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Dependencies:   FreescaleIAP mbed-rtos mbed

Fork of workinQM_5thJan_azad by Team Fox

EPS.cpp@17:fc782f7548c6, 2016-05-13 (annotated)

Committer:
lakshya
Date:
Fri May 13 11:56:49 2016 +0000
Revision:
17:fc782f7548c6
Parent:
15:e09aaaccf134
Child:
19:79e69017c855
gyro/mag any one working condition; making rate zero and enabling event register value change; along with the register values; ; step 1 towards achieving sensor values even if one cups achieved

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;
lakshya 17:fc782f7548c6 137 s1=SelectLineb1=SelectLinea1;// changed to
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 }
lakshya 17:fc782f7548c6 143
lakshya 17:fc782f7548c6 144
lakshya 17:fc782f7548c6 145 //_____________________________________________________________________________________________
lakshya 17:fc782f7548c6 146
lakshya 17:fc782f7548c6 147 /// for(Iteration=0; Iteration<16; Iteration++)
lakshya 17:fc782f7548c6 148 {
lakshya 17:fc782f7548c6 149 /// printf("\n\rRaw data is for voltage %f",actual_data.voltage_actual[Iteration]);
lakshya 17:fc782f7548c6 150 }
lakshya 17:fc782f7548c6 151 //_____________________________________________________________________________________________
lakshya 17:fc782f7548c6 152
sakthipriya 3:07e15677a75c 153 for(Iteration=0; Iteration<16; Iteration++){
sakthipriya 3:07e15677a75c 154
sakthipriya 3:07e15677a75c 155 if(Iteration==14)
sakthipriya 3:07e15677a75c 156 actual_data.voltage_actual[Iteration]= (-90.7*3.3*actual_data.voltage_actual[Iteration])+190.1543;
sakthipriya 3:07e15677a75c 157 else
sakthipriya 3:07e15677a75c 158 actual_data.voltage_actual[Iteration]= actual_data.voltage_actual[Iteration]*3.3*5.63;
sakthipriya 3:07e15677a75c 159 }
lakshya 17:fc782f7548c6 160
lakshya 17:fc782f7548c6 161 //_____________________________________________________________________________________________
lakshya 17:fc782f7548c6 162
lakshya 17:fc782f7548c6 163 /// for(Iteration=0; Iteration<16; Iteration++)
lakshya 17:fc782f7548c6 164 {
lakshya 17:fc782f7548c6 165 /// printf("\n\ractual data is for voltage %f",actual_data.voltage_actual[Iteration]);
lakshya 17:fc782f7548c6 166 }
lakshya 17:fc782f7548c6 167 //_____________________________________________________________________________________________
lakshya 17:fc782f7548c6 168
lakshya 17:fc782f7548c6 169
lakshya 17:fc782f7548c6 170
lakshya 17:fc782f7548c6 171 //_____________________________________________________________________________________________
lakshya 17:fc782f7548c6 172
lakshya 17:fc782f7548c6 173 /// for(Iteration=0; Iteration<16; Iteration++)
lakshya 17:fc782f7548c6 174 {
lakshya 17:fc782f7548c6 175 /// printf("\n\rRAW data is for current %f",actual_data.current_actual[Iteration]);
lakshya 17:fc782f7548c6 176 }
lakshya 17:fc782f7548c6 177 //_____________________________________________________________________________________________
sakthipriya 3:07e15677a75c 178
sakthipriya 3:07e15677a75c 179 for(Iteration=0;Iteration<12;Iteration++){
sakthipriya 3:07e15677a75c 180 if(Iteration<8)
sakthipriya 3:07e15677a75c 181 actual_data.current_actual[Iteration]= actual_data.current_actual[Iteration]*3.3/(50*rsens);
sakthipriya 3:07e15677a75c 182 else
sakthipriya 3:07e15677a75c 183 actual_data.current_actual[Iteration]=actual_data.current_actual[Iteration]*3.3;
sakthipriya 3:07e15677a75c 184 int resistance;
sakthipriya 3:07e15677a75c 185
sakthipriya 3:07e15677a75c 186 resistance=24000*actual_data.current_actual[Iteration]/(3.3-actual_data.current_actual[Iteration]);
sakthipriya 3:07e15677a75c 187 if(actual_data.current_actual[Iteration]>1.47)
sakthipriya 3:07e15677a75c 188 {
sakthipriya 3:07e15677a75c 189 actual_data.current_actual[Iteration]=3694/log(24.032242*resistance);
sakthipriya 3:07e15677a75c 190 }
sakthipriya 3:07e15677a75c 191 else{
sakthipriya 3:07e15677a75c 192
sakthipriya 3:07e15677a75c 193 actual_data.current_actual[Iteration]=3365.4/log(7.60573*resistance);
sakthipriya 3:07e15677a75c 194 }
sakthipriya 3:07e15677a75c 195 }
lakshya 17:fc782f7548c6 196
lakshya 17:fc782f7548c6 197
lakshya 17:fc782f7548c6 198 //_____________________________________________________________________________________________
lakshya 17:fc782f7548c6 199
lakshya 17:fc782f7548c6 200 /// for(Iteration=0; Iteration<16; Iteration++)
lakshya 17:fc782f7548c6 201 {
lakshya 17:fc782f7548c6 202 /// printf("\n\ractual data is for current %f",actual_data.current_actual[Iteration]);
