Prasanth B J / Mbed 2 deprecated ACS_Flowchart_BAE

I2C BAE standalone hardware testing

Dependencies:   FreescaleIAP mbed-rtos mbed

Fork of ACS_Flowchart_BAE_1 by Team Fox

EPS.cpp@19:95ba0ed3370c, 2016-07-06 (annotated)

Committer:
prasanthbj05
Date:
Wed Jul 06 10:12:38 2016 +0000
Revision:
19:95ba0ed3370c
Parent:
17:8a8024c45dc0 
publishing for hardware i2c test;

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();
prasanthbj05 17:8a8024c45dc0 126 printf("\n\r the vol is %f",VoltageInput.read()*3.3);
sakthipriya 3:07e15677a75c 127 actual_data.current_actual[Iteration]=CurrentInput.read();
prasanthbj05 17:8a8024c45dc0 128 printf("\n\r the cur is %f",CurrentInput.read()*3.3);
sakthipriya 3:07e15677a75c 129
sakthipriya 3:07e15677a75c 130 SelectLinea0=!(SelectLinea0);
sakthipriya 3:07e15677a75c 131 if(Iteration%2==1)
sakthipriya 3:07e15677a75c 132 SelectLinea1=!(SelectLinea1);
sakthipriya 3:07e15677a75c 133 if(Iteration%4==3)
sakthipriya 3:07e15677a75c 134 SelectLinea2=!(SelectLinea2);
sakthipriya 3:07e15677a75c 135 if(Iteration%8==7)
sakthipriya 3:07e15677a75c 136 SelectLinea3=!(SelectLinea3);
sakthipriya 3:07e15677a75c 137 int s0,s1,s2,s3;
sakthipriya 3:07e15677a75c 138 s0=SelectLineb0=SelectLinea0;
sakthipriya 3:07e15677a75c 139 s1=SelectLineb1=SelectLinea2;
sakthipriya 3:07e15677a75c 140 s2=SelectLineb2=SelectLinea2;
sakthipriya 3:07e15677a75c 141 s3=SelectLineb3=SelectLinea3;
sakthipriya 3:07e15677a75c 142 printf("\n\r %d %d %d %d", s0,s1,s2,s3);
sakthipriya 3:07e15677a75c 143
sakthipriya 3:07e15677a75c 144 }
sakthipriya 3:07e15677a75c 145 for(Iteration=0; Iteration<16; Iteration++){
sakthipriya 3:07e15677a75c 146
sakthipriya 3:07e15677a75c 147 if(Iteration==14)
sakthipriya 3:07e15677a75c 148 actual_data.voltage_actual[Iteration]= (-90.7*3.3*actual_data.voltage_actual[Iteration])+190.1543;
sakthipriya 3:07e15677a75c 149 else
sakthipriya 3:07e15677a75c 150 actual_data.voltage_actual[Iteration]= actual_data.voltage_actual[Iteration]*3.3*5.63;
sakthipriya 3:07e15677a75c 151 }
sakthipriya 3:07e15677a75c 152
sakthipriya 3:07e15677a75c 153 for(Iteration=0;Iteration<12;Iteration++){
sakthipriya 3:07e15677a75c 154 if(Iteration<8)
sakthipriya 3:07e15677a75c 155 actual_data.current_actual[Iteration]= actual_data.current_actual[Iteration]*3.3/(50*rsens);
sakthipriya 3:07e15677a75c 156 else
sakthipriya 3:07e15677a75c 157 actual_data.current_actual[Iteration]=actual_data.current_actual[Iteration]*3.3;
sakthipriya 3:07e15677a75c 158 int resistance;
sakthipriya 3:07e15677a75c 159
sakthipriya 3:07e15677a75c 160 resistance=24000*actual_data.current_actual[Iteration]/(3.3-actual_data.current_actual[Iteration]);
sakthipriya 3:07e15677a75c 161 if(actual_data.current_actual[Iteration]>1.47)
sakthipriya 3:07e15677a75c 162 {
sakthipriya 3:07e15677a75c 163 actual_data.current_actual[Iteration]=3694/log(24.032242*resistance);
sakthipriya 3:07e15677a75c 164 }
sakthipriya 3:07e15677a75c 165 else{
sakthipriya 3:07e15677a75c 166
sakthipriya 3:07e15677a75c 167 actual_data.current_actual[Iteration]=3365.4/log(7.60573*resistance);
sakthipriya 3:07e15677a75c 168 }
sakthipriya 3:07e15677a75c 169 }
sakthipriya 3:07e15677a75c 170 actual_data.BAE_temp_actual=(-90.7*3.3*actual_data.BAE_temp_actual)+190.1543;
sakthipriya 3:07e15677a75c 171
sakthipriya 3:07e15677a75c 172 actual_data.Batt_voltage_actual=Batt_voltage.read()*3.3*5.63;
sakthipriya 3:07e15677a75c 173
sakthipriya 3:07e15677a75c 174 //quantizing data
sakthipriya 3:07e15677a75c 175 for(Iteration=0; Iteration<16; Iteration++){
sakthipriya 3:07e15677a75c 176
sakthipriya 3:07e15677a75c 177 if(Iteration==14)
sakthipriya 3:07e15677a75c 178 quant_data.voltage_quant[Iteration]=quantiz(tstart,tstep,actual_data.voltage_actual[Iteration]);
sakthipriya 3:07e15677a75c 179 else
sakthipriya 3:07e15677a75c 180 quant_data.voltage_quant[Iteration]=quantiz(vstart,vstep,actual_data.voltage_actual[Iteration]);
sakthipriya 3:07e15677a75c 181
sakthipriya 3:07e15677a75c 182 }
sakthipriya 3:07e15677a75c 183 for(Iteration=0;Iteration<12;Iteration++){
sakthipriya 3:07e15677a75c 184 if(Iteration<8)
sakthipriya 3:07e15677a75c 185 quant_data.current_quant[Iteration]=quantiz(cstart,cstep,actual_data.current_actual[Iteration]);
sakthipriya 3:07e15677a75c 186 else
