Mohamed Azad / Mbed 2 deprecated QM_BAE_review_1_EPS_faults

Added EPS faults

Dependencies:   FreescaleIAP mbed-rtos mbed

Fork of QM_BAE_review_1 by Team Fox

EPS.cpp@15:e09aaaccf134, 2016-04-19 (annotated)

Committer:
lakshya
Date:
Tue Apr 19 21:27:07 2016 +0000
Revision:
15:e09aaaccf134
Parent:
7:a46a1dee4497
Child:
16:5f0f2a3f3e8d
checking

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sakthipriya 0:7b4c00e3912f 1 #include "EPS.h"
sakthipriya 0:7b4c00e3912f 2 #include "pin_config.h"
sakthipriya 6:036d08b62785 3 #include "iostream"
sakthipriya 0:7b4c00e3912f 4 /***********************************************global variable declaration***************************************************************/
sakthipriya 0:7b4c00e3912f 5 extern uint32_t BAE_STATUS;
sakthipriya 0:7b4c00e3912f 6 extern uint32_t BAE_ENABLE;
sakthipriya 6:036d08b62785 7 extern uint8_t BAE_data[74];
sakthipriya 6:036d08b62785 8 extern char BAE_chardata[74];
sakthipriya 0:7b4c00e3912f 9
sakthipriya 0:7b4c00e3912f 10 //m_I2C.frequency(10000)
lakshya 15:e09aaaccf134 11 const char RCOMP0= 0x97;// don't know what it is now
sakthipriya 0:7b4c00e3912f 12 BAE_HK_actual actual_data;
sakthipriya 0:7b4c00e3912f 13 BAE_HK_quant quant_data;
sakthipriya 0:7b4c00e3912f 14 BAE_HK_min_max bae_HK_minmax;
sakthipriya 0:7b4c00e3912f 15 BAE_HK_arch arch_data;
sakthipriya 0:7b4c00e3912f 16
sakthipriya 5:bb592f3185cc 17
sakthipriya 0:7b4c00e3912f 18 //......................................Peripheral declarations.........................................................//
sakthipriya 0:7b4c00e3912f 19 Serial pc_eps(USBTX,USBRX);
sakthipriya 3:07e15677a75c 20
sakthipriya 0:7b4c00e3912f 21 I2C m_I2C(PIN85,PIN84);
sakthipriya 0:7b4c00e3912f 22 DigitalOut TRXY(TRXY_DR_EN); //active high
sakthipriya 0:7b4c00e3912f 23 DigitalOut TRZ(TRZ_DR_EN); //active high
sakthipriya 0:7b4c00e3912f 24 DigitalOut EN3V3A(ENBL3V3A);
sakthipriya 0:7b4c00e3912f 25 DigitalOut EN_BTRY_HT(BATT_HEAT);
sakthipriya 0:7b4c00e3912f 26 //DigitalIn BTRY_HT_OUTPUT(BATT_HEAT_OUTPUT);
sakthipriya 3:07e15677a75c 27 //AnalogIn Vbatt_ang(VBATT);
sakthipriya 3:07e15677a75c 28 AnalogIn Batt_voltage(PIN20); //Battery voltage
sakthipriya 3:07e15677a75c 29
lakshya 15:e09aaaccf134 30 SPI spi_bt(PIN99,PIN100,PIN98); //MOSI,MISO,SLK // battery temp something 3
lakshya 15:e09aaaccf134 31 DigitalOut ssn1(PIN19); //Slave select1 // low line master talks
sakthipriya 2:c823d84b4cb0 32 DigitalOut ssn2(PIN21);//Slave select2
sakthipriya 2:c823d84b4cb0 33 //DigitalOut PS(PTB0);
sakthipriya 2:c823d84b4cb0 34 //DigitalOut HS(PTB1);
sakthipriya 2:c823d84b4cb0 35
sakthipriya 3:07e15677a75c 36 AnalogIn CurrentInput(PIN54); // Input from Current Multiplexer //PIN54
sakthipriya 3:07e15677a75c 37 AnalogIn VoltageInput(PIN53); // Input from Voltage Multiplexer //PIN53
sakthipriya 3:07e15677a75c 38 AnalogIn BAE_temp_sensor(PIN55); //Input from BAE temp sensor
sakthipriya 3:07e15677a75c 39
lakshya 15:e09aaaccf134 40 /*mux for reading value one by one*/
sakthipriya 3:07e15677a75c 41 DigitalOut SelectLinea3 (PIN46); // MSB of Select Lines
sakthipriya 3:07e15677a75c 42 DigitalOut SelectLinea2 (PIN45);
sakthipriya 3:07e15677a75c 43 DigitalOut SelectLinea1 (PIN44);
sakthipriya 3:07e15677a75c 44 DigitalOut SelectLinea0 (PIN43); // LSB of Select Lines
sakthipriya 3:07e15677a75c 45
sakthipriya 3:07e15677a75c 46 DigitalOut SelectLineb3 (PIN56); // MSB of Select Lines
sakthipriya 3:07e15677a75c 47 DigitalOut SelectLineb2 (PIN57);
sakthipriya 3:07e15677a75c 48 DigitalOut SelectLineb1 (PIN58);
sakthipriya 3:07e15677a75c 49 DigitalOut SelectLineb0 (PIN59); // LSB of Select Lines
sakthipriya 0:7b4c00e3912f 50
sakthipriya 0:7b4c00e3912f 51 //*********************************************************flags********************************************************//
sakthipriya 0:7b4c00e3912f 52 extern char EPS_INIT_STATUS ;
sakthipriya 0:7b4c00e3912f 53 extern char EPS_BATTERY_GAUGE_STATUS ;
sakthipriya 0:7b4c00e3912f 54 extern char EPS_MAIN_STATUS;
sakthipriya 0:7b4c00e3912f 55 extern char EPS_BATTERY_TEMP_STATUS ;
sakthipriya 0:7b4c00e3912f 56 extern char EPS_STATUS ;
sakthipriya 0:7b4c00e3912f 57
sakthipriya 0:7b4c00e3912f 58 extern char EPS_BATTERY_HEAT_ENABLE ;
sakthipriya 0:7b4c00e3912f 59
sakthipriya 0:7b4c00e3912f 60 //........................................... FUCTIONS.................................................//
sakthipriya 0:7b4c00e3912f 61
sakthipriya 0:7b4c00e3912f 62 void FCTN_EPS_INIT()
sakthipriya 0:7b4c00e3912f 63 {
sakthipriya 0:7b4c00e3912f 64 printf("\n\r eps init \n");
sakthipriya 0:7b4c00e3912f 65 EPS_INIT_STATUS = 's' ; //set EPS_INIT_STATUS flag
sakthipriya 3:07e15677a75c 66 // FLAG();
sakthipriya 0:7b4c00e3912f 67 FCTN_BATTERYGAUGE_INIT();
sakthipriya 3:07e15677a75c 68 FCTN_BATTTEMP_INIT();
sakthipriya 0:7b4c00e3912f 69 EN3V3A = 1; //enable dc dc converter A
lakshya 15:e09aaaccf134 70 char value=alertFlags(); // initialization part of battery gauge
sakthipriya 0:7b4c00e3912f 71 unsigned short value_u= (short int )value;
sakthipriya 0:7b4c00e3912f 72 value_u &=0x0001;
