Camera sync mode

veye_xumm

@veye_xumm
Thanks for your answer.

Did I understand that correctly. The connections should look like this:
One wire from - to
J6 pin 2 - J8 pin 2
J6 pin 4 - J8 pin 4
J6 pin 6 - J8 pin 6

I think you just need to connect 2 4 6 8 pins of J6 and J8 together.
And all 1 2 3 4 5 6 7 8 pins of J6 and J8 together will work too.

g-towboat

@veye_xumm
i'm sorry, but i still haven't got it. Can you describe it in a table e.g.:
J6 Pin X - J8 Pin Y

Thank you

veye_xumm

@g-towboat

It's not some pairs of connection. It's a group of connection.

For example:
J6-2 is the source of XVS, and J6-4 J6-6 J6-8 J8-2 J8-4 J8-6 J8-8 are all sink of XVS.
So what you need to do is connect all these pins together.

J6-1 J6-3 J6-5 J6-7 are already connected together on the board.
J8-1 J8-3 J8-5 J8-7 are already connected together on the board.
You can use them if you want.

g-towboat

This post is deleted!

g-towboat

@veye_xumm

e.g my post here:
http://forum.veye.cc/topic/21/camera-i2c-configuaration-for-sync-mode

I just have blue images like the post here:
http://forum.veye.cc/topic/22/i-want-to-synchronize-the-two-cameras-in-sync-mode
But i have 8 cameras connected.

Do I also connect the boards: FPD-LINK3-2RX?
or is it the i2c configuration?

veye_xumm

@g-towboat
Since you use CS-FPD-XAVIER-nCAM-IMX307, FPD-LINK3-2RX is a part of this module.

veye_xumm

@g-towboat
You can post your hardware connection here, I'll check it for you.

g-towboat

I think it's worked now, i have made an Firmware update of each camera. What is the best way to check synchronization?

veye_xumm

@g-towboat
Please refer to:
http://forum.veye.cc/topic/22/i-want-to-synchronize-the-two-cameras-in-sync-mode/6?_=1616485571342

g-towboat

@veye_xumm I still have blue Images.

Wire configuration standard.

Changed as reference in http://forum.veye.cc/topic/22/i-want-to-synchronize-the-two-cameras-in-sync-mode/6?_=1616485571342

Can you please check what i am doing wrong or post a detailed photo of the right configuration.
Thank you

veye_xumm

@g-towboat

I think you pick out the wrong wire.

g-towboat

@veye_xumm
SYNC signal connect:
J7-3 (GPIO0) to J1-3 (GPIO0),
J7-2 (GND) to J1-2 (GND)

Do i need to do the wireing on each camera? or just master camera.
Any other wiring to do?

veye_xumm

@g-towboat said in Camera sync mode:

@veye_xumm
SYNC signal connect:
J7-3 (GPIO0) to J1-3 (GPIO0),
J7-2 (GND) to J1-2 (GND)

Do i need to do the wireing on each camera? or just master camera.

everyone

Any other wiring to do?

no

g-towboat

@veye_xumm
It just work with two cameras but not with 8.
Any other ideas whats wrong ?

veye_xumm

@g-towboat
pls check you setting following :http://wiki.veye.cc/index.php/FPD_LINK_III_for_Jetson

g-towboat

@veye_xumm Hi Xumm,

I use this script to set sync_mode and master slave config:

#!/bin/bash

SYNC_INIT="sync_init"
STREAM_MODE="streammode"

echo -e "connected cameras:"
ls -l /dev/video* 

echo -e "Set camera 0_1 to Master"
sh ./fpdlink3_i2c_jetson.sh -f $SYNC_INIT -p 0 -p1 0 -b 30
sh ./cs_mipi_i2c.sh -w -f $STREAM_MODE -p1 1 -p2 0 -b 30 -d 0x3b
echo -e "Set camera 0_2 to slave"
sh ./fpdlink3_i2c_jetson.sh -f $SYNC_INIT -p 1 -p1 1 -b 30
sh ./cs_mipi_i2c.sh -w -f $STREAM_MODE -p1 1 -p2 1 -b 30 -d 0x3c
echo -e "Set camera 1_1 to slave"
sh ./fpdlink3_i2c_jetson.sh -f $SYNC_INIT -p 0 -p1 1 -b 31
sh ./cs_mipi_i2c.sh -w -f $STREAM_MODE -p1 1 -p2 1 -b 31 -d 0x3b
echo -e "Set camera 1_2 to slave"
sh ./fpdlink3_i2c_jetson.sh -f $SYNC_INIT -p 1 -p1 1 -b 31
sh ./cs_mipi_i2c.sh -w -f $STREAM_MODE -p1 1 -p2 1 -b 31 -d 0x3c
echo -e "Set camera 2_1 to slave"
sh ./fpdlink3_i2c_jetson.sh -f $SYNC_INIT -p 0 -p1 1 -b 32
sh ./cs_mipi_i2c.sh -w -f $STREAM_MODE -p1 1 -p2 1 -b 32 -d 0x3b
echo -e "Set camera 2_2 to slave"
sh ./fpdlink3_i2c_jetson.sh -f $SYNC_INIT -p 1 -p1 1 -b 32
sh ./cs_mipi_i2c.sh -w -f $STREAM_MODE -p1 1 -p2 1 -b 32 -d 0x3c
echo -e "Set camera 3_1 to slave"
sh ./fpdlink3_i2c_jetson.sh -f $SYNC_INIT -p 0 -p1 1 -b 33
sh ./cs_mipi_i2c.sh -w -f $STREAM_MODE -p1 1 -p2 1 -b 33 -d 0x3b
echo -e "Set camera 3_2 to slave"
sh ./fpdlink3_i2c_jetson.sh -f $SYNC_INIT -p 1 -p1 1 -b 33
sh ./cs_mipi_i2c.sh -w -f $STREAM_MODE -p1 1 -p2 1 -b 33 -d 0x3c

