Qmax / Mbed 2 deprecated OBD_Accelerometer_Interface

OBD Source Code -Section 1- Without Car / Section 2 - With car

Dependencies:   mbed

main.cpp@2:49712259aa71, 2017-04-03 (annotated)

Committer:
bala0x07
Date:
Mon Apr 03 06:02:26 2017 +0000
Revision:
2:49712259aa71
Parent:
1:c23c05b36e33 
This particular source code has two independent sections, comment any one of the following before proceeding

Who changed what in which revision?

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bala0x07 0:e36d80703ed0 1
bala0x07 0:e36d80703ed0 2 /* ****************************************************************************************************
bala0x07 0:e36d80703ed0 3
bala0x07 0:e36d80703ed0 4 OBD - ACCELEROMETER INTERFACE
bala0x07 0:e36d80703ed0 5
bala0x07 0:e36d80703ed0 6 **************************************************************************************************** */
bala0x07 0:e36d80703ed0 7
bala0x07 0:e36d80703ed0 8 /*
bala0x07 0:e36d80703ed0 9
bala0x07 0:e36d80703ed0 10 NOTE :
bala0x07 0:e36d80703ed0 11 This program aims at interfacing both the OBD scan tool and ADXL345 Accelerometer
bala0x07 0:e36d80703ed0 12 Testing the combined application of both in progress
bala0x07 0:e36d80703ed0 13 Code is subjected to modification
bala0x07 0:e36d80703ed0 14
bala0x07 0:e36d80703ed0 15 Date : 25 - Feb - 2017 (Saturday)
bala0x07 0:e36d80703ed0 16 Author : BALA
bala0x07 0:e36d80703ed0 17
bala0x07 0:e36d80703ed0 18 */
bala0x07 0:e36d80703ed0 19
bala0x07 0:e36d80703ed0 20 #include "mbed.h"
bala0x07 0:e36d80703ed0 21 #include "accelerometer.h"
bala0x07 0:e36d80703ed0 22 #include "obd_libraries.h"
bala0x07 0:e36d80703ed0 23 #include "common_definitions.h"
bala0x07 0:e36d80703ed0 24
bala0x07 0:e36d80703ed0 25 //--------------------------------------------------------------------------------------------------------
bala0x07 0:e36d80703ed0 26
bala0x07 2:49712259aa71 27 I2C i2cm(PB_9, PB_8);
bala0x07 0:e36d80703ed0 28 Serial pcm(USBTX, USBRX);
bala0x07 0:e36d80703ed0 29 Serial OBD_UARTm(PA_0, PA_1);
bala0x07 0:e36d80703ed0 30
bala0x07 0:e36d80703ed0 31 //DigitalOut led(LED1);
bala0x07 0:e36d80703ed0 32
bala0x07 0:e36d80703ed0 33 //InterruptIn double_tap(PC_1); // Pin assignment may vary
bala0x07 0:e36d80703ed0 34 //InterruptIn activity_inactivity(PC_0); // Pin assignment may vary
bala0x07 0:e36d80703ed0 35
bala0x07 0:e36d80703ed0 36 //--------------------------------------------------------------------------------------------------------
bala0x07 0:e36d80703ed0 37
bala0x07 0:e36d80703ed0 38 /* THE FOLLOWING DECLARATIONS ARE GLOBAL VARIABLES */