sakthipriya 0:7b4c00e3912f 73 if(value_u ==0x0001) // battery gauge not initialised
sakthipriya 0:7b4c00e3912f 74 {
sakthipriya 0:7b4c00e3912f 75 actual_data.power_mode = 1;
sakthipriya 0:7b4c00e3912f 76 EPS_BATTERY_GAUGE_STATUS = 'c'; //clear EPS_BATTERY_GAUGE_STATUS
sakthipriya 0:7b4c00e3912f 77 }
sakthipriya 0:7b4c00e3912f 78 else
sakthipriya 0:7b4c00e3912f 79 {
sakthipriya 0:7b4c00e3912f 80 actual_data.Batt_gauge_actual[1] = soc();
lakshya 15:e09aaaccf134 81 actual_data.Batt_voltage_actual = Batt_voltage.read()*3.3; //1 corresponds to 3.3 scaling factor
sakthipriya 0:7b4c00e3912f 82 FCTN_EPS_POWERMODE(actual_data.Batt_gauge_actual[1]);
sakthipriya 0:7b4c00e3912f 83 EPS_BATTERY_GAUGE_STATUS = 's'; //set EPS_BATTERY_GAUGE_STATUS
sakthipriya 0:7b4c00e3912f 84 }
sakthipriya 0:7b4c00e3912f 85
sakthipriya 0:7b4c00e3912f 86 EPS_INIT_STATUS = 'c' ; //clear EPS_INIT_STATUS flag
sakthipriya 0:7b4c00e3912f 87
sakthipriya 0:7b4c00e3912f 88 }
sakthipriya 0:7b4c00e3912f 89
sakthipriya 0:7b4c00e3912f 90 //----------------------------------------------------Power algo code--------------------------------------------------------------------//
lakshya 15:e09aaaccf134 91 /*update the power modes*/
lakshya 15:e09aaaccf134 92
sakthipriya 0:7b4c00e3912f 93 void FCTN_EPS_POWERMODE(float soc) //dummy algo
sakthipriya 0:7b4c00e3912f 94 {
sakthipriya 0:7b4c00e3912f 95 if(soc >= 80)
sakthipriya 0:7b4c00e3912f 96 actual_data.power_mode = 4;
sakthipriya 0:7b4c00e3912f 97 else if(soc >= 70 & soc < 80)
sakthipriya 0:7b4c00e3912f 98 actual_data.power_mode = 3;
sakthipriya 0:7b4c00e3912f 99 else if(soc >= 60 & soc < 70)
sakthipriya 0:7b4c00e3912f 100 actual_data.power_mode = 2;
sakthipriya 0:7b4c00e3912f 101 else if(soc < 60)
sakthipriya 0:7b4c00e3912f 102 actual_data.power_mode = 1;
sakthipriya 0:7b4c00e3912f 103 }
sakthipriya 0:7b4c00e3912f 104
sakthipriya 0:7b4c00e3912f 105 //...................................................HK...........................................//
lakshya 15:e09aaaccf134 106 /*reading values*/
sakthipriya 3:07e15677a75c 107
sakthipriya 3:07e15677a75c 108 void FCTN_HK_MAIN()
sakthipriya 3:07e15677a75c 109 {
sakthipriya 3:07e15677a75c 110 int Iteration=0;
sakthipriya 3:07e15677a75c 111
sakthipriya 3:07e15677a75c 112 SelectLinea0=0;
sakthipriya 3:07e15677a75c 113 SelectLinea1=0;
sakthipriya 3:07e15677a75c 114 SelectLinea2=0;
sakthipriya 3:07e15677a75c 115 SelectLinea3=0;
sakthipriya 3:07e15677a75c 116
sakthipriya 3:07e15677a75c 117 SelectLineb0=0;
sakthipriya 3:07e15677a75c 118 SelectLineb1=0;
sakthipriya 3:07e15677a75c 119 SelectLineb2=0;
sakthipriya 3:07e15677a75c 120 SelectLineb3=0;
sakthipriya 3:07e15677a75c 121
sakthipriya 3:07e15677a75c 122 //collecting data
sakthipriya 3:07e15677a75c 123 for(Iteration=0; Iteration<16; Iteration++){
sakthipriya 3:07e15677a75c 124
sakthipriya 3:07e15677a75c 125 actual_data.voltage_actual[Iteration]=VoltageInput.read();
sakthipriya 3:07e15677a75c 126 actual_data.current_actual[Iteration]=CurrentInput.read();
sakthipriya 3:07e15677a75c 127
sakthipriya 3:07e15677a75c 128 SelectLinea0=!(SelectLinea0);
sakthipriya 3:07e15677a75c 129 if(Iteration%2==1)
sakthipriya 3:07e15677a75c 130 SelectLinea1=!(SelectLinea1);
sakthipriya 3:07e15677a75c 131 if(Iteration%4==3)
sakthipriya 3:07e15677a75c 132 SelectLinea2=!(SelectLinea2);
sakthipriya 3:07e15677a75c 133 if(Iteration%8==7)
sakthipriya 3:07e15677a75c 134 SelectLinea3=!(SelectLinea3);
sakthipriya 3:07e15677a75c 135 int s0,s1,s2,s3;
sakthipriya 3:07e15677a75c 136 s0=SelectLineb0=SelectLinea0;
sakthipriya 3:07e15677a75c 137 s1=SelectLineb1=SelectLinea2;
sakthipriya 3:07e15677a75c 138 s2=SelectLineb2=SelectLinea2;
sakthipriya 3:07e15677a75c 139 s3=SelectLineb3=SelectLinea3;
sakthipriya 3:07e15677a75c 140 printf("\n\r %d %d %d %d", s0,s1,s2,s3);
sakthipriya 3:07e15677a75c 141
sakthipriya 3:07e15677a75c 142 }
sakthipriya 3:07e15677a75c 143 for(Iteration=0; Iteration<16; Iteration++){
sakthipriya 3:07e15677a75c 144
sakthipriya 3:07e15677a75c 145 if(Iteration==14)
sakthipriya 3:07e15677a75c 146 actual_data.voltage_actual[Iteration]= (-90.7*3.3*actual_data.voltage_actual[Iteration])+190.1543;
sakthipriya 3:07e15677a75c 147 else
sakthipriya 3:07e15677a75c 148 actual_data.voltage_actual[Iteration]= actual_data.voltage_actual[Iteration]*3.3*5.63;
sakthipriya 3:07e15677a75c 149 }
sakthipriya 3:07e15677a75c 150
sakthipriya 3:07e15677a75c 151 for(Iteration=0;Iteration<12;Iteration++){
sakthipriya 3:07e15677a75c 152 if(Iteration<8)
sakthipriya 3:07e15677a75c 153 actual_data.current_actual[Iteration]= actual_data.current_actual[Iteration]*3.3/(50*rsens);
sakthipriya 3:07e15677a75c 154 else
sakthipriya 3:07e15677a75c 155 actual_data.current_actual[Iteration]=actual_data.current_actual[Iteration]*3.3;
sakthipriya 3:07e15677a75c 156 int resistance;
sakthipriya 3:07e15677a75c 157
sakthipriya 3:07e15677a75c 158 resistance=24000*actual_data.current_actual[Iteration]/(3.3-actual_data.current_actual[Iteration]);
sakthipriya 3:07e15677a75c 159 if(actual_data.current_actual[Iteration]>1.47)
sakthipriya 3:07e15677a75c 160 {
sakthipriya 3:07e15677a75c 161 actual_data.current_actual[Iteration]=3694/log(24.032242*resistance);
