV2(IMX219) Raw sensor

About this sensor: Raw sensor which requires ISP binaries, located in the /opt/imaging/imx219/linear directory. If this sensor must be configured in a different resolution and format, please refer to the ISP tuning guide to generate new binaries to match your custom sensor configuration.

SK-AM62Ax: Follow the steps of section 2.1.4. "Mini Fusion" of the Edge AI SDK to enable this sensor.

AM67 EVM: Follow the steps of section 2.1.5. "Mini Fusion" of the Edge AI SDK to enable this sensor. 

SK-AM68: Follow the steps of section 2.1.5. "Mini Fusion" of the Edge AI SDK to enable this sensor. 

SK-AM69: Follow the steps of section 2.1.5. "Mini Fusion" of the Edge AI SDK to enable this sensor.

Device tree overlays required for 8x imx219 setup: k3-v3link-imx219-0-0.dtbo k3-v3link-imx219-0-1.dtbo k3-v3link-imx219-0-2.dtbo k3-v3link-imx219-0-3.dtbo k3-v3link-imx219-1-0.dtbo k3-v3link-imx219-1-1.dtbo k3-v3link-imx219-1-2.dtbo k3-v3link-imx219-1-3.dtbo

Note: After making the changes to uEnv.txt, reboot & run /opt/edgeai-gst-apps/scripts/setup_cameras_v3link.sh

IMX390 Raw sensor

About this sensor: Raw sensor which requires ISP binaries, located in the /opt/imaging/imx390/linear directory. If this sensor must be configured in a different resolution and format, please refer to the ISP tuning guide to generate new binaries to match your custom sensor configuration.

Follow the steps outlined in the "Mini Fusion" section of your device's Edge AI SDK. Instead of appending the "k3-v3link-imx219-0-0.dtbo" overlay for imx219, add the "k3-fpdlink-imx390-rcm-0-0.dtbo" overlay for imx390.

SK-AM62Ax: name_overlays=ti/k3-am62x-sk-edgeai-apps.dtbo ti/k3-am62x-sk-evm-v3link-fusion.dtbo ti/k3-fpdlink-imx390-rcm-0-0.dtbo

AM67 EVM: name_overlays=ti/k3-j722s-edgeai-apps.dtbo ti/k3-j722s-evm-v3link-fusion.dtbo ti/k3-fpdlink-imx390-rcm-0-0.dtbo

SK-AM68: name_overlays=ti/k3-am68-sk-edgeai-apps.dtbo ti/k3-am68-sk-v3link-fusion.dtbo ti/k3-fpdlink-imx390-rcm-0-0.dtbo

SK-AM69: name_overlays=ti/k3-am69-sk-edgeai-apps.dtbo ti/k3-am69-sk-v3link-fusion.dtbo ti/k3-fpdlink-imx390-rcm-0-0.dtbo

Device tree overlays required for 8x imx390 setup: k3-fpdlink-imx390-rcm-0-0.dtbo k3-fpdlink-imx390-rcm-0-1.dtbo k3-fpdlink-imx390-rcm-0-2.dtbo k3-fpdlink-imx390-rcm-0-3.dtbo k3-fpdlink-imx390-rcm-1-0.dtbo k3-fpdlink-imx390-rcm-1-1.dtbo k3-fpdlink-imx390-rcm-1-2.dtbo k3-fpdlink-imx390-rcm-1-3.dtbo

Note: After making the changes to uEnv.txt, reboot & run /opt/edgeai-gst-apps/scripts/setup_cameras_v3link.sh

Fusion 1 Rev C

Learn more: https://svtronics.com/product/fusion-application-daughter-board-evm577pfusion-v1-0

Sensors supported out-of-box: IMX390 (RCM)

Compatible edge AI devices: SK-TDA4VM

Device tree overlay: k3-j721e-sk-fpdlink-fusion.dtbo

PSDK Linux/QNX + RTOS Support:

• Sensors supported out-of-box: https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-j722s/10_01_00_04/exports/docs/imaging/imaging_release_notes.html#ImageSensor_Support_Linux_RTOS

• Compatible devices: J721E/J721S2/J722S/J742S2/J784S4 EVMs

Power up sequence:

1. Power on Fusion 1 board FIRST
2. Power on SK/EVM SECOND

Power down sequence:

1. Disconnect power from SK/EVM board FIRST
2. Disconnect Fusion 1 power SECOND

IMX390 Raw sensor

About this sensor: Raw sensor which requires ISP binaries, located in the /opt/imaging/imx390/linear directory. If this sensor must be configured in a different resolution and format, please refer to the ISP tuning guide to generate new binaries to match your custom sensor configuration.

SK-TDA4VM: Follow the steps of section 2.1.5. "IMX390 Raw Sensor" of the Edge AI SDK to enable this sensor.

Note: After making the changes to uEnv.txt, reboot & run /opt/edgeai-gst-apps/scripts/setup_cameras.sh

Fusion 2

Learn more: https://www.ti.com/tool/J7EXPAXEVM

Sensors supported out-of-box: https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-j722s/10_01_00_04/exports/docs/imaging/imaging_release_notes.html#ImageSensor_Support_Linux_RTOS

Compatible devices (PSDK Linux/QNX + RTOS): J721E/J721S2/J722S/J742S2/J784S4 EVMs

Compatible edge AI devices: SK-AM62x

Power up sequence:

1. Power on Fusion 2 board FIRST
2. Power on SK/EVM SECOND

Power down sequence:

1. Disconnect power from SK/EVM board FIRST
2. Disconnect Fusion 2 power SECOND

Note: Fusion 2 is not supported on edge AI devices

Additional Resources

How to stream from camera to display using GStreamer: https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1427869/faq-sk-am69-how-to-stream-from-csi-sensor-to-display-using-gstreamer/

ISP Tuning Guide: https://www.ti.com/lit/an/sprad86a/sprad86a.pdf

DCC Tuning Tool: https://www.ti.com/drr/opn/ADAS-SW-IMAGING