How to use the SDK?

nemezys

Hello,

I'm working on a project with the camere ASI 120 MC Color.

I have to develop a simple application on a Rapsberry Pi to take pictures with the console but i don't understand how to use the SDK provided with the camera.

I tried Windows 10 Iot on my Raspberry Pi. I can control the camera with my program only on my laptop, not on the Raspberry Pi because the architecture arm is apparently not supported by the librairies provided for Windows.

Then i changed my OS for Raspbian and i tried Visual Studio with remote debugger and GCC in command line but the ASI's and Opencv's method are not recognized. I don't understand how to use the librairies for linux.

Is it possible to use another library for Windows on an arm architecture?

Else, which librairies should I use with Raspbian?

How should I include these librairies on Visual Studio or GCC?

Thanks

Loïc

yang

Currently our SDK doesn't support Windows on ARM platform, if you want to use our SDK on raspberry pi, you can only use Linux OS, here is the SDK for Linux and MacOSX:

http://astronomy-imaging-camera.com/software/ASI_linux_mac_SDK_V0.6.0414.tar

and refer to the demo code contained in the package.

nemezys

Thanks, I can init the camera under Linux but a have a segmentation fault during the capture.

I used gdb to fix the issue and i have this :

Cannot access memory at address 0x81fa

0x76c39094 in ?? () from /lib/arm-linux-gnueabihf/libusb-1.1-0.so.0

I tried to reinstall libusb but it resolved nothing.

I read in another post that it can be an usb problem and it is written to use your upgrade tool but it is a .exe, I cannot launch it on raspbian.

Would you have another solution?

nemezys

I fixed the segmentation fault but i can't take pictures.

This line always fails :

if(getImageData(pData, width*height, -1))

I declared pData as :

unsigned char *pData = new unsigned char;

All steps before getting image run succesfully but this line blocks all.

My code is based on the demo provided with the SDK. I tried to compile all files included in the demo but no one works.

Can it be caused by the use of USB2 with linux?

yang

you should use other software to comfirm the camera can work on Linux, say Oacapture, refer to the software list:

https://astronomy-imaging-camera.com/software/

and manual:

https://astronomy-imaging-camera.com/manuals/ASI%20Cameras%20software%20Manual%20Linux%20OSX%20EN.pdf

if not work, you can try to falsh it to compatible firmware on Windows.

nemezys

It works on linux, i can use the video mode but not the snap mode and the demo provided does not work (and I don't understand why it starts an exposure and stop the video capture instead of the exposure).

When I start the exposure, the status is always WORKING. I never reach the call of getImageAfterExp().

yang

Actually stopvideocapture will stop both video and exposure, the same as stopexposure.

>When I start the exposure, the status is always WORKING. I never reach the call of >getImageAfterExp().

maybe the exposure duration is too long, the unit of exposure time is us.