Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
Collapse
Brand Logo

ModalAI Forum

  1. ModalAI Support Forum
  2. VOXL Compute & Autopilot
  3. VOXL 2
  4. ov7251 tracking camera not being initialized with unsupported preview config

ov7251 tracking camera not being initialized with unsupported preview config

Scheduled Pinned Locked Moved VOXL 2
17 Posts 2 Posters 1.8k Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • B brianaustin

    @Alex-Kushleyev

    Thanks for your reply.

    I am using the M0135 dual image sensor adaptor board. Do I need to purchase the other cable? I cannot seem to find the cable show in the picture you sent on the website.

    Dual Camera board setup(https://drive.google.com/file/d/15cP1_LKGKbd6saLSGSQwPfdW5WPTKezO/view?usp=sharing)

    Thanks,
    Brian

    B Offline
    B Offline
    brianaustin
    Contributor
    wrote on last edited by
    #6

    @brianaustin

    I found the cable in your link on the website. It was under the cables section and not the image sensor section. Would the dual sensor board not be valid for this setup?

    Alex KushleyevA 1 Reply Last reply
    0
    • B brianaustin

      @brianaustin

      I found the cable in your link on the website. It was under the cables section and not the image sensor section. Would the dual sensor board not be valid for this setup?

      Alex KushleyevA Offline
      Alex KushleyevA Offline
      Alex Kushleyev
      ModalAI Team
      wrote on last edited by Alex Kushleyev
      #7

      @brianaustin, M0135 should work for this application. I just thought you were using a different Y flex cable plugged into J7.

      Also, it does look like you have the cameras plugged in correctly.

      Please follow my suggestion in previous post and swap ov7251 and imx214 places (taking note of pin 1 orientations) and see if ov7251 can be successfully probed in slot 3 and imx214 in slot 2.

      Alex

      B 1 Reply Last reply
      0
      • Alex KushleyevA Alex Kushleyev

        @brianaustin, M0135 should work for this application. I just thought you were using a different Y flex cable plugged into J7.

        Also, it does look like you have the cameras plugged in correctly.

        Please follow my suggestion in previous post and swap ov7251 and imx214 places (taking note of pin 1 orientations) and see if ov7251 can be successfully probed in slot 3 and imx214 in slot 2.

        Alex

        B Offline
        B Offline
        brianaustin
        Contributor
        wrote on last edited by brianaustin
        #8

        @Alex-Kushleyev

        I followed your instructions above and here is the output of the camera-server command

        voxl2:/$ voxl-camera-server -l
        existing instance of voxl-camera-server found, attempting to stop it
        DEBUG:   Attempting to open the hal module
        DEBUG:   SUCCESS: Camera module opened on attempt 0
        DEBUG:   ----------- Number of cameras: 2
        
        DEBUG:   Cam idx: 0, Cam slot: 0, Slave Address: 0x00E2, Sensor Id: 0x7750
        DEBUG:   Cam idx: 1, Cam slot: 1, Slave Address: 0x00E4, Sensor Id: 0x7750
        DEBUG:   Note: This list comes from the HAL module and may not be indicative
        DEBUG:   	of configurations that have full pipelines
        
        DEBUG:   Number of cameras: 2
        
        
        ====================================
        Stats for camera: 0
        
        ANDROID_SCALER_AVAILABLE_RAW_SIZES:
        These are likely supported by the sensor
         640 x  480
        
        ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS:
        These are NOT necessarily supported by the sensor
         640 x  480 HAL_PIXEL_FORMAT_YCbCr_420_888
         640 x  480 HAL_PIXEL_FORMAT_BLOB
         640 x  400 HAL_PIXEL_FORMAT_YCbCr_420_888
         640 x  400 HAL_PIXEL_FORMAT_BLOB
         640 x  360 HAL_PIXEL_FORMAT_YCbCr_420_888
         640 x  360 HAL_PIXEL_FORMAT_BLOB
         352 x  288 HAL_PIXEL_FORMAT_YCbCr_420_888
         352 x  288 HAL_PIXEL_FORMAT_BLOB
         320 x  240 HAL_PIXEL_FORMAT_YCbCr_420_888
         320 x  240 HAL_PIXEL_FORMAT_BLOB
         240 x  320 HAL_PIXEL_FORMAT_YCbCr_420_888
         240 x  320 HAL_PIXEL_FORMAT_BLOB
         176 x  144 HAL_PIXEL_FORMAT_YCbCr_420_888
         176 x  144 HAL_PIXEL_FORMAT_BLOB
         640 x  480 HAL_PIXEL_FORMAT_RAW10
         640 x  480 HAL_PIXEL_FORMAT_RAW12
         640 x  480 HAL_PIXEL_FORMAT_RAW16
         640 x  480 HAL_PIXEL_FORMAT_RAW_OPAQUE
        
        ANDROID_SENSOR_INFO_SENSITIVITY_RANGE
        	min = 54
        	max = 3451
        
        ANDROID_SENSOR_MAX_ANALOG_SENSITIVITY
        	3451
        
        ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE
        	min = 0ns
        	max = 1266732525ns
        
        
        ====================================
        Stats for camera: 1
        
        ANDROID_SCALER_AVAILABLE_RAW_SIZES:
        These are likely supported by the sensor
         640 x  480
        
        ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS:
        These are NOT necessarily supported by the sensor
         640 x  480 HAL_PIXEL_FORMAT_YCbCr_420_888
         640 x  480 HAL_PIXEL_FORMAT_BLOB
         640 x  400 HAL_PIXEL_FORMAT_YCbCr_420_888
         640 x  400 HAL_PIXEL_FORMAT_BLOB
         640 x  360 HAL_PIXEL_FORMAT_YCbCr_420_888
         640 x  360 HAL_PIXEL_FORMAT_BLOB
         352 x  288 HAL_PIXEL_FORMAT_YCbCr_420_888
         352 x  288 HAL_PIXEL_FORMAT_BLOB
         320 x  240 HAL_PIXEL_FORMAT_YCbCr_420_888
         320 x  240 HAL_PIXEL_FORMAT_BLOB
         240 x  320 HAL_PIXEL_FORMAT_YCbCr_420_888
         240 x  320 HAL_PIXEL_FORMAT_BLOB
         176 x  144 HAL_PIXEL_FORMAT_YCbCr_420_888
         176 x  144 HAL_PIXEL_FORMAT_BLOB
         640 x  480 HAL_PIXEL_FORMAT_RAW10
         640 x  480 HAL_PIXEL_FORMAT_RAW12
         640 x  480 HAL_PIXEL_FORMAT_RAW16
         640 x  480 HAL_PIXEL_FORMAT_RAW_OPAQUE
        
        ANDROID_SENSOR_INFO_SENSITIVITY_RANGE
        	min = 54
        	max = 3451
        
        ANDROID_SENSOR_MAX_ANALOG_SENSITIVITY
        	3451
        
        ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE
        	min = 0ns
        	max = 1266732525ns
        
        ====================================
        Number of cameras detected: 2
        ====================================
        
        

        the portal only shows Mulit-View but there are no streams shown and only a checkbox that I can select but no images. The Stereo Sensor does not work now either

        It looks like some I2C bus errors in dmesg

        [   16.550375] CAM_ERR: CAM-CCI: cam_cci_irq: 238 Base:        pK-error, M0_Q1 NACK ERROR: 0x10000000
        [   16.550450] CAM_ERR: CAM-CCI: cam_cci_read: 1329 ERROR with Slave 0x20:
        [   16.550460] CAM_ERR: CAM-CCI: cam_cci_read_bytes: 1613 failed to read rc:-22
        [   16.550467] CAM_ERR: CAM-SENSOR: cam_cci_i2c_read: 35 rc = -22
        [   16.550476] CAM_WARN: CAM-SENSOR: cam_sensor_match_id: 707 read id: 0x0 expected id 0x214:
        [   16.550600] qcom,camera ac50000.qcom,cci:qcom,cam-sensor2: Dropping the link to regulator.79
        [   16.554341] qcom,camera ac50000.qcom,cci:qcom,cam-sensor2: Dropping the link to regulator.60
        [   16.554478] qcom,camera ac50000.qcom,cci:qcom,cam-sensor2: Dropping the link to regulator.55
        [   16.554597] qcom,camera ac50000.qcom,cci:qcom,cam-sensor2: Dropping the link to regulator.59
        [   16.583851] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Linked as a consumer to regulator.59
        [   16.586402] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Linked as a consumer to regulator.55
        [   16.588680] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Linked as a consumer to regulator.60
        [   16.588811] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Linked as a consumer to regulator.79
        [   16.613251] CAM_INFO: CAM-SENSOR: cam_sensor_set_alt_id: 731 [Applying Alternative Address] : Sensor Index   : 391368884
        [   16.613261] CAM_INFO: CAM-SENSOR: cam_sensor_set_alt_id: 732 [Applying Alternative Address] : Slave Address  : 0xE2
        [   16.613269] CAM_INFO: CAM-SENSOR: cam_sensor_set_alt_id: 733 [Applying Alternative Address] : Slave sensor id: 0x7750
        [   16.613276] CAM_INFO: CAM-SENSOR: cam_sensor_set_alt_id: 734 [Applying Alternative Address] : cci_client sid : 0x71
        [   16.613447] CAM_ERR: CAM-CCI: cam_cci_irq: 258 Base:        pK-error, M1_Q0 NACK ERROR: 0x20000000
        [   16.613507] CAM_ERR: CAM-CCI: cam_cci_wait: 270 failed rc -22
        [   16.613514] CAM_ERR: CAM-CCI: cam_cci_transfer_end: 345 failed rc -22
        [   16.613522] CAM_ERR: CAM-CCI: cam_cci_data_queue: 870 Slave: 0xe0 failed rc -22
        [   16.613529] CAM_ERR: CAM-CCI: cam_cci_i2c_write: 1450 failed rc: -22
        [   16.613536] CAM_ERR: CAM-SENSOR: cam_cci_i2c_write_table_cmd: 123 Failed rc = -22
        [   16.613545] CAM_ERR: CAM-SENSOR: cam_sensor_set_alt_id: 768 [Applying Alternative Address] : Probe : camera_io_dev_write failed: rc=-22
        [   16.613699] CAM_ERR: CAM-CCI: cam_cci_irq: 264 Base:        pK-error, M1_Q1 NACK ERROR: 0x40000000
        [   16.613881] CAM_ERR: CAM-CCI: cam_cci_read: 1329 ERROR with Slave 0xe0:
        [   16.613892] CAM_ERR: CAM-CCI: cam_cci_read_bytes: 1613 failed to read rc:-22
        [   16.613899] CAM_ERR: CAM-SENSOR: cam_cci_i2c_read: 35 rc = -22
        [   16.613908] CAM_WARN: CAM-SENSOR: cam_sensor_match_id: 707 read id: 0x0 expected id 0x7750:
        [   16.614039] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Dropping the link to regulator.79
        [   16.627984] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Dropping the link to regulator.60
        [   16.628331] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Dropping the link to regulator.55
        [   16.628548] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Dropping the link to regulator.59
        [   16.686142] CAM_WARN: CAM-CRM: cam_req_mgr_close: 160 release invoked associated userspace process has died
        