sakthipriya 3:07e15677a75c 162 }
sakthipriya 3:07e15677a75c 163 else{
sakthipriya 3:07e15677a75c 164
sakthipriya 3:07e15677a75c 165 actual_data.current_actual[Iteration]=3365.4/log(7.60573*resistance);
sakthipriya 3:07e15677a75c 166 }
sakthipriya 3:07e15677a75c 167 }
sakthipriya 3:07e15677a75c 168 actual_data.BAE_temp_actual=(-90.7*3.3*actual_data.BAE_temp_actual)+190.1543;
sakthipriya 3:07e15677a75c 169
sakthipriya 3:07e15677a75c 170 actual_data.Batt_voltage_actual=Batt_voltage.read()*3.3*5.63;
sakthipriya 3:07e15677a75c 171
sakthipriya 3:07e15677a75c 172 //quantizing data
sakthipriya 3:07e15677a75c 173 for(Iteration=0; Iteration<16; Iteration++){
sakthipriya 3:07e15677a75c 174
sakthipriya 3:07e15677a75c 175 if(Iteration==14)
sakthipriya 3:07e15677a75c 176 quant_data.voltage_quant[Iteration]=quantiz(tstart,tstep,actual_data.voltage_actual[Iteration]);
sakthipriya 3:07e15677a75c 177 else
sakthipriya 3:07e15677a75c 178 quant_data.voltage_quant[Iteration]=quantiz(vstart,vstep,actual_data.voltage_actual[Iteration]);
sakthipriya 3:07e15677a75c 179
sakthipriya 3:07e15677a75c 180 }
sakthipriya 3:07e15677a75c 181 for(Iteration=0;Iteration<12;Iteration++){
sakthipriya 3:07e15677a75c 182 if(Iteration<8)
sakthipriya 3:07e15677a75c 183 quant_data.current_quant[Iteration]=quantiz(cstart,cstep,actual_data.current_actual[Iteration]);
sakthipriya 3:07e15677a75c 184 else
sakthipriya 3:07e15677a75c 185 quant_data.current_quant[Iteration]=quantiz(tstart_thermistor,tstep_thermistor,actual_data.current_actual[Iteration]);
sakthipriya 3:07e15677a75c 186 }
sakthipriya 3:07e15677a75c 187 for(Iteration=0;Iteration<2;Iteration++){
sakthipriya 3:07e15677a75c 188
sakthipriya 3:07e15677a75c 189 quant_data.Batt_temp_quant[Iteration]=quantiz(tstart,tstep,actual_data.Batt_temp_actual[Iteration]);
sakthipriya 3:07e15677a75c 190 }
sakthipriya 3:07e15677a75c 191
sakthipriya 3:07e15677a75c 192 quant_data.Batt_gauge_quant[0]=quantiz(vcell_start,vcell_step,actual_data.Batt_gauge_actual[0]);
sakthipriya 3:07e15677a75c 193 quant_data.Batt_gauge_quant[1]=quantiz(soc_start,soc_step,actual_data.Batt_gauge_actual[1]);
sakthipriya 3:07e15677a75c 194 quant_data.Batt_gauge_quant[2]=quantiz(crate_start,crate_step,actual_data.Batt_gauge_actual[2]);
sakthipriya 3:07e15677a75c 195 quant_data.Batt_gauge_alerts=actual_data.Batt_gauge_actual[3];
sakthipriya 3:07e15677a75c 196
sakthipriya 3:07e15677a75c 197 quant_data.BAE_temp_quant=quantiz(tstart,tstep,actual_data.BAE_temp_actual);
sakthipriya 3:07e15677a75c 198
sakthipriya 3:07e15677a75c 199 for(Iteration=0;Iteration<3;Iteration++){
sakthipriya 5:bb592f3185cc 200 quant_data.AngularSpeed_quant[Iteration]=actual_data.AngularSpeed_actual[Iteration];
sakthipriya 6:036d08b62785 201 printf("\n\r w value %f",quant_data.AngularSpeed_quant[Iteration]);
sakthipriya 3:07e15677a75c 202 }
sakthipriya 3:07e15677a75c 203
sakthipriya 3:07e15677a75c 204 for(Iteration=0;Iteration<3;Iteration++){
sakthipriya 3:07e15677a75c 205 quant_data.Bvalue_quant[Iteration]=actual_data.Bvalue_actual[Iteration];
sakthipriya 6:036d08b62785 206 printf("\n\r b value %f",quant_data.Bvalue_quant[Iteration]);
sakthipriya 3:07e15677a75c 207 }
sakthipriya 3:07e15677a75c 208
sakthipriya 3:07e15677a75c 209 quant_data.Batt_voltage_quant=quantiz(vstart,vstep,actual_data.Batt_voltage_actual);
sakthipriya 3:07e15677a75c 210
sakthipriya 3:07e15677a75c 211
sakthipriya 3:07e15677a75c 212 arch_data.Batt_1_temp=quant_data.Batt_temp_quant[0];
sakthipriya 3:07e15677a75c 213 arch_data.Batt_2_temp=quant_data.Batt_temp_quant[1];
sakthipriya 3:07e15677a75c 214 arch_data.EPS_PCB_temp=quant_data.voltage_quant[14];
sakthipriya 3:07e15677a75c 215 arch_data.Batt_SOC=quant_data.Batt_gauge_quant[1];
sakthipriya 3:07e15677a75c 216 arch_data.power_mode=actual_data.power_mode;
sakthipriya 5:bb592f3185cc 217 arch_data.faultPoll_status=actual_data.faultPoll_status;
sakthipriya 5:bb592f3185cc 218 arch_data.faultIr_status=actual_data.faultIr_status;
sakthipriya 3:07e15677a75c 219 arch_data.Batt_voltage=quant_data.Batt_voltage_quant;
sakthipriya 6:036d08b62785 220 printf("\n\r in hk");
sakthipriya 3:07e15677a75c 221
sakthipriya 3:07e15677a75c 222 }
sakthipriya 3:07e15677a75c 223
sakthipriya 5:bb592f3185cc 224 void FCTN_APPEND_HKDATA()
sakthipriya 5:bb592f3185cc 225 {
sakthipriya 5:bb592f3185cc 226 // quantized data
sakthipriya 5:bb592f3185cc 227 for (int i=0;i<16;i++)
sakthipriya 5:bb592f3185cc 228 BAE_data[i] = quant_data.voltage_quant[i];
sakthipriya 5:bb592f3185cc 229 for (int i=16;i<28;i++)
sakthipriya 5:bb592f3185cc 230 BAE_data[i] = quant_data.current_quant[i-16];
sakthipriya 5:bb592f3185cc 231 BAE_data[28] = quant_data.Batt_temp_quant[0];
sakthipriya 5:bb592f3185cc 232 BAE_data[29] = quant_data.Batt_temp_quant[1];
sakthipriya 5:bb592f3185cc 233 BAE_data[30] = quant_data.Batt_gauge_quant[1];
sakthipriya 5:bb592f3185cc 234 BAE_data[31] = quant_data.Batt_gauge_quant[1];
sakthipriya 5:bb592f3185cc 235 BAE_data[32] = quant_data.Batt_gauge_quant[1];
sakthipriya 5:bb592f3185cc 236 FCTN_CONVERT_FLOAT(quant_data.Batt_gauge_alerts,&BAE_data[33]);
