ecu_simulator.h

00001 #ifndef ECU_SIMULATOR_H
00002 #define ECU_SIMULATOR_H
00003 
00004 //#define CANSPEED_125      125000        // CAN speed at 125 kbps
00005 //#define CANSPEED_250      250000        // CAN speed at 250 kbps
00006 #define CANSPEED_500      500000        // CAN speed at 500 kbps
00007 
00008  /* Details from http://en.wikipedia.org/wiki/OBD-II_PIDs */
00009 #define MODE1               0x01        //Show current data
00010 #define MODE2               0x02        //Show freeze frame data
00011 #define MODE3               0x03        //Show stored Diagnostic Trouble Codes
00012 #define MODE4               0x04        //Clear Diagnostic Trouble Codes and stored values
00013 
00014 #define PID_SUPPORTED       0x00
00015 #define MONITOR_STATUS      0x01
00016 #define ENGINE_COOLANT_TEMP 0x05
00017 #define ENGINE_RPM          0x0C
00018 #define VEHICLE_SPEED       0x0D
00019 #define MAF_SENSOR          0x10
00020 #define THROTTLE            0x11
00021 #define O2_VOLTAGE          0x14
00022 
00023 #define MODE1_RESPONSE      0x41
00024 #define MODE3_RESPONSE      0x43
00025 #define MODE4_RESPONSE      0x44
00026 #define PID_REQUEST         0x7DF
00027 #define PID_REPLY           0x7E8
00028 
00029 #define ESPAR_CMD           0x7A0       // COMMAND ID
00030 #define ESPAR_RES           0x73C       // response id
00031 
00032 typedef struct{  
00033         unsigned char coolant_temp;
00034         unsigned int engine_rpm;  
00035         unsigned char throttle_position;
00036         unsigned char vehicle_speed;
00037         unsigned int maf_airflow;
00038         unsigned int o2_voltage;
00039         unsigned char dtc;
00040         unsigned char active_fault;
00041 }ecu_t;
00042 
00043 extern ecu_t ecu;
00044 
00045 namespace mbed { 
00046 
00047 class ecu_sim{
00048 
00049     public:
00050 
00051         ecu_sim(int can_speed);
00052         void canspeed(int can_speed);
00053         unsigned char request(void);
00054     
00055     private: 
00056 
00057         int i;
00058  
00059     };
00060 } 
00061 
00062 
00063 
00064 #endif