        Alex KushleyevA 1 Reply Last reply
        0
        • B brianaustin

          @Alex-Kushleyev

          I followed your instructions above and here is the output of the camera-server command

          voxl2:/$ voxl-camera-server -l
          existing instance of voxl-camera-server found, attempting to stop it
          DEBUG:   Attempting to open the hal module
          DEBUG:   SUCCESS: Camera module opened on attempt 0
          DEBUG:   ----------- Number of cameras: 2
          
          DEBUG:   Cam idx: 0, Cam slot: 0, Slave Address: 0x00E2, Sensor Id: 0x7750
          DEBUG:   Cam idx: 1, Cam slot: 1, Slave Address: 0x00E4, Sensor Id: 0x7750
          DEBUG:   Note: This list comes from the HAL module and may not be indicative
          DEBUG:   	of configurations that have full pipelines
          
          DEBUG:   Number of cameras: 2
          
          
          ====================================
          Stats for camera: 0
          
          ANDROID_SCALER_AVAILABLE_RAW_SIZES:
          These are likely supported by the sensor
           640 x  480
          
          ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS:
          These are NOT necessarily supported by the sensor
           640 x  480 HAL_PIXEL_FORMAT_YCbCr_420_888
           640 x  480 HAL_PIXEL_FORMAT_BLOB
           640 x  400 HAL_PIXEL_FORMAT_YCbCr_420_888
           640 x  400 HAL_PIXEL_FORMAT_BLOB
           640 x  360 HAL_PIXEL_FORMAT_YCbCr_420_888
           640 x  360 HAL_PIXEL_FORMAT_BLOB
           352 x  288 HAL_PIXEL_FORMAT_YCbCr_420_888
           352 x  288 HAL_PIXEL_FORMAT_BLOB
           320 x  240 HAL_PIXEL_FORMAT_YCbCr_420_888
           320 x  240 HAL_PIXEL_FORMAT_BLOB
           240 x  320 HAL_PIXEL_FORMAT_YCbCr_420_888
           240 x  320 HAL_PIXEL_FORMAT_BLOB
           176 x  144 HAL_PIXEL_FORMAT_YCbCr_420_888
           176 x  144 HAL_PIXEL_FORMAT_BLOB
           640 x  480 HAL_PIXEL_FORMAT_RAW10
           640 x  480 HAL_PIXEL_FORMAT_RAW12
           640 x  480 HAL_PIXEL_FORMAT_RAW16
           640 x  480 HAL_PIXEL_FORMAT_RAW_OPAQUE
          
          ANDROID_SENSOR_INFO_SENSITIVITY_RANGE
          	min = 54
          	max = 3451
          
          ANDROID_SENSOR_MAX_ANALOG_SENSITIVITY
          	3451
          
          ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE
          	min = 0ns
          	max = 1266732525ns
          
          
          ====================================
          Stats for camera: 1
          
          ANDROID_SCALER_AVAILABLE_RAW_SIZES:
          These are likely supported by the sensor
           640 x  480
          
          ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS:
          These are NOT necessarily supported by the sensor
           640 x  480 HAL_PIXEL_FORMAT_YCbCr_420_888
           640 x  480 HAL_PIXEL_FORMAT_BLOB
           640 x  400 HAL_PIXEL_FORMAT_YCbCr_420_888
           640 x  400 HAL_PIXEL_FORMAT_BLOB
           640 x  360 HAL_PIXEL_FORMAT_YCbCr_420_888
           640 x  360 HAL_PIXEL_FORMAT_BLOB
           352 x  288 HAL_PIXEL_FORMAT_YCbCr_420_888
           352 x  288 HAL_PIXEL_FORMAT_BLOB
           320 x  240 HAL_PIXEL_FORMAT_YCbCr_420_888
           320 x  240 HAL_PIXEL_FORMAT_BLOB
           240 x  320 HAL_PIXEL_FORMAT_YCbCr_420_888
           240 x  320 HAL_PIXEL_FORMAT_BLOB
           176 x  144 HAL_PIXEL_FORMAT_YCbCr_420_888
           176 x  144 HAL_PIXEL_FORMAT_BLOB
           640 x  480 HAL_PIXEL_FORMAT_RAW10
           640 x  480 HAL_PIXEL_FORMAT_RAW12
           640 x  480 HAL_PIXEL_FORMAT_RAW16
           640 x  480 HAL_PIXEL_FORMAT_RAW_OPAQUE
          
          ANDROID_SENSOR_INFO_SENSITIVITY_RANGE
          	min = 54
          	max = 3451
          
          ANDROID_SENSOR_MAX_ANALOG_SENSITIVITY
          	3451
          
          ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE
          	min = 0ns
          	max = 1266732525ns
          
          ====================================
          Number of cameras detected: 2
          ====================================
          
          

          the portal only shows Mulit-View but there are no streams shown and only a checkbox that I can select but no images. The Stereo Sensor does not work now either