sakthipriya 5:bb592f3185cc 237 BAE_data[37] = quant_data.BAE_temp_quant;
sakthipriya 5:bb592f3185cc 238 FCTN_CONVERT_FLOAT(quant_data.AngularSpeed_quant[0],&BAE_data[38]);
sakthipriya 6:036d08b62785 239 //printf("\n\r outside %d %d %d %d", BAE_data[38],BAE_data[39],BAE_data[40],BAE_data[41]);
sakthipriya 6:036d08b62785 240 //std:: cout << "\n\r uint8 outside " << BAE_data[38] << '\t' << BAE_data[39] << '\t' << BAE_data[40] << '\t' << BAE_data[41] <<std::endl;
sakthipriya 5:bb592f3185cc 241 FCTN_CONVERT_FLOAT(quant_data.AngularSpeed_quant[1],&BAE_data[42]);
sakthipriya 6:036d08b62785 242 //std:: cout << "\n\r uint8 outside " << BAE_data[42] << '\t' << BAE_data[43] << '\t' << BAE_data[44] << '\t' << BAE_data[45] <<std::endl;
sakthipriya 6:036d08b62785 243 // printf("\n\r outside %d %d %d %d", BAE_data[42],BAE_data[43],BAE_data[44],BAE_data[45]);
sakthipriya 5:bb592f3185cc 244 FCTN_CONVERT_FLOAT(quant_data.AngularSpeed_quant[2],&BAE_data[46]);
sakthipriya 6:036d08b62785 245 //printf("\n\r outside %d %d %d %d", BAE_data[46],BAE_data[47],BAE_data[48],BAE_data[49]);
sakthipriya 6:036d08b62785 246 //std:: cout << "\n\r uint8 outside " << BAE_data[46] << '\t' << BAE_data[47] << '\t' << BAE_data[48] << '\t' << BAE_data[49] <<std::endl;
sakthipriya 5:bb592f3185cc 247 FCTN_CONVERT_FLOAT(quant_data.Bvalue_quant[0],&BAE_data[50]);
sakthipriya 5:bb592f3185cc 248 FCTN_CONVERT_FLOAT(quant_data.Bvalue_quant[1],&BAE_data[54]);
sakthipriya 5:bb592f3185cc 249 FCTN_CONVERT_FLOAT(quant_data.Bvalue_quant[2],&BAE_data[58]);
sakthipriya 5:bb592f3185cc 250 BAE_data[62] = quant_data.Batt_voltage_quant;
sakthipriya 5:bb592f3185cc 251 BAE_data[63] = (uint8_t)actual_data.power_mode;
sakthipriya 5:bb592f3185cc 252 BAE_data[64] = actual_data.faultPoll_status;
sakthipriya 5:bb592f3185cc 253 BAE_data[65] = actual_data.faultIr_status;
sakthipriya 5:bb592f3185cc 254 // archived data
sakthipriya 5:bb592f3185cc 255 BAE_data[66] = arch_data.Batt_1_temp; //verify if uint8_t is right
sakthipriya 5:bb592f3185cc 256 BAE_data[67] = arch_data.Batt_2_temp;
sakthipriya 5:bb592f3185cc 257 BAE_data[68] = arch_data.EPS_PCB_temp;
sakthipriya 5:bb592f3185cc 258 BAE_data[69] = arch_data.Batt_SOC;
sakthipriya 5:bb592f3185cc 259 BAE_data[70] = (uint8_t)arch_data.power_mode;
sakthipriya 5:bb592f3185cc 260 BAE_data[71] = arch_data.faultPoll_status;
sakthipriya 5:bb592f3185cc 261 BAE_data[72] = arch_data.faultIr_status;
sakthipriya 5:bb592f3185cc 262 BAE_data[73] = arch_data.Batt_voltage;
sakthipriya 6:036d08b62785 263 for(int i=0; i<73;i++)
sakthipriya 6:036d08b62785 264 BAE_chardata[i] = (char)BAE_data[i];
sakthipriya 6:036d08b62785 265 BAE_chardata[73] = '\0';
sakthipriya 7:a46a1dee4497 266 printf("\n\r bae ats data %c %c %c", BAE_chardata[38],BAE_chardata[39],BAE_chardata[40]);
sakthipriya 6:036d08b62785 267 printf("\n\r BAE data is %s", BAE_chardata);
sakthipriya 5:bb592f3185cc 268
sakthipriya 5:bb592f3185cc 269 }
sakthipriya 5:bb592f3185cc 270
sakthipriya 5:bb592f3185cc 271 uint8_t quantiz(float start,float step,float x)
sakthipriya 0:7b4c00e3912f 272 {
sakthipriya 0:7b4c00e3912f 273 int y=(x-start)/step;
sakthipriya 0:7b4c00e3912f 274 if(y<=0)y=0;
sakthipriya 0:7b4c00e3912f 275 if(y>=255)y=255;
sakthipriya 0:7b4c00e3912f 276 return y;
sakthipriya 0:7b4c00e3912f 277 }
sakthipriya 0:7b4c00e3912f 278
sakthipriya 3:07e15677a75c 279 bool firstCount=true; // goes to EPS init
sakthipriya 3:07e15677a75c 280
sakthipriya 3:07e15677a75c 281
sakthipriya 3:07e15677a75c 282 void saveMin(char x,char y){
sakthipriya 3:07e15677a75c 283 if(y<x){
sakthipriya 3:07e15677a75c 284 x=y;
sakthipriya 3:07e15677a75c 285 }
sakthipriya 3:07e15677a75c 286
sakthipriya 3:07e15677a75c 287 }
sakthipriya 3:07e15677a75c 288 void saveMax(char x,char y){
sakthipriya 3:07e15677a75c 289 if (y>x)
sakthipriya 3:07e15677a75c 290 {
sakthipriya 3:07e15677a75c 291 x=y;
sakthipriya 3:07e15677a75c 292 }
sakthipriya 0:7b4c00e3912f 293 }
sakthipriya 0:7b4c00e3912f 294
sakthipriya 3:07e15677a75c 295
sakthipriya 3:07e15677a75c 296 void minMaxHkData(){
sakthipriya 3:07e15677a75c 297 if(firstCount==true){
sakthipriya 3:07e15677a75c 298 for (int i = 0; i < 16; ++i){
sakthipriya 3:07e15677a75c 299 bae_HK_minmax.voltage_min[i] = quant_data.voltage_quant[i];
sakthipriya 3:07e15677a75c 300 bae_HK_minmax.voltage_max[i] = quant_data.voltage_quant[i];
sakthipriya 3:07e15677a75c 301 }
sakthipriya 3:07e15677a75c 302 for (int i = 0; i < 12; ++i){
sakthipriya 3:07e15677a75c 303 bae_HK_minmax.current_min[i] = quant_data.current_quant[i];
sakthipriya 3:07e15677a75c 304 bae_HK_minmax.current_max[i] = quant_data.current_quant[i];
sakthipriya 3:07e15677a75c 305 }
sakthipriya 3:07e15677a75c 306
sakthipriya 3:07e15677a75c 307 for (int i = 0; i < 2; ++i){
sakthipriya 3:07e15677a75c 308 bae_HK_minmax.Batt_temp_min[i] = quant_data.Batt_temp_quant[i];
sakthipriya 3:07e15677a75c 309 bae_HK_minmax.Batt_temp_max[i] = quant_data.Batt_temp_quant[i];
sakthipriya 3:07e15677a75c 310 }
sakthipriya 3:07e15677a75c 311 for (int i = 0; i < 3; ++i){
sakthipriya 3:07e15677a75c 312 bae_HK_minmax.Batt_gauge_min[i] = quant_data.Batt_gauge_quant[i];