bala0x07 0:e36d80703ed0 39
bala0x07 0:e36d80703ed0 40 extern char current_speed, previous_speed;
bala0x07 0:e36d80703ed0 41 //extern char speed_threshold = 10;
bala0x07 0:e36d80703ed0 42
bala0x07 0:e36d80703ed0 43 extern float car_battery_voltage;
bala0x07 0:e36d80703ed0 44 extern long vehicle_speed;
bala0x07 0:e36d80703ed0 45
bala0x07 0:e36d80703ed0 46 extern char OBD_UART_RX_Buffer[50];
bala0x07 0:e36d80703ed0 47 char OBD_RxBuffer_End_Pos = 0;
bala0x07 0:e36d80703ed0 48 char OBD_UART_RX_Size = 50;
bala0x07 0:e36d80703ed0 49
bala0x07 0:e36d80703ed0 50 //extern const int slave_address_acc = 0xA6;
bala0x07 0:e36d80703ed0 51 //extern char interrupt_source[2];
bala0x07 0:e36d80703ed0 52 //extern char intr_source_address[2] = {0x30, 0};
bala0x07 0:e36d80703ed0 53 //extern char all_interrupt_clear_command[2] = {0x2E, 0x00};
bala0x07 0:e36d80703ed0 54 //extern char all_interrupt_enable_command[2] = {0x2E, 0x18};
bala0x07 0:e36d80703ed0 55 //extern char activity_interrupt_disable_command[2] = {0x2E, 0x28};
bala0x07 0:e36d80703ed0 56 //extern char inactivity_interrupt_disable_command[2] = {0x2E, 0x30};
bala0x07 0:e36d80703ed0 57 //extern unsigned int interrupt_source_duplicate;
bala0x07 0:e36d80703ed0 58
bala0x07 0:e36d80703ed0 59 extern char obd_reset_cmd[];
bala0x07 0:e36d80703ed0 60
bala0x07 1:c23c05b36e33 61 extern char no_of_stored_dtc;
bala0x07 1:c23c05b36e33 62
bala0x07 0:e36d80703ed0 63 extern void OBD_onDataRx();
bala0x07 0:e36d80703ed0 64 extern void interrupt_sudden_jerk();
bala0x07 0:e36d80703ed0 65 extern void interrupt_activity_inactivity();
bala0x07 0:e36d80703ed0 66
bala0x07 0:e36d80703ed0 67
bala0x07 0:e36d80703ed0 68 //*********************************************************************************************************
bala0x07 0:e36d80703ed0 69
bala0x07 0:e36d80703ed0 70
bala0x07 0:e36d80703ed0 71 /* THE FOLLOWING CODE BLOCK IS THE INTERRUPT SERVICE ROTUINE FOR OBD DATA RECEIVE */
bala0x07 0:e36d80703ed0 72
bala0x07 0:e36d80703ed0 73 //void OBD_onDataRx()
bala0x07 0:e36d80703ed0 74 //{
bala0x07 0:e36d80703ed0 75 // pcm.printf("\r\n ENTERED \r\n");
bala0x07 0:e36d80703ed0 76 // if(OBD_UARTm.readable()) {
bala0x07 0:e36d80703ed0 77 //
bala0x07 0:e36d80703ed0 78 // pcm.putc(OBD_UART_RX_Buffer[OBD_RxBuffer_End_Pos++] = OBD_UARTm.getc());
bala0x07 0:e36d80703ed0 79 // /*
bala0x07 0:e36d80703ed0 80 // if(OBD_RxBuffer_End_Pos >= OBD_UART_RX_Size) {
bala0x07 0:e36d80703ed0 81 // // BUFFER OVERFLOW. What goes here depends on how you want to cope with that situation.
bala0x07 0:e36d80703ed0 82 // // For now just throw everything away.