sakthipriya 3:07e15677a75c 187 quant_data.current_quant[Iteration]=quantiz(tstart_thermistor,tstep_thermistor,actual_data.current_actual[Iteration]);
sakthipriya 3:07e15677a75c 188 }
sakthipriya 3:07e15677a75c 189 for(Iteration=0;Iteration<2;Iteration++){
sakthipriya 3:07e15677a75c 190
sakthipriya 3:07e15677a75c 191 quant_data.Batt_temp_quant[Iteration]=quantiz(tstart,tstep,actual_data.Batt_temp_actual[Iteration]);
sakthipriya 3:07e15677a75c 192 }
sakthipriya 3:07e15677a75c 193
sakthipriya 3:07e15677a75c 194 quant_data.Batt_gauge_quant[0]=quantiz(vcell_start,vcell_step,actual_data.Batt_gauge_actual[0]);
sakthipriya 3:07e15677a75c 195 quant_data.Batt_gauge_quant[1]=quantiz(soc_start,soc_step,actual_data.Batt_gauge_actual[1]);
sakthipriya 3:07e15677a75c 196 quant_data.Batt_gauge_quant[2]=quantiz(crate_start,crate_step,actual_data.Batt_gauge_actual[2]);
sakthipriya 3:07e15677a75c 197 quant_data.Batt_gauge_alerts=actual_data.Batt_gauge_actual[3];
sakthipriya 3:07e15677a75c 198
sakthipriya 3:07e15677a75c 199 quant_data.BAE_temp_quant=quantiz(tstart,tstep,actual_data.BAE_temp_actual);
sakthipriya 3:07e15677a75c 200
sakthipriya 3:07e15677a75c 201 for(Iteration=0;Iteration<3;Iteration++){
sakthipriya 5:bb592f3185cc 202 quant_data.AngularSpeed_quant[Iteration]=actual_data.AngularSpeed_actual[Iteration];
sakthipriya 6:036d08b62785 203 printf("\n\r w value %f",quant_data.AngularSpeed_quant[Iteration]);
sakthipriya 3:07e15677a75c 204 }
sakthipriya 3:07e15677a75c 205
sakthipriya 3:07e15677a75c 206 for(Iteration=0;Iteration<3;Iteration++){
sakthipriya 3:07e15677a75c 207 quant_data.Bvalue_quant[Iteration]=actual_data.Bvalue_actual[Iteration];
sakthipriya 6:036d08b62785 208 printf("\n\r b value %f",quant_data.Bvalue_quant[Iteration]);
sakthipriya 3:07e15677a75c 209 }
sakthipriya 3:07e15677a75c 210
sakthipriya 3:07e15677a75c 211 quant_data.Batt_voltage_quant=quantiz(vstart,vstep,actual_data.Batt_voltage_actual);
sakthipriya 3:07e15677a75c 212
sakthipriya 3:07e15677a75c 213
sakthipriya 3:07e15677a75c 214 arch_data.Batt_1_temp=quant_data.Batt_temp_quant[0];
sakthipriya 3:07e15677a75c 215 arch_data.Batt_2_temp=quant_data.Batt_temp_quant[1];
sakthipriya 3:07e15677a75c 216 arch_data.EPS_PCB_temp=quant_data.voltage_quant[14];
sakthipriya 3:07e15677a75c 217 arch_data.Batt_SOC=quant_data.Batt_gauge_quant[1];
sakthipriya 3:07e15677a75c 218 arch_data.power_mode=actual_data.power_mode;
sakthipriya 5:bb592f3185cc 219 arch_data.faultPoll_status=actual_data.faultPoll_status;
sakthipriya 5:bb592f3185cc 220 arch_data.faultIr_status=actual_data.faultIr_status;
sakthipriya 3:07e15677a75c 221 arch_data.Batt_voltage=quant_data.Batt_voltage_quant;
sakthipriya 6:036d08b62785 222 printf("\n\r in hk");
sakthipriya 3:07e15677a75c 223
sakthipriya 3:07e15677a75c 224 }
sakthipriya 3:07e15677a75c 225
sakthipriya 5:bb592f3185cc 226 void FCTN_APPEND_HKDATA()
sakthipriya 5:bb592f3185cc 227 {
sakthipriya 5:bb592f3185cc 228 // quantized data
sakthipriya 5:bb592f3185cc 229 for (int i=0;i<16;i++)
sakthipriya 5:bb592f3185cc 230 BAE_data[i] = quant_data.voltage_quant[i];
sakthipriya 5:bb592f3185cc 231 for (int i=16;i<28;i++)
sakthipriya 5:bb592f3185cc 232 BAE_data[i] = quant_data.current_quant[i-16];
sakthipriya 5:bb592f3185cc 233 BAE_data[28] = quant_data.Batt_temp_quant[0];
sakthipriya 5:bb592f3185cc 234 BAE_data[29] = quant_data.Batt_temp_quant[1];
sakthipriya 5:bb592f3185cc 235 BAE_data[30] = quant_data.Batt_gauge_quant[1];
sakthipriya 5:bb592f3185cc 236 BAE_data[31] = quant_data.Batt_gauge_quant[1];
sakthipriya 5:bb592f3185cc 237 BAE_data[32] = quant_data.Batt_gauge_quant[1];
sakthipriya 5:bb592f3185cc 238 FCTN_CONVERT_FLOAT(quant_data.Batt_gauge_alerts,&BAE_data[33]);
sakthipriya 5:bb592f3185cc 239 BAE_data[37] = quant_data.BAE_temp_quant;
sakthipriya 5:bb592f3185cc 240 FCTN_CONVERT_FLOAT(quant_data.AngularSpeed_quant[0],&BAE_data[38]);
sakthipriya 6:036d08b62785 241 //printf("\n\r outside %d %d %d %d", BAE_data[38],BAE_data[39],BAE_data[40],BAE_data[41]);
sakthipriya 6:036d08b62785 242 //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 243 FCTN_CONVERT_FLOAT(quant_data.AngularSpeed_quant[1],&BAE_data[42]);
sakthipriya 6:036d08b62785 244 //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 245 // printf("\n\r outside %d %d %d %d", BAE_data[42],BAE_data[43],BAE_data[44],BAE_data[45]);