sakthipriya 3:07e15677a75c 313 bae_HK_minmax.Batt_gauge_max[i] = quant_data.Batt_gauge_quant[i];
sakthipriya 3:07e15677a75c 314 }
sakthipriya 3:07e15677a75c 315 for (int i = 0; i < 3; ++i){
sakthipriya 3:07e15677a75c 316 bae_HK_minmax.AngularSpeed_min[i] = quant_data.AngularSpeed_quant[i];
sakthipriya 3:07e15677a75c 317 bae_HK_minmax.AngularSpeed_max[i] = quant_data.AngularSpeed_quant[i];
sakthipriya 3:07e15677a75c 318 }
sakthipriya 3:07e15677a75c 319 for (int i = 0; i < 3; ++i){
sakthipriya 3:07e15677a75c 320 bae_HK_minmax.Bvalue_min[i] = quant_data.Bvalue_quant[i];
sakthipriya 3:07e15677a75c 321 bae_HK_minmax.Bvalue_max[i] = quant_data.Bvalue_quant[i];
sakthipriya 3:07e15677a75c 322 }
sakthipriya 3:07e15677a75c 323 bae_HK_minmax.BAE_temp_min=quant_data.BAE_temp_quant;
sakthipriya 3:07e15677a75c 324 bae_HK_minmax.BAE_temp_max=quant_data.BAE_temp_quant;
sakthipriya 3:07e15677a75c 325 bae_HK_minmax.Batt_voltage_min=quant_data.Batt_voltage_quant;
sakthipriya 3:07e15677a75c 326 bae_HK_minmax.Batt_voltage_max=quant_data.Batt_voltage_quant;
sakthipriya 3:07e15677a75c 327
sakthipriya 3:07e15677a75c 328 }
sakthipriya 3:07e15677a75c 329 else {
sakthipriya 3:07e15677a75c 330 for (int i = 0; i < 16; ++i)
sakthipriya 3:07e15677a75c 331 {
sakthipriya 3:07e15677a75c 332 saveMin(bae_HK_minmax.voltage_min[i],quant_data.voltage_quant[i]);
sakthipriya 3:07e15677a75c 333 saveMax(bae_HK_minmax.voltage_max[i],quant_data.voltage_quant[i]);
sakthipriya 3:07e15677a75c 334 }
sakthipriya 3:07e15677a75c 335 for (int i = 0; i < 12; ++i)
sakthipriya 3:07e15677a75c 336 {
sakthipriya 3:07e15677a75c 337 saveMin(bae_HK_minmax.current_min[i],quant_data.current_quant[i]);
sakthipriya 3:07e15677a75c 338 saveMax(bae_HK_minmax.current_max[i],quant_data.current_quant[i]);
sakthipriya 3:07e15677a75c 339 }
sakthipriya 3:07e15677a75c 340
sakthipriya 3:07e15677a75c 341 for (int i = 0; i < 2; ++i)
sakthipriya 3:07e15677a75c 342 {
sakthipriya 3:07e15677a75c 343 saveMin(bae_HK_minmax.Batt_temp_min[i],quant_data.Batt_temp_quant[i]);
sakthipriya 3:07e15677a75c 344 saveMax(bae_HK_minmax.Batt_temp_max[i],quant_data.Batt_temp_quant[i]);
sakthipriya 3:07e15677a75c 345 }
sakthipriya 3:07e15677a75c 346 for (int i = 0; i < 3; ++i)
sakthipriya 3:07e15677a75c 347 {
sakthipriya 3:07e15677a75c 348 saveMin(bae_HK_minmax.Batt_gauge_min[i], quant_data.Batt_gauge_quant[i]);
sakthipriya 3:07e15677a75c 349 saveMax(bae_HK_minmax.Batt_gauge_max[i], quant_data.Batt_gauge_quant[i]);
sakthipriya 3:07e15677a75c 350 }
sakthipriya 3:07e15677a75c 351 for (int i = 0; i < 3; ++i)
sakthipriya 3:07e15677a75c 352 {
sakthipriya 3:07e15677a75c 353 saveMin(bae_HK_minmax.AngularSpeed_min[i], quant_data.AngularSpeed_quant[i]);
sakthipriya 3:07e15677a75c 354 saveMax(bae_HK_minmax.AngularSpeed_max[i], quant_data.AngularSpeed_quant[i]);
sakthipriya 3:07e15677a75c 355 }
sakthipriya 3:07e15677a75c 356 for (int i = 0; i < 3; ++i)
sakthipriya 3:07e15677a75c 357 {
sakthipriya 3:07e15677a75c 358 saveMin(bae_HK_minmax.Bvalue_min[i], quant_data.Bvalue_quant[i]);
sakthipriya 3:07e15677a75c 359 saveMax(bae_HK_minmax.Bvalue_max[i], quant_data.Bvalue_quant[i]);
sakthipriya 3:07e15677a75c 360 }
sakthipriya 3:07e15677a75c 361 saveMin(bae_HK_minmax.BAE_temp_min,quant_data.BAE_temp_quant);
sakthipriya 3:07e15677a75c 362 saveMax(bae_HK_minmax.BAE_temp_max,quant_data.BAE_temp_quant);
sakthipriya 3:07e15677a75c 363 saveMin(bae_HK_minmax.Batt_voltage_min,quant_data.Batt_voltage_quant);
sakthipriya 3:07e15677a75c 364 saveMin(bae_HK_minmax.Batt_voltage_max,quant_data.Batt_voltage_quant);
sakthipriya 3:07e15677a75c 365
sakthipriya 3:07e15677a75c 366
sakthipriya 3:07e15677a75c 367 }
sakthipriya 3:07e15677a75c 368 firstCount=false;
sakthipriya 3:07e15677a75c 369 }
sakthipriya 3:07e15677a75c 370
sakthipriya 3:07e15677a75c 371
sakthipriya 0:7b4c00e3912f 372 //............................................BATTERY GAUGE......................................//
sakthipriya 0:7b4c00e3912f 373 void FCTN_BATTERYGAUGE_INIT()
sakthipriya 0:7b4c00e3912f 374 {
sakthipriya 0:7b4c00e3912f 375 disable_sleep();
sakthipriya 0:7b4c00e3912f 376 disable_hibernate();
sakthipriya 0:7b4c00e3912f 377 socChangeAlertEnabled(true); //enabling alert on soc changing by 1%
sakthipriya 0:7b4c00e3912f 378 emptyAlertThreshold(32);//setting empty alert threshold to 32% soc
sakthipriya 0:7b4c00e3912f 379 vAlertMinMaxThreshold();//set min, max value of Valrt register
sakthipriya 0:7b4c00e3912f 380 vResetThresholdSet();//set threshold voltage for reset
sakthipriya 0:7b4c00e3912f 381 vResetAlertEnabled(true);//enable alert on reset for V < Vreset
sakthipriya 0:7b4c00e3912f 382 }
sakthipriya 0:7b4c00e3912f 383
sakthipriya 0:7b4c00e3912f 384 void FCTN_BATTERYGAUGE_MAIN(float Battery_parameters[4])
sakthipriya 0:7b4c00e3912f 385 {
sakthipriya 1:446a959e36ce 386 printf("\n\r battery gauge \n");
sakthipriya 0:7b4c00e3912f 387
sakthipriya 3:07e15677a75c 388 float temp=30; //=Battery_temp (from temp sensor on battery board) //value of battery temperature in C currently given a dummy value. Should be updated everytime.
