### DIP Switch Configuration The four CSI PHYs can be routed to either MIPI camera ports or GMSL camera ports (via mezzanine board) using DIP switches.

**Flex cable (Arducam 22-pin Raspberry Pi to Qualcomm 30-pin CSI adapter):**

### MIPI CSI Camera Sensors

## Supported Resolutions | Resolution | Aspect Ratio | IMX577 | OV9282 | | - | - | - | - | | 4000 × 3000 | 4:3 | Yes | No | | 3840 × 2160 | 16:9 | Yes | No | | 1920 × 1080 | 16:9 | Yes | No | | 1280 × 720 | 16:9 | Yes | Yes | | 1024 × 768 | 4:3 | Yes | Yes | | 800 × 600 | 4:3 | Yes | Yes | | 640 × 480 | 4:3 | Yes | Yes | | 320 × 240 | 4:3 | Yes | Yes | Advanced features such as SHDR, LDC, and EIS are not supported on IQ-9075. There is no hardware JPEG encoder — snapshots use a software encoder running on the CPU. ## Camera Streaming ### Single Camera Stream ```bash theme={null} gst-launch-1.0 -e qtiqmmfsrc name=camsrc camera=0 ! \ 'video/x-raw,format=NV12,width=1280,height=720,framerate=30/1' ! fakesink ``` If the pipeline status changes to `PLAYING`, the camera is running. Press `Ctrl+C` to stop. ### Video Encoding ```bash theme={null} gst-launch-1.0 -e qtiqmmfsrc name=camsrc camera=0 ! \ video/x-raw,format=NV12,width=1280,height=720,framerate=30/1,\ interlace-mode=progressive,colorimetry=bt601 ! \ v4l2h264enc capture-io-mode=4 output-io-mode=5 \ extra-controls="controls,video_bitrate=6000000,video_bitrate_mode=0;" ! \ h264parse ! mp4mux ! filesink location=/home/ubuntu/mux_avc.mp4 ``` Retrieve the file: ```bash theme={null} scp -r ubuntu@:/home/ubuntu/mux_avc.mp4 . ``` ### Object Detection Pipeline

Download required models and assets first: ```bash theme={null} cd /home/ubuntu curl -L -O https://raw.githubusercontent.com/quic/sample-apps-for-qualcomm-linux/refs/heads/main/qualcomm-linux/scripts/download_artifacts.sh sudo chmod +x download_artifacts.sh && sudo ./download_artifacts.sh ``` Then run the object detection pipeline: ```bash theme={null} gst-launch-1.0 -e qtivcomposer name=mixer \ sink_0::position="<0, 0>" sink_0::dimensions="<640, 360>" \ sink_1::position="<640, 0>" sink_1::dimensions="<640, 360>" \ mixer. ! queue ! waylandsink enable-last-sample=false fullscreen=true \ qtiqmmfsrc name=camsrc_0 camera=0 multicamera-hint=true ! \ video/x-raw,format=NV12,width=1280,height=720,framerate=30/1 ! queue ! \ tee name=split_0 split_0. ! queue ! qtimetamux name=mux_0 ! queue ! \ qtivoverlay ! queue ! mixer. split_0. ! queue ! qtimlvconverter ! queue ! \ qtimltflite delegate=external external-delegate-path=libQnnTFLiteDelegate.so \ external-delegate-options="QNNExternalDelegate,backend_type=htp;" \ model=/etc/models/yolox_quantized.tflite ! queue ! \ qtimlpostprocess settings="{\"confidence\": 75.0}" results=10 module=yolov8 \ labels=/etc/labels/yolox.json ! text/x-raw ! queue ! mux_0. ``` ### Video Encoding + Snapshot ```bash theme={null} gst-pipeline-app -e qtiqmmfsrc name=camsrc camera=0 ! \ video/x-raw,format=NV12,width=1280,height=720,framerate=30/1,\ interlace-mode=progressive,colorimetry=bt601 ! queue ! \ v4l2h264enc capture-io-mode=4 output-io-mode=5 \ extra-controls="controls,video_bitrate_mode=0,video_bitrate=6000000;" ! \ queue ! h264parse ! mp4mux ! queue ! \ filesink location="/home/ubuntu/mux_720_avc.mp4" \ camsrc.image_1 ! "image/jpeg,width=1280,height=720,framerate=30/1" ! \ multifilesink location=/home/ubuntu/frame%d.jpg async=false sync=true \ enable-last-sample=false ``` From the interactive menu: **(1) Ready → (3) Playing → (p) Plugin Mode → (11) camerasrc → (37) capture-image → (1) Snapshot → enter count** Press Enter → `b` (Back) → `q` (Quit). ```bash theme={null} scp -r ubuntu@:/home/ubuntu/ . ``` ## Multi-Camera with Offline IFE The IQ-9075 has two IFEs for real-time bayer-to-YUV processing. The **Offline IFE** feature allows a single IFE to process two cameras in offline mode, enabling concurrent streaming from all four cameras.

A maximum of two cameras can operate concurrently with real-time IFE. All four cameras can operate concurrently using the Offline IFE feature. Run the 4-camera AI inference pipeline with `multicamera-hint=true` on each `qtiqmmfsrc` source. See the single-camera object detection pipeline above for the pattern — replicate for `camera=1`, `camera=2`, and `camera=3`. ### Verify Multi-Camera Operation **User log — look for:** ``` RealTimeFeatureZSLPreviewRawOfflineIFE_0_cam_0 status is now PipelineStatus::STREAM_ON ``` **Kernel log — look for:** ``` Acquired Single IFE[0] SFE[0] OFFLINE: Y with [9 pix] [0 pd] [0 rdi] ports for ctx:1 ``` ## Troubleshooting ```bash theme={null} systemctl restart cam-server # or pkill cam-server ``` ```bash theme={null} gst-launch-1.0 -e qtiqmmfsrc name=camsrc camera=0 ! \ video/x-raw,format=NV12,width=1280,height=720,framerate=30/1 ! fakesink ``` Collect logs and search for `probe success`: ```bash theme={null} journalctl -f > /home/ubuntu/log.txt ``` **Expected probe success log:** ``` CAM_INFO: CAM-SENSOR: Probe success, slot:0, slave_addr: 0x34, sensor_id:0x577 ``` If no probe success appears, check the flex cable connection or camera module. Enable CSI debug logs and collect dmesg: ```bash theme={null} sudo su echo 3 > /sys/kernel/debug/camera/ife/ife_csid_debug dmesg -w > /home/ubuntu/dmesg.txt ``` Start the camera and check for SOF/EOF IRQ messages in the log. ### Collect Debug Logs ```bash theme={null} journalctl -f > /home/ubuntu/user_log.txt # User space logs dmesg -w > /home/ubuntu/kernel_log.txt # Kernel logs ``` ## Resources | Topic | Link | | - | - | | Camera Architecture | [Camera Architecture](https://dragonwingdocs-staging.qualcomm.com/Addendum-docs/Camera/addendum/Camera-architecture#camera-software-architecture) | | Camera Sensor Driver Development | [Camera Sensor Driver Development](https://dragonwingdocs-staging.qualcomm.com/Addendum-docs/Camera/addendum/Camera-sensor-driver-development) | | Customize Camera Use Case and Pipeline | [Customize Camera Use Case and Pipeline](https://dragonwingdocs-staging.qualcomm.com/Addendum-docs/Camera/addendum/Customize-camera-use-case-and-pipelines) | | Customize Advanced Camera Features | [Customize Advanced Camera Features](https://dragonwingdocs-staging.qualcomm.com/Addendum-docs/Camera/addendum/Customize-advanced-camera-features) |