          It looks like some I2C bus errors in dmesg

          [   16.550375] CAM_ERR: CAM-CCI: cam_cci_irq: 238 Base:        pK-error, M0_Q1 NACK ERROR: 0x10000000
          [   16.550450] CAM_ERR: CAM-CCI: cam_cci_read: 1329 ERROR with Slave 0x20:
          [   16.550460] CAM_ERR: CAM-CCI: cam_cci_read_bytes: 1613 failed to read rc:-22
          [   16.550467] CAM_ERR: CAM-SENSOR: cam_cci_i2c_read: 35 rc = -22
          [   16.550476] CAM_WARN: CAM-SENSOR: cam_sensor_match_id: 707 read id: 0x0 expected id 0x214:
          [   16.550600] qcom,camera ac50000.qcom,cci:qcom,cam-sensor2: Dropping the link to regulator.79
          [   16.554341] qcom,camera ac50000.qcom,cci:qcom,cam-sensor2: Dropping the link to regulator.60
          [   16.554478] qcom,camera ac50000.qcom,cci:qcom,cam-sensor2: Dropping the link to regulator.55
          [   16.554597] qcom,camera ac50000.qcom,cci:qcom,cam-sensor2: Dropping the link to regulator.59
          [   16.583851] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Linked as a consumer to regulator.59
          [   16.586402] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Linked as a consumer to regulator.55
          [   16.588680] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Linked as a consumer to regulator.60
          [   16.588811] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Linked as a consumer to regulator.79
          [   16.613251] CAM_INFO: CAM-SENSOR: cam_sensor_set_alt_id: 731 [Applying Alternative Address] : Sensor Index   : 391368884
          [   16.613261] CAM_INFO: CAM-SENSOR: cam_sensor_set_alt_id: 732 [Applying Alternative Address] : Slave Address  : 0xE2
          [   16.613269] CAM_INFO: CAM-SENSOR: cam_sensor_set_alt_id: 733 [Applying Alternative Address] : Slave sensor id: 0x7750
          [   16.613276] CAM_INFO: CAM-SENSOR: cam_sensor_set_alt_id: 734 [Applying Alternative Address] : cci_client sid : 0x71
          [   16.613447] CAM_ERR: CAM-CCI: cam_cci_irq: 258 Base:        pK-error, M1_Q0 NACK ERROR: 0x20000000
          [   16.613507] CAM_ERR: CAM-CCI: cam_cci_wait: 270 failed rc -22
          [   16.613514] CAM_ERR: CAM-CCI: cam_cci_transfer_end: 345 failed rc -22
          [   16.613522] CAM_ERR: CAM-CCI: cam_cci_data_queue: 870 Slave: 0xe0 failed rc -22
          [   16.613529] CAM_ERR: CAM-CCI: cam_cci_i2c_write: 1450 failed rc: -22
          [   16.613536] CAM_ERR: CAM-SENSOR: cam_cci_i2c_write_table_cmd: 123 Failed rc = -22
          [   16.613545] CAM_ERR: CAM-SENSOR: cam_sensor_set_alt_id: 768 [Applying Alternative Address] : Probe : camera_io_dev_write failed: rc=-22
          [   16.613699] CAM_ERR: CAM-CCI: cam_cci_irq: 264 Base:        pK-error, M1_Q1 NACK ERROR: 0x40000000
          [   16.613881] CAM_ERR: CAM-CCI: cam_cci_read: 1329 ERROR with Slave 0xe0:
          [   16.613892] CAM_ERR: CAM-CCI: cam_cci_read_bytes: 1613 failed to read rc:-22
          [   16.613899] CAM_ERR: CAM-SENSOR: cam_cci_i2c_read: 35 rc = -22
          [   16.613908] CAM_WARN: CAM-SENSOR: cam_sensor_match_id: 707 read id: 0x0 expected id 0x7750:
          [   16.614039] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Dropping the link to regulator.79
          [   16.627984] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Dropping the link to regulator.60
          [   16.628331] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Dropping the link to regulator.55
          [   16.628548] qcom,camera ac50000.qcom,cci:qcom,cam-sensor3: Dropping the link to regulator.59
          [   16.686142] CAM_WARN: CAM-CRM: cam_req_mgr_close: 160 release invoked associated userspace process has died
          
          Alex KushleyevA Offline
          Alex KushleyevA Offline
          Alex Kushleyev
          ModalAI Team
          wrote on last edited by
          #9

          @brianaustin , thank you for running the test. The results are not conclusive. Let's try one more thing.

          • Please list sensormodule files of /usr/lib/camera right now, just to double check:
          ls /usr/lib/camera/*sensormodule*
          

          at this point you should have the following, which will support either configuration of ov7251 and imx214 (either slot 2 or 3). It is OK that there are more sensormodule files than cameras - for the ones that are not valid for the given configuration, the camera pipeline will try to probe the camera, will not find it, and will move on to the next sensormodlue.

          com.qti.sensormodule.imx214_2.bin
          com.qti.sensormodule.imx214_3.bin
          com.qti.sensormodule.ov7251_2.bin
          com.qti.sensormodule.ov7251_3.bin
          com.qti.sensormodule.ov7251_combo_0.bin
          com.qti.sensormodule.ov7251_combo_1.bin
          
          • disconnect OV7251 completely and test camera scan again (double check IMX214 is plugged in correctly, with flex cable pointing towards the center of the M0135 board). please let me know if IMX214 is detected
          • keep OV7251 disconnected and plug IMX214 back into slot 3 and do the scan again to make sure IMX214 is detected in the slot 3, which was working before.

          If you have another M0135 or ov7251 (fisheye) to try, you could do that to help figure what is not working properly, M0135 or the ov7251 camera.

          Alex

          B 1 Reply Last reply
          0
          • Alex KushleyevA Alex Kushleyev

            @brianaustin , thank you for running the test. The results are not conclusive. Let's try one more thing.