sakthipriya 5:bb592f3185cc 246 FCTN_CONVERT_FLOAT(quant_data.AngularSpeed_quant[2],&BAE_data[46]);
sakthipriya 6:036d08b62785 247 //printf("\n\r outside %d %d %d %d", BAE_data[46],BAE_data[47],BAE_data[48],BAE_data[49]);
sakthipriya 6:036d08b62785 248 //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 249 FCTN_CONVERT_FLOAT(quant_data.Bvalue_quant[0],&BAE_data[50]);
sakthipriya 5:bb592f3185cc 250 FCTN_CONVERT_FLOAT(quant_data.Bvalue_quant[1],&BAE_data[54]);
sakthipriya 5:bb592f3185cc 251 FCTN_CONVERT_FLOAT(quant_data.Bvalue_quant[2],&BAE_data[58]);
sakthipriya 5:bb592f3185cc 252 BAE_data[62] = quant_data.Batt_voltage_quant;
sakthipriya 5:bb592f3185cc 253 BAE_data[63] = (uint8_t)actual_data.power_mode;
sakthipriya 5:bb592f3185cc 254 BAE_data[64] = actual_data.faultPoll_status;
sakthipriya 5:bb592f3185cc 255 BAE_data[65] = actual_data.faultIr_status;
sakthipriya 5:bb592f3185cc 256 // archived data
sakthipriya 5:bb592f3185cc 257 BAE_data[66] = arch_data.Batt_1_temp; //verify if uint8_t is right
sakthipriya 5:bb592f3185cc 258 BAE_data[67] = arch_data.Batt_2_temp;
sakthipriya 5:bb592f3185cc 259 BAE_data[68] = arch_data.EPS_PCB_temp;
sakthipriya 5:bb592f3185cc 260 BAE_data[69] = arch_data.Batt_SOC;
sakthipriya 5:bb592f3185cc 261 BAE_data[70] = (uint8_t)arch_data.power_mode;
sakthipriya 5:bb592f3185cc 262 BAE_data[71] = arch_data.faultPoll_status;
sakthipriya 5:bb592f3185cc 263 BAE_data[72] = arch_data.faultIr_status;
sakthipriya 5:bb592f3185cc 264 BAE_data[73] = arch_data.Batt_voltage;
sakthipriya 6:036d08b62785 265 for(int i=0; i<73;i++)
sakthipriya 6:036d08b62785 266 BAE_chardata[i] = (char)BAE_data[i];
sakthipriya 6:036d08b62785 267 BAE_chardata[73] = '\0';
sakthipriya 7:a46a1dee4497 268 printf("\n\r bae ats data %c %c %c", BAE_chardata[38],BAE_chardata[39],BAE_chardata[40]);
sakthipriya 6:036d08b62785 269 printf("\n\r BAE data is %s", BAE_chardata);
sakthipriya 5:bb592f3185cc 270
sakthipriya 5:bb592f3185cc 271 }
sakthipriya 5:bb592f3185cc 272
sakthipriya 5:bb592f3185cc 273 uint8_t quantiz(float start,float step,float x)
sakthipriya 0:7b4c00e3912f 274 {
sakthipriya 0:7b4c00e3912f 275 int y=(x-start)/step;
sakthipriya 0:7b4c00e3912f 276 if(y<=0)y=0;
sakthipriya 0:7b4c00e3912f 277 if(y>=255)y=255;
sakthipriya 0:7b4c00e3912f 278 return y;
sakthipriya 0:7b4c00e3912f 279 }
sakthipriya 0:7b4c00e3912f 280
sakthipriya 3:07e15677a75c 281 bool firstCount=true; // goes to EPS init
sakthipriya 3:07e15677a75c 282
sakthipriya 3:07e15677a75c 283
sakthipriya 3:07e15677a75c 284 void saveMin(char x,char y){
sakthipriya 3:07e15677a75c 285 if(y<x){
sakthipriya 3:07e15677a75c 286 x=y;
sakthipriya 3:07e15677a75c 287 }
sakthipriya 3:07e15677a75c 288
sakthipriya 3:07e15677a75c 289 }
sakthipriya 3:07e15677a75c 290 void saveMax(char x,char y){
sakthipriya 3:07e15677a75c 291 if (y>x)
sakthipriya 3:07e15677a75c 292 {
sakthipriya 3:07e15677a75c 293 x=y;
sakthipriya 3:07e15677a75c 294 }
sakthipriya 0:7b4c00e3912f 295 }
sakthipriya 0:7b4c00e3912f 296
sakthipriya 3:07e15677a75c 297
sakthipriya 3:07e15677a75c 298 void minMaxHkData(){
sakthipriya 3:07e15677a75c 299 if(firstCount==true){
sakthipriya 3:07e15677a75c 300 for (int i = 0; i < 16; ++i){
sakthipriya 3:07e15677a75c 301 bae_HK_minmax.voltage_min[i] = quant_data.voltage_quant[i];
sakthipriya 3:07e15677a75c 302 bae_HK_minmax.voltage_max[i] = quant_data.voltage_quant[i];
sakthipriya 3:07e15677a75c 303 }
sakthipriya 3:07e15677a75c 304 for (int i = 0; i < 12; ++i){
sakthipriya 3:07e15677a75c 305 bae_HK_minmax.current_min[i] = quant_data.current_quant[i];
sakthipriya 3:07e15677a75c 306 bae_HK_minmax.current_max[i] = quant_data.current_quant[i];
sakthipriya 3:07e15677a75c 307 }
sakthipriya 3:07e15677a75c 308
sakthipriya 3:07e15677a75c 309 for (int i = 0; i < 2; ++i){
sakthipriya 3:07e15677a75c 310 bae_HK_minmax.Batt_temp_min[i] = quant_data.Batt_temp_quant[i];
sakthipriya 3:07e15677a75c 311 bae_HK_minmax.Batt_temp_max[i] = quant_data.Batt_temp_quant[i];
sakthipriya 3:07e15677a75c 312 }
sakthipriya 3:07e15677a75c 313 for (int i = 0; i < 3; ++i){
sakthipriya 3:07e15677a75c 314 bae_HK_minmax.Batt_gauge_min[i] = quant_data.Batt_gauge_quant[i];
sakthipriya 3:07e15677a75c 315 bae_HK_minmax.Batt_gauge_max[i] = quant_data.Batt_gauge_quant[i];
sakthipriya 3:07e15677a75c 316 }