lakshya 17:fc782f7548c6 203 }
lakshya 17:fc782f7548c6 204 //_____________________________________________________________________________________________
lakshya 17:fc782f7548c6 205
lakshya 17:fc782f7548c6 206
sakthipriya 3:07e15677a75c 207 actual_data.BAE_temp_actual=(-90.7*3.3*actual_data.BAE_temp_actual)+190.1543;
sakthipriya 3:07e15677a75c 208
sakthipriya 3:07e15677a75c 209 actual_data.Batt_voltage_actual=Batt_voltage.read()*3.3*5.63;
sakthipriya 3:07e15677a75c 210
sakthipriya 3:07e15677a75c 211 //quantizing data
sakthipriya 3:07e15677a75c 212 for(Iteration=0; Iteration<16; Iteration++){
sakthipriya 3:07e15677a75c 213
sakthipriya 3:07e15677a75c 214 if(Iteration==14)
sakthipriya 3:07e15677a75c 215 quant_data.voltage_quant[Iteration]=quantiz(tstart,tstep,actual_data.voltage_actual[Iteration]);
sakthipriya 3:07e15677a75c 216 else
sakthipriya 3:07e15677a75c 217 quant_data.voltage_quant[Iteration]=quantiz(vstart,vstep,actual_data.voltage_actual[Iteration]);
sakthipriya 3:07e15677a75c 218
sakthipriya 3:07e15677a75c 219 }
sakthipriya 3:07e15677a75c 220 for(Iteration=0;Iteration<12;Iteration++){
sakthipriya 3:07e15677a75c 221 if(Iteration<8)
sakthipriya 3:07e15677a75c 222 quant_data.current_quant[Iteration]=quantiz(cstart,cstep,actual_data.current_actual[Iteration]);
sakthipriya 3:07e15677a75c 223 else
sakthipriya 3:07e15677a75c 224 quant_data.current_quant[Iteration]=quantiz(tstart_thermistor,tstep_thermistor,actual_data.current_actual[Iteration]);
sakthipriya 3:07e15677a75c 225 }
sakthipriya 3:07e15677a75c 226 for(Iteration=0;Iteration<2;Iteration++){
sakthipriya 3:07e15677a75c 227
sakthipriya 3:07e15677a75c 228 quant_data.Batt_temp_quant[Iteration]=quantiz(tstart,tstep,actual_data.Batt_temp_actual[Iteration]);
sakthipriya 3:07e15677a75c 229 }
sakthipriya 3:07e15677a75c 230
sakthipriya 3:07e15677a75c 231 quant_data.Batt_gauge_quant[0]=quantiz(vcell_start,vcell_step,actual_data.Batt_gauge_actual[0]);
sakthipriya 3:07e15677a75c 232 quant_data.Batt_gauge_quant[1]=quantiz(soc_start,soc_step,actual_data.Batt_gauge_actual[1]);
sakthipriya 3:07e15677a75c 233 quant_data.Batt_gauge_quant[2]=quantiz(crate_start,crate_step,actual_data.Batt_gauge_actual[2]);
sakthipriya 3:07e15677a75c 234 quant_data.Batt_gauge_alerts=actual_data.Batt_gauge_actual[3];
sakthipriya 3:07e15677a75c 235
sakthipriya 3:07e15677a75c 236 quant_data.BAE_temp_quant=quantiz(tstart,tstep,actual_data.BAE_temp_actual);
sakthipriya 3:07e15677a75c 237
sakthipriya 3:07e15677a75c 238 for(Iteration=0;Iteration<3;Iteration++){
sakthipriya 5:bb592f3185cc 239 quant_data.AngularSpeed_quant[Iteration]=actual_data.AngularSpeed_actual[Iteration];
sakthipriya 6:036d08b62785 240 printf("\n\r w value %f",quant_data.AngularSpeed_quant[Iteration]);
sakthipriya 3:07e15677a75c 241 }
sakthipriya 3:07e15677a75c 242
sakthipriya 3:07e15677a75c 243 for(Iteration=0;Iteration<3;Iteration++){
sakthipriya 3:07e15677a75c 244 quant_data.Bvalue_quant[Iteration]=actual_data.Bvalue_actual[Iteration];
sakthipriya 6:036d08b62785 245 printf("\n\r b value %f",quant_data.Bvalue_quant[Iteration]);
sakthipriya 3:07e15677a75c 246 }
sakthipriya 3:07e15677a75c 247
sakthipriya 3:07e15677a75c 248 quant_data.Batt_voltage_quant=quantiz(vstart,vstep,actual_data.Batt_voltage_actual);
sakthipriya 3:07e15677a75c 249
sakthipriya 3:07e15677a75c 250
sakthipriya 3:07e15677a75c 251 arch_data.Batt_1_temp=quant_data.Batt_temp_quant[0];
sakthipriya 3:07e15677a75c 252 arch_data.Batt_2_temp=quant_data.Batt_temp_quant[1];
sakthipriya 3:07e15677a75c 253 arch_data.EPS_PCB_temp=quant_data.voltage_quant[14];
sakthipriya 3:07e15677a75c 254 arch_data.Batt_SOC=quant_data.Batt_gauge_quant[1];
sakthipriya 3:07e15677a75c 255 arch_data.power_mode=actual_data.power_mode;
sakthipriya 5:bb592f3185cc 256 arch_data.faultPoll_status=actual_data.faultPoll_status;
sakthipriya 5:bb592f3185cc 257 arch_data.faultIr_status=actual_data.faultIr_status;
sakthipriya 3:07e15677a75c 258 arch_data.Batt_voltage=quant_data.Batt_voltage_quant;
sakthipriya 6:036d08b62785 259 printf("\n\r in hk");
sakthipriya 3:07e15677a75c 260
sakthipriya 3:07e15677a75c 261 }
sakthipriya 3:07e15677a75c 262
sakthipriya 5:bb592f3185cc 263 void FCTN_APPEND_HKDATA()
sakthipriya 5:bb592f3185cc 264 {
sakthipriya 5:bb592f3185cc 265 // quantized data
sakthipriya 5:bb592f3185cc 266 for (int i=0;i<16;i++)
sakthipriya 5:bb592f3185cc 267 BAE_data[i] = quant_data.voltage_quant[i];
