Camera module raspistill not working!

[a.stewart.au]

I am using a RPi with a camera module. I've installed a MATLAB support package onto it which allows the MATLAB on my PC to communicate with the RPi and take photos over the network.

I now want to be able to use commands on the RPi like 'raspistill' to take pictures, but I can't do this while it's in use by the MATLAB server! I am getting this error:

Code: Select all

pi@raspberrypi-mvHdY05c5o:~ $ sudo raspistill -o cam.jpg
mmal: mmal_vc_component_enable: failed to enable component: ENOSPC
mmal: camera component couldn't be enabled
mmal: main: Failed to create camera component
mmal: Failed to run camera app. Please check for firmware updates

How can I free the camera from the MATLAB server so that I can use raspistill?

[DougieLawson]

What do you get from a vcgencmd get_camera command?

[boboyee2001]

hello i am having the exact same problem
i used the vcgencmd get_camera and got
supported=1 detected=1

Dougie Lawson do you have any insight on this problem

[mbelge]

MATLAB server grabs the camera only when user creates a "cameraboard" object. So if you have a cameraboard object just clear it and MATLAB server will release the camera.

Example:

>> r = raspi;
>> cam = cameraboard(r);
>> img = snapshot(cam);
>> clear('cam')
>> system(r,'raspistill -o test.jpg')
>> getFile(r,'test.jpg')
>> image(imread('test.jpg'))