sakthipriya 3:07e15677a75c 317 for (int i = 0; i < 3; ++i){
sakthipriya 3:07e15677a75c 318 bae_HK_minmax.AngularSpeed_min[i] = quant_data.AngularSpeed_quant[i];
sakthipriya 3:07e15677a75c 319 bae_HK_minmax.AngularSpeed_max[i] = quant_data.AngularSpeed_quant[i];
sakthipriya 3:07e15677a75c 320 }
sakthipriya 3:07e15677a75c 321 for (int i = 0; i < 3; ++i){
sakthipriya 3:07e15677a75c 322 bae_HK_minmax.Bvalue_min[i] = quant_data.Bvalue_quant[i];
sakthipriya 3:07e15677a75c 323 bae_HK_minmax.Bvalue_max[i] = quant_data.Bvalue_quant[i];
sakthipriya 3:07e15677a75c 324 }
sakthipriya 3:07e15677a75c 325 bae_HK_minmax.BAE_temp_min=quant_data.BAE_temp_quant;
sakthipriya 3:07e15677a75c 326 bae_HK_minmax.BAE_temp_max=quant_data.BAE_temp_quant;
sakthipriya 3:07e15677a75c 327 bae_HK_minmax.Batt_voltage_min=quant_data.Batt_voltage_quant;
sakthipriya 3:07e15677a75c 328 bae_HK_minmax.Batt_voltage_max=quant_data.Batt_voltage_quant;
sakthipriya 3:07e15677a75c 329
sakthipriya 3:07e15677a75c 330 }
sakthipriya 3:07e15677a75c 331 else {
sakthipriya 3:07e15677a75c 332 for (int i = 0; i < 16; ++i)
sakthipriya 3:07e15677a75c 333 {
sakthipriya 3:07e15677a75c 334 saveMin(bae_HK_minmax.voltage_min[i],quant_data.voltage_quant[i]);
sakthipriya 3:07e15677a75c 335 saveMax(bae_HK_minmax.voltage_max[i],quant_data.voltage_quant[i]);
sakthipriya 3:07e15677a75c 336 }
sakthipriya 3:07e15677a75c 337 for (int i = 0; i < 12; ++i)
sakthipriya 3:07e15677a75c 338 {
sakthipriya 3:07e15677a75c 339 saveMin(bae_HK_minmax.current_min[i],quant_data.current_quant[i]);
sakthipriya 3:07e15677a75c 340 saveMax(bae_HK_minmax.current_max[i],quant_data.current_quant[i]);
sakthipriya 3:07e15677a75c 341 }
sakthipriya 3:07e15677a75c 342
sakthipriya 3:07e15677a75c 343 for (int i = 0; i < 2; ++i)
sakthipriya 3:07e15677a75c 344 {
sakthipriya 3:07e15677a75c 345 saveMin(bae_HK_minmax.Batt_temp_min[i],quant_data.Batt_temp_quant[i]);
sakthipriya 3:07e15677a75c 346 saveMax(bae_HK_minmax.Batt_temp_max[i],quant_data.Batt_temp_quant[i]);
sakthipriya 3:07e15677a75c 347 }
sakthipriya 3:07e15677a75c 348 for (int i = 0; i < 3; ++i)
sakthipriya 3:07e15677a75c 349 {
sakthipriya 3:07e15677a75c 350 saveMin(bae_HK_minmax.Batt_gauge_min[i], quant_data.Batt_gauge_quant[i]);
sakthipriya 3:07e15677a75c 351 saveMax(bae_HK_minmax.Batt_gauge_max[i], quant_data.Batt_gauge_quant[i]);
sakthipriya 3:07e15677a75c 352 }
sakthipriya 3:07e15677a75c 353 for (int i = 0; i < 3; ++i)
sakthipriya 3:07e15677a75c 354 {
sakthipriya 3:07e15677a75c 355 saveMin(bae_HK_minmax.AngularSpeed_min[i], quant_data.AngularSpeed_quant[i]);
sakthipriya 3:07e15677a75c 356 saveMax(bae_HK_minmax.AngularSpeed_max[i], quant_data.AngularSpeed_quant[i]);
sakthipriya 3:07e15677a75c 357 }
sakthipriya 3:07e15677a75c 358 for (int i = 0; i < 3; ++i)
sakthipriya 3:07e15677a75c 359 {
sakthipriya 3:07e15677a75c 360 saveMin(bae_HK_minmax.Bvalue_min[i], quant_data.Bvalue_quant[i]);
sakthipriya 3:07e15677a75c 361 saveMax(bae_HK_minmax.Bvalue_max[i], quant_data.Bvalue_quant[i]);
sakthipriya 3:07e15677a75c 362 }
sakthipriya 3:07e15677a75c 363 saveMin(bae_HK_minmax.BAE_temp_min,quant_data.BAE_temp_quant);
sakthipriya 3:07e15677a75c 364 saveMax(bae_HK_minmax.BAE_temp_max,quant_data.BAE_temp_quant);
sakthipriya 3:07e15677a75c 365 saveMin(bae_HK_minmax.Batt_voltage_min,quant_data.Batt_voltage_quant);
sakthipriya 3:07e15677a75c 366 saveMin(bae_HK_minmax.Batt_voltage_max,quant_data.Batt_voltage_quant);
sakthipriya 3:07e15677a75c 367
sakthipriya 3:07e15677a75c 368
sakthipriya 3:07e15677a75c 369 }
sakthipriya 3:07e15677a75c 370 firstCount=false;
sakthipriya 3:07e15677a75c 371 }
sakthipriya 3:07e15677a75c 372
sakthipriya 3:07e15677a75c 373
sakthipriya 0:7b4c00e3912f 374 //............................................BATTERY GAUGE......................................//
sakthipriya 0:7b4c00e3912f 375 void FCTN_BATTERYGAUGE_INIT()
sakthipriya 0:7b4c00e3912f 376 {
sakthipriya 0:7b4c00e3912f 377 disable_sleep();
sakthipriya 0:7b4c00e3912f 378 disable_hibernate();
sakthipriya 0:7b4c00e3912f 379 socChangeAlertEnabled(true); //enabling alert on soc changing by 1%
sakthipriya 0:7b4c00e3912f 380 emptyAlertThreshold(32);//setting empty alert threshold to 32% soc
sakthipriya 0:7b4c00e3912f 381 vAlertMinMaxThreshold();//set min, max value of Valrt register