            • Please list sensormodule files of /usr/lib/camera right now, just to double check:
            ls /usr/lib/camera/*sensormodule*
            

            at this point you should have the following, which will support either configuration of ov7251 and imx214 (either slot 2 or 3). It is OK that there are more sensormodule files than cameras - for the ones that are not valid for the given configuration, the camera pipeline will try to probe the camera, will not find it, and will move on to the next sensormodlue.

            com.qti.sensormodule.imx214_2.bin
            com.qti.sensormodule.imx214_3.bin
            com.qti.sensormodule.ov7251_2.bin
            com.qti.sensormodule.ov7251_3.bin
            com.qti.sensormodule.ov7251_combo_0.bin
            com.qti.sensormodule.ov7251_combo_1.bin
            
            • disconnect OV7251 completely and test camera scan again (double check IMX214 is plugged in correctly, with flex cable pointing towards the center of the M0135 board). please let me know if IMX214 is detected
            • keep OV7251 disconnected and plug IMX214 back into slot 3 and do the scan again to make sure IMX214 is detected in the slot 3, which was working before.

            If you have another M0135 or ov7251 (fisheye) to try, you could do that to help figure what is not working properly, M0135 or the ov7251 camera.

            Alex

            B Offline
            B Offline
            brianaustin
            Contributor
            wrote on last edited by
            #10

            @Alex-Kushleyev said in ov7251 tracking camera not being initialized with unsupported preview config:

            ls /usr/lib/camera/sensormodule

            voxl2:/$ ls -l /usr/lib/camera/*sensormodule*
            -rw-r--r-- 1 root root 149272 Mar  4 14:48 /usr/lib/camera/com.qti.sensormodule.imx214_2.bin
            -rw-r--r-- 1 root root 149272 Feb 27 21:14 /usr/lib/camera/com.qti.sensormodule.imx214_3.bin
            -rw-r--r-- 1 root root 142472 Feb 27 21:14 /usr/lib/camera/com.qti.sensormodule.ov7251_2.bin
            -rw-r--r-- 1 root root 142472 Mar  4 14:49 /usr/lib/camera/com.qti.sensormodule.ov7251_3.bin
            -rw-r--r-- 1 root root  56280 Feb 27 21:14 /usr/lib/camera/com.qti.sensormodule.ov7251_combo_0.bin
            -rw-r--r-- 1 root root  56280 Feb 27 21:14 /usr/lib/camera/com.qti.sensormodule.ov7251_combo_1.bin
            
            

            "disconnect OV7251 completely and test camera scan again (double check IMX214 is plugged in correctly, with flex cable pointing towards the center of the M0135 board). please let me know if IMX214 is detected"
            Not detected

            "keep OV7251 disconnected and plug IMX214 back into slot 3 and do the scan again to make sure IMX214 is detected in the slot 3, which was working before."
            Detected

            I don't have any other sensors to test out. Should I order the other sensor cable referenced in the picture you posted earlier?

            Alex KushleyevA 1 Reply Last reply
            0
            • B brianaustin

              @Alex-Kushleyev said in ov7251 tracking camera not being initialized with unsupported preview config:

              ls /usr/lib/camera/sensormodule

              voxl2:/$ ls -l /usr/lib/camera/*sensormodule*
              -rw-r--r-- 1 root root 149272 Mar  4 14:48 /usr/lib/camera/com.qti.sensormodule.imx214_2.bin
              -rw-r--r-- 1 root root 149272 Feb 27 21:14 /usr/lib/camera/com.qti.sensormodule.imx214_3.bin
              -rw-r--r-- 1 root root 142472 Feb 27 21:14 /usr/lib/camera/com.qti.sensormodule.ov7251_2.bin
              -rw-r--r-- 1 root root 142472 Mar  4 14:49 /usr/lib/camera/com.qti.sensormodule.ov7251_3.bin
              -rw-r--r-- 1 root root  56280 Feb 27 21:14 /usr/lib/camera/com.qti.sensormodule.ov7251_combo_0.bin
              -rw-r--r-- 1 root root  56280 Feb 27 21:14 /usr/lib/camera/com.qti.sensormodule.ov7251_combo_1.bin
              
              

              "disconnect OV7251 completely and test camera scan again (double check IMX214 is plugged in correctly, with flex cable pointing towards the center of the M0135 board). please let me know if IMX214 is detected"
              Not detected

              "keep OV7251 disconnected and plug IMX214 back into slot 3 and do the scan again to make sure IMX214 is detected in the slot 3, which was working before."
              Detected

              I don't have any other sensors to test out. Should I order the other sensor cable referenced in the picture you posted earlier?

              Alex KushleyevA Offline
              Alex KushleyevA Offline
              Alex Kushleyev
              ModalAI Team
              wrote on last edited by
              #11

              @brianaustin ,

              Thanks for running those tests. Since plugging in IMX214 into slot 2 (J7L) did not result in successful detection of the camera, it is likely that M0135 adapter is faulty.

              However, since IMX214 does work in slot 3 (J7U), my expectation was that ov7251 would work in slot 3 as well, but that was not the case.

              Another thing to try is to see if the single OV7251 camera can be detected in slot 0:

              • unplug the stereo flex from J6 and just leave the small interposer M0076 in J6
              • connect the single tracking camera ov7251 where the stereo pair was connected. Note that when tracking ov7251 is correctly plugged into VOXL2 J6 via M0076, the tracking camera flex will point away from the voxl2 board, see image below
              • you dont need to change any sensormodules because you already had the stereo set up and for detection purposes, the combo driver for ov7251 will be able to detect the camera.
              • since we know that M0076 is working (stereo is working), this test will tell us if the tracking ov7251 is working or not.

              voxl2-ov7251-m0076-j6.jpg

              voxl2:/$ voxl-camera-server -l
              DEBUG:   Attempting to open the hal module
              DEBUG:   SUCCESS: Camera module opened on attempt 0
              DEBUG:   ----------- Number of cameras: 1
              
              DEBUG:   Cam idx: 0, Cam slot: 0, Slave Address: 0x00E2, Sensor Id: 0x7750
              
              B 1 Reply Last reply
              0
              • Alex KushleyevA Alex Kushleyev

                @brianaustin ,

                Thanks for running those tests. Since plugging in IMX214 into slot 2 (J7L) did not result in successful detection of the camera, it is likely that M0135 adapter is faulty.