sakthipriya 5:bb592f3185cc 268 for (int i=16;i<28;i++)
sakthipriya 5:bb592f3185cc 269 BAE_data[i] = quant_data.current_quant[i-16];
sakthipriya 5:bb592f3185cc 270 BAE_data[28] = quant_data.Batt_temp_quant[0];
sakthipriya 5:bb592f3185cc 271 BAE_data[29] = quant_data.Batt_temp_quant[1];
sakthipriya 5:bb592f3185cc 272 BAE_data[30] = quant_data.Batt_gauge_quant[1];
sakthipriya 5:bb592f3185cc 273 BAE_data[31] = quant_data.Batt_gauge_quant[1];
sakthipriya 5:bb592f3185cc 274 BAE_data[32] = quant_data.Batt_gauge_quant[1];
sakthipriya 5:bb592f3185cc 275 FCTN_CONVERT_FLOAT(quant_data.Batt_gauge_alerts,&BAE_data[33]);
sakthipriya 5:bb592f3185cc 276 BAE_data[37] = quant_data.BAE_temp_quant;
sakthipriya 5:bb592f3185cc 277 FCTN_CONVERT_FLOAT(quant_data.AngularSpeed_quant[0],&BAE_data[38]);
sakthipriya 6:036d08b62785 278 //printf("\n\r outside %d %d %d %d", BAE_data[38],BAE_data[39],BAE_data[40],BAE_data[41]);
sakthipriya 6:036d08b62785 279 //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 280 FCTN_CONVERT_FLOAT(quant_data.AngularSpeed_quant[1],&BAE_data[42]);
sakthipriya 6:036d08b62785 281 //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 282 // printf("\n\r outside %d %d %d %d", BAE_data[42],BAE_data[43],BAE_data[44],BAE_data[45]);
sakthipriya 5:bb592f3185cc 283 FCTN_CONVERT_FLOAT(quant_data.AngularSpeed_quant[2],&BAE_data[46]);
sakthipriya 6:036d08b62785 284 //printf("\n\r outside %d %d %d %d", BAE_data[46],BAE_data[47],BAE_data[48],BAE_data[49]);
sakthipriya 6:036d08b62785 285 //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 286 FCTN_CONVERT_FLOAT(quant_data.Bvalue_quant[0],&BAE_data[50]);
sakthipriya 5:bb592f3185cc 287 FCTN_CONVERT_FLOAT(quant_data.Bvalue_quant[1],&BAE_data[54]);
sakthipriya 5:bb592f3185cc 288 FCTN_CONVERT_FLOAT(quant_data.Bvalue_quant[2],&BAE_data[58]);
sakthipriya 5:bb592f3185cc 289 BAE_data[62] = quant_data.Batt_voltage_quant;
sakthipriya 5:bb592f3185cc 290 BAE_data[63] = (uint8_t)actual_data.power_mode;
sakthipriya 5:bb592f3185cc 291 BAE_data[64] = actual_data.faultPoll_status;
sakthipriya 5:bb592f3185cc 292 BAE_data[65] = actual_data.faultIr_status;
sakthipriya 5:bb592f3185cc 293 // archived data
sakthipriya 5:bb592f3185cc 294 BAE_data[66] = arch_data.Batt_1_temp; //verify if uint8_t is right
sakthipriya 5:bb592f3185cc 295 BAE_data[67] = arch_data.Batt_2_temp;
sakthipriya 5:bb592f3185cc 296 BAE_data[68] = arch_data.EPS_PCB_temp;
sakthipriya 5:bb592f3185cc 297 BAE_data[69] = arch_data.Batt_SOC;
sakthipriya 5:bb592f3185cc 298 BAE_data[70] = (uint8_t)arch_data.power_mode;
sakthipriya 5:bb592f3185cc 299 BAE_data[71] = arch_data.faultPoll_status;
sakthipriya 5:bb592f3185cc 300 BAE_data[72] = arch_data.faultIr_status;
sakthipriya 5:bb592f3185cc 301 BAE_data[73] = arch_data.Batt_voltage;
sakthipriya 6:036d08b62785 302 for(int i=0; i<73;i++)
sakthipriya 6:036d08b62785 303 BAE_chardata[i] = (char)BAE_data[i];
sakthipriya 6:036d08b62785 304 BAE_chardata[73] = '\0';
sakthipriya 7:a46a1dee4497 305 printf("\n\r bae ats data %c %c %c", BAE_chardata[38],BAE_chardata[39],BAE_chardata[40]);
sakthipriya 6:036d08b62785 306 printf("\n\r BAE data is %s", BAE_chardata);
sakthipriya 5:bb592f3185cc 307
sakthipriya 5:bb592f3185cc 308 }
sakthipriya 5:bb592f3185cc 309
sakthipriya 5:bb592f3185cc 310 uint8_t quantiz(float start,float step,float x)
sakthipriya 0:7b4c00e3912f 311 {
sakthipriya 0:7b4c00e3912f 312 int y=(x-start)/step;
sakthipriya 0:7b4c00e3912f 313 if(y<=0)y=0;
sakthipriya 0:7b4c00e3912f 314 if(y>=255)y=255;
sakthipriya 0:7b4c00e3912f 315 return y;
sakthipriya 0:7b4c00e3912f 316 }
sakthipriya 0:7b4c00e3912f 317
sakthipriya 3:07e15677a75c 318 bool firstCount=true; // goes to EPS init
sakthipriya 3:07e15677a75c 319
sakthipriya 3:07e15677a75c 320
sakthipriya 3:07e15677a75c 321 void saveMin(char x,char y){
sakthipriya 3:07e15677a75c 322 if(y<x){
sakthipriya 3:07e15677a75c 323 x=y;
sakthipriya 3:07e15677a75c 324 }
sakthipriya 3:07e15677a75c 325
sakthipriya 3:07e15677a75c 326 }
sakthipriya 3:07e15677a75c 327 void saveMax(char x,char y){
sakthipriya 3:07e15677a75c 328 if (y>x)
sakthipriya 3:07e15677a75c 329 {
sakthipriya 3:07e15677a75c 330 x=y;
sakthipriya 3:07e15677a75c 331 }
sakthipriya 0:7b4c00e3912f 332 }
sakthipriya 0:7b4c00e3912f 333
sakthipriya 3:07e15677a75c 334
sakthipriya 3:07e15677a75c 335 void minMaxHkData(){
sakthipriya 3:07e15677a75c 336 if(firstCount==true){
sakthipriya 3:07e15677a75c 337 for (int i = 0; i < 16; ++i){
