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S-function with dynamically sized matrix and vector inputs
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Thomas Marullo
Sep 27, 2011, 4:10:32 PM9/27/11
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I am trying to create an S-function with input 0 as a dynamically sized matrix MxM and input 1 as a dynamically sized vector of Mx1. I am getting errors about the ports sizes. What am I missing here?
static void mdlInitializeSizes(SimStruct *S)
{
/*Input Port 0 */
inputDimsInfo.width = DYNAMICALLY_SIZED;
ssSetInputPortDimensionInfo(S, 0, &inputDimsInfo);
ssSetInputPortMatrixDimensions( S ,0, DYNAMICALLY_SIZED, DYNAMICALLY_SIZED);
ssSetInputPortDataType(S, 0, SS_DOUBLE);
ssSetInputPortDirectFeedThrough(S, 0, 1);
/*Input Port 1 */
ssSetInputPortWidth(S, 1, DYNAMICALLY_SIZED);
ssSetInputPortDataType(S, 1, SS_DOUBLE);
ssSetInputPortDirectFeedThrough(S, 1, 1);
/*Output Port 1*/
ssSetOutputPortWidth(S, 0, OUTPUT_0_WIDTH);
ssSetOutputPortDataType(S, 0, SS_DOUBLE);
static void mdlInitializeSizes(SimStruct *S)
{
/*Input Port 0 */
inputDimsInfo.width = DYNAMICALLY_SIZED;
ssSetInputPortDimensionInfo(S, 0, &inputDimsInfo);
ssSetInputPortMatrixDimensions( S ,0, DYNAMICALLY_SIZED, DYNAMICALLY_SIZED);
ssSetInputPortDataType(S, 0, SS_DOUBLE);
ssSetInputPortDirectFeedThrough(S, 0, 1);
/*Input Port 1 */
ssSetInputPortWidth(S, 1, DYNAMICALLY_SIZED);
ssSetInputPortDataType(S, 1, SS_DOUBLE);
ssSetInputPortDirectFeedThrough(S, 1, 1);
/*Output Port 1*/
ssSetOutputPortWidth(S, 0, OUTPUT_0_WIDTH);
ssSetOutputPortDataType(S, 0, SS_DOUBLE);
Steven_Lord
Sep 28, 2011, 9:48:26 AM9/28/11
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"Thomas Marullo" <tm...@lehigh.edu> wrote in message
news:j5tajo$b9i$1...@newscl01ah.mathworks.com...
> I am trying to create an S-function with input 0 as a dynamically sized
> matrix MxM and input 1 as a dynamically sized vector of Mx1. I am getting
> errors about the ports sizes. What am I missing here?
What is the FULL and EXACT text of the error messages you received?
> matrix MxM and input 1 as a dynamically sized vector of Mx1. I am getting
> errors about the ports sizes. What am I missing here?
--
Steve Lord
sl...@mathworks.com
To contact Technical Support use the Contact Us link on
http://www.mathworks.com
Thomas Marullo
Sep 28, 2011, 10:06:28 AM9/28/11
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"Steven_Lord" <sl...@mathworks.com> wrote in message <j5v8ja$gri$1...@newscl01ah.mathworks.com>...
"Error in port widths or dimensions. Invalid dimension has been specified for input port 1 of 'untitled1/S-Function'."
"Error in port widths or dimensions. Output port 1 of 'untitled1/Constant' is a [3x3] matrix."
Input 1 is a 3x3. Input 2 is [1 2 3]. Output is a To Workspace block.
"Error in port widths or dimensions. Output port 1 of 'untitled1/Constant' is a [3x3] matrix."
Input 1 is a 3x3. Input 2 is [1 2 3]. Output is a To Workspace block.
Syed Bilal Mehdi
Jul 20, 2012, 2:09:17 AM7/20/12
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This thread is dead by now. But for anyone who gets the same problem, and stumbles upon this post, I am posting the solution that worked for me. I found the solution was to add the following code (ref: http://www.mathworks.com/help/toolbox/simulink/sfg/f4-30616.html)
#if defined(MATLAB_MEX_FILE)
#define MDL_SET_INPUT_PORT_DIMENSION_INFO
static void mdlSetInputPortDimensionInfo(SimStruct *S,
int_T port,
const DimsInfo_T *dimsInfo)
{
if(!ssSetInputPortDimensionInfo(S, port, dimsInfo)) return;
}
#endif
#if defined(MATLAB_MEX_FILE)
#define MDL_SET_INPUT_PORT_DIMENSION_INFO
static void mdlSetInputPortDimensionInfo(SimStruct *S,
int_T port,
const DimsInfo_T *dimsInfo)
{
if(!ssSetInputPortDimensionInfo(S, port, dimsInfo)) return;
}
#endif
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