How do I get the "Base Data Types" of the block Input/Output interface?

Question

Fangping 2024-6-20

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2130201-how-do-i-get-the-base-data-types-of-the-block-input-output-interface

评论： Fangping 2024-7-15

I want to get the "Base Data Types" of the Simulink module, what should I do?

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Fangping 2024-7-15

function [lgc,in1data,in2data] = compadata(inportdata_1,inportdata_2)

if iscell(inportdata_1)

inportdata_1=inp

ortdata_1{:};

end

if iscell(inportdata_2)

inportdata_2=inportdata_2{:};

end

%%输入口1

in1obj = evalin('base',['whos(''',inportdata_1,''');']);

if ~isempty(in1obj)

switch in1obj.class

case 'Simulink.AliasType'

in1data = evalin("base",[inportdata_1,'.BaseType;']);

case 'Simulink.NumericType'

temstr = evalin("base",[inportdata_1,';']);

switch temstr.DataTypeMode

case 'Fixed-point: slope and bias scaling'

in1data='';

if strcmp(temstr.Signedness,'Signed')

in1data = 'sfix';

elseif strcmp(temstr.Signedness,'Unsigned')

in1data = 'ufix';

end

if temstr.Slope == 1

if contains(in1data,'sfix')

in1data=['int',num2str(temstr.WordLength)];

elseif contains(in1data,'ufix')

in1data=['uint',num2str(temstr.WordLength)];

end

else

if rem(log2(temstr.Slope),1) == 0

in1data = [in1data,num2str(temstr.WordLength),'_En',num2str(abs(round(log2(temstr.Slope))))];

else

in1data = [in1data,num2str(temstr.WordLength),'_Sp',strrep(num2str(temstr.Slope),'0.','')];

end

if temstr.Bias ~=0

in1data = [in1data,'_B',num2str(temstr.Bias)];

end

case 'Fixed-point: unspecified scaling'

in1data='';

if strcmp(temstr.Signedness,'Signed')

in1data = 'sfix';

in1data = [in1data,num2str(temstr.WordLength),'_En',num2str(temstr.WordLength-2)];

elseif strcmp(temstr.Signedness,'Unsigned')

in1data = 'ufix';

in1data = [in1data,num2str(temstr.WordLength),'_En',num2str(temstr.WordLength-1)];

end

case 'Fixed-point: binary point scaling'

in1data='';

if strcmp(temstr.Signedness,'Signed')

in1data = 'sfix';

elseif strcmp(temstr.Signedness,'Unsigned')

in1data = 'ufix';

end

if temstr.FractionLength ~= 0

in1data = [in1data,num2str(temstr.WordLength),'_En',num2str(temstr.FractionLength)];

else

if contains(in1data,'sfix')

in1data=['int',num2str(temstr.WordLength)];

elseif contains(in1data,'ufix')

in1data=['uint',num2str(temstr.WordLength)];

end

else

if ~isempty(Simulink.findIntEnumType(inportdata_1))

in1data = Simulink.data.getEnumTypeInfo(inportdata_1,'StorageType');

else

in1data = inportdata_1;

end

This is an example I wrote, later you can use for reference.

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Answer 1

Amith 2024-6-20

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2130201-how-do-i-get-the-base-data-types-of-the-block-input-output-interface#answer_1474566

在 MATLAB Online 中打开

To determine the data types of Simulink modules, you can make use of the 'CompiledPortDataType' property.

Consider the below example which uses the Van der Pol oscillator model (`vdp`) available in MATLAB:

% open the model
vdp
% compile the model
vdp([],[],[],'compile'); 
% get the port handles
h = get_param('vdp/Mu','CompiledPortDataType');
% get the output port data type of the Mu block
h.OutPort{1};
% terminate the compilation
vdp([],[],[],'term')  

Note: Compiling the model is a prerequisite for querying the data types.

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Fangping 2024-6-26

This method still cannot get the basic data type, described as follows:

As shown in the figure above, I can only get the data type at position 1 by compiling, but the base type I actually use is sfix16_En6. So that's position 2. How to get this port directly using sfix16_En6.

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Answer 2

Piyush Kumar 2024-6-20

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2130201-how-do-i-get-the-base-data-types-of-the-block-input-output-interface#answer_1474556

@Fangping,

You can follow these steps -

Open your model in Simulink
DEBUG => Information Overlays => PORTS => Base Data Types

For the entire model, data types of each signal in the model.

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Fangping 2024-6-26

Thank you for your answer, but this I know to show. I want to get its underlying data type, which can be done by way of code. It can be obtained directly in code.

As shown in the figure above, I can only get the data type at position 1 by compiling, but the base type I actually use is sfix16_En6. So that's position 2. How to get this port directly using sfix16_En6.

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