sakthipriya 3:07e15677a75c 338 bae_HK_minmax.voltage_min[i] = quant_data.voltage_quant[i];
sakthipriya 3:07e15677a75c 339 bae_HK_minmax.voltage_max[i] = quant_data.voltage_quant[i];
sakthipriya 3:07e15677a75c 340 }
sakthipriya 3:07e15677a75c 341 for (int i = 0; i < 12; ++i){
sakthipriya 3:07e15677a75c 342 bae_HK_minmax.current_min[i] = quant_data.current_quant[i];
sakthipriya 3:07e15677a75c 343 bae_HK_minmax.current_max[i] = quant_data.current_quant[i];
sakthipriya 3:07e15677a75c 344 }
sakthipriya 3:07e15677a75c 345
sakthipriya 3:07e15677a75c 346 for (int i = 0; i < 2; ++i){
sakthipriya 3:07e15677a75c 347 bae_HK_minmax.Batt_temp_min[i] = quant_data.Batt_temp_quant[i];
sakthipriya 3:07e15677a75c 348 bae_HK_minmax.Batt_temp_max[i] = quant_data.Batt_temp_quant[i];
sakthipriya 3:07e15677a75c 349 }
sakthipriya 3:07e15677a75c 350 for (int i = 0; i < 3; ++i){
sakthipriya 3:07e15677a75c 351 bae_HK_minmax.Batt_gauge_min[i] = quant_data.Batt_gauge_quant[i];
sakthipriya 3:07e15677a75c 352 bae_HK_minmax.Batt_gauge_max[i] = quant_data.Batt_gauge_quant[i];
sakthipriya 3:07e15677a75c 353 }
sakthipriya 3:07e15677a75c 354 for (int i = 0; i < 3; ++i){
sakthipriya 3:07e15677a75c 355 bae_HK_minmax.AngularSpeed_min[i] = quant_data.AngularSpeed_quant[i];
sakthipriya 3:07e15677a75c 356 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 bae_HK_minmax.Bvalue_min[i] = quant_data.Bvalue_quant[i];
sakthipriya 3:07e15677a75c 360 bae_HK_minmax.Bvalue_max[i] = quant_data.Bvalue_quant[i];
sakthipriya 3:07e15677a75c 361 }
sakthipriya 3:07e15677a75c 362 bae_HK_minmax.BAE_temp_min=quant_data.BAE_temp_quant;
sakthipriya 3:07e15677a75c 363 bae_HK_minmax.BAE_temp_max=quant_data.BAE_temp_quant;
sakthipriya 3:07e15677a75c 364 bae_HK_minmax.Batt_voltage_min=quant_data.Batt_voltage_quant;
sakthipriya 3:07e15677a75c 365 bae_HK_minmax.Batt_voltage_max=quant_data.Batt_voltage_quant;
sakthipriya 3:07e15677a75c 366
sakthipriya 3:07e15677a75c 367 }
sakthipriya 3:07e15677a75c 368 else {
sakthipriya 3:07e15677a75c 369 for (int i = 0; i < 16; ++i)
sakthipriya 3:07e15677a75c 370 {
sakthipriya 3:07e15677a75c 371 saveMin(bae_HK_minmax.voltage_min[i],quant_data.voltage_quant[i]);
sakthipriya 3:07e15677a75c 372 saveMax(bae_HK_minmax.voltage_max[i],quant_data.voltage_quant[i]);
sakthipriya 3:07e15677a75c 373 }
sakthipriya 3:07e15677a75c 374 for (int i = 0; i < 12; ++i)
sakthipriya 3:07e15677a75c 375 {
sakthipriya 3:07e15677a75c 376 saveMin(bae_HK_minmax.current_min[i],quant_data.current_quant[i]);
sakthipriya 3:07e15677a75c 377 saveMax(bae_HK_minmax.current_max[i],quant_data.current_quant[i]);
sakthipriya 3:07e15677a75c 378 }
sakthipriya 3:07e15677a75c 379
sakthipriya 3:07e15677a75c 380 for (int i = 0; i < 2; ++i)
sakthipriya 3:07e15677a75c 381 {
sakthipriya 3:07e15677a75c 382 saveMin(bae_HK_minmax.Batt_temp_min[i],quant_data.Batt_temp_quant[i]);
sakthipriya 3:07e15677a75c 383 saveMax(bae_HK_minmax.Batt_temp_max[i],quant_data.Batt_temp_quant[i]);
sakthipriya 3:07e15677a75c 384 }
sakthipriya 3:07e15677a75c 385 for (int i = 0; i < 3; ++i)
sakthipriya 3:07e15677a75c 386 {
sakthipriya 3:07e15677a75c 387 saveMin(bae_HK_minmax.Batt_gauge_min[i], quant_data.Batt_gauge_quant[i]);
sakthipriya 3:07e15677a75c 388 saveMax(bae_HK_minmax.Batt_gauge_max[i], quant_data.Batt_gauge_quant[i]);
sakthipriya 3:07e15677a75c 389 }
sakthipriya 3:07e15677a75c 390 for (int i = 0; i < 3; ++i)
sakthipriya 3:07e15677a75c 391 {
sakthipriya 3:07e15677a75c 392 saveMin(bae_HK_minmax.AngularSpeed_min[i], quant_data.AngularSpeed_quant[i]);
sakthipriya 3:07e15677a75c 393 saveMax(bae_HK_minmax.AngularSpeed_max[i], quant_data.AngularSpeed_quant[i]);
sakthipriya 3:07e15677a75c 394 }
sakthipriya 3:07e15677a75c 395 for (int i = 0; i < 3; ++i)
sakthipriya 3:07e15677a75c 396 {
sakthipriya 3:07e15677a75c 397 saveMin(bae_HK_minmax.Bvalue_min[i], quant_data.Bvalue_quant[i]);
sakthipriya 3:07e15677a75c 398 saveMax(bae_HK_minmax.Bvalue_max[i], quant_data.Bvalue_quant[i]);
sakthipriya 3:07e15677a75c 399 }
sakthipriya 3:07e15677a75c 400 saveMin(bae_HK_minmax.BAE_temp_min,quant_data.BAE_temp_quant);
sakthipriya 3:07e15677a75c 401 saveMax(bae_HK_minmax.BAE_temp_max,quant_data.BAE_temp_quant);
sakthipriya 3:07e15677a75c 402 saveMin(bae_HK_minmax.Batt_voltage_min,quant_data.Batt_voltage_quant);
sakthipriya 3:07e15677a75c 403 saveMin(bae_HK_minmax.Batt_voltage_max,quant_data.Batt_voltage_quant);
sakthipriya 3:07e15677a75c 404
sakthipriya 3:07e15677a75c 405
