NXP MIPI-CSI Camera Set
MINISASTOCSI is a MIPI-CSI interface camera kit, based on OmniVision chipset OV5640 Detection, performance and essential commands are described here.
MINISASTOCSI is a MIPI-CSI interface camera connected to iMX8M Development Baseboard
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 0x3c as MINISASTOCSI camera connected on CSI-1 interface.
Modules listing
Kernel 4.1
root@imx6-openrex:~# 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 root@imx8mq-voipac:~# lsmod Module Size Used by crct10dif_ce 16384 1 mwifiex_pcie 45056 0 mwifiex 294912 1 mwifiex_pcie galcore 610304 2
Resolution setting
1280x960
echo 0 > /sys/bus/i2c/devices/1-0036/ov5647_mode
1280x720
echo 1 > /sys/bus/i2c/devices/1-0036/ov5647_mode
1920x1080
echo 2 > /sys/bus/i2c/devices/1-0036/ov5647_mode
640x480
echo 3 > /sys/bus/i2c/devices/1-0036/ov5647_mode
1024x768 (default)
echo 4 > /sys/bus/i2c/devices/1-0036/ov5647_mode
960x720
echo 5 > /sys/bus/i2c/devices/1-0036/ov5647_mode
640x480 (narrow angle of view)
echo 6 > /sys/bus/i2c/devices/1-0036/ov5647_mode
Gstreamer
Capture single JPEG picture
echo 2 > /sys/bus/i2c/devices/1-0036/ov5647_mode gst-launch-1.0 v4l2src device="/dev/video1" num-buffers=1 ! video/x-bayer,width=1920,height=1080,framerate=30/1 ! bayer2rgb ! videoconvert ! jpegenc ! filesink location=sample_1920_1080.jpeg
Video preview
echo 2 > /sys/bus/i2c/devices/1-0036/ov5647_mode gst-launch-1.0 v4l2src device="/dev/video1" ! video/x-bayer,width=1920,height=1080,framerate=30/1 ! queue ! bayer2rgb ! videoconvert ! fbdevsink
echo 3 > /sys/bus/i2c/devices/1-0036/ov5647_mode gst-launch-1.0 v4l2src device="/dev/video1" ! video/x-bayer,width=640,height=480,framerate=15/1 ! bayer2rgb ! videoconvert ! fbdevsink