From: Pavel Pisa Date: Fri, 14 Feb 2014 21:22:20 +0000 (+0100) Subject: Digital input for MF624 implemented. X-Git-Url: http://rtime.felk.cvut.cz/gitweb/mf624-simulink.git/commitdiff_plain/05b89b5ef665056a92c843c2f9b734cd3a915595 Digital input for MF624 implemented. Signed-off-by: Pavel Pisa --- diff --git a/Makefile b/Makefile index 0ddd92a..a2a1402 100644 --- a/Makefile +++ b/Makefile @@ -4,4 +4,5 @@ all: mex $(MEXFLAGS) sfAnalogInput.c mf624_SIMULINK.c mex $(MEXFLAGS) sfAnalogOutput.c mf624_SIMULINK.c mex $(MEXFLAGS) sfDigitalOutput.c mf624_SIMULINK.c + mex $(MEXFLAGS) sfDigitalInput.c mf624_SIMULINK.c mex $(MEXFLAGS) sfReadPWM.c mf624_SIMULINK.c diff --git a/sfDigitalInput.c b/sfDigitalInput.c new file mode 100644 index 0000000..3919e98 --- /dev/null +++ b/sfDigitalInput.c @@ -0,0 +1,224 @@ +/* + * sfuntmpl_basic.c: Basic 'C' template for a level 2 S-function. + * + * ------------------------------------------------------------------------- + * | See matlabroot/simulink/src/sfuntmpl_doc.c for a more detailed template | + * ------------------------------------------------------------------------- + * + * Copyright 1990-2002 The MathWorks, Inc. + * $Revision: 1.27.4.2 $ + */ + + +/* + * You must specify the S_FUNCTION_NAME as the name of your S-function + * (i.e. replace sfuntmpl_basic with the name of your S-function). + */ + +#define S_FUNCTION_NAME sfDigitalInput +#define S_FUNCTION_LEVEL 2 + +#define CHNL_PRM(S) (mxGetScalar(ssGetSFcnParam(S, 0))) + +/* + * Need to include simstruc.h for the definition of the SimStruct and + * its associated macro definitions. + */ +#include "simstruc.h" +#include "mf624_SIMULINK.h" + +/* Error handling + * -------------- + * + * You should use the following technique to report errors encountered within + * an S-function: + * + * ssSetErrorStatus(S,"Error encountered due to ..."); + * return; + * + * Note that the 2nd argument to ssSetErrorStatus must be persistent memory. + * It cannot be a local variable. For example the following will cause + * unpredictable errors: + * + * mdlOutputs() + * { + * char msg[256]; {ILLEGAL: to fix use "static char msg[256];"} + * sprintf(msg,"Error due to %s", string); + * ssSetErrorStatus(S,msg); + * return; + * } + * + * See matlabroot/simulink/src/sfuntmpl_doc.c for more details. + */ + +/*====================* + * S-function methods * + *====================*/ + +/* Function: mdlInitializeSizes =============================================== + * Abstract: + * The sizes information is used by Simulink to determine the S-function + * block's characteristics (number of inputs, outputs, states, etc.). + */ +static void mdlInitializeSizes(SimStruct *S) +{ + /* See sfuntmpl_doc.c for more details on the macros below */ + + ssSetNumSFcnParams(S, 1); /* Number of expected parameters */ + if (ssGetNumSFcnParams(S) != ssGetSFcnParamsCount(S)) { + /* Return if number of expected != number of actual parameters */ + ssSetErrorStatus(S,"Parameter count mismatch"); + return; + } + + ssSetNumContStates(S, 0); + ssSetNumDiscStates(S, 0); + + if (!ssSetNumInputPorts(S, 0)) return; + + if (!ssSetNumOutputPorts(S, 1)) return; + ssSetOutputPortWidth(S, 0, 1); + + ssSetNumSampleTimes(S, 1); + ssSetNumRWork(S, 0); + ssSetNumIWork(S, 0); + ssSetNumPWork(S, 0); + ssSetNumModes(S, 0); + ssSetNumNonsampledZCs(S, 0); + + /* Specify the sim state compliance to be same as a built-in block */ + ssSetSimStateCompliance(S, USE_DEFAULT_SIM_STATE); + + ssSetOptions(S, 0); +} + + + +/* Function: mdlInitializeSampleTimes ========================================= + * Abstract: + * This function is used to specify the sample time(s) for your + * S-function. You must register the same number of sample times as + * specified