ecu_reader.h

00001 #ifndef ECU_READER_H
00002 #define ECU_READER_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 #define CANSPEED_1M      1000000        // CAN speed at 1Mbps
00008 
00009  /* Details from http://en.wikipedia.org/wiki/OBD-II_PIDs */
00010 #define ENGINE_COOLANT_TEMP 0x05
00011 #define ENGINE_RPM          0x0C
00012 #define VEHICLE_SPEED       0x0D
00013 #define MAF_SENSOR          0x10
00014 #define THROTTLE            0x11
00015 #define O2_VOLTAGE          0x14
00016 
00017 #define PID_REQUEST         0x7DF
00018 #define PID_REPLY           0x7E8
00019 
00020 #define TIMEOUT 200
00021 
00022 namespace mbed { 
00023 
00024 class ecu_reader{
00025 
00026 public:
00027 
00028     ecu_reader(int can_speed);
00029 
00030     unsigned char request(unsigned char pid,  char *buffer);
00031 
00032 private: 
00033 
00034     int i;
00035  
00036 };
00037 
00038 
00039 
00040 
00041 
00042     } 
00043 
00044 
00045 
00046 #endif