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 typedef struct{
00030     
00031         unsigned char coolant_temp;
00032         unsigned int engine_rpm;  
00033         unsigned char throttle_position;
00034         unsigned char vehicle_speed;
00035         unsigned int maf_airflow;
00036         unsigned int o2_voltage;
00037         unsigned char dtc;
00038        
00039 }ecu_t;
00040 
00041 extern ecu_t ecu;
00042 
00043 namespace mbed { 
00044 
00045 class ecu_sim{
00046 
00047     public:
00048 
00049         ecu_sim(int can_speed);
00050         void canspeed(int can_speed);
00051         unsigned char request(void);
00052     
00053     private: 
00054 
00055         int i;
00056  
00057     };
00058 } 
00059 
00060 
00061 
00062 #endif