Problem with control of Dynamixel AX-12A by using MatLab

I plan to work with Dynamixel AX-12A, which is connected to computer (Win64 with Windows 10) by USB2Dynamixel. I use information from Dynamixel SDK Manual ( item 4.6 ) for adding libraries in MatLab R2014a (it's files for DynamixelSDK-3.4.1), but when I run file "read_write.m", I got error:

    Index exceeds matrix dimensions.

    Error in
    loadlibrary>getLoadlibraryCompilerConfiguration
    (line 497)
    compilerConfiguration=compilerConfiguration(1);
    %unix machines return c and cpp
    compilers here

    Error in loadlibrary (line 253)
    [thunk_build_fn,preprocess_command]=getLoadlibraryCompilerConfiguration(ccinclude,header,headername,compilerConfiguration);

    Error in read_write (line 60)
    [notfound, warnings] =
    loadlibrary(lib_name,
    'dynamixel_sdk.h', 'addheader',
    'port_handler.h', 'addheader',
    'packet_handler.h');

Also I tried to add library as it's written in ROBOTIS e-Manual v1.24.00 , but I have simular error. Could you help me with this problem?

Answer 1

[Michael C.]

I believe I ran into the same type of problem while trying to communicate with some Dynamixel servos. My solution was just to create a serial port object and then build up my own library around that since the Dynamixel communication is fairly straightforward and well documented. This is the start of it.

serialPort = serial('COM3','BaudRate',1000000,'Parity','none','DataBits',8,'StopBits',1,'Timeout',1);
fopen(serialPort);

I think this is the document I originally started with for building my code (see page 9) http://documents.mx/documents/dynamixel-ax12-matlab.html

I might try and pretty up and document some of my code and put it on the file exchange.

[Grigoriy Yashin]

Thank you, but I found other solution. It was problem with compiler, which I solved by installing Microsoft Visual Studio Professional 2013. On some reason I couldn't use Microsoft Visual Studio 2015. Maybe you know how can I connect Dynamixel to MatLab by using special Arduino (Arduino with libraries for Dynamixel motors)?

Answer 2

[Alice James]

Hi

How did you get it to work with visual studio?