Converting a C char array into a Matlab String [Matlab Coder]
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My intention is to show for the output of Matlab System the char_T data[ ]
I've got two questions:
- How to declare the buffer (#1) variable to store a char_T data[ ]
- (#2) How do I dump buffer data through the output
% FILE.m
function data = stepImpl(obj)
buffer = ¿¿ ?? (#1) ;
if coder.target ('Rtw')
coder.cinclude('File_Wrapper.h');
coder.ceval('function',obj.port, coder.wref(buffer));
data = ¿¿¿ string(buffer) ??? (#2); % data - output Matlab System
end
end
Any suggestion is welcome!
% File_Wrapper.c
void function(uint8_T port, char_T data[])
{
if (obj.port == 1){
char buffer[30];
fgets(buffer, 10, uart1);
snprintf (data, sizeof(buffer), "%s", buffer);
}
}
This post dont work for me:
Thanks
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Respuestas (1)
Swastik
el 21 de Ag. de 2024 a las 3:35
You can declare an empty buffer in MATLAB using the “char” and “zeros” functions, and then convert it back to a string using the “string” function. Here's how you can do it in your “FILE.m:”:
% FILE.m
function data = stepImpl(port)
buffer = char(zeros(1,30)); % Adjust size accordingly
if coder.target('Rtw')
coder.cinclude('File_Wrapper.h');
coder.ceval('function', port, coder.wref(buffer));
data = string(char(buffer));
end
end
I have used the following command to generate code.
codegen -config:lib stepImpl -args {0.0} -launchreport
I hope this helps.
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