sakthipriya 3:07e15677a75c 406 }
sakthipriya 3:07e15677a75c 407 firstCount=false;
sakthipriya 3:07e15677a75c 408 }
sakthipriya 3:07e15677a75c 409
sakthipriya 3:07e15677a75c 410
sakthipriya 0:7b4c00e3912f 411 //............................................BATTERY GAUGE......................................//
sakthipriya 0:7b4c00e3912f 412 void FCTN_BATTERYGAUGE_INIT()
sakthipriya 0:7b4c00e3912f 413 {
sakthipriya 0:7b4c00e3912f 414 disable_sleep();
sakthipriya 0:7b4c00e3912f 415 disable_hibernate();
sakthipriya 0:7b4c00e3912f 416 socChangeAlertEnabled(true); //enabling alert on soc changing by 1%
sakthipriya 0:7b4c00e3912f 417 emptyAlertThreshold(32);//setting empty alert threshold to 32% soc
sakthipriya 0:7b4c00e3912f 418 vAlertMinMaxThreshold();//set min, max value of Valrt register
sakthipriya 0:7b4c00e3912f 419 vResetThresholdSet();//set threshold voltage for reset
sakthipriya 0:7b4c00e3912f 420 vResetAlertEnabled(true);//enable alert on reset for V < Vreset
sakthipriya 0:7b4c00e3912f 421 }
sakthipriya 0:7b4c00e3912f 422
sakthipriya 0:7b4c00e3912f 423 void FCTN_BATTERYGAUGE_MAIN(float Battery_parameters[4])
sakthipriya 0:7b4c00e3912f 424 {
sakthipriya 1:446a959e36ce 425 printf("\n\r battery gauge \n");
sakthipriya 0:7b4c00e3912f 426
sakthipriya 3:07e15677a75c 427 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 428 tempCompensation(temp);
sakthipriya 0:7b4c00e3912f 429
sakthipriya 0:7b4c00e3912f 430
sakthipriya 0:7b4c00e3912f 431 Battery_parameters[0]=vcell();
sakthipriya 0:7b4c00e3912f 432 Battery_parameters[1]=soc();
sakthipriya 0:7b4c00e3912f 433 Battery_parameters[2]=crate();
sakthipriya 0:7b4c00e3912f 434
sakthipriya 0:7b4c00e3912f 435 printf("\nVcell=%f",vcell()); //remove this for final code
sakthipriya 0:7b4c00e3912f 436 printf("\nSOC=%f",soc()); //remove this for final code
sakthipriya 0:7b4c00e3912f 437 printf("\nC_rate=%f",crate()); //remove this for final code
sakthipriya 0:7b4c00e3912f 438
sakthipriya 0:7b4c00e3912f 439
sakthipriya 0:7b4c00e3912f 440 if (alerting()== true) //alert is on
sakthipriya 0:7b4c00e3912f 441 {
sakthipriya 0:7b4c00e3912f 442 Battery_parameters[3]=alertFlags();
sakthipriya 0:7b4c00e3912f 443 clearAlert();//clear alert
sakthipriya 0:7b4c00e3912f 444 clearAlertFlags();//clear all alert flags
sakthipriya 0:7b4c00e3912f 445 }
sakthipriya 0:7b4c00e3912f 446
sakthipriya 0:7b4c00e3912f 447 }
sakthipriya 0:7b4c00e3912f 448
sakthipriya 0:7b4c00e3912f 449 unsigned short read(char reg)
sakthipriya 0:7b4c00e3912f 450 {
sakthipriya 0:7b4c00e3912f 451
sakthipriya 0:7b4c00e3912f 452 //Create a temporary buffer
sakthipriya 0:7b4c00e3912f 453 char buff[2];
sakthipriya 0:7b4c00e3912f 454
sakthipriya 0:7b4c00e3912f 455 //Select the register
sakthipriya 0:7b4c00e3912f 456 m_I2C.write(m_ADDR, &reg, 1, true);
sakthipriya 0:7b4c00e3912f 457
sakthipriya 0:7b4c00e3912f 458 //Read the 16-bit register
sakthipriya 0:7b4c00e3912f 459 m_I2C.read(m_ADDR, buff, 2);
sakthipriya 0:7b4c00e3912f 460
sakthipriya 0:7b4c00e3912f 461 //Return the combined 16-bit value
sakthipriya 0:7b4c00e3912f 462 return (buff[0] << 8) | buff[1];
sakthipriya 0:7b4c00e3912f 463 }
sakthipriya 0:7b4c00e3912f 464
sakthipriya 3:07e15677a75c 465
sakthipriya 1:446a959e36ce 466
sakthipriya 3:07e15677a75c 467
sakthipriya 0:7b4c00e3912f 468
sakthipriya 0:7b4c00e3912f 469 void write(char reg, unsigned short data)
sakthipriya 0:7b4c00e3912f 470 {
sakthipriya 0:7b4c00e3912f 471 //Create a temporary buffer
sakthipriya 0:7b4c00e3912f 472 char buff[3];
sakthipriya 0:7b4c00e3912f 473
sakthipriya 0:7b4c00e3912f 474 //Load the register address and 16-bit data
sakthipriya 0:7b4c00e3912f 475 buff[0] = reg;
sakthipriya 0:7b4c00e3912f 476 buff[1] = data >> 8;
sakthipriya 0:7b4c00e3912f 477 buff[2] = data;
sakthipriya 0:7b4c00e3912f 478
sakthipriya 0:7b4c00e3912f 479 //Write the data
sakthipriya 0:7b4c00e3912f 480 m_I2C.write(m_ADDR, buff, 3);
sakthipriya 0:7b4c00e3912f 481 }
sakthipriya 0:7b4c00e3912f 482
sakthipriya 0:7b4c00e3912f 483
sakthipriya 0:7b4c00e3912f 484
sakthipriya 0:7b4c00e3912f 485 // Command the MAX17049 to perform a power-on reset
sakthipriya 0:7b4c00e3912f 486 void reset()
sakthipriya 0:7b4c00e3912f 487 {
sakthipriya 0:7b4c00e3912f 488 //Write the POR command
sakthipriya 0:7b4c00e3912f 489 write(REG_CMD, 0x5400);
sakthipriya 0:7b4c00e3912f 490 }
sakthipriya 0:7b4c00e3912f 491
sakthipriya 0:7b4c00e3912f 492 // Command the MAX17049 to perform a QuickStart
sakthipriya 0:7b4c00e3912f 493 void quickStart()
