Java in simulink code - EV3

2 次查看（过去 30 天）

Marco Biroli 2016-12-25

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/318144-java-in-simulink-code-ev3

评论： Sharmila Raghu 2016-12-29

Hello,

I am using this MATLAB toolkit: https://wiki.qut.edu.au/display/cyphy/QUT+EV3+MATLAB+toolkit to program an EV3 robot. My problem is that I am trying to access a part of this code simply by saying:

"b = Brick('ioType','wifi','wfAddr','192.168.1.104','wfPort',5555,'wfSN','0016533dbaf5')" but if I try to run it I first got an error about varagin not being allowed here but I went around that problem and now it tells me:

"Import statements are currently unsupported.

Function 'wfBrickIO.m' (#72.2759.2765), line 74, column 13: "import"".

The part of code that causes problem in wfBrickIO.m is:

    % import the required java libraries
            import java.io.*;
            import java.net.*;
            % add the java path to the class path
            javaaddpath .
            % open the brick IO connection
            brickIO.handle = Socket(brickIO.addr, brickIO.port);
            % set the input stream
            brickIO.inputStream = DataInputStream(brickIO.handle.getInputStream);
            % set the output stream
            brickIO.outputStream = OutputStreamSend();
            % connection message to the brick
            wmsg = ['GET /target?sn=' brickIO.serialNum ' VMTP1.0' char(10) 'Protocol: EV3'];
            if brickIO.debug > 0
                fprintf('Sent: [ %s ]\n',char(wmsg));
            end
            % send the connection message
            brickIO.write(wmsg);
            % receive the reply
            rmsg = brickIO.read;
            if brickIO.debug > 0
                fprintf('Returned: [ %s ]\n',char(rmsg));
            end

What could I do ? I tried to say "coder.extrinsic('Brick')" but then I got an error saying that Code Generation needed 'Brick'. I tried "coder.extrinsic('wfBrickIO')" but then it tells me that: "Code generation does not support class properties of mxArray type."