sakthipriya 0:7b4c00e3912f 382 vResetThresholdSet();//set threshold voltage for reset
sakthipriya 0:7b4c00e3912f 383 vResetAlertEnabled(true);//enable alert on reset for V < Vreset
sakthipriya 0:7b4c00e3912f 384 }
sakthipriya 0:7b4c00e3912f 385
sakthipriya 0:7b4c00e3912f 386 void FCTN_BATTERYGAUGE_MAIN(float Battery_parameters[4])
sakthipriya 0:7b4c00e3912f 387 {
sakthipriya 1:446a959e36ce 388 printf("\n\r battery gauge \n");
sakthipriya 0:7b4c00e3912f 389
sakthipriya 3:07e15677a75c 390 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 391 tempCompensation(temp);
sakthipriya 0:7b4c00e3912f 392
sakthipriya 0:7b4c00e3912f 393
sakthipriya 0:7b4c00e3912f 394 Battery_parameters[0]=vcell();
sakthipriya 0:7b4c00e3912f 395 Battery_parameters[1]=soc();
sakthipriya 0:7b4c00e3912f 396 Battery_parameters[2]=crate();
sakthipriya 0:7b4c00e3912f 397
sakthipriya 0:7b4c00e3912f 398 printf("\nVcell=%f",vcell()); //remove this for final code
sakthipriya 0:7b4c00e3912f 399 printf("\nSOC=%f",soc()); //remove this for final code
sakthipriya 0:7b4c00e3912f 400 printf("\nC_rate=%f",crate()); //remove this for final code
sakthipriya 0:7b4c00e3912f 401
sakthipriya 0:7b4c00e3912f 402
sakthipriya 0:7b4c00e3912f 403 if (alerting()== true) //alert is on
sakthipriya 0:7b4c00e3912f 404 {
sakthipriya 0:7b4c00e3912f 405 Battery_parameters[3]=alertFlags();
sakthipriya 0:7b4c00e3912f 406 clearAlert();//clear alert
sakthipriya 0:7b4c00e3912f 407 clearAlertFlags();//clear all alert flags
sakthipriya 0:7b4c00e3912f 408 }
sakthipriya 0:7b4c00e3912f 409
sakthipriya 0:7b4c00e3912f 410 }
sakthipriya 0:7b4c00e3912f 411
sakthipriya 0:7b4c00e3912f 412 unsigned short read(char reg)
sakthipriya 0:7b4c00e3912f 413 {
sakthipriya 0:7b4c00e3912f 414
sakthipriya 0:7b4c00e3912f 415 //Create a temporary buffer
sakthipriya 0:7b4c00e3912f 416 char buff[2];
sakthipriya 0:7b4c00e3912f 417
sakthipriya 0:7b4c00e3912f 418 //Select the register
sakthipriya 0:7b4c00e3912f 419 m_I2C.write(m_ADDR, &reg, 1, true);
sakthipriya 0:7b4c00e3912f 420
sakthipriya 0:7b4c00e3912f 421 //Read the 16-bit register
sakthipriya 0:7b4c00e3912f 422 m_I2C.read(m_ADDR, buff, 2);
sakthipriya 0:7b4c00e3912f 423
sakthipriya 0:7b4c00e3912f 424 //Return the combined 16-bit value
sakthipriya 0:7b4c00e3912f 425 return (buff[0] << 8) | buff[1];
sakthipriya 0:7b4c00e3912f 426 }
sakthipriya 0:7b4c00e3912f 427
sakthipriya 3:07e15677a75c 428
sakthipriya 1:446a959e36ce 429
sakthipriya 3:07e15677a75c 430
sakthipriya 0:7b4c00e3912f 431
sakthipriya 0:7b4c00e3912f 432 void write(char reg, unsigned short data)
sakthipriya 0:7b4c00e3912f 433 {
sakthipriya 0:7b4c00e3912f 434 //Create a temporary buffer
sakthipriya 0:7b4c00e3912f 435 char buff[3];
sakthipriya 0:7b4c00e3912f 436
sakthipriya 0:7b4c00e3912f 437 //Load the register address and 16-bit data
sakthipriya 0:7b4c00e3912f 438 buff[0] = reg;
sakthipriya 0:7b4c00e3912f 439 buff[1] = data >> 8;
sakthipriya 0:7b4c00e3912f 440 buff[2] = data;
sakthipriya 0:7b4c00e3912f 441
sakthipriya 0:7b4c00e3912f 442 //Write the data
sakthipriya 0:7b4c00e3912f 443 m_I2C.write(m_ADDR, buff, 3);
sakthipriya 0:7b4c00e3912f 444 }
sakthipriya 0:7b4c00e3912f 445
sakthipriya 0:7b4c00e3912f 446
sakthipriya 0:7b4c00e3912f 447
sakthipriya 0:7b4c00e3912f 448 // Command the MAX17049 to perform a power-on reset
sakthipriya 0:7b4c00e3912f 449 void reset()
sakthipriya 0:7b4c00e3912f 450 {
sakthipriya 0:7b4c00e3912f 451 //Write the POR command
sakthipriya 0:7b4c00e3912f 452 write(REG_CMD, 0x5400);
sakthipriya 0:7b4c00e3912f 453 }
sakthipriya 0:7b4c00e3912f 454
sakthipriya 0:7b4c00e3912f 455 // Command the MAX17049 to perform a QuickStart
sakthipriya 0:7b4c00e3912f 456 void quickStart()
sakthipriya 0:7b4c00e3912f 457 {
sakthipriya 0:7b4c00e3912f 458 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 459 unsigned short value = read(REG_MODE);
lakshya 15:e09aaaccf134 460
sakthipriya 0:7b4c00e3912f 461 //Set the QuickStart bit
sakthipriya 0:7b4c00e3912f 462 value |= (1 << 14);
sakthipriya 0:7b4c00e3912f 463
sakthipriya 0:7b4c00e3912f 464 //Write the value back out
sakthipriya 0:7b4c00e3912f 465 write(REG_MODE, value);
sakthipriya 0:7b4c00e3912f 466 }
sakthipriya 0:7b4c00e3912f 467
sakthipriya 0:7b4c00e3912f 468
sakthipriya 0:7b4c00e3912f 469 //disable sleep
sakthipriya 0:7b4c00e3912f 470 void disable_sleep()