sakthipriya 0:7b4c00e3912f 494 {
sakthipriya 0:7b4c00e3912f 495 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 496 unsigned short value = read(REG_MODE);
lakshya 15:e09aaaccf134 497
sakthipriya 0:7b4c00e3912f 498 //Set the QuickStart bit
sakthipriya 0:7b4c00e3912f 499 value |= (1 << 14);
sakthipriya 0:7b4c00e3912f 500
sakthipriya 0:7b4c00e3912f 501 //Write the value back out
sakthipriya 0:7b4c00e3912f 502 write(REG_MODE, value);
sakthipriya 0:7b4c00e3912f 503 }
sakthipriya 0:7b4c00e3912f 504
sakthipriya 0:7b4c00e3912f 505
sakthipriya 0:7b4c00e3912f 506 //disable sleep
sakthipriya 0:7b4c00e3912f 507 void disable_sleep()
sakthipriya 0:7b4c00e3912f 508 {
sakthipriya 0:7b4c00e3912f 509 unsigned short value = read(REG_MODE);
sakthipriya 0:7b4c00e3912f 510 value &= ~(1 << 13);
sakthipriya 0:7b4c00e3912f 511 write(REG_MODE, value);
sakthipriya 0:7b4c00e3912f 512 }
sakthipriya 0:7b4c00e3912f 513
sakthipriya 0:7b4c00e3912f 514 //disable the hibernate of the MAX17049
sakthipriya 0:7b4c00e3912f 515 void disable_hibernate()
sakthipriya 0:7b4c00e3912f 516 {
sakthipriya 0:7b4c00e3912f 517 write(REG_HIBRT, 0x0000);
sakthipriya 0:7b4c00e3912f 518 }
sakthipriya 0:7b4c00e3912f 519
sakthipriya 0:7b4c00e3912f 520
sakthipriya 0:7b4c00e3912f 521 // Enable or disable the SOC 1% change alert on the MAX17049
sakthipriya 0:7b4c00e3912f 522 void socChangeAlertEnabled(bool enabled)
sakthipriya 0:7b4c00e3912f 523 {
sakthipriya 0:7b4c00e3912f 524 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 525 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 526
sakthipriya 0:7b4c00e3912f 527 //Set or clear the ALSC bit
sakthipriya 0:7b4c00e3912f 528 if (enabled)
sakthipriya 0:7b4c00e3912f 529 value |= (1 << 6);
sakthipriya 0:7b4c00e3912f 530 else
sakthipriya 0:7b4c00e3912f 531 value &= ~(1 << 6);
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 void compensation(char rcomp)
sakthipriya 0:7b4c00e3912f 539 {
sakthipriya 0:7b4c00e3912f 540 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 541 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 542
sakthipriya 0:7b4c00e3912f 543 //Update the register value
sakthipriya 0:7b4c00e3912f 544 value &= 0x00FF;
sakthipriya 0:7b4c00e3912f 545 value |= rcomp << 8;
sakthipriya 0:7b4c00e3912f 546
sakthipriya 0:7b4c00e3912f 547 //Write the value back out
sakthipriya 0:7b4c00e3912f 548 write(REG_CONFIG, value);
sakthipriya 0:7b4c00e3912f 549 }
sakthipriya 0:7b4c00e3912f 550
sakthipriya 0:7b4c00e3912f 551
sakthipriya 0:7b4c00e3912f 552 void tempCompensation(float temp)
sakthipriya 0:7b4c00e3912f 553 {
sakthipriya 0:7b4c00e3912f 554 //Calculate the new RCOMP value
sakthipriya 0:7b4c00e3912f 555 char rcomp;
sakthipriya 0:7b4c00e3912f 556 if (temp > 20.0) {
sakthipriya 0:7b4c00e3912f 557 rcomp = RCOMP0 + (temp - 20.0) * -0.5;
sakthipriya 0:7b4c00e3912f 558 } else {
sakthipriya 0:7b4c00e3912f 559 rcomp = RCOMP0 + (temp - 20.0) * -5.0;
sakthipriya 0:7b4c00e3912f 560 }
sakthipriya 0:7b4c00e3912f 561
sakthipriya 0:7b4c00e3912f 562 //Update the RCOMP value
sakthipriya 0:7b4c00e3912f 563 compensation(rcomp);
sakthipriya 0:7b4c00e3912f 564 }
sakthipriya 0:7b4c00e3912f 565
sakthipriya 0:7b4c00e3912f 566 // Command the MAX17049 to de-assert the ALRT pin
sakthipriya 0:7b4c00e3912f 567 void clearAlert()
sakthipriya 0:7b4c00e3912f 568 {
sakthipriya 0:7b4c00e3912f 569 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 570 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 571
sakthipriya 0:7b4c00e3912f 572 //Clear the ALRT bit
sakthipriya 0:7b4c00e3912f 573 value &= ~(1 << 5);
sakthipriya 0:7b4c00e3912f 574
sakthipriya 0:7b4c00e3912f 575 //Write the value back out
sakthipriya 0:7b4c00e3912f 576 write(REG_CONFIG, value);
sakthipriya 0:7b4c00e3912f 577 }
sakthipriya 0:7b4c00e3912f 578
sakthipriya 0:7b4c00e3912f 579
sakthipriya 0:7b4c00e3912f 580 //Set the SOC empty alert threshold of the MAX17049
sakthipriya 0:7b4c00e3912f 581 void emptyAlertThreshold(char threshold)
sakthipriya 0:7b4c00e3912f 582 {
sakthipriya 0:7b4c00e3912f 583 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 584 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 585
sakthipriya 0:7b4c00e3912f 586 //Update the register value
sakthipriya 0:7b4c00e3912f 587 value &= 0xFFE0;
sakthipriya 0:7b4c00e3912f 588 value |= 32 - threshold;
sakthipriya 0:7b4c00e3912f 589
sakthipriya 0:7b4c00e3912f 590 //Write the 16-bit register
sakthipriya 0:7b4c00e3912f 591 write(REG_CONFIG, value);
