main.cpp

00001 /*****************************************************************/
00002 /*               How to use State Machines in C                  */
00003 /*                        Switch|Case                            */
00004 /*****************************************************************/
00005 
00006 //Librarys:
00007 #include "mbed.h"
00008 
00009 //Configuration:
00010 
00011 DigitalOut myled(LED1);
00012 Serial pc(USBTX,USBRX);
00013 
00014 //Functions:
00015 void SendThings(void);  // Sends Something to the computer
00016 void LedON(void);       // Turns RED LED ON
00017 void LedOF(void);       // Turns RED LED OFF
00018 void PrepThings(void);  // Prepares Something
00019 //Function Pointer:
00020     void (*state)()=SendThings;;
00021 
00022 
00023 int main() {
00024 
00025 //State Machine    
00026     while(1) {
00027         (*state)();        
00028         wait(1);
00029     }
00030 }
00031 void SendThings(void){
00032     pc.printf("Sedingthings");
00033     state=LedON;
00034     }
00035 void LedON(void){
00036     pc.printf("ON");
00037     state=LedOF;
00038     }
00039 void LedOF(void){
00040     pc.printf("OFF");
00041     state=PrepThings;
00042     }
00043 void PrepThings(void){
00044     pc.printf("preparing");
00045     state=SendThings;
00046     }