Team Fox / Mbed 2 deprecated BAE_ACS_FULLYDONE_153

FINAL ACS TO BE USED FOR TESTING. COMMISSIONING, ACS MAIN, DATA ACQ ALL DONE.

Dependencies:   FreescaleIAP mbed-rtos mbed

Fork of ACS_FULL_Flowchart_BAE by Team Fox

EPS.cpp@6:036d08b62785, 2016-01-22 (annotated)

Committer:
sakthipriya
Date:
Fri Jan 22 19:51:50 2016 +0000
Revision:
6:036d08b62785
Parent:
5:bb592f3185cc
Child:
7:a46a1dee4497
i2c prob again

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