sakthipriya 0:7b4c00e3912f 592 }
sakthipriya 0:7b4c00e3912f 593
sakthipriya 0:7b4c00e3912f 594 // Set the low and high voltage alert threshold of the MAX17049
sakthipriya 0:7b4c00e3912f 595 void vAlertMinMaxThreshold()
sakthipriya 0:7b4c00e3912f 596 {
sakthipriya 0:7b4c00e3912f 597 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 598 unsigned short value = read(REG_VALRT);
sakthipriya 0:7b4c00e3912f 599
sakthipriya 0:7b4c00e3912f 600 //Mask off the old value
sakthipriya 0:7b4c00e3912f 601
sakthipriya 0:7b4c00e3912f 602 value = 0x96D2;
sakthipriya 0:7b4c00e3912f 603
sakthipriya 0:7b4c00e3912f 604 //Write the 16-bit register
sakthipriya 0:7b4c00e3912f 605 write(REG_VALRT, value);
sakthipriya 0:7b4c00e3912f 606 }
sakthipriya 0:7b4c00e3912f 607
sakthipriya 0:7b4c00e3912f 608
sakthipriya 0:7b4c00e3912f 609 // Set the reset voltage threshold of the MAX17049
sakthipriya 0:7b4c00e3912f 610 void vResetThresholdSet()
sakthipriya 0:7b4c00e3912f 611 {
sakthipriya 0:7b4c00e3912f 612 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 613 unsigned short value = read(REG_VRESET_ID);
sakthipriya 0:7b4c00e3912f 614
sakthipriya 0:7b4c00e3912f 615 //Mask off the old //value
sakthipriya 0:7b4c00e3912f 616 value &= 0x00FF;//Dis=0
sakthipriya 0:7b4c00e3912f 617
sakthipriya 0:7b4c00e3912f 618 value |= 0x9400;//corresponding to 2.5 V
sakthipriya 0:7b4c00e3912f 619
sakthipriya 0:7b4c00e3912f 620
sakthipriya 0:7b4c00e3912f 621 //Write the 16-bit register
sakthipriya 0:7b4c00e3912f 622 write(REG_VRESET_ID, value);
sakthipriya 0:7b4c00e3912f 623 }
sakthipriya 0:7b4c00e3912f 624
sakthipriya 0:7b4c00e3912f 625
sakthipriya 0:7b4c00e3912f 626 // Enable or disable the voltage reset alert on the MAX17049
sakthipriya 0:7b4c00e3912f 627 void vResetAlertEnabled(bool enabled)
sakthipriya 0:7b4c00e3912f 628 {
sakthipriya 0:7b4c00e3912f 629 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 630 unsigned short value = read(REG_STATUS);
sakthipriya 0:7b4c00e3912f 631
sakthipriya 0:7b4c00e3912f 632 //Set or clear the EnVR bit
sakthipriya 0:7b4c00e3912f 633 if (enabled)
sakthipriya 0:7b4c00e3912f 634 value |= (1 << 14);
sakthipriya 0:7b4c00e3912f 635 else
sakthipriya 0:7b4c00e3912f 636 value &= ~(1 << 14);
sakthipriya 0:7b4c00e3912f 637
sakthipriya 0:7b4c00e3912f 638 //Write the value back out
sakthipriya 0:7b4c00e3912f 639 write(REG_STATUS, value);
sakthipriya 0:7b4c00e3912f 640 }
sakthipriya 0:7b4c00e3912f 641
sakthipriya 0:7b4c00e3912f 642 //Get the current alert flags on the MAX17049
sakthipriya 0:7b4c00e3912f 643 //refer datasheet-status registers section to decode it.
sakthipriya 0:7b4c00e3912f 644 char alertFlags()
sakthipriya 0:7b4c00e3912f 645 {
sakthipriya 0:7b4c00e3912f 646 //Read the 16-bit register value
sakthipriya 0:7b4c00e3912f 647 unsigned short value = read(REG_STATUS);
sakthipriya 0:7b4c00e3912f 648
sakthipriya 0:7b4c00e3912f 649 //Return only the flag bits
sakthipriya 0:7b4c00e3912f 650 return (value >> 8) & 0x3F;
sakthipriya 0:7b4c00e3912f 651 }
sakthipriya 0:7b4c00e3912f 652
sakthipriya 0:7b4c00e3912f 653 // Clear all the alert flags on the MAX17049
sakthipriya 0:7b4c00e3912f 654 void clearAlertFlags()
sakthipriya 0:7b4c00e3912f 655 {
sakthipriya 0:7b4c00e3912f 656 //Read the current 16-bit register value
sakthipriya 0:7b4c00e3912f 657 unsigned short value = read(REG_STATUS);
sakthipriya 0:7b4c00e3912f 658
sakthipriya 0:7b4c00e3912f 659 //Clear the specified flag bits
sakthipriya 0:7b4c00e3912f 660 value &= ~( 0x3F<< 8);
sakthipriya 0:7b4c00e3912f 661
sakthipriya 0:7b4c00e3912f 662 //Write the value back out
sakthipriya 0:7b4c00e3912f 663 write(REG_STATUS, value);
sakthipriya 0:7b4c00e3912f 664 }
sakthipriya 0:7b4c00e3912f 665
sakthipriya 0:7b4c00e3912f 666 // Get the current cell voltage measurement of the MAX17049
sakthipriya 0:7b4c00e3912f 667 float vcell()
sakthipriya 0:7b4c00e3912f 668 {
sakthipriya 1:446a959e36ce 669
sakthipriya 0:7b4c00e3912f 670 //Read the 16-bit raw Vcell value
sakthipriya 0:7b4c00e3912f 671 unsigned short value = read(REG_VCELL);
sakthipriya 0:7b4c00e3912f 672
sakthipriya 0:7b4c00e3912f 673 //Return Vcell in volts
sakthipriya 0:7b4c00e3912f 674 return value * 0.000078125*2;
sakthipriya 0:7b4c00e3912f 675 }
sakthipriya 0:7b4c00e3912f 676
sakthipriya 0:7b4c00e3912f 677 // Get the current state of charge measurement of the MAX17049 as a float
sakthipriya 0:7b4c00e3912f 678 float soc()
sakthipriya 0:7b4c00e3912f 679 {