in ssSetNumSampleTimes. + */ +static void mdlInitializeSampleTimes(SimStruct *S) +{ + ssSetSampleTime(S, 0, CONTINUOUS_SAMPLE_TIME); + ssSetOffsetTime(S, 0, 0.0); +} + + + +#undef MDL_INITIALIZE_CONDITIONS /* Change to #undef to remove function */ +#if defined(MDL_INITIALIZE_CONDITIONS) + /* Function: mdlInitializeConditions ======================================== + * Abstract: + * In this function, you should initialize the continuous and discrete + * states for your S-function block. The initial states are placed + * in the state vector, ssGetContStates(S) or ssGetRealDiscStates(S). + * You can also perform any other initialization activities that your + * S-function may require. Note, this routine will be called at the + * start of simulation and if it is present in an enabled subsystem + * configured to reset states, it will be call when the enabled subsystem + * restarts execution to reset the states. + */ + static void mdlInitializeConditions(SimStruct *S) + { + } +#endif /* MDL_INITIALIZE_CONDITIONS */ + + + +#define MDL_START /* Change to #undef to remove function */ +#if defined(MDL_START) + /* Function: mdlStart ======================================================= + * Abstract: + * This function is called once at start of model execution. If you + * have states that should be initialized once, this is the place + * to do it. + */ + static void mdlStart(SimStruct *S) + { + if (mf624_init(NULL) != 0) + return; + } +#endif /* MDL_START */ + + + +/* Function: mdlOutputs ======================================================= + * Abstract: + * In this function, you compute the outputs of your S-function + * block. + */ +static void mdlOutputs(SimStruct *S, int_T tid) +{ + real_T *y; + uint16_t din; + + if (mf624_check(S) != 0) + return; + + y = (real_T *)ssGetOutputPortSignal(S, 0); + + din = mf624_read16(MFST2REG(mfst, 2, DIN_reg)); + + *y = din & (1 << (int)(CHNL_PRM(S)-1)) ? 0.0 : 1.0; +} + + + +#undef MDL_UPDATE /* Change to #undef to remove function */ +#if defined(MDL_UPDATE) + /* Function: mdlUpdate ====================================================== + * Abstract: + * This function is called once for every major integration time step. + * Discrete states are typically updated here, but this function is useful + * for performing any tasks that should only take place once per + * integration step. + */ + static void mdlUpdate(SimStruct *S, int_T tid) + { + } +#endif /* MDL_UPDATE */ + + + +#undef MDL_DERIVATIVES /* Change to #undef to remove function */ +#if defined(MDL_DERIVATIVES) + /* Function: mdlDerivatives ================================================= + * Abstract: + * In this function, you compute the S-function block's derivatives. + * The derivatives are placed in the derivative vector, ssGetdX(S). + */ + static void mdlDerivatives(SimStruct *S) + { + } +#endif /* MDL_DERIVATIVES */ + + + +/* Function: mdlTerminate ===================================================== + * Abstract: + * In this function, you should perform any actions that are necessary + * at the termination of a simulation. For example, if memory was + * allocated in mdlStart, this is the place to free it. + */ +static void mdlTerminate(SimStruct *S) +{ + mf624_done(); +} + + +/*======================================================* + * See sfuntmpl_doc.c for the optional S-function methods * + *======================================================*/ + +/*=============================* + * Required S-function trailer * + *=============================*/ + +#ifdef MATLAB_MEX_FILE /* Is this file being compiled as a MEX-file? */ +#include "simulink.c" /* MEX-file interface mechanism */ +#else +#include "cg_sfun.h" /* Code generation registration function */ +#endif