NXP MIPI-CSI Camera SetVoipac webshop
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 iMX 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.
Gstreamer
Capture single JPEG picture
root@imx8mq-voipac:~# gst-launch-1.0 v4l2src num-buffers=1 ! jpegenc ! filesink location=sample_image_nxp.jpeg
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
[ 1301.273334] ov5640_mipi 2-003c: s_stream: 1
Got EOS from element "pipeline0".[ 1303.353181] ov5640_mipi 2-003c: s_stream: 0
Execution ended after 0:00:02.649996154
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...
root@imx8mq-voipac:~# ls
sample_image.jpeg
root@imx8mq-voipac:~#
The image stored in local media with name sample_image_nxp.jpeg
Video preview
root@imx8mq-voipac:~# GST_DEBUG=GST_BUFFER:5 gst-launch-1.0 v4l2src ! 'video/x-raw,framerate=30/1' ! autovideosink
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
0:00:00.842776580 469 0xaaaadc001c00 DEBUG GST_BUFFER gstbuffer.c:2279:gst_buffer_add_meta: alloc metadata 0xaaaadc0623c0 (GstVideoMeta) of size 112
0:00:00.842935198 469 0xaaaadc001c00 DEBUG GST_BUFFER gstbuffer.c:2279:gst_buffer_add_meta: alloc metadata 0xaaaadc062440 (GstVideoMeta) of size 112
0:00:00.843278592 469 0xaaaadc001c00 DEB[ 1415.898001] ov5640_mipi 2-003c: s_stream: 1
UG GST_BUFFER gstbuffer.c:2279:gst_buffer_add_meta: alloc metadata 0xaaaadc0624c0 (GstVideoMeta) of size 112
0:00:00.843338584 469 0xaaaadc001c00 DEBUG GST_BUFFER gstbuffer.c:2279:gst_buffer_add_meta: alloc metadata 0xaaaadc062540 (GstVideoMeta) of size 112
[ 1416.119964] skip frame 1
The video stream from camera can be displayed on display/monitor