/*?
?*?File?????:?sfun_pwm.c
?*?Abstract:
?*???
?*???This?file?represents?an?S-function?example?which?demonstrates?the?S-function?macros?for?using?a
?*???controllable?sample?time.?This?S-function?generates?PWM?（Pulse-width?modulation）?signals?based
?*???on?the?input?period?and?duty?cycle?signals.
?*
?*???This?S-function?registers?a?controllable?sample?time?with?which?the?S-function?can?schedule?the
?*???next?hit?when?changing?the?output?value.?The?S-function?has?two?input?ports?and?one?output
?*???port.?The?first?input?port?is?the?duty?cycle?signal?and?the?second?is?the?period?signal.?The
?*???S-function?has?two?block?parameters:?the?amplitude?of?the?generated?PWM?signal?and?the
?*???resolution?of?the?controllable?sample?time.
?*?
?*???This?S-function?illustrates?the?use?of?the?S-function?macro:
?*???????
?*????????ssSetControllableSampleTime（S?0?resolution）
?*
?*???to?register?a?controllable?sample?time?in?mdlInitializeSampleTimes（）.?The?resolution?must?be?a
?*???positive?finite?number?that?defines?the?fundamental?step?size?that?the?S-function?can?schedule
?*???the?next?hit?for?this?sample?time.
?*
?*???This?S-function?illustrates?the?use?of?the?S-function?macro:
?*
?*???????ssSetNumTicksToNextHitForControllableSampleTime（S?0?numTick）
?*??
?*???to?schedule?the?next?hit?of?the?controllable?sample?time.?The?next?hit?happens?after?t?=
?*???t_current?+?numTick?*?resolution.?numTick?must?be?a?positive?integer.?The?S-function?must?use
?*???this?macro?to?schedule?the?execution?of?the?controllable?sample?time?in
?*???mdlInitializeConditions（）?and?mdlOutputs（）.
?*
?*?Copyright?2017?The?MathWorks?Inc.
?*/

#define?S_FUNCTION_NAME?mysfun_generate??????????????????????????//函數名
#define?S_FUNCTION_LEVEL?2???????????????????????????????????????//sfun的深度

#include?“simstruc.h“
#include?“assert.h“

/*?Function:?mdlInitializeSizes?================================================
?*?Abstract:
?*
?*???Register?an?S-function?with?two?input?ports?one?output?port?and?three?DWorks.?Specify?the
?*???number?of?sample?times?to?1.
?*
?*/
static?void?mdlInitializeSizes（SimStruct*?S）
{
????//這個函數用來初始化的，主要是設置輸入、輸出和參數的。
????
????if?（!ssSetNumInputPorts（S?2））?return;//設置輸入信號2個
????ssSetInputPortWidth（S?0?1）;//設置輸入變量0的維數為1
????ssSetInputPortDirectFeedThrough（S?0?1）;//?設置輸入端口的信號是否mdlOutputs函數中使用，這兒設置為true
????ssSetInputPortWidth（S?1?1）;//設置輸入變量1的維數為1
????ssSetInputPortDirectFeedThrough（S?1?1）;//?設置輸入端口的信號是否mdlOutputs函數中使用，這兒設置為true
????
????if?（!ssSetNumOutputPorts（S?1））?return;//設置輸出變量的個數
????ssSetOutputPortWidth（S?0?1）;//設置輸出變量0的維數為1維

????ssSetNumSFcnParams（S?2）;//設置參數2個
????if?（ssGetNumSFcnParams（S）?!=?ssGetSFcnParamsCount（S））?{
????????return;
????}
????
????ssSetNumContStates（S?0）;//設置連續狀態變量的
????ssSetNumDiscStates（S?0）;
????ssSetNumDWork（S?3）;
????ssSetDWorkWidth（S?0?1）;//設置離散狀態變量的
????ssSetDWorkDataType（S?0?SS_BOOLEAN）;
????ssSetDWorkWidth（S?1?1）;
????ssSetDWorkDataType（S

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????6992??2020-06-03?23:17??mysfun_generate.c

?????文件??????20480??2020-06-03?22:48??mysfun_generate.mexw64

?????文件??????24325??2020-06-03?22:51??generate.slx

-----------?---------??----------?-----??----

????????????????51797????????????????????3