[HOW-TO] How do i sucessfuly use 2 IMX500 cameras simultaneously? #1340
Description
I've been trying to use 2 x IMX500 cameras on Raspberry Pi 5 with raspberry 65 bit OS. Camera 0 fails at the model loading stage:
front-cam@front-cam:~ $ cd /home/front-cam/picamera2-main/examples/imx500 && python my_imx500_object_detection_demo_01.py --camera 0 --threshold 0.5 --model /usr/share/imx500-models/imx500_network_ssd_mobilenetv2_fpnlite_320x320_pp.rpk
[0:10:17.245264742] [5008] INFO Camera camera_manager.cpp:330 libcamera v0.5.2+99-bfd68f78
[0:10:17.258038130] [5012] INFO RPI pisp.cpp:720 libpisp version v1.2.1 981977ff21f3 29-04-2025 (14:17:26)
[0:10:17.264337902] [5012] INFO IPAProxy ipa_proxy.cpp:180 Using tuning file /usr/share/libcamera/ipa/rpi/pisp/imx500.json
[0:10:17.275223645] [5012] INFO Camera camera_manager.cpp:220 Adding camera '/base/axi/pcie@1000120000/rp1/i2c@88000/imx500@1a' for pipeline handler rpi/pisp
[0:10:17.275290761] [5012] INFO RPI pisp.cpp:1179 Registered camera /base/axi/pcie@1000120000/rp1/i2c@88000/imx500@1a to CFE device /dev/media0 and ISP device /dev/media2 using PiSP variant BCM2712_D0
[0:10:17.275365599] [5012] INFO RPI pisp.cpp:720 libpisp version v1.2.1 981977ff21f3 29-04-2025 (14:17:26)
[0:10:17.280146103] [5012] INFO IPAProxy ipa_proxy.cpp:180 Using tuning file /usr/share/libcamera/ipa/rpi/pisp/imx500.json
[0:10:17.290415454] [5012] INFO Camera camera_manager.cpp:220 Adding camera '/base/axi/pcie@1000120000/rp1/i2c@80000/imx500@1a' for pipeline handler rpi/pisp
[0:10:17.290451845] [5012] INFO RPI pisp.cpp:1179 Registered camera /base/axi/pcie@1000120000/rp1/i2c@80000/imx500@1a to CFE device /dev/media1 and ISP device /dev/media3 using PiSP variant BCM2712_D0
NOTE: Loading network firmware onto the IMX500 can take several minutes, please do not close down the application.
[0:10:17.324182000] [5008] INFO Camera camera.cpp:1215 configuring streams: (0) 640x480-XBGR8888/sRGB (1) 2028x1520-RGGB_PISP_COMP1/RAW
[0:10:17.324420924] [5012] INFO RPI pisp.cpp:1483 Sensor: /base/axi/pcie@1000120000/rp1/i2c@88000/imx500@1a - Selected sensor format: 2028x1520-SRGGB10_1X10/RAW - Selected CFE format: 2028x1520-PC1R/RAW
Network Firmware Upload: 0%| | 0.00/3.78M [00:11<?, ?bytes/s]^Z
[1]+ Stopped python my_imx500_object_detection_demo_01.py --camera 0 --threshold 0.5 --model /usr/share/imx500-models/imx500_network_ssd_mobilenetv2_fpnlite_320x320_pp.rpk
front-cam@front-cam:~/picamera2-main/examples/imx500 $
I then simultaneously open a new terminal and try camera 1:
front-cam@front-cam:~ $ cd /home/front-cam/picamera2-main/examples/imx500 && python my_imx500_object_detection_demo_01.py --camera 1 --threshold 0.5 --model /usr/share/imx500-models/imx500_network_ssd_mobilenetv2_fpnlite_320x320_pp.rpk
[0:11:34.890884097] [5069] INFO Camera camera_manager.cpp:330 libcamera v0.5.2+99-bfd68f78
[0:11:34.903700127] [5073] INFO RPI pisp.cpp:720 libpisp version v1.2.1 981977ff21f3 29-04-2025 (14:17:26)
[0:11:34.904426401] [5073] ERROR V4L2 v4l2_device.cpp:390 'imx500 10-001a': Unable to set controls: Device or resource busy
[0:11:34.910037435] [5073] INFO IPAProxy ipa_proxy.cpp:180 Using tuning file /usr/share/libcamera/ipa/rpi/pisp/imx500.json
[0:11:34.920964341] [5073] INFO Camera camera_manager.cpp:220 Adding camera '/base/axi/pcie@1000120000/rp1/i2c@88000/imx500@1a' for pipeline handler rpi/pisp
[0:11:34.921113422] [5073] INFO RPI pisp.cpp:1179 Registered camera /base/axi/pcie@1000120000/rp1/i2c@88000/imx500@1a to CFE device /dev/media0 and ISP device /dev/media2 using PiSP variant BCM2712_D0
[0:11:34.921260151] [5073] INFO RPI pisp.cpp:720 libpisp version v1.2.1 981977ff21f3 29-04-2025 (14:17:26)
[0:11:34.926504724] [5073] INFO IPAProxy ipa_proxy.cpp:180 Using tuning file /usr/share/libcamera/ipa/rpi/pisp/imx500.json
[0:11:34.937003222] [5073] INFO Camera camera_manager.cpp:220 Adding camera '/base/axi/pcie@1000120000/rp1/i2c@80000/imx500@1a' for pipeline handler rpi/pisp
[0:11:34.937075318] [5073] INFO RPI pisp.cpp:1179 Registered camera /base/axi/pcie@1000120000/rp1/i2c@80000/imx500@1a to CFE device /dev/media1 and ISP device /dev/media3 using PiSP variant BCM2712_D0
NOTE: Loading network firmware onto the IMX500 can take several minutes, please do not close down the application.
[0:11:34.972705483] [5069] INFO Camera camera.cpp:1215 configuring streams: (0) 640x480-XBGR8888/sRGB (1) 2028x1520-RGGB_PISP_COMP1/RAW
[0:11:34.972946827] [5073] INFO RPI pisp.cpp:1483 Sensor: /base/axi/pcie@1000120000/rp1/i2c@80000/imx500@1a - Selected sensor format: 2028x1520-SRGGB10_1X10/RAW - Selected CFE format: 2028x1520-PC1R/RAW
Network Firmware Upload: 100%|████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 3.78M/3.78M [00:04<00:00, 991kbytes/s]
.... as can be seen, the model loads up. I'm using a 100W usbC power supply. If I disconnect either of the cameras, the remaining one works fine.
How do i sucessfuly use 2 IMX500 cameras?
Thank you.