sakthipriya 0:7b4c00e3912f 389 tempCompensation(temp);
sakthipriya 0:7b4c00e3912f 390
sakthipriya 0:7b4c00e3912f 391
sakthipriya 0:7b4c00e3912f 392 Battery_parameters[0]=vcell();
sakthipriya 0:7b4c00e3912f 393 Battery_parameters[1]=soc();
sakthipriya 0:7b4c00e3912f 394 Battery_parameters[2]=crate();
sakthipriya 0:7b4c00e3912f 395
sakthipriya 0:7b4c00e3912f 396 printf("\nVcell=%f",vcell()); //remove this for final code
sakthipriya 0:7b4c00e3912f 397 printf("\nSOC=%f",soc()); //remove this for final code
sakthipriya 0:7b4c00e3912f 398 printf("\nC_rate=%f",crate()); //remove this for final code
sakthipriya 0:7b4c00e3912f 399
sakthipriya 0:7b4c00e3912f 400
sakthipriya 0:7b4c00e3912f 401 if (alerting()== true) //alert is on
sakthipriya 0:7b4c00e3912f 402 {
sakthipriya 0:7b4c00e3912f 403 Battery_parameters[3]=alertFlags();
sakthipriya 0:7b4c00e3912f 404 clearAlert();//clear alert
sakthipriya 0:7b4c00e3912f 405 clearAlertFlags();//clear all alert flags
sakthipriya 0:7b4c00e3912f 406 }
sakthipriya 0:7b4c00e3912f 407
sakthipriya 0:7b4c00e3912f 408 }
sakthipriya 0:7b4c00e3912f 409
sakthipriya 0:7b4c00e3912f 410 unsigned short read(char reg)
sakthipriya 0:7b4c00e3912f 411 {
sakthipriya 0:7b4c00e3912f 412
sakthipriya 0:7b4c00e3912f 413 //Create a temporary buffer
sakthipriya 0:7b4c00e3912f 414 char buff[2];
sakthipriya 0:7b4c00e3912f 415
sakthipriya 0:7b4c00e3912f 416 //Select the register
sakthipriya 0:7b4c00e3912f 417 m_I2C.write(m_ADDR, &reg, 1, true);
sakthipriya 0:7b4c00e3912f 418
sakthipriya 0:7b4c00e3912f 419 //Read the 16-bit register
sakthipriya 0:7b4c00e3912f 420 m_I2C.read(m_ADDR, buff, 2);
sakthipriya 0:7b4c00e3912f 421
sakthipriya 0:7b4c00e3912f 422 //Return the combined 16-bit value
sakthipriya 0:7b4c00e3912f 423 return (buff[0] << 8) | buff[1];
sakthipriya 0:7b4c00e3912f 424 }
sakthipriya 0:7b4c00e3912f 425
sakthipriya 3:07e15677a75c 426
sakthipriya 1:446a959e36ce 427
sakthipriya 3:07e15677a75c 428
sakthipriya 0:7b4c00e3912f 429
sakthipriya 0:7b4c00e3912f 430 void write(char reg, unsigned short data)
sakthipriya 0:7b4c00e3912f 431 {
sakthipriya 0:7b4c00e3912f 432 //Create a temporary buffer
sakthipriya 0:7b4c00e3912f 433 char buff[3];
sakthipriya 0:7b4c00e3912f 434
sakthipriya 0:7b4c00e3912f 435 //Load the register address and 16-bit data
sakthipriya 0:7b4c00e3912f 436 buff[0] = reg;
sakthipriya 0:7b4c00e3912f 437 buff[1] = data >> 8;
sakthipriya 0:7b4c00e3912f 438 buff[2] = data;
sakthipriya 0:7b4c00e3912f 439
sakthipriya 0:7b4c00e3912f 440 //Write the data
sakthipriya 0:7b4c00e3912f 441 m_I2C.write(m_ADDR, buff, 3);
sakthipriya 0:7b4c00e3912f 442 }
sakthipriya 0:7b4c00e3912f 443
sakthipriya 0:7b4c00e3912f 444
sakthipriya 0:7b4c00e3912f 445
sakthipriya 0:7b4c00e3912f 446 // Command the MAX17049 to perform a power-on reset
sakthipriya 0:7b4c00e3912f 447 void reset()
sakthipriya 0:7b4c00e3912f 448 {
sakthipriya 0:7b4c00e3912f 449 //Write the POR command
sakthipriya 0:7b4c00e3912f 450 write(REG_CMD, 0x5400);
sakthipriya 0:7b4c00e3912f 451 }
sakthipriya 0:7b4c00e3912f 452
sakthipriya 0:7b4c00e3912f 453 // Command the MAX17049 to perform a QuickStart
sakthipriya 0:7b4c00e3912f 454 void quickStart()
sakthipriya 0:7b4c00e3912f 455 {
sakthipriya 0:7b4c00e3912f 456 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 457 unsigned short value = read(REG_MODE);
lakshya 15:e09aaaccf134 458
sakthipriya 0:7b4c00e3912f 459 //Set the QuickStart bit
sakthipriya 0:7b4c00e3912f 460 value |= (1 << 14);
sakthipriya 0:7b4c00e3912f 461
sakthipriya 0:7b4c00e3912f 462 //Write the value back out
sakthipriya 0:7b4c00e3912f 463 write(REG_MODE, value);
sakthipriya 0:7b4c00e3912f 464 }
sakthipriya 0:7b4c00e3912f 465
sakthipriya 0:7b4c00e3912f 466
sakthipriya 0:7b4c00e3912f 467 //disable sleep
sakthipriya 0:7b4c00e3912f 468 void disable_sleep()
sakthipriya 0:7b4c00e3912f 469 {
sakthipriya 0:7b4c00e3912f 470 unsigned short value = read(REG_MODE);
sakthipriya 0:7b4c00e3912f 471 value &= ~(1 << 13);
sakthipriya 0:7b4c00e3912f 472 write(REG_MODE, value);
sakthipriya 0:7b4c00e3912f 473 }
sakthipriya 0:7b4c00e3912f 474
sakthipriya 0:7b4c00e3912f 475 //disable the hibernate of the MAX17049
sakthipriya 0:7b4c00e3912f 476 void disable_hibernate()
sakthipriya 0:7b4c00e3912f 477 {
sakthipriya 0:7b4c00e3912f 478 write(REG_HIBRT, 0x0000);
sakthipriya 0:7b4c00e3912f 479 }
sakthipriya 0:7b4c00e3912f 480
sakthipriya 0:7b4c00e3912f 481
sakthipriya 0:7b4c00e3912f 482 // Enable or disable the SOC 1% change alert on the MAX17049
sakthipriya 0:7b4c00e3912f 483 void socChangeAlertEnabled(bool enabled)
sakthipriya 0:7b4c00e3912f 484 {
sakthipriya 0:7b4c00e3912f 485 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 486 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 487
sakthipriya 0:7b4c00e3912f 488 //Set or clear the ALSC bit
sakthipriya 0:7b4c00e3912f 489 if (enabled)
sakthipriya 0:7b4c00e3912f 490 value |= (1 << 6);
sakthipriya 0:7b4c00e3912f 491 else
sakthipriya 0:7b4c00e3912f 492 value &= ~(1 << 6);
sakthipriya 0:7b4c00e3912f 493
sakthipriya 0:7b4c00e3912f 494 //Write the value back out
sakthipriya 0:7b4c00e3912f 495 write(REG_CONFIG, value);
sakthipriya 0:7b4c00e3912f 496 }
sakthipriya 0:7b4c00e3912f 497
sakthipriya 0:7b4c00e3912f 498
