problem with building a simulink model with two s-functions written in C language
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Hi all, I have a problem with building a Simulink model for Real-time aplication. I try to build a mdl with two S-functions written in C. I use same header files in both S-functions. I have biult the C files with "mex MPCtest1.c MPCtest2.c" (these are very simple test S-functions whih I created to try resolving the problem). Here is the message that Matlab produces:
MPCtest2.obj : error LNK2005: __ssSetInputPortMatrixDimensions already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: __ssSetOutputPortMatrixDimensions already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: __ssSetInputPortVectorDimension already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: __ssSetOutputPortVectorDimension already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _ssIsRunTimeParamTunable already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _ssGetSFuncBlockHandle already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: __ssGetCurrentInputPortWidth already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: __ssGetCurrentOutputPortWidth already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _ssWarning already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _ssGetDTypeIdFromMxArray already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _ssWriteRTWStr already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _ssWriteRTWNameValuePair already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _ssWriteRTWParameters already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _ssWriteRTWParamSettings already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _ssWriteRTWWorkVect already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _mexFunction already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _ssWriteRTWMxVectParam already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _ssWriteRTWMx2dMatParam already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _DYNAMIC_DIMENSION_DEF already defined in MPCtest1.obj
MPCtest2.obj : error LNK2005: _DYNAMIC_DIMENSION already defined in MPCtest1.obj
It would be great if someone could help me.
Thank you!!!
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Kaustubha Govind
le 1 Sep 2011
You need to compile them separately - they need to be two separate binaries:
mex MPCtest1.c
mex MPCtest2.c
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