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OBD II library
Diff: OBD2.h
- Revision:
- 0:804498f871bc
diff -r 000000000000 -r 804498f871bc OBD2.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/OBD2.h Wed Dec 20 07:20:57 2017 +0000
@@ -0,0 +1,158 @@
+
+#define PID_REQUEST_ALL 0x7DF
+#define PID_REQUEST 0x7E0
+#define PID_REQUEST_ECU2 0x7E1
+#define PID_REPLY 0x7E8
+#define PID_REPLY_ECU2 0x7E9
+
+/* Details from http://en.wikipedia.org/wiki/OBD-II_PIDs */
+#define PID_0_20 0x00 //PID 0 - 20 supported
+#define STATUS_DTC 0x01 ///
+#define FREEZE_DTC 0x02 ///
+#define FUEL_SYS_STATUS 0x03 ///
+#define ENGINE_LOAD 0x04 //
+#define ENGINE_COOLANT_TEMP 0x05
+#define ST_FUEL_TRIM_1 0x06 ///
+#define LT_FUEL_TRIM_1 0x07 ///
+#define ST_FUEL_TRIM_2 0x08 ///
+#define LT_FUEL_TRIM_2 0x09 ///
+#define FUEL_PRESSURE 0x0A //
+#define INTAKE_PRESSURE 0x0B //
+#define ENGINE_RPM 0x0C
+#define VEHICLE_SPEED 0x0D
+#define TIMING_ADVANCE 0x0E //
+#define INTAKE_TEMP 0x0F //
+#define MAF_SENSOR 0x10
+#define THROTTLE 0x11
+#define COMMANDED_SEC_AIR 0x12 ///
+#define O2_SENS_PRES 0x13 ///
+#define O2_B1S1_VOLTAGE 0x14 ///
+#define O2_B1S2_VOLTAGE 0x15 ///
+#define O2_B1S3_VOLTAGE 0x16 ///
+#define O2_B1S4_VOLTAGE 0x17 ///
+#define O2_B2S1_VOLTAGE 0x18 ///
+#define O2_B2S2_VOLTAGE 0x19 ///
+#define O2_B2S3_VOLTAGE 0x1A ///
+#define O2_B2S4_VOLTAGE 0x1B ///
+#define OBDII_STANDARDS 0x1C //List of OBDII Standars the car conforms to
+#define O2_SENS_PRES_ALT 0x1D ///
+#define AUX_IN_STATUS 0x1E ///
+#define ENGINE_RUNTIME 0x1F //
+#define PID_21_40 0x20 //PID 21-40 supported
+#define DIST_TRAVELED_MIL 0x21 ///
+#define FUEL_RAIL_PRESSURE 0x22 //
+#define FUEL_RAIL_PRES_ALT 0x23 ///
+#define O2S1_WR_LAMBDA_V 0x24 ///
+#define O2S2_WR_LAMBDA_V 0x25 ///
+#define O2S3_WR_LAMBDA_V 0x26 ///
+#define O2S4_WR_LAMBDA_V 0x27 ///
+#define O2S5_WR_LAMBDA_V 0x28 ///
+#define O2S6_WR_LAMBDA_V 0x29 ///
+#define O2S7_WR_LAMBDA_V 0x2A ///
+#define O2S8_WR_LAMBDA_V 0x2B ///
+#define COMMANDED_EGR 0x2C //
+#define EGR_ERROR 0x2D //
+#define COMMANDED_EVAP_P 0x2E ///
+#define FUEL_LEVEL 0x2F //
+#define WARMUPS_SINCE_CLR 0x30 ///
+#define DIST_SINCE_CLR 0x31 ///
+#define EVAP_PRESSURE 0x32 //
+#define BAROMETRIC_PRESSURE 0x33 //
+#define O2S1_WR_LAMBDA_I 0x34 ///
+#define O2S2_WR_LAMBDA_I 0x35 ///
+#define O2S3_WR_LAMBDA_I 0x36 ///
+#define O2S4_WR_LAMBDA_I 0x37 ///
+#define O2S5_WR_LAMBDA_I 0x38 ///
+#define O2S6_WR_LAMBDA_I 0x39 ///
+#define O2S7_WR_LAMBDA_I 0x3A ///
+#define O2S8_WR_LAMBDA_I 0x3B ///
+#define CAT_TEMP_B1S1 0x3C ///
+#define CAT_TEMP_B1S2 0x3E ///