bala0x07 0:e36d80703ed0 83 // OBD_RxBuffer_End_Pos = 0;
bala0x07 0:e36d80703ed0 84 // }
bala0x07 0:e36d80703ed0 85 // */
bala0x07 0:e36d80703ed0 86 // }
bala0x07 0:e36d80703ed0 87 //}
bala0x07 0:e36d80703ed0 88
bala0x07 0:e36d80703ed0 89 //*********************************************************************************************************
bala0x07 0:e36d80703ed0 90
bala0x07 0:e36d80703ed0 91
bala0x07 0:e36d80703ed0 92 /* THE FOLLOWING SET OF CODE BLOCKS ARE INTERRUPT SERVICE ROTUINES OF ACCELEROMETER */
bala0x07 0:e36d80703ed0 93
bala0x07 0:e36d80703ed0 94
bala0x07 0:e36d80703ed0 95 //*********************************************************************************************************
bala0x07 0:e36d80703ed0 96
bala0x07 0:e36d80703ed0 97 // THE FOLLOWING CODE BLOCK IS THE ISR FOR SUDDEN JERK CONDITION
bala0x07 0:e36d80703ed0 98
bala0x07 0:e36d80703ed0 99 //void interrupt_sudden_jerk()
bala0x07 0:e36d80703ed0 100 //{
bala0x07 0:e36d80703ed0 101 // char count;
bala0x07 0:e36d80703ed0 102 //
bala0x07 0:e36d80703ed0 103 // i2cm.write(slave_address_acc, all_interrupt_clear_command, 2);
bala0x07 0:e36d80703ed0 104 // pcm.printf("~~~ ENTERED SUDDEN JERK CONDITION ~~~\r\n\r\n");
bala0x07 0:e36d80703ed0 105 ///*
bala0x07 0:e36d80703ed0 106 // for(count = 0; count < 2; count++)
bala0x07 0:e36d80703ed0 107 // {
bala0x07 0:e36d80703ed0 108 // led = 1;
bala0x07 0:e36d80703ed0 109 // wait(2);
bala0x07 0:e36d80703ed0 110 // led = 0;
bala0x07 0:e36d80703ed0 111 // wait(1);
bala0x07 0:e36d80703ed0 112 // }
bala0x07 0:e36d80703ed0 113 //*/
bala0x07 0:e36d80703ed0 114 // i2cm.write(slave_address_acc, all_interrupt_enable_command, 2);
bala0x07 0:e36d80703ed0 115 //
bala0x07 0:e36d80703ed0 116 //}
bala0x07 0:e36d80703ed0 117
bala0x07 0:e36d80703ed0 118 //*********************************************************************************************************
bala0x07 0:e36d80703ed0 119 //
bala0x07 0:e36d80703ed0 120 //// THE FOLLWOING CODE BLOCK IS THE MULITIPLEXED ISR FOR BOTH ACTIVITY & INACTIVITY INTERRUPT
bala0x07 0:e36d80703ed0 121 //
bala0x07 0:e36d80703ed0 122 //void interrupt_activity_inactivity()
bala0x07 0:e36d80703ed0 123 //{
bala0x07 0:e36d80703ed0 124 // char count;
bala0x07 0:e36d80703ed0 125 //
bala0x07 0:e36d80703ed0 126 // // The following statement disables all interrupts since no other interrupts must disturb at this point
bala0x07 0:e36d80703ed0 127 //
bala0x07 0:e36d80703ed0 128 // i2cm.write(slave_address_acc, all_interrupt_clear_command, 2);
bala0x07 0:e36d80703ed0 129 //
bala0x07 0:e36d80703ed0 130 // i2cm.write(slave_address_acc, intr_source_address, 1);
bala0x07 0:e36d80703ed0 131 // i2cm.read(slave_address_acc, interrupt_source, 1);
bala0x07 0:e36d80703ed0 132 //
bala0x07 0:e36d80703ed0 133 // char_to_int(interrupt_source[0]); // Coverts intr_source(char) to int & stores in intr_source_d
bala0x07 0:e36d80703ed0 134 //
bala0x07 0:e36d80703ed0 135 // pcm.printf("INT Source = ");
bala0x07 0:e36d80703ed0 136 // print_data_bits((interrupt_source_duplicate));
