NXP MIPI-CSI Camera Set
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MINISASTOCSI is a MIPI-CSI interface camera kit, based on OmniVision chipset OV5640 Detection, performance and essential commands are described here.
Kernel detection
root@imx8mq-voipac:~# dmesg | grep ov56 [ 2.398433] ov5640_mipi 1-003c: No pin available [ 2.403090] ov5640_mipi 1-003c: No sensor pwdn pin available [ 2.408777] ov5640_mipi 1-003c: No sensor reset pin available [ 2.414571] ov5640_regulator_enable: cannot get io voltage error - err:-517 [ 2.539603] ov5640_mipi 2-003c: No pin available [ 2.549079] ov5640_mipi 2-003c: No sensor reset pin available [ 2.554887] ov5640_regulator_enable: cannot get io voltage error - err:-517 [ 2.999855] ov5640_mipi 1-003c: No pin available [ 3.005558] ov5640_mipi 1-003c: No sensor reset pin available [ 3.012003] ov5640_mipi 1-003c: 1-003c supply DVDD not found, using dummy regulator [ 3.019785] ov5640_mipi 1-003c: 1-003c supply AVDD not found, using dummy regulator [ 3.039290] ov5640_mipi 1-003c: Read reg error: reg=300a [ 3.044691] ov5640_mipi 1-003c: Camera is not found [ 3.051918] ov5640_mipi 2-003c: No pin available [ 3.062814] ov5640_mipi 2-003c: No sensor reset pin available [ 3.069209] ov5640_mipi 2-003c: 2-003c supply DVDD not found, using dummy regulator [ 3.076945] ov5640_mipi 2-003c: 2-003c supply AVDD not found, using dummy regulator [ 4.291092] mxc-mipi-csi2_yav 30a70000.mipi_csi: Registered sensor subdevice: ov5640_mipi 2-003c [ 4.304334] ov5640_mipi 2-003c: Camera is found
I2C detection
MINISASTOCSI camera chip is connected via I2C3. The most important address for correct detection is 0x3c.
root@imx8mq-voipac:~# i2cdetect -y 2
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: UU UU UU UU -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
MINISASTOCSI camera can be also connected to I2C2 interface by moving 0R resistors. However second camera connected on CSI-2 interface have same address as MINISASTOCSI camera connected on CSI-1 interface.
Listing modules
root@imx6-tinyrexmax:~# lsmod Module Size Used by mxc_v4l2_capture 27624 2 ipu_bg_overlay_sdc 5385 1 mxc_v4l2_capture ipu_still 2331 1 mxc_v4l2_capture ipu_prp_enc 5903 1 mxc_v4l2_capture ipu_csi_enc 3904 1 mxc_v4l2_capture ipu_fg_overlay_sdc 6130 1 mxc_v4l2_capture ov5647_camera_mipi_int 30566 0 adv7610_video 6373 0 v4l2_int_device 2872 4 ov5647_camera_mipi_int,adv7610_video,ipu_csi_enc,mxc_v4l2_capture mxc_dcic 6528 0
Resolution settings
Resolutions up to 720P are automatically detected.
Gstreamer
Capture single JPEG picture
gst-launch-1.0 v4l2src device="/dev/video0" num-buffers=1 ! video/x-raw,width=1280,height=720,framerate=30/1 ! videoconvert ! jpegenc ! filesink location=sampleadv_1280_720.jpeg
Video preview
gst-launch-1.0 v4l2src device="/dev/video0" ! video/x-raw,width=1280,height=720,framerate=30/1 ! videoconvert ! autovideosink
Video encode
gst-launch-1.0 v4l2src device="/dev/video0" num-buffers=1000 ! video/x-raw,width=1280,height=720,framerate=30/1 ! videoconvert ! queue ! vpuenc_h264 ! matroskamux ! filesink location=sample.mkv sync=false
Performance
| Resolution | FPS | Module | Command | Notes |
|---|---|---|---|---|
| 1920x1080 | =12 | Ultra | gst-launch-1.0 v4l2src device="/dev/video0" ! videoconvert ! autovideosink | Connected monitor 1920x1080, Booting from SATA |
| 1920x1080 | >=17 | Max | gst-launch-1.0 v4l2src device="/dev/video0" ! videoconvert ! autovideosink | Connected monitor 1920x1080, Booting from NFS |
| 1920x1080 | >=17 | Pro | gst-launch-1.0 v4l2src device="/dev/video0" ! videoconvert ! autovideosink | Connected monitor 1920x1080, Booting from SD |
| 1280x720 | >=29 | Ultra | gst-launch-1.0 v4l2src device="/dev/video0" ! videoconvert ! autovideosink | Connected monitor 1920x1080, Booting from SD |
| 1280x720 | >=29 | Max | gst-launch-1.0 v4l2src device="/dev/video0" ! videoconvert ! autovideosink | Connected monitor 1920x1080, Booting from NFS |
| 1280x720 | >=29 | Pro | gst-launch-1.0 v4l2src device="/dev/video0" ! videoconvert ! autovideosink | Connected monitor 1920x1080, Booting from SD |
| 800x600 | >=48 | Ultra | gst-launch-1.0 v4l2src device="/dev/video0" ! videoconvert ! autovideosink | Connected monitor 1920x1080, Booting from SD |
| 800x600 | >=48 | Max | gst-launch-1.0 v4l2src device="/dev/video0" ! videoconvert ! autovideosink | Connected monitor 1920x1080, Booting from NFS |
| 800x600 | >=48 | Pro | gst-launch-1.0 v4l2src device="/dev/video0" ! videoconvert ! autovideosink | Connected monitor 1920x1080, Booting from SD |