sakthipriya 0:7b4c00e3912f 471 {
sakthipriya 0:7b4c00e3912f 472 unsigned short value = read(REG_MODE);
sakthipriya 0:7b4c00e3912f 473 value &= ~(1 << 13);
sakthipriya 0:7b4c00e3912f 474 write(REG_MODE, value);
sakthipriya 0:7b4c00e3912f 475 }
sakthipriya 0:7b4c00e3912f 476
sakthipriya 0:7b4c00e3912f 477 //disable the hibernate of the MAX17049
sakthipriya 0:7b4c00e3912f 478 void disable_hibernate()
sakthipriya 0:7b4c00e3912f 479 {
sakthipriya 0:7b4c00e3912f 480 write(REG_HIBRT, 0x0000);
sakthipriya 0:7b4c00e3912f 481 }
sakthipriya 0:7b4c00e3912f 482
sakthipriya 0:7b4c00e3912f 483
sakthipriya 0:7b4c00e3912f 484 // Enable or disable the SOC 1% change alert on the MAX17049
sakthipriya 0:7b4c00e3912f 485 void socChangeAlertEnabled(bool enabled)
sakthipriya 0:7b4c00e3912f 486 {
sakthipriya 0:7b4c00e3912f 487 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 488 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 489
sakthipriya 0:7b4c00e3912f 490 //Set or clear the ALSC bit
sakthipriya 0:7b4c00e3912f 491 if (enabled)
sakthipriya 0:7b4c00e3912f 492 value |= (1 << 6);
sakthipriya 0:7b4c00e3912f 493 else
sakthipriya 0:7b4c00e3912f 494 value &= ~(1 << 6);
sakthipriya 0:7b4c00e3912f 495
sakthipriya 0:7b4c00e3912f 496 //Write the value back out
sakthipriya 0:7b4c00e3912f 497 write(REG_CONFIG, value);
sakthipriya 0:7b4c00e3912f 498 }
sakthipriya 0:7b4c00e3912f 499
sakthipriya 0:7b4c00e3912f 500
sakthipriya 0:7b4c00e3912f 501 void compensation(char rcomp)
sakthipriya 0:7b4c00e3912f 502 {
sakthipriya 0:7b4c00e3912f 503 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 504 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 505
sakthipriya 0:7b4c00e3912f 506 //Update the register value
sakthipriya 0:7b4c00e3912f 507 value &= 0x00FF;
sakthipriya 0:7b4c00e3912f 508 value |= rcomp << 8;
sakthipriya 0:7b4c00e3912f 509
sakthipriya 0:7b4c00e3912f 510 //Write the value back out
sakthipriya 0:7b4c00e3912f 511 write(REG_CONFIG, value);
sakthipriya 0:7b4c00e3912f 512 }
sakthipriya 0:7b4c00e3912f 513
sakthipriya 0:7b4c00e3912f 514
sakthipriya 0:7b4c00e3912f 515 void tempCompensation(float temp)
sakthipriya 0:7b4c00e3912f 516 {
sakthipriya 0:7b4c00e3912f 517 //Calculate the new RCOMP value
sakthipriya 0:7b4c00e3912f 518 char rcomp;
sakthipriya 0:7b4c00e3912f 519 if (temp > 20.0) {
sakthipriya 0:7b4c00e3912f 520 rcomp = RCOMP0 + (temp - 20.0) * -0.5;
sakthipriya 0:7b4c00e3912f 521 } else {
sakthipriya 0:7b4c00e3912f 522 rcomp = RCOMP0 + (temp - 20.0) * -5.0;
sakthipriya 0:7b4c00e3912f 523 }
sakthipriya 0:7b4c00e3912f 524
sakthipriya 0:7b4c00e3912f 525 //Update the RCOMP value
sakthipriya 0:7b4c00e3912f 526 compensation(rcomp);
sakthipriya 0:7b4c00e3912f 527 }
sakthipriya 0:7b4c00e3912f 528
sakthipriya 0:7b4c00e3912f 529 // Command the MAX17049 to de-assert the ALRT pin
sakthipriya 0:7b4c00e3912f 530 void clearAlert()
sakthipriya 0:7b4c00e3912f 531 {
sakthipriya 0:7b4c00e3912f 532 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 533 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 534
sakthipriya 0:7b4c00e3912f 535 //Clear the ALRT bit
sakthipriya 0:7b4c00e3912f 536 value &= ~(1 << 5);
sakthipriya 0:7b4c00e3912f 537
sakthipriya 0:7b4c00e3912f 538 //Write the value back out
sakthipriya 0:7b4c00e3912f 539 write(REG_CONFIG, value);
sakthipriya 0:7b4c00e3912f 540 }
sakthipriya 0:7b4c00e3912f 541
sakthipriya 0:7b4c00e3912f 542
sakthipriya 0:7b4c00e3912f 543 //Set the SOC empty alert threshold of the MAX17049
sakthipriya 0:7b4c00e3912f 544 void emptyAlertThreshold(char threshold)
sakthipriya 0:7b4c00e3912f 545 {
sakthipriya 0:7b4c00e3912f 546 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 547 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 548
sakthipriya 0:7b4c00e3912f 549 //Update the register value
sakthipriya 0:7b4c00e3912f 550 value &= 0xFFE0;
sakthipriya 0:7b4c00e3912f 551 value |= 32 - threshold;
sakthipriya 0:7b4c00e3912f 552
sakthipriya 0:7b4c00e3912f 553 //Write the 16-bit register
sakthipriya 0:7b4c00e3912f 554 write(REG_CONFIG, value);
sakthipriya 0:7b4c00e3912f 555 }
sakthipriya 0:7b4c00e3912f 556
sakthipriya 0:7b4c00e3912f 557 // Set the low and high voltage alert threshold of the MAX17049
sakthipriya 0:7b4c00e3912f 558 void vAlertMinMaxThreshold()
sakthipriya 0:7b4c00e3912f 559 {