bala0x07 0:e36d80703ed0 137 //
bala0x07 0:e36d80703ed0 138 ////--------------------------------------------------------------------------------------------------------
bala0x07 0:e36d80703ed0 139 //
bala0x07 0:e36d80703ed0 140 // /* VERIFY WHETHER THE INTERRUPT IS BECAUSE OF ACTIVITY */
bala0x07 0:e36d80703ed0 141 //
bala0x07 0:e36d80703ed0 142 // //if((((int)intr_source) & 0x10) == 0x10)
bala0x07 0:e36d80703ed0 143 // if(interrupt_source_duplicate & 0x10)
bala0x07 0:e36d80703ed0 144 // {
bala0x07 0:e36d80703ed0 145 // /* THE FOLLOWING BLOCK IS USED JUST FOR VERIFICATION PURPOSE AND ARE NOT MANDATORY */
bala0x07 0:e36d80703ed0 146 ///*
bala0x07 0:e36d80703ed0 147 // pcm.printf("ENTERED ACTIVITY CONDITION\r\n\r\n");
bala0x07 0:e36d80703ed0 148 // for(count = 0; count < 10; count++)
bala0x07 0:e36d80703ed0 149 // {
bala0x07 0:e36d80703ed0 150 // led = !led;
bala0x07 0:e36d80703ed0 151 // wait(0.05);
bala0x07 0:e36d80703ed0 152 // }
bala0x07 0:e36d80703ed0 153 //*/
bala0x07 0:e36d80703ed0 154 // fetch_vehicle_speed();
bala0x07 0:e36d80703ed0 155 // previous_speed = vehicle_speed;
bala0x07 0:e36d80703ed0 156 // wait(5);
bala0x07 0:e36d80703ed0 157 // fetch_vehicle_speed();
bala0x07 0:e36d80703ed0 158 // current_speed = vehicle_speed;
bala0x07 0:e36d80703ed0 159 //
bala0x07 0:e36d80703ed0 160 // //if((current_speed > previous_speed) && (current_speed > speed_threshold)) // Decision making regarding vehicle's current state
bala0x07 0:e36d80703ed0 161 // if(current_speed == 79)
bala0x07 0:e36d80703ed0 162 // {
bala0x07 0:e36d80703ed0 163 // i2cm.write(slave_address_acc, activity_interrupt_disable_command, 2); // Disables Activity interrupt & enables Inactivity interrupt
bala0x07 0:e36d80703ed0 164 // pcm.printf("\r\n>>> VEHICLE HAS STARTED FROM STOP <<<");
bala0x07 0:e36d80703ed0 165 // }
bala0x07 0:e36d80703ed0 166 // }
bala0x07 0:e36d80703ed0 167 //
bala0x07 0:e36d80703ed0 168 ////--------------------------------------------------------------------------------------------------------
bala0x07 0:e36d80703ed0 169 //
bala0x07 0:e36d80703ed0 170 // /* VERIFY WHETHER THE INTERRUPT IS BECAUSE OF INACTIVITY */
bala0x07 0:e36d80703ed0 171 //
bala0x07 0:e36d80703ed0 172 // //if((((int)intr_source) & 0x08) == 0x08) // Verify whether it is inactivity interrupt
bala0x07 0:e36d80703ed0 173 // if(interrupt_source_duplicate & 0x08)
bala0x07 0:e36d80703ed0 174 // {
bala0x07 0:e36d80703ed0 175 // /* THE FOLLOWING BLOCK IS USED JUST FOR VERIFICATION PURPOSE AND ARE NOT MANDATORY */
bala0x07 0:e36d80703ed0 176 ///*
bala0x07 0:e36d80703ed0 177 // pcm.printf("ENTERED INACTIVITY CONDITION \r\n\r\n");
bala0x07 0:e36d80703ed0 178 // for(count = 0; count < 10; count++)
bala0x07 0:e36d80703ed0 179 // {
bala0x07 0:e36d80703ed0 180 // led = !led;
bala0x07 0:e36d80703ed0 181 // wait(0.2);
bala0x07 0:e36d80703ed0 182 // }
bala0x07 0:e36d80703ed0 183 //*/
bala0x07 0:e36d80703ed0 184 // fetch_vehicle_speed();
bala0x07 0:e36d80703ed0 185 //
