Siddharth Gupta / Mbed 2 deprecated BMS_BMUCore_Max_DummyData

Has base BMU code but sends dummy temperature and voltage readings to test CAN

Dependencies:   CUER_CAN DS1820 LTC2943 LTC6804 mbed

Fork of BMS_BMUCore_Max by CUER

CANParserBMU.cpp@15:e901aff1f5b3, 2017-07-02 (annotated)

Committer:
DasSidG
Date:
Sun Jul 02 11:25:37 2017 +0000
Revision:
15:e901aff1f5b3
Parent:
14:e0e88a009f4c 
Added temperature probe initialization

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lcockerton62 0:0a5f554d2a16 1 // Here are the functions to generate the CAN messages
lcockerton62 0:0a5f554d2a16 2 #include "CANParserBMU.h"
lcockerton62 0:0a5f554d2a16 3 #include "mbed.h"
maxv008 13:7b42af989cd1 4 #include "Data_Types_BMU.h"
lcockerton62 0:0a5f554d2a16 5
lcockerton62 1:51477fe4851b 6
lcockerton62 0:0a5f554d2a16 7 using namespace CAN_IDs;
lcockerton62 0:0a5f554d2a16 8
maxv008 13:7b42af989cd1 9 /**
maxv008 13:7b42af989cd1 10 * This function is rewritten to give readings for individual probes rather than
maxv008 13:7b42af989cd1 11 * for specific CMU. As a consequence, 0x800 onwards is being used for these probes,
maxv008 14:e0e88a009f4c 12 * as everything above about 0x700 is unused by the Tritium standard. The ID value
maxv008 14:e0e88a009f4c 13 * for the probe is based on the ROM field of DS1820, entries 1-6 being the unique
maxv008 14:e0e88a009f4c 14 * serial value.
maxv008 13:7b42af989cd1 15 */
maxv008 14:e0e88a009f4c 16 CANMessage createTemperatureTelemetry(uint8_t offset, char ProbeROM[8], float Temperature)
lcockerton62 0:0a5f554d2a16 17 {
lcockerton62 0:0a5f554d2a16 18 CANMessage msg;
lcockerton62 0:0a5f554d2a16 19 msg.len = 8;
maxv008 13:7b42af989cd1 20 msg.id = TEMPERATURE_BASE_ID + offset; // for temp it is 0x800 onwards
lcockerton62 0:0a5f554d2a16 21 CAN_Data data;
lcockerton62 0:0a5f554d2a16 22
maxv008 14:e0e88a009f4c 23 //data.setLower_uLong(ProbeID);
maxv008 14:e0e88a009f4c 24 //data.setUpperFloat(Temperature);
lcockerