Hello everyone,

I am trying to generate a simple dll file from a simulink model. Basically the model takes an input, multiplies by two and puts it into an output. So I have created a matlab function in simulink such as this:
function y = fcn(u)
y = 2*u;

Now I want to generate the .dll file by using embedded coder. So I select ‘Shared library’, select the subsystem in simulink and click in embedded coder -> Generate subsystem. As a result I get a lot of files and mainly important the file multiply2.c Looking at the code I can see:
/* Model step function */
void multiply20_step(void)
{
/* Outport: ‘<Root>/y’ incorporates:
* Inport: ‘<Root>/u’
* MATLAB Function: ‘<Root>/multiply2’
*/
multiply20_Y.y = 2.0 * multiply20_U.signal1;
}

The .dll file is also generated properly. The thing is that I want to use this .dll in other program and to use it I need to use a function with inputs and ouputs to be able to call the dll. So I am trying to generate the C files and the .dll such that this function is something like this:
int multiply20_step(int)
{
The rest of the code.
}

I want this to be able to call this function with input parameters. I think that it migth have something to do with the Code generation/Interface parameters or maybe with the ‘Code Interface’ but I wasn’t able yet to solve it.

Could someone help me please. Thanks in advance.Hello everyone,

I am trying to generate a simple dll file from a simulink model. Basically the model takes an input, multiplies by two and puts it into an output. So I have created a matlab function in simulink such as this:
function y = fcn(u)
y = 2*u;

Now I want to generate the .dll file by using embedded coder. So I select ‘Shared library’, select the subsystem in simulink and click in embedded coder -> Generate subsystem. As a result I get a lot of files and mainly important the file multiply2.c Looking at the code I can see:
/* Model step function */
void multiply20_step(void)
{
/* Outport: ‘<Root>/y’ incorporates:
* Inport: ‘<Root>/u’
* MATLAB Function: ‘<Root>/multiply2’
*/
multiply20_Y.y = 2.0 * multiply20_U.signal1;
}

The .dll file is also generated properly. The thing is that I want to use this .dll in other program and to use it I need to use a function with inputs and ouputs to be able to call the dll. So I am trying to generate the C files and the .dll such that this function is something like this:
int multiply20_step(int)
{
The rest of the code.
}

I want this to be able to call this function with input parameters. I think that it migth have something to do with the Code generation/Interface parameters or maybe with the ‘Code Interface’ but I wasn’t able yet to solve it.

Could someone help me please. Thanks in advance. Hello everyone,

I am trying to generate a simple dll file from a simulink model. Basically the model takes an input, multiplies by two and puts it into an output. So I have created a matlab function in simulink such as this:
function y = fcn(u)
y = 2*u;

Now I want to generate the .dll file by using embedded coder. So I select ‘Shared library’, select the subsystem in simulink and click in embedded coder -> Generate subsystem. As a result I get a lot of files and mainly important the file multiply2.c Looking at the code I can see:
/* Model step function */
void multiply20_step(void)
{
/* Outport: ‘<Root>/y’ incorporates:
* Inport: ‘<Root>/u’
* MATLAB Function: ‘<Root>/multiply2’
*/
multiply20_Y.y = 2.0 * multiply20_U.signal1;
}

The .dll file is also generated properly. The thing is that I want to use this .dll in other program and to use it I need to use a function with inputs and ouputs to be able to call the dll. So I am trying to generate the C files and the .dll such that this function is something like this:
int multiply20_step(int)
{
The rest of the code.
}

I want this to be able to call this function with input parameters. I think that it migth have something to do with the Code generation/Interface parameters or maybe with the ‘Code Interface’ but I wasn’t able yet to solve it.

Could someone help me please. Thanks in advance. embedded coder, simulink, dll files MATLAB Answers — New Questions

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