bala0x07 0:e36d80703ed0 186 // if(vehicle_speed == 0) // Decision making regarding vehicle's current state
bala0x07 0:e36d80703ed0 187 // {
bala0x07 0:e36d80703ed0 188 // i2cm.write(slave_address_acc, inactivity_interrupt_disable_command, 2); // Disables Inactivity interrupt & enables Activity interrupt
bala0x07 0:e36d80703ed0 189 // pcm.printf("\r\n>>> VEHICLE HAS STOPPED FROM START <<<");
bala0x07 0:e36d80703ed0 190 // }
bala0x07 0:e36d80703ed0 191 // }
bala0x07 0:e36d80703ed0 192 //}
bala0x07 0:e36d80703ed0 193
bala0x07 0:e36d80703ed0 194
bala0x07 0:e36d80703ed0 195 //*********************************************************************************************************
bala0x07 0:e36d80703ed0 196
bala0x07 0:e36d80703ed0 197 int main(void)
bala0x07 0:e36d80703ed0 198 {
bala0x07 0:e36d80703ed0 199 //OBD_UARTm.attach(&OBD_onDataRx);
bala0x07 0:e36d80703ed0 200 //activity_inactivity.rise(interrupt_activity_inactivity); // Attach the address of interrupt_activity_inactivity function to rising edge
bala0x07 0:e36d80703ed0 201 //double_tap.rise(interrupt_sudden_jerk);
bala0x07 0:e36d80703ed0 202
bala0x07 2:49712259aa71 203 pcm.baud(9600);
bala0x07 2:49712259aa71 204 OBD_UARTm.baud(9600);
bala0x07 0:e36d80703ed0 205
bala0x07 0:e36d80703ed0 206
bala0x07 0:e36d80703ed0 207 pcm.printf("\r\n\r\n\t\t>>>>>------>> OBD - ACCELEROMETER INTERFACE <<------<<<<<\r\n\r\n");
bala0x07 2:49712259aa71 208
bala0x07 0:e36d80703ed0 209 initialize_obd(); // OBD- scan tool initialization would be done here
bala0x07 0:e36d80703ed0 210
bala0x07 0:e36d80703ed0 211 fetch_battery_voltage(); // OBD - section
bala0x07 0:e36d80703ed0 212
bala0x07 2:49712259aa71 213 fetch_vin_number();
bala0x07 2:49712259aa71 214
bala0x07 0:e36d80703ed0 215 fetch_vehicle_speed();
bala0x07 0:e36d80703ed0 216
bala0x07 2:49712259aa71 217 fetch_engine_rpm();
bala0x07 2:49712259aa71 218
bala0x07 2:49712259aa71 219 //rpm_padding_for_comm_test();
bala0x07 2:49712259aa71 220
bala0x07 2:49712259aa71 221
bala0x07 1:c23c05b36e33 222 check_for_MIL();
bala0x07 1:c23c05b36e33 223
bala0x07 2:49712259aa71 224 check_for_dtc();
bala0x07 2:49712259aa71 225
bala0x07 2:49712259aa71 226
bala0x07 2:49712259aa71 227
bala0x07 2:49712259aa71 228
bala0x07 2:49712259aa71 229
bala0x07 2:49712259aa71 230 //if(no_of_stored_dtc > 0)
bala0x07 2:49712259aa71 231 //check_for_dtc();
bala0x07 2:49712259aa71 232 //check_for_dtc();
bala0x07 2:49712259aa71 233
bala0x07 2:49712259aa71 234
bala0x07 0:e36d80703ed0 235 //initialize_accelerometer(); // All Accerometer configurations will be done here
bala0x07 0:e36d80703ed0 236
bala0x07 0:e36d80703ed0 237 //while(1); // Wait forever, let the ISR do the rest
bala0x07 0:e36d80703ed0 238
bala0x07 0:e36d80703ed0 239
bala0x07 0:e36d80703ed0 240 return 0;
bala0x07 0:e36d80703ed0 241
bala0x07 0:e36d80703ed0 242 }
bala0x07 0:e36d80703ed0 243
bala0x07 0:e36d80703ed0 244 //*********************************************************************************************************