sakthipriya 0:7b4c00e3912f 560 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 561 unsigned short value = read(REG_VALRT);
sakthipriya 0:7b4c00e3912f 562
sakthipriya 0:7b4c00e3912f 563 //Mask off the old value
sakthipriya 0:7b4c00e3912f 564
sakthipriya 0:7b4c00e3912f 565 value = 0x96D2;
sakthipriya 0:7b4c00e3912f 566
sakthipriya 0:7b4c00e3912f 567 //Write the 16-bit register
sakthipriya 0:7b4c00e3912f 568 write(REG_VALRT, value);
sakthipriya 0:7b4c00e3912f 569 }
sakthipriya 0:7b4c00e3912f 570
sakthipriya 0:7b4c00e3912f 571
sakthipriya 0:7b4c00e3912f 572 // Set the reset voltage threshold of the MAX17049
sakthipriya 0:7b4c00e3912f 573 void vResetThresholdSet()
sakthipriya 0:7b4c00e3912f 574 {
sakthipriya 0:7b4c00e3912f 575 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 576 unsigned short value = read(REG_VRESET_ID);
sakthipriya 0:7b4c00e3912f 577
sakthipriya 0:7b4c00e3912f 578 //Mask off the old //value
sakthipriya 0:7b4c00e3912f 579 value &= 0x00FF;//Dis=0
sakthipriya 0:7b4c00e3912f 580
sakthipriya 0:7b4c00e3912f 581 value |= 0x9400;//corresponding to 2.5 V
sakthipriya 0:7b4c00e3912f 582
sakthipriya 0:7b4c00e3912f 583
sakthipriya 0:7b4c00e3912f 584 //Write the 16-bit register
sakthipriya 0:7b4c00e3912f 585 write(REG_VRESET_ID, value);
sakthipriya 0:7b4c00e3912f 586 }
sakthipriya 0:7b4c00e3912f 587
sakthipriya 0:7b4c00e3912f 588
sakthipriya 0:7b4c00e3912f 589 // Enable or disable the voltage reset alert on the MAX17049
sakthipriya 0:7b4c00e3912f 590 void vResetAlertEnabled(bool enabled)
sakthipriya 0:7b4c00e3912f 591 {
sakthipriya 0:7b4c00e3912f 592 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 593 unsigned short value = read(REG_STATUS);
sakthipriya 0:7b4c00e3912f 594
sakthipriya 0:7b4c00e3912f 595 //Set or clear the EnVR bit
sakthipriya 0:7b4c00e3912f 596 if (enabled)
sakthipriya 0:7b4c00e3912f 597 value |= (1 << 14);
sakthipriya 0:7b4c00e3912f 598 else
sakthipriya 0:7b4c00e3912f 599 value &= ~(1 << 14);
sakthipriya 0:7b4c00e3912f 600
sakthipriya 0:7b4c00e3912f 601 //Write the value back out
sakthipriya 0:7b4c00e3912f 602 write(REG_STATUS, value);
sakthipriya 0:7b4c00e3912f 603 }
sakthipriya 0:7b4c00e3912f 604
sakthipriya 0:7b4c00e3912f 605 //Get the current alert flags on the MAX17049
sakthipriya 0:7b4c00e3912f 606 //refer datasheet-status registers section to decode it.
sakthipriya 0:7b4c00e3912f 607 char alertFlags()
sakthipriya 0:7b4c00e3912f 608 {
sakthipriya 0:7b4c00e3912f 609 //Read the 16-bit register value
sakthipriya 0:7b4c00e3912f 610 unsigned short value = read(REG_STATUS);
sakthipriya 0:7b4c00e3912f 611
sakthipriya 0:7b4c00e3912f 612 //Return only the flag bits
sakthipriya 0:7b4c00e3912f 613 return (value >> 8) & 0x3F;
sakthipriya 0:7b4c00e3912f 614 }
sakthipriya 0:7b4c00e3912f 615
sakthipriya 0:7b4c00e3912f 616 // Clear all the alert flags on the MAX17049
sakthipriya 0:7b4c00e3912f 617 void clearAlertFlags()
sakthipriya 0:7b4c00e3912f 618 {
sakthipriya 0:7b4c00e3912f 619 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 620 unsigned short value = read(REG_STATUS);
sakthipriya 0:7b4c00e3912f 621
sakthipriya 0:7b4c00e3912f 622 //Clear the specified flag bits
sakthipriya 0:7b4c00e3912f 623 value &= ~( 0x3F<< 8);
sakthipriya 0:7b4c00e3912f 624
sakthipriya 0:7b4c00e3912f 625 //Write the value back out
sakthipriya 0:7b4c00e3912f 626 write(REG_STATUS, value);
sakthipriya 0:7b4c00e3912f 627 }
sakthipriya 0:7b4c00e3912f 628
sakthipriya 0:7b4c00e3912f 629 // Get the current cell voltage measurement of the MAX17049
sakthipriya 0:7b4c00e3912f 630 float vcell()
sakthipriya 0:7b4c00e3912f 631 {
sakthipriya 1:446a959e36ce 632
sakthipriya 0:7b4c00e3912f 633 //Read the 16-bit raw Vcell value
sakthipriya 0:7b4c00e3912f 634 unsigned short value = read(REG_VCELL);
sakthipriya 0:7b4c00e3912f 635
sakthipriya 0:7b4c00e3912f 636 //Return Vcell in volts
sakthipriya 0:7b4c00e3912f 637 return value * 0.000078125*2;
sakthipriya 0:7b4c00e3912f 638 }
sakthipriya 0:7b4c00e3912f 639
sakthipriya 0:7b4c00e3912f 640 // Get the current state of charge measurement of the MAX17049 as a float
sakthipriya 0:7b4c00e3912f 641 float soc()
sakthipriya 0:7b4c00e3912f 642 {
sakthipriya 3:07e15677a75c 643
sakthipriya 3:07e15677a75c 644 //Create a temporary buffer
sakthipriya 0:7b4c00e3912f 645 char buff[2];