+#define CAT_TEMP_B2S1 0x3D ///
+#define CAT_TEMP_B2S2 0x3F ///
+#define PID_41_60 0x40 //PID 41-60 supported
+#define MONITOR_STATUS 0x41 ///
+#define ECU_VOLTAGE 0x42 //
+#define ABSOLUTE_LOAD 0x43 //
+#define COMMANDED_EQUIV_R 0x44 ///
+#define REL_THROTTLE_POS 0x45 ///
+#define AMB_AIR_TEMP 0x46 ///
+#define ABS_THROTTLE_POS_B 0x47 ///
+#define ABS_THROTTLE_POS_C 0x48 ///
+#define ACCEL_POS_D 0x49 ///
+#define ACCEL_POS_E 0x4A ///
+#define ACCEL_POS_F 0x4B ///
+#define COMMANDED_THROTTLE 0x4C ///
+#define TIME_RUN_WITH_MIL 0x4D ///
+#define TIME_SINCE_CLR 0x4E ///
+#define MAX_R_O2_VI_PRES 0x4F ///
+#define MAX_AIRFLOW_MAF 0x50 ///
+#define FUEL_TYPE 0x51 //
+#define ETHANOL_PERCENT 0x52 //
+#define ABS_EVAP_SYS_PRES 0x53 ///
+#define EVAP_SYS_PRES 0x54 ///
+#define ST_O2_TRIM_B1B3 0x55 ///
+#define LT_O2_TRIM_B1B3 0x56 ///
+#define ST_02_TRIM_B2B4 0x57 ///
+#define LT_O2_TRIM_B2B4 0x58 ///
+#define ABS_FUEL_RAIL_PRES 0x59 ///
+#define REL_ACCEL_POS 0x5A ///
+#define HYBRID_BATT_PCT 0x5B ///
+#define ENGINE_OIL_TEMP 0x5C ///
+#define FUEL_TIMING 0x5D //
+#define FUEL_RATE 0x5E //
+#define EMISSIONS_STANDARD 0x5F ///
+#define DEMANDED_TORQUE 0x61 ///
+#define ACTUAL_TORQUE 0x62 ///
+#define REFERENCE_TORQUE 0x63 //
+#define ENGINE_PCT_TORQUE 0x64 ///
+#define AUX_IO_SUPPORTED 0x65 ///
+#define P_MAF_SENSOR 0x66 ///
+#define P_ENGINE_COOLANT_T 0x67 ///
+#define P_INTAKE_TEMP 0x68 ///
+#define P_COMMANDED_EGR 0x69 ///
+#define P_COMMANDED_INTAKE 0x6A ///
+#define P_EGR_TEMP 0x6B ///
+#define P_COMMANDED_THROT 0x6C ///
+#define P_FUEL_PRESSURE 0x6D ///
+#define P_FUEL_INJ_PRES 0x6E ///
+#define P_TURBO_PRESSURE 0x6F ///
+#define P_BOOST_PRES_CONT 0x70 ///
+#define P_VGT_CONTROL 0x71 ///
+#define P_WASTEGATE_CONT 0x72 ///
+#define P_EXHAUST_PRESSURE 0x73 ///
+#define P_TURBO_RPM 0x74 ///
+#define P_TURBO_TEMP1 0x75 ///
+#define P_TURBO_TEMP2 0x76 ///
+#define P_CACT 0x77 ///
+#define P_EGT_B1 0x78 ///
+#define P_EGT_B2 0x79 ///
+#define P_DPF1 0x7A ///
+#define P_DPF2 0x7B ///
+#define P_DPF_TEMP 0x7C ///
+#define P_NOX_NTE_STATUS 0x7D ///
+#define P_PM_NTE_STATUS 0x7E ///
+#define P_ENGINE_RUNTUME 0x7F ///
+#define P_ENGINE_AECD_1 0x81 ///
+#define P_ENGINE_AECD_2 0x82 ///
+#define P_NOX_SENSOR 0x83 ///
+#define P_MANIFOLD_TEMP 0x84 ///
+#define P_NOX_SYSTEM 0x85 ///
+#define P_PM_SENSOR 0x86 ///
+#define P_IN_MANIF_TEMP 0x87 ///
+
+
+class OBD2 {
+public:
+ OBD2 (PinName rd, PinName td, int speed = 500000);
+ int request (int pid);
+ float read ();
+
+private:
+ CAN _can;
+ int _pid;
+ uint8_t _data[5];
+ volatile int _received;
+
+ void isrRecv ();
+};