                However, since IMX214 does work in slot 3 (J7U), my expectation was that ov7251 would work in slot 3 as well, but that was not the case.

                Another thing to try is to see if the single OV7251 camera can be detected in slot 0:

                • unplug the stereo flex from J6 and just leave the small interposer M0076 in J6
                • connect the single tracking camera ov7251 where the stereo pair was connected. Note that when tracking ov7251 is correctly plugged into VOXL2 J6 via M0076, the tracking camera flex will point away from the voxl2 board, see image below
                • you dont need to change any sensormodules because you already had the stereo set up and for detection purposes, the combo driver for ov7251 will be able to detect the camera.
                • since we know that M0076 is working (stereo is working), this test will tell us if the tracking ov7251 is working or not.

                voxl2-ov7251-m0076-j6.jpg

                voxl2:/$ voxl-camera-server -l
                DEBUG:   Attempting to open the hal module
                DEBUG:   SUCCESS: Camera module opened on attempt 0
                DEBUG:   ----------- Number of cameras: 1
                
                DEBUG:   Cam idx: 0, Cam slot: 0, Slave Address: 0x00E2, Sensor Id: 0x7750
                
                B Offline
                B Offline
                brianaustin
                Contributor
                wrote on last edited by
                #12

                @Alex-Kushleyev

                Thanks! That worked

                voxl2:/$ voxl-camera-server -l
                DEBUG:   Attempting to open the hal module
                DEBUG:   SUCCESS: Camera module opened on attempt 0
                DEBUG:   ----------- Number of cameras: 1
                
                DEBUG:   Cam idx: 0, Cam slot: 0, Slave Address: 0x00E2, Sensor Id: 0x7750
                DEBUG:   Note: This list comes from the HAL module and may not be indicative
                DEBUG:   	of configurations that have full pipelines
                
                DEBUG:   Number of cameras: 1
                
                
                ====================================
                Stats for camera: 0
                
                ANDROID_SCALER_AVAILABLE_RAW_SIZES:
                These are likely supported by the sensor
                 640 x  480
                
                ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS:
                These are NOT necessarily supported by the sensor
                 640 x  480 HAL_PIXEL_FORMAT_YCbCr_420_888
                 640 x  480 HAL_PIXEL_FORMAT_BLOB
                 640 x  400 HAL_PIXEL_FORMAT_YCbCr_420_888
                 640 x  400 HAL_PIXEL_FORMAT_BLOB
                 640 x  360 HAL_PIXEL_FORMAT_YCbCr_420_888
                 640 x  360 HAL_PIXEL_FORMAT_BLOB
                 352 x  288 HAL_PIXEL_FORMAT_YCbCr_420_888
                 352 x  288 HAL_PIXEL_FORMAT_BLOB
                 320 x  240 HAL_PIXEL_FORMAT_YCbCr_420_888
                 320 x  240 HAL_PIXEL_FORMAT_BLOB
                 240 x  320 HAL_PIXEL_FORMAT_YCbCr_420_888
                 240 x  320 HAL_PIXEL_FORMAT_BLOB
                 176 x  144 HAL_PIXEL_FORMAT_YCbCr_420_888
                 176 x  144 HAL_PIXEL_FORMAT_BLOB
                 640 x  480 HAL_PIXEL_FORMAT_RAW10
                 640 x  480 HAL_PIXEL_FORMAT_RAW12
                 640 x  480 HAL_PIXEL_FORMAT_RAW16
                 640 x  480 HAL_PIXEL_FORMAT_RAW_OPAQUE
                
                ANDROID_SENSOR_INFO_SENSITIVITY_RANGE
                	min = 54
                	max = 3451
                
                ANDROID_SENSOR_MAX_ANALOG_SENSITIVITY
                	3451
                
                ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE
                	min = 0ns
                	max = 1266732525ns
                
                ====================================
                Number of cameras detected: 1
                ====================================
                
                

                Looks like I need to get a new dual connector or the other cable yeah?

                Alex KushleyevA 1 Reply Last reply
                0
                • B brianaustin

                  @Alex-Kushleyev

                  Thanks! That worked

                  voxl2:/$ voxl-camera-server -l
                  DEBUG:   Attempting to open the hal module
                  DEBUG:   SUCCESS: Camera module opened on attempt 0
                  DEBUG:   ----------- Number of cameras: 1
                  
                  DEBUG:   Cam idx: 0, Cam slot: 0, Slave Address: 0x00E2, Sensor Id: 0x7750
                  DEBUG:   Note: This list comes from the HAL module and may not be indicative
                  DEBUG:   	of configurations that have full pipelines
                  
                  DEBUG:   Number of cameras: 1
                  
                  
                  ====================================
                  Stats for camera: 0
                  
                  ANDROID_SCALER_AVAILABLE_RAW_SIZES:
                  These are likely supported by the sensor
                   640 x  480
                  