sakthipriya 0:7b4c00e3912f 499 void compensation(char rcomp)
sakthipriya 0:7b4c00e3912f 500 {
sakthipriya 0:7b4c00e3912f 501 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 502 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 503
sakthipriya 0:7b4c00e3912f 504 //Update the register value
sakthipriya 0:7b4c00e3912f 505 value &= 0x00FF;
sakthipriya 0:7b4c00e3912f 506 value |= rcomp << 8;
sakthipriya 0:7b4c00e3912f 507
sakthipriya 0:7b4c00e3912f 508 //Write the value back out
sakthipriya 0:7b4c00e3912f 509 write(REG_CONFIG, value);
sakthipriya 0:7b4c00e3912f 510 }
sakthipriya 0:7b4c00e3912f 511
sakthipriya 0:7b4c00e3912f 512
sakthipriya 0:7b4c00e3912f 513 void tempCompensation(float temp)
sakthipriya 0:7b4c00e3912f 514 {
sakthipriya 0:7b4c00e3912f 515 //Calculate the new RCOMP value
sakthipriya 0:7b4c00e3912f 516 char rcomp;
sakthipriya 0:7b4c00e3912f 517 if (temp > 20.0) {
sakthipriya 0:7b4c00e3912f 518 rcomp = RCOMP0 + (temp - 20.0) * -0.5;
sakthipriya 0:7b4c00e3912f 519 } else {
sakthipriya 0:7b4c00e3912f 520 rcomp = RCOMP0 + (temp - 20.0) * -5.0;
sakthipriya 0:7b4c00e3912f 521 }
sakthipriya 0:7b4c00e3912f 522
sakthipriya 0:7b4c00e3912f 523 //Update the RCOMP value
sakthipriya 0:7b4c00e3912f 524 compensation(rcomp);
sakthipriya 0:7b4c00e3912f 525 }
sakthipriya 0:7b4c00e3912f 526
sakthipriya 0:7b4c00e3912f 527 // Command the MAX17049 to de-assert the ALRT pin
sakthipriya 0:7b4c00e3912f 528 void clearAlert()
sakthipriya 0:7b4c00e3912f 529 {
sakthipriya 0:7b4c00e3912f 530 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 531 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 532
sakthipriya 0:7b4c00e3912f 533 //Clear the ALRT bit
sakthipriya 0:7b4c00e3912f 534 value &= ~(1 << 5);
sakthipriya 0:7b4c00e3912f 535
sakthipriya 0:7b4c00e3912f 536 //Write the value back out
sakthipriya 0:7b4c00e3912f 537 write(REG_CONFIG, value);
sakthipriya 0:7b4c00e3912f 538 }
sakthipriya 0:7b4c00e3912f 539
sakthipriya 0:7b4c00e3912f 540
sakthipriya 0:7b4c00e3912f 541 //Set the SOC empty alert threshold of the MAX17049
sakthipriya 0:7b4c00e3912f 542 void emptyAlertThreshold(char threshold)
sakthipriya 0:7b4c00e3912f 543 {
sakthipriya 0:7b4c00e3912f 544 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 545 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 546
sakthipriya 0:7b4c00e3912f 547 //Update the register value
sakthipriya 0:7b4c00e3912f 548 value &= 0xFFE0;
sakthipriya 0:7b4c00e3912f 549 value |= 32 - threshold;
sakthipriya 0:7b4c00e3912f 550
sakthipriya 0:7b4c00e3912f 551 //Write the 16-bit register
sakthipriya 0:7b4c00e3912f 552 write(REG_CONFIG, value);
sakthipriya 0:7b4c00e3912f 553 }
sakthipriya 0:7b4c00e3912f 554
sakthipriya 0:7b4c00e3912f 555 // Set the low and high voltage alert threshold of the MAX17049
sakthipriya 0:7b4c00e3912f 556 void vAlertMinMaxThreshold()
sakthipriya 0:7b4c00e3912f 557 {
sakthipriya 0:7b4c00e3912f 558 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 559 unsigned short value = read(REG_VALRT);
sakthipriya 0:7b4c00e3912f 560
sakthipriya 0:7b4c00e3912f 561 //Mask off the old value
sakthipriya 0:7b4c00e3912f 562
sakthipriya 0:7b4c00e3912f 563 value = 0x96D2;
sakthipriya 0:7b4c00e3912f 564
sakthipriya 0:7b4c00e3912f 565 //Write the 16-bit register
sakthipriya 0:7b4c00e3912f 566 write(REG_VALRT, value);
sakthipriya 0:7b4c00e3912f 567 }
sakthipriya 0:7b4c00e3912f 568
sakthipriya 0:7b4c00e3912f 569
sakthipriya 0:7b4c00e3912f 570 // Set the reset voltage threshold of the MAX17049
sakthipriya 0:7b4c00e3912f 571 void vResetThresholdSet()
sakthipriya 0:7b4c00e3912f 572 {
sakthipriya 0:7b4c00e3912f 573 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 574 unsigned short value = read(REG_VRESET_ID);
sakthipriya 0:7b4c00e3912f 575
sakthipriya 0:7b4c00e3912f 576 //Mask off the old //value
sakthipriya 0:7b4c00e3912f 577 value &= 0x00FF;//Dis=0
sakthipriya 0:7b4c00e3912f 578
sakthipriya 0:7b4c00e3912f 579 value |= 0x9400;//corresponding to 2.5 V
sakthipriya 0:7b4c00e3912f 580
sakthipriya 0:7b4c00e3912f 581
sakthipriya 0:7b4c00e3912f 582 //Write the 16-bit register
sakthipriya 0:7b4c00e3912f 583 write(REG_VRESET_ID, value);
sakthipriya 0:7b4c00e3912f 584 }
sakthipriya 0:7b4c00e3912f 585
sakthipriya 0:7b4c00e3912f 586
sakthipriya 0:7b4c00e3912f 587 // Enable or disable the voltage reset alert on the MAX17049
sakthipriya 0:7b4c00e3912f 588 void vResetAlertEnabled(bool enabled)
sakthipriya 0:7b4c00e3912f 589 {
sakthipriya 0:7b4c00e3912f 590 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 591 unsigned short value = read(REG_STATUS);
sakthipriya 0:7b4c00e3912f 592
sakthipriya 0:7b4c00e3912f 593 //Set or clear the EnVR bit
sakthipriya 0:7b4c00e3912f 594 if (enabled)
sakthipriya 0:7b4c00e3912f 595 value |= (1 << 14);
sakthipriya 0:7b4c00e3912f 596 else
sakthipriya 0:7b4c00e3912f 597 value &= ~(1 << 14);
sakthipriya 0:7b4c00e3912f 598
sakthipriya 0:7b4c00e3912f 599 //Write the value back out
sakthipriya 0:7b4c00e3912f 600 write(REG_STATUS, value);
sakthipriya 0:7b4c00e3912f 601 }
sakthipriya 0:7b4c00e3912f 602
sakthipriya 0:7b4c00e3912f 603 //Get the current alert flags on the MAX17049
sakthipriya 0:7b4c00e3912f 604 //refer datasheet-status registers section to decode it.