sakthipriya 3:07e15677a75c 646 int ack = 1;
sakthipriya 3:07e15677a75c 647 //Select the register
sakthipriya 3:07e15677a75c 648 char reg = REG_SOC; // cannot pass the hash defined values directly
sakthipriya 3:07e15677a75c 649 m_I2C.write(m_ADDR, &reg, 1, true);
sakthipriya 3:07e15677a75c 650
sakthipriya 3:07e15677a75c 651
sakthipriya 3:07e15677a75c 652 //Read the 16-bit register
sakthipriya 3:07e15677a75c 653
sakthipriya 3:07e15677a75c 654 ack = m_I2C.read(m_ADDR, buff, 2);
sakthipriya 3:07e15677a75c 655
sakthipriya 3:07e15677a75c 656 printf("\n\r acknow %d", ack);
sakthipriya 0:7b4c00e3912f 657
sakthipriya 0:7b4c00e3912f 658 //Return SOC in percent
sakthipriya 2:c823d84b4cb0 659 if(ack == 0)
sakthipriya 3:07e15677a75c 660 return ((buff[0] << 8) | buff[1]) * 0.00390625;
sakthipriya 2:c823d84b4cb0 661 else
sakthipriya 2:c823d84b4cb0 662 return 200;
sakthipriya 0:7b4c00e3912f 663 }
sakthipriya 0:7b4c00e3912f 664
sakthipriya 0:7b4c00e3912f 665
sakthipriya 0:7b4c00e3912f 666
sakthipriya 0:7b4c00e3912f 667 // Get the current C rate measurement of the MAX17049
sakthipriya 0:7b4c00e3912f 668 float crate()
sakthipriya 0:7b4c00e3912f 669 {
sakthipriya 0:7b4c00e3912f 670 //Read the 16-bit raw C/Rate value
sakthipriya 0:7b4c00e3912f 671 short value = read(REG_CRATE);
sakthipriya 0:7b4c00e3912f 672
sakthipriya 0:7b4c00e3912f 673 //Return C/Rate in %/hr
sakthipriya 0:7b4c00e3912f 674 return value * 0.208;
sakthipriya 0:7b4c00e3912f 675 }
sakthipriya 0:7b4c00e3912f 676
sakthipriya 0:7b4c00e3912f 677 // Determine whether or not the MAX17049 is asserting the ALRT pin
sakthipriya 0:7b4c00e3912f 678 bool alerting()
sakthipriya 0:7b4c00e3912f 679 {
sakthipriya 0:7b4c00e3912f 680 //Read the 16-bit register value
sakthipriya 0:7b4c00e3912f 681 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 682
sakthipriya 0:7b4c00e3912f 683 //Return the status of the ALRT bit
sakthipriya 0:7b4c00e3912f 684 if (value & (1 << 5))
sakthipriya 0:7b4c00e3912f 685 return true;
sakthipriya 0:7b4c00e3912f 686 else
sakthipriya 0:7b4c00e3912f 687 return false;
sakthipriya 2:c823d84b4cb0 688 }
sakthipriya 2:c823d84b4cb0 689
sakthipriya 2:c823d84b4cb0 690 //.............................Battery board Temp sensor........................//
sakthipriya 2:c823d84b4cb0 691 void FCTN_BATTTEMP_INIT()
sakthipriya 2:c823d84b4cb0 692 {
sakthipriya 2:c823d84b4cb0 693 ssn1=1;ssn2=1;
sakthipriya 2:c823d84b4cb0 694 //PS=0;
sakthipriya 2:c823d84b4cb0 695 //HS=0;
sakthipriya 2:c823d84b4cb0 696 spi_bt.format(8,3);
sakthipriya 2:c823d84b4cb0 697 spi_bt.frequency(1000000);
sakthipriya 2:c823d84b4cb0 698 }
sakthipriya 2:c823d84b4cb0 699
sakthipriya 2:c823d84b4cb0 700 void FCTN_BATT_TEMP_SENSOR_MAIN(float temp[2])
sakthipriya 2:c823d84b4cb0 701 {
sakthipriya 2:c823d84b4cb0 702 uint8_t MSB, LSB;
sakthipriya 2:c823d84b4cb0 703 int16_t bit_data;
sakthipriya 2:c823d84b4cb0 704 float sensitivity=0.0078125; //1 LSB = sensitivity degree celcius
sakthipriya 2:c823d84b4cb0 705 wait_ms(320);
sakthipriya 2:c823d84b4cb0 706 ssn1=0;
sakthipriya 2:c823d84b4cb0 707
sakthipriya 2:c823d84b4cb0 708 spi_bt.write(0x80);//Reading digital data from Sensor 1
sakthipriya 2:c823d84b4cb0 709 LSB = spi_bt.write(0x00);//LSB first
sakthipriya 2:c823d84b4cb0 710 wait_ms(0);
sakthipriya 2:c823d84b4cb0 711 MSB = spi_bt.write(0x00);
sakthipriya 2:c823d84b4cb0 712 wait_ms(10);
sakthipriya 2:c823d84b4cb0 713 pc_eps.printf("%d %d\n",MSB,LSB);
sakthipriya 2:c823d84b4cb0 714 bit_data= ((uint16_t)MSB<<8)|LSB;
sakthipriya 2:c823d84b4cb0 715 wait_ms(10);
sakthipriya 2:c823d84b4cb0 716 temp[0]=(float)bit_data*sensitivity;//Converting into decimal value
sakthipriya 2:c823d84b4cb0 717 ssn1=1;
sakthipriya 2:c823d84b4cb0 718 wait_ms(10);
sakthipriya 2:c823d84b4cb0 719 ssn2=0;//Reading data from sensor 2
sakthipriya 2:c823d84b4cb0 720 spi_bt.write(0x80);
sakthipriya 2:c823d84b4cb0 721 LSB = spi_bt.write(0x00);
sakthipriya 2:c823d84b4cb0 722 wait_ms(10);
sakthipriya 2:c823d84b4cb0 723 MSB = spi_bt.write(0x00);
sakthipriya 2:c823d84b4cb0 724 wait_ms(10);
sakthipriya 2:c823d84b4cb0 725 bit_data= ((int16_t)MSB<<8)|LSB;
sakthipriya 2:c823d84b4cb0 726 wait_ms(10);
sakthipriya 2:c823d84b4cb0 727 temp[1]=(float)bit_data*sensitivity;
sakthipriya 2:c823d84b4cb0 728 ssn2=1;
sakthipriya 2:c823d84b4cb0 729
sakthipriya 2:c823d84b4cb0 730 }