This is the result:

====== Configure master/slave syncmode ====== 

connected cameras:
crw-rw----+ 1 root video 81,  0 Mär 29 16:25 /dev/video0
crw-rw----+ 1 root video 81,  3 Mär 29 16:25 /dev/video1
crw-rw----+ 1 root video 81,  6 Mär 29 16:25 /dev/video2
crw-rw----+ 1 root video 81,  9 Mär 29 16:25 /dev/video3
crw-rw----+ 1 root video 81, 12 Mär 29 16:25 /dev/video4
crw-rw----+ 1 root video 81, 15 Mär 29 16:25 /dev/video5
crw-rw----+ 1 root video 81, 18 Mär 29 16:25 /dev/video6
crw-rw----+ 1 root video 81, 21 Mär 29 16:25 /dev/video7
Set camera 0_1 to Master
usage: p1, role,0 is master,1 is slave
init fpdlink sync mode port 0 role as MASTER!
w stream mode master 
w streammode 0x 1 slave mode 0x 0 and save param
w paramsave,all param will write to flash
Set camera 0_2 to slave
usage: p1, role,0 is master,1 is slave
init fpdlink sync mode port 1 role as SLAVE! 
w stream mode slave 
w streammode 0x 1 slave mode 0x 1 and save param
w paramsave,all param will write to flash
Set camera 1_1 to slave
usage: p1, role,0 is master,1 is slave
init fpdlink sync mode port 0 role as SLAVE! 
w stream mode slave 
w streammode 0x 1 slave mode 0x 1 and save param
w paramsave,all param will write to flash
Set camera 1_2 to slave
usage: p1, role,0 is master,1 is slave
init fpdlink sync mode port 1 role as SLAVE! 
w stream mode slave 
w streammode 0x 1 slave mode 0x 1 and save param
w paramsave,all param will write to flash
Set camera 2_1 to slave
usage: p1, role,0 is master,1 is slave
init fpdlink sync mode port 0 role as SLAVE! 
w stream mode slave 
w streammode 0x 1 slave mode 0x 1 and save param
w paramsave,all param will write to flash
Set camera 2_2 to slave
usage: p1, role,0 is master,1 is slave
init fpdlink sync mode port 1 role as SLAVE! 
w stream mode slave 
w streammode 0x 1 slave mode 0x 1 and save param
w paramsave,all param will write to flash
Set camera 3_1 to slave
usage: p1, role,0 is master,1 is slave
init fpdlink sync mode port 0 role as SLAVE! 
w stream mode slave 
w streammode 0x 1 slave mode 0x 1 and save param
w paramsave,all param will write to flash
Set camera 3_2 to slave
usage: p1, role,0 is master,1 is slave
init fpdlink sync mode port 1 role as SLAVE! 
w stream mode slave 
w streammode 0x 1 slave mode 0x 1 and save param
w paramsave,all param will write to flash

Looks good for me.

If i ask the i2c bus which mode is configured, i get this:

Camera 0_1
r streammode 0x 1 slave mode is 0
Camera 0_2
r streammode 0x 1 slave mode is 1
Camera 1_1
r streammode 0x 1 slave mode is 1
Camera 1_2
r streammode 0x 1 slave mode is 1
Camera 2_1
r streammode 0x 1 slave mode is 1
Camera 2_2
r streammode 0x 1 slave mode is 1
Camera 3_1
r streammode 0x 1 slave mode is 1
Camera 3_2
r streammode 0x 1 slave mode is 1

To grab images i use my v4l2-ctl script:

#!/bin/bash

cameras=7
counter=0
while [ $counter -le $cameras ]
do
	echo -e "Camera_"$counter
	v4l2-ctl --device /dev/video$counter --stream-mmap --stream-to=frame_$counter.raw --stream-count=1
	convert -size 1920x1080 -depth 16 uyvy:frame_$counter.raw frame_$counter.png
	((counter++))
done

Camera 1 images looks good.
some cameras a purple some are blue!

![0_1617029969347_frame_1.png](Lade 100% hoch)

Do you need more informations? Or do you have any ideas whats wrong?

veye_xumm

@g-towboat

@g-towboat said in Camera sync mode:

some cameras a purple some are blue!
![0_1617029969347_frame_1.png](Lade 100% hoch)
Do you need more informations? Or do you have any ideas whats wrong?

which one is purple,which one is blue?
I think the script is good. It might be wire connection problem.

Could you draw a sketch of this part? let me have a look.

g-towboat

@veye_xumm
Hi here is my drawing:

Bildschirmfoto 2021-03-30 um 07.57.41.png

Red: the jumpers
Green: the two black delivered wires

Following cameras showing this kind of image:

Camera 1 /dev/video0 image ok
Camera 2 /dev/video1 blue image
Camera 3 /dev/video2 purple image
Camera 4 /dev/video3 image ok
Camera 5 /dev/video4 purple image
Camera 6 /dev/video5 blue image
Camera 7 /dev/video6 purple image
Camera 8 /dev/video7 blue image

veye_xumm

@g-towboat
I think your wire connection is ok. Do you install a lens on your camera?
I don't understand the purple image.
Please post a purple image and a blue image. let me look at it.

g-towboat

@veye_xumm
No special lens on the cameras - just the standard from veye
Here is an image