sakthipriya 0:7b4c00e3912f 605 char alertFlags()
sakthipriya 0:7b4c00e3912f 606 {
sakthipriya 0:7b4c00e3912f 607 //Read the 16-bit register value
sakthipriya 0:7b4c00e3912f 608 unsigned short value = read(REG_STATUS);
sakthipriya 0:7b4c00e3912f 609
sakthipriya 0:7b4c00e3912f 610 //Return only the flag bits
sakthipriya 0:7b4c00e3912f 611 return (value >> 8) & 0x3F;
sakthipriya 0:7b4c00e3912f 612 }
sakthipriya 0:7b4c00e3912f 613
sakthipriya 0:7b4c00e3912f 614 // Clear all the alert flags on the MAX17049
sakthipriya 0:7b4c00e3912f 615 void clearAlertFlags()
sakthipriya 0:7b4c00e3912f 616 {
sakthipriya 0:7b4c00e3912f 617 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 618 unsigned short value = read(REG_STATUS);
sakthipriya 0:7b4c00e3912f 619
sakthipriya 0:7b4c00e3912f 620 //Clear the specified flag bits
sakthipriya 0:7b4c00e3912f 621 value &= ~( 0x3F<< 8);
sakthipriya 0:7b4c00e3912f 622
sakthipriya 0:7b4c00e3912f 623 //Write the value back out
sakthipriya 0:7b4c00e3912f 624 write(REG_STATUS, value);
sakthipriya 0:7b4c00e3912f 625 }
sakthipriya 0:7b4c00e3912f 626
sakthipriya 0:7b4c00e3912f 627 // Get the current cell voltage measurement of the MAX17049
sakthipriya 0:7b4c00e3912f 628 float vcell()
sakthipriya 0:7b4c00e3912f 629 {
sakthipriya 1:446a959e36ce 630
sakthipriya 0:7b4c00e3912f 631 //Read the 16-bit raw Vcell value
sakthipriya 0:7b4c00e3912f 632 unsigned short value = read(REG_VCELL);
sakthipriya 0:7b4c00e3912f 633
sakthipriya 0:7b4c00e3912f 634 //Return Vcell in volts
sakthipriya 0:7b4c00e3912f 635 return value * 0.000078125*2;
sakthipriya 0:7b4c00e3912f 636 }
sakthipriya 0:7b4c00e3912f 637
sakthipriya 0:7b4c00e3912f 638 // Get the current state of charge measurement of the MAX17049 as a float
sakthipriya 0:7b4c00e3912f 639 float soc()
sakthipriya 0:7b4c00e3912f 640 {
sakthipriya 3:07e15677a75c 641
sakthipriya 3:07e15677a75c 642 //Create a temporary buffer
sakthipriya 0:7b4c00e3912f 643 char buff[2];
sakthipriya 3:07e15677a75c 644 int ack = 1;
sakthipriya 3:07e15677a75c 645 //Select the register
sakthipriya 3:07e15677a75c 646 char reg = REG_SOC; // cannot pass the hash defined values directly
sakthipriya 3:07e15677a75c 647 m_I2C.write(m_ADDR, &reg, 1, true);
sakthipriya 3:07e15677a75c 648
sakthipriya 3:07e15677a75c 649
sakthipriya 3:07e15677a75c 650 //Read the 16-bit register
sakthipriya 3:07e15677a75c 651
sakthipriya 3:07e15677a75c 652 ack = m_I2C.read(m_ADDR, buff, 2);
sakthipriya 3:07e15677a75c 653
sakthipriya 3:07e15677a75c 654 printf("\n\r acknow %d", ack);
sakthipriya 0:7b4c00e3912f 655
sakthipriya 0:7b4c00e3912f 656 //Return SOC in percent
sakthipriya 2:c823d84b4cb0 657 if(ack == 0)
sakthipriya 3:07e15677a75c 658 return ((buff[0] << 8) | buff[1]) * 0.00390625;
sakthipriya 2:c823d84b4cb0 659 else
sakthipriya 2:c823d84b4cb0 660 return 200;
sakthipriya 0:7b4c00e3912f 661 }
sakthipriya 0:7b4c00e3912f 662
sakthipriya 0:7b4c00e3912f 663
sakthipriya 0:7b4c00e3912f 664
sakthipriya 0:7b4c00e3912f 665 // Get the current C rate measurement of the MAX17049
sakthipriya 0:7b4c00e3912f 666 float crate()
sakthipriya 0:7b4c00e3912f 667 {
sakthipriya 0:7b4c00e3912f 668 //Read the 16-bit raw C/Rate value
sakthipriya 0:7b4c00e3912f 669 short value = read(REG_CRATE);
sakthipriya 0:7b4c00e3912f 670
sakthipriya 0:7b4c00e3912f 671 //Return C/Rate in %/hr
sakthipriya 0:7b4c00e3912f 672 return value * 0.208;
sakthipriya 0:7b4c00e3912f 673 }
sakthipriya 0:7b4c00e3912f 674
sakthipriya 0:7b4c00e3912f 675 // Determine whether or not the MAX17049 is asserting the ALRT pin
sakthipriya 0:7b4c00e3912f 676 bool alerting()
sakthipriya 0:7b4c00e3912f 677 {
sakthipriya 0:7b4c00e3912f 678 //Read the 16-bit register value
sakthipriya 0:7b4c00e3912f 679 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 680
sakthipriya 0:7b4c00e3912f 681 //Return the status of the ALRT bit
sakthipriya 0:7b4c00e3912f 682 if (value & (1 << 5))
sakthipriya 0:7b4c00e3912f 683 return true;
sakthipriya 0:7b4c00e3912f 684 else
sakthipriya 0:7b4c00e3912f 685 return false;
sakthipriya 2:c823d84b4cb0 686 }
sakthipriya 2:c823d84b4cb0 687
sakthipriya 2:c823d84b4cb0 688 //.............................Battery board Temp sensor........................//
sakthipriya 2:c823d84b4cb0 689 void FCTN_BATTTEMP_INIT()
sakthipriya 2:c823d84b4cb0 690 {
sakthipriya 2:c823d84b4cb0 691 ssn1=1;ssn2=1;
sakthipriya 2:c823d84b4cb0 692 //PS=0;
sakthipriya 2:c823d84b4cb0 693 //HS=0;
sakthipriya 2:c823d84b4cb0 694 spi_bt.format(8,3);
sakthipriya 2:c823d84b4cb0 695 spi_bt.frequency(1000000);
sakthipriya 2:c823d84b4cb0 696 }
sakthipriya 2:c823d84b4cb0 697
sakthipriya 2:c823d84b4cb0 698 void FCTN_BATT_TEMP_SENSOR_MAIN(float temp[2])
sakthipriya 2:c823d84b4cb0 699 {
sakthipriya 2:c823d84b4cb0 700 uint8_t MSB, LSB;
sakthipriya 2:c823d84b4cb0 701 int16_t bit_data;
sakthipriya 2:c823d84b4cb0 702 float sensitivity=0.0078125; //1 LSB = sensitivity degree celcius
sakthipriya 2:c823d84b4cb0 703 wait_ms(320);
sakthipriya 2:c823d84b4cb0 704 ssn1=0;
sakthipriya 2:c823d84b4cb0 705
sakthipriya 2:c823d84b4cb0 706 spi_bt.write(0x80);//Reading digital data from Sensor 1
sakthipriya 2:c823d84b4cb0 707 LSB = spi_bt.write(0x00);//LSB first
sakthipriya 2:c823d84b4cb0 708 wait_ms(0);
sakthipriya 2:c823d84b4cb0 709 MSB = spi_bt.write(0x00);
sakthipriya 2:c823d84b4cb0 710 wait_ms(10);
sakthipriya 2:c823d84b4cb0 711 pc_eps.printf("%d %d\n",MSB,LSB);
sakthipriya 2:c823d84b4cb0 712 bit_data= ((uint16_t)MSB<<8)|LSB;
sakthipriya 2:c823d84b4cb0 713 wait_ms(10);
sakthipriya 2:c823d84b4cb0 714 temp[0]=(float)bit_data*sensitivity;//Converting into decimal value
sakthipriya 2:c823d84b4cb0 715 ssn1=1;
sakthipriya 2:c823d84b4cb0 716 wait_ms(10);
sakthipriya 2:c823d84b4cb0 717 ssn2=0;//Reading data from sensor 2
sakthipriya 2:c823d84b4cb0 718 spi_bt.write(0x80);
sakthipriya 2:c823d84b4cb0 719 LSB = spi_bt.write(0x00);
sakthipriya 2:c823d84b4cb0 720 wait_ms(10);
sakthipriya 2:c823d84b4cb0 721 MSB = spi_bt.write(0x00);
sakthipriya 2:c823d84b4cb0 722 wait_ms(10);
sakthipriya 2:c823d84b4cb0 723 bit_data= ((int16_t)MSB<<8)|LSB;
sakthipriya 2:c823d84b4cb0 724 wait_ms(10);
sakthipriya 2:c823d84b4cb0 725 temp[1]=(float)bit_data*sensitivity;
sakthipriya 2:c823d84b4cb0 726 ssn2=1;
sakthipriya 2:c823d84b4cb0 727
sakthipriya 2:c823d84b4cb0 728 }