                  ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS:
                  These are NOT necessarily supported by the sensor
                   640 x  480 HAL_PIXEL_FORMAT_YCbCr_420_888
                   640 x  480 HAL_PIXEL_FORMAT_BLOB
                   640 x  400 HAL_PIXEL_FORMAT_YCbCr_420_888
                   640 x  400 HAL_PIXEL_FORMAT_BLOB
                   640 x  360 HAL_PIXEL_FORMAT_YCbCr_420_888
                   640 x  360 HAL_PIXEL_FORMAT_BLOB
                   352 x  288 HAL_PIXEL_FORMAT_YCbCr_420_888
                   352 x  288 HAL_PIXEL_FORMAT_BLOB
                   320 x  240 HAL_PIXEL_FORMAT_YCbCr_420_888
                   320 x  240 HAL_PIXEL_FORMAT_BLOB
                   240 x  320 HAL_PIXEL_FORMAT_YCbCr_420_888
                   240 x  320 HAL_PIXEL_FORMAT_BLOB
                   176 x  144 HAL_PIXEL_FORMAT_YCbCr_420_888
                   176 x  144 HAL_PIXEL_FORMAT_BLOB
                   640 x  480 HAL_PIXEL_FORMAT_RAW10
                   640 x  480 HAL_PIXEL_FORMAT_RAW12
                   640 x  480 HAL_PIXEL_FORMAT_RAW16
                   640 x  480 HAL_PIXEL_FORMAT_RAW_OPAQUE
                  
                  ANDROID_SENSOR_INFO_SENSITIVITY_RANGE
                  	min = 54
                  	max = 3451
                  
                  ANDROID_SENSOR_MAX_ANALOG_SENSITIVITY
                  	3451
                  
                  ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE
                  	min = 0ns
                  	max = 1266732525ns
                  
                  ====================================
                  Number of cameras detected: 1
                  ====================================
                  
                  

                  Looks like I need to get a new dual connector or the other cable yeah?

                  Alex KushleyevA Offline
                  Alex KushleyevA Offline
                  Alex Kushleyev
                  ModalAI Team
                  wrote on last edited by Alex Kushleyev
                  #13

                  @brianaustin , great!

                  Now, one more test 🙂

                  Take the M0076 with the tracking OV7251 from J6 and plug into J7. You already have the sensormodule for slot 2 in place for J7L, so detection should work. Hopefully this works and this would confirm that J7L camera path is working.

                  BTW you should be able to actually test the feed from the camera using the M0076 connection to J6 and J7 (just turn off other cameras in config, or maybe even leaving them enabled will work because camera server will just skip the undetected cameras).

                  Then you would need a new M0135 interposer (you can submit RMA request at https://www.modalai.com/rma)

                  Alex

                  B 1 Reply Last reply
                  0
                  • Alex KushleyevA Alex Kushleyev

                    @brianaustin , great!

                    Now, one more test 🙂

                    Take the M0076 with the tracking OV7251 from J6 and plug into J7. You already have the sensormodule for slot 2 in place for J7L, so detection should work. Hopefully this works and this would confirm that J7L camera path is working.

                    BTW you should be able to actually test the feed from the camera using the M0076 connection to J6 and J7 (just turn off other cameras in config, or maybe even leaving them enabled will work because camera server will just skip the undetected cameras).

                    Then you would need a new M0135 interposer (you can submit RMA request at https://www.modalai.com/rma)

                    Alex

                    B Offline
                    B Offline
                    brianaustin
                    Contributor
                    wrote on last edited by
                    #14

                    @Alex-Kushleyev

                    voxl2:/$ voxl-camera-server -l
                    existing instance of voxl-camera-server found, attempting to stop it
                    DEBUG:   Attempting to open the hal module
                    DEBUG:   SUCCESS: Camera module opened on attempt 0
                    DEBUG:   ----------- Number of cameras: 1
                    
                    DEBUG:   Cam idx: 0, Cam slot: 2, Slave Address: 0x00E2, Sensor Id: 0x7750
                    DEBUG:   Note: This list comes from the HAL module and may not be indicative
                    DEBUG:   	of configurations that have full pipelines
                    
                    DEBUG:   Number of cameras: 1
                    
                    
                    ====================================
                    Stats for camera: 0
                    
                    ANDROID_SCALER_AVAILABLE_RAW_SIZES:
                    These are likely supported by the sensor
                     640 x  480
                     640 x  480
                     640 x  480
                    
                    ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS:
                    These are NOT necessarily supported by the sensor
                     640 x  480 HAL_PIXEL_FORMAT_YCbCr_420_888
                     640 x  480 HAL_PIXEL_FORMAT_BLOB
                     640 x  400 HAL_PIXEL_FORMAT_YCbCr_420_888
                     640 x  400 HAL_PIXEL_FORMAT_BLOB
                     640 x  360 HAL_PIXEL_FORMAT_YCbCr_420_888
                     640 x  360 HAL_PIXEL_FORMAT_BLOB
                     352 x  288 HAL_PIXEL_FORMAT_YCbCr_420_888
                     352 x  288 HAL_PIXEL_FORMAT_BLOB
                     320 x  240 HAL_PIXEL_FORMAT_YCbCr_420_888
                     320 x  240 HAL_PIXEL_FORMAT_BLOB
                     240 x  320 HAL_PIXEL_FORMAT_YCbCr_420_888
                     240 x  320 HAL_PIXEL_FORMAT_BLOB
                     176 x  144 HAL_PIXEL_FORMAT_YCbCr_420_888
                     176 x  144 HAL_PIXEL_FORMAT_BLOB
                     640 x  480 HAL_PIXEL_FORMAT_RAW10
                     640 x  480 HAL_PIXEL_FORMAT_RAW12
                     640 x  480 HAL_PIXEL_FORMAT_RAW16
                     640 x  480 HAL_PIXEL_FORMAT_RAW_OPAQUE
                    
                    ANDROID_SENSOR_INFO_SENSITIVITY_RANGE
                    	min = 54
                    	max = 3451
                    
                    ANDROID_SENSOR_MAX_ANALOG_SENSITIVITY
                    	3451
                    
                    ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE
                    	min = 0ns
                    	max = 1266732525ns
                    
                    ====================================
                    Number of cameras detected: 1
                    ====================================
                    
                    

                    I reconfigured and the tracking camera works! that was a first and thank you for that!