sakthipriya 3:07e15677a75c 680
sakthipriya 3:07e15677a75c 681 //Create a temporary buffer
sakthipriya 0:7b4c00e3912f 682 char buff[2];
sakthipriya 3:07e15677a75c 683 int ack = 1;
sakthipriya 3:07e15677a75c 684 //Select the register
sakthipriya 3:07e15677a75c 685 char reg = REG_SOC; // cannot pass the hash defined values directly
sakthipriya 3:07e15677a75c 686 m_I2C.write(m_ADDR, &reg, 1, true);
sakthipriya 3:07e15677a75c 687
sakthipriya 3:07e15677a75c 688
sakthipriya 3:07e15677a75c 689 //Read the 16-bit register
sakthipriya 3:07e15677a75c 690
sakthipriya 3:07e15677a75c 691 ack = m_I2C.read(m_ADDR, buff, 2);
sakthipriya 3:07e15677a75c 692
sakthipriya 3:07e15677a75c 693 printf("\n\r acknow %d", ack);
sakthipriya 0:7b4c00e3912f 694
sakthipriya 0:7b4c00e3912f 695 //Return SOC in percent
sakthipriya 2:c823d84b4cb0 696 if(ack == 0)
sakthipriya 3:07e15677a75c 697 return ((buff[0] << 8) | buff[1]) * 0.00390625;
sakthipriya 2:c823d84b4cb0 698 else
sakthipriya 2:c823d84b4cb0 699 return 200;
sakthipriya 0:7b4c00e3912f 700 }
sakthipriya 0:7b4c00e3912f 701
sakthipriya 0:7b4c00e3912f 702
sakthipriya 0:7b4c00e3912f 703
sakthipriya 0:7b4c00e3912f 704 // Get the current C rate measurement of the MAX17049
sakthipriya 0:7b4c00e3912f 705 float crate()
sakthipriya 0:7b4c00e3912f 706 {
sakthipriya 0:7b4c00e3912f 707 //Read the 16-bit raw C/Rate value
sakthipriya 0:7b4c00e3912f 708 short value = read(REG_CRATE);
sakthipriya 0:7b4c00e3912f 709
sakthipriya 0:7b4c00e3912f 710 //Return C/Rate in %/hr
sakthipriya 0:7b4c00e3912f 711 return value * 0.208;
sakthipriya 0:7b4c00e3912f 712 }
sakthipriya 0:7b4c00e3912f 713
sakthipriya 0:7b4c00e3912f 714 // Determine whether or not the MAX17049 is asserting the ALRT pin
sakthipriya 0:7b4c00e3912f 715 bool alerting()
sakthipriya 0:7b4c00e3912f 716 {
sakthipriya 0:7b4c00e3912f 717 //Read the 16-bit register value
sakthipriya 0:7b4c00e3912f 718 unsigned short value = read(REG_CONFIG);
sakthipriya 0:7b4c00e3912f 719
sakthipriya 0:7b4c00e3912f 720 //Return the status of the ALRT bit
sakthipriya 0:7b4c00e3912f 721 if (value & (1 << 5))
sakthipriya 0:7b4c00e3912f 722 return true;
sakthipriya 0:7b4c00e3912f 723 else
sakthipriya 0:7b4c00e3912f 724 return false;
sakthipriya 2:c823d84b4cb0 725 }
sakthipriya 2:c823d84b4cb0 726
sakthipriya 2:c823d84b4cb0 727 //.............................Battery board Temp sensor........................//
sakthipriya 2:c823d84b4cb0 728 void FCTN_BATTTEMP_INIT()
sakthipriya 2:c823d84b4cb0 729 {
sakthipriya 2:c823d84b4cb0 730 ssn1=1;ssn2=1;
sakthipriya 2:c823d84b4cb0 731 //PS=0;
sakthipriya 2:c823d84b4cb0 732 //HS=0;
sakthipriya 2:c823d84b4cb0 733 spi_bt.format(8,3);
sakthipriya 2:c823d84b4cb0 734 spi_bt.frequency(1000000);
sakthipriya 2:c823d84b4cb0 735 }
sakthipriya 2:c823d84b4cb0 736
sakthipriya 2:c823d84b4cb0 737 void FCTN_BATT_TEMP_SENSOR_MAIN(float temp[2])
sakthipriya 2:c823d84b4cb0 738 {
sakthipriya 2:c823d84b4cb0 739 uint8_t MSB, LSB;
sakthipriya 2:c823d84b4cb0 740 int16_t bit_data;
sakthipriya 2:c823d84b4cb0 741 float sensitivity=0.0078125; //1 LSB = sensitivity degree celcius
sakthipriya 2:c823d84b4cb0 742 wait_ms(320);
sakthipriya 2:c823d84b4cb0 743 ssn1=0;
sakthipriya 2:c823d84b4cb0 744
sakthipriya 2:c823d84b4cb0 745 spi_bt.write(0x80);//Reading digital data from Sensor 1
sakthipriya 2:c823d84b4cb0 746 LSB = spi_bt.write(0x00);//LSB first
sakthipriya 2:c823d84b4cb0 747 wait_ms(0);
sakthipriya 2:c823d84b4cb0 748 MSB = spi_bt.write(0x00);
sakthipriya 2:c823d84b4cb0 749 wait_ms(10);
sakthipriya 2:c823d84b4cb0 750 pc_eps.printf("%d %d\n",MSB,LSB);
sakthipriya 2:c823d84b4cb0 751 bit_data= ((uint16_t)MSB<<8)|LSB;
sakthipriya 2:c823d84b4cb0 752 wait_ms(10);
sakthipriya 2:c823d84b4cb0 753 temp[0]=(float)bit_data*sensitivity;//Converting into decimal value
sakthipriya 2:c823d84b4cb0 754 ssn1=1;
sakthipriya 2:c823d84b4cb0 755 wait_ms(10);
sakthipriya 2:c823d84b4cb0 756 ssn2=0;//Reading data from sensor 2
sakthipriya 2:c823d84b4cb0 757 spi_bt.write(0x80);
sakthipriya 2:c823d84b4cb0 758 LSB = spi_bt.write(0x00);
sakthipriya 2:c823d84b4cb0 759 wait_ms(10);
sakthipriya 2:c823d84b4cb0 760 MSB = spi_bt.write(0x00);
sakthipriya 2:c823d84b4cb0 761 wait_ms(10);
sakthipriya 2:c823d84b4cb0 762 bit_data= ((int16_t)MSB<<8)|LSB;
sakthipriya 2:c823d84b4cb0 763 wait_ms(10);
sakthipriya 2:c823d84b4cb0 764 temp[1]=(float)bit_data*sensitivity;
sakthipriya 2:c823d84b4cb0 765 ssn2=1;
sakthipriya 2:c823d84b4cb0 766
sakthipriya 2:c823d84b4cb0 767 }