Linking FreeMASTER and Matlab

mkrug — Tue, 02 Oct 2012 15:16:51 GMT

Hello,

I try to link FreeMASTER and Matlab. The aim is to have a model of the realistic world inside Matlab/Simulink that gets controlled on a Kinetis Tower Board.

So far I execute in a m-file the command:

e = actxserver ('MCB.PCM')

as an answer I get:

e =

COM.MCB_PCM

If I execute for example:

e.get

I get the whole list of ActiveX commands:

	LastResult: NaN
	LastRetMsg: NaN
	LastVariable_vValue: NaN
	LastVariable_tValue: NaN
	LastMemory_hexstr: NaN
	LastMemory_data: NaN
	LastRecorder_data: NaN
	LastRecorder_serieNames: NaN
	LastRecorder_timeBaseSec: NaN
	LastRecorder_state: NaN
	LastLocalFile_string: NaN

But always marked as: NaN - which I do not understand

If I execute one of the commands I get for example:

e.GetLastResult('var16')

??? No method 'GetLastResult' with matching signature found for class

'COM.MCB_PCM'.

Has anyone successful integrated FreeMASTER and Matlab or can give me a hint what I did wrong?

Best Regards

Markus

Re: Linking FreeMASTER and Matlab

JardaP — Wed, 17 Oct 2012 15:12:47 GMT

Hello Markus,

try following example:

% create FreeMASTER ActiveX object

fmstr = actxserver ('MCB.PCM');

% write 0x10 value into "var16" variable defined in FreeMASTER project

bSucc = fmstr.WriteVariable('var16inc', 16);

var16inc = 0;

bSucc = fmstr.ReadVariable('!var16inc'); %"!" immediate performs the command

if bSucc

var16inc = fmstr.LastVariable_vValue;

end

% show the value

var16inc;

% configure matlab to accept safe array as single dimension

feature('COM_SafeArraySingleDim', 1) ;

% write 4 bytes to memory 0x20. WriteMemory function expects SafeArray as input data

bSucc = fmstr.WriteMemory(32, 4, {11;22;33;44})

% reads 4 bytes from memory at address of var32inc variable

bSucc = fmstr.ReadMemory('var32inc', 4);

if bSucc

% reads data of last call the ReadMemory()function.

readMemResult = fmstr.LastMemory_data

end

% write to memory at pointer. The value of "var8" represents the pointer, 0x02 is offset.

% this is only demonstration !!Beware that wrong value of var8 may cause memory corruption!!

array = [11;22;33;44];

bSucc = fmstr.WriteUIntArray('valueof(var8) + 0x02', 4, 1, {array});

We are preparing FreeMASTER tool 1.3.16 where are included more examples in User Manual (javascript in html, VBA script in html and Excel and this matlab example)

Best Regards,

Jaroslav

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Linking FreeMASTER and Matlab

Re: Linking FreeMASTER and Matlab