                    OK, I guess NOW we have determined the dual sensor connector board is defective?

                    Alex KushleyevA 1 Reply Last reply
                    0
                    • B brianaustin

                      @Alex-Kushleyev

                      voxl2:/$ voxl-camera-server -l
                      existing instance of voxl-camera-server found, attempting to stop it
                      DEBUG:   Attempting to open the hal module
                      DEBUG:   SUCCESS: Camera module opened on attempt 0
                      DEBUG:   ----------- Number of cameras: 1
                      
                      DEBUG:   Cam idx: 0, Cam slot: 2, Slave Address: 0x00E2, Sensor Id: 0x7750
                      DEBUG:   Note: This list comes from the HAL module and may not be indicative
                      DEBUG:   	of configurations that have full pipelines
                      
                      DEBUG:   Number of cameras: 1
                      
                      
                      ====================================
                      Stats for camera: 0
                      
                      ANDROID_SCALER_AVAILABLE_RAW_SIZES:
                      These are likely supported by the sensor
                       640 x  480
                       640 x  480
                       640 x  480
                      
                      ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS:
                      These are NOT necessarily supported by the sensor
                       640 x  480 HAL_PIXEL_FORMAT_YCbCr_420_888
                       640 x  480 HAL_PIXEL_FORMAT_BLOB
                       640 x  400 HAL_PIXEL_FORMAT_YCbCr_420_888
                       640 x  400 HAL_PIXEL_FORMAT_BLOB
                       640 x  360 HAL_PIXEL_FORMAT_YCbCr_420_888
                       640 x  360 HAL_PIXEL_FORMAT_BLOB
                       352 x  288 HAL_PIXEL_FORMAT_YCbCr_420_888
                       352 x  288 HAL_PIXEL_FORMAT_BLOB
                       320 x  240 HAL_PIXEL_FORMAT_YCbCr_420_888
                       320 x  240 HAL_PIXEL_FORMAT_BLOB
                       240 x  320 HAL_PIXEL_FORMAT_YCbCr_420_888
                       240 x  320 HAL_PIXEL_FORMAT_BLOB
                       176 x  144 HAL_PIXEL_FORMAT_YCbCr_420_888
                       176 x  144 HAL_PIXEL_FORMAT_BLOB
                       640 x  480 HAL_PIXEL_FORMAT_RAW10
                       640 x  480 HAL_PIXEL_FORMAT_RAW12
                       640 x  480 HAL_PIXEL_FORMAT_RAW16
                       640 x  480 HAL_PIXEL_FORMAT_RAW_OPAQUE
                      
                      ANDROID_SENSOR_INFO_SENSITIVITY_RANGE
                      	min = 54
                      	max = 3451
                      
                      ANDROID_SENSOR_MAX_ANALOG_SENSITIVITY
                      	3451
                      
                      ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE
                      	min = 0ns
                      	max = 1266732525ns
                      
                      ====================================
                      Number of cameras detected: 1
                      ====================================
                      
                      

                      I reconfigured and the tracking camera works! that was a first and thank you for that!

                      OK, I guess NOW we have determined the dual sensor connector board is defective?

                      Alex KushleyevA Offline
                      Alex KushleyevA Offline
                      Alex Kushleyev
                      ModalAI Team
                      wrote on last edited by Alex Kushleyev
                      #15

                      @brianaustin , YES!

                      Please submit and RMA form to request a replacement M0135 board. If you need a replacement more urgently, you way want to buy another M0135 and you will have another one as a back up (and future expansion).

                      Alex

                      B 1 Reply Last reply
                      0
                      • Alex KushleyevA Alex Kushleyev

                        @brianaustin , YES!

                        Please submit and RMA form to request a replacement M0135 board. If you need a replacement more urgently, you way want to buy another M0135 and you will have another one as a back up (and future expansion).

                        Alex

                        B Offline
                        B Offline
                        brianaustin
                        Contributor
                        wrote on last edited by
                        #16

                        @Alex-Kushleyev
                        Received the new connector and everything now works! All cameras are operational and looking fantastic.

                        Thank you!

                        Alex KushleyevA 1 Reply Last reply
                        0
                        • B brianaustin

                          @Alex-Kushleyev
                          Received the new connector and everything now works! All cameras are operational and looking fantastic.

                          Thank you!

                          Alex KushleyevA Offline
                          Alex KushleyevA Offline
                          Alex Kushleyev
                          ModalAI Team
                          wrote on last edited by
                          #17

                          @brianaustin great to hear, thanks for the update!

                          1 Reply Last reply
                          0

                          Hello! It looks like you're interested in this conversation, but you don't have an account yet.

                          Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.

                          With your input, this post could be even better 💗

                          Register Login
                          Reply
                          • Reply as topic
                          Log in to reply
                          • Oldest to Newest
                          • Newest to Oldest
                          • Most Votes


                          ModalAI
                          Categories Recent Tags ModalAI.com Docs
                          © 2026 ModalAI® · Accelerating autonomy for smaller, smarter, safer drones · Powered by NodeBB
                          • Login

                          • Don't have an account? Register

                          • Login or register to search.
                          • First post
                            Last post
                          0
                          • Categories
                          • Recent
                          • Tags
                          • Popular
                          • Users
                          • Groups