External Mode Error in Simulink with Raspberry pi video capture

Hello,

I have difficulty running on external mode in Simulink with Raspberry pi 3 Model B.

Here's the imformation about mypi:

>> mypi=raspi

mypi = 

raspi - 속성 있음:

DeviceAddress: '192.168.137.236'             
Port: 18734                 
BoardName: 'Raspberry Pi 3 Model B'      
AvailableLEDs: {'led0'}                      
AvailableDigitalPins: [4,5,6,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27]
AvailableSPIChannels: {'CE0','CE1'}                 
AvailableI2CBuses: {'i2c-1'}                     
AvailableWebcams: {'bcm2835-codec-decode (platform:bcm2835-codec):','/dev/video11','bcm2835-isp (platform:bcm2835-isp):',
    '/dev/video14','/dev/video16','/dev/video0'}
I2CBusSpeed: 100000   

Here is my Simulik Model:

I have set Hardware implementation as follows:

and of course the IP address and username/pwd are correct.

But when I run this model in external mode, it does not work and show error like this:

And if I deploy this model to hardware, SDL Video Display stays the same, and it shows;

### File v4l2_capture.c associated with S-Function 'v4l2_video_capture_sfcn' (used in 'raspberry_camera/V4L2 Video Capture') 
does not exist
### Successful completion of build procedure for model: raspberry_camera
Build process completed successfully

I've tried changing the port number in External mode but it didn't work also.

I used Microsoft LifeCam Studio webcam, but I think it's not the problem about webcam itself (It works very well independently)

Thank you very much in advance!

Best regards,

Jiwon LEE

[Prasanth Sunkara]

Hi Jiwon Lee,

We can try 2 different things

1) Change external mode -> Communication Interface -> TCP/IP. Basically, do not use XCP over TCP/IP when you have v4l2 blocks. Try External mode (or Monitor & Tune) now.

2) What happens if you do just "build & deploy" instead of Monitor & Tune? We should expect a SDL display window on the raspberry pi. You can open a VNC connection to Pi and check the ouput on SDL display window in Raspberry Pi.

Please let me know the outcomes of the above 2 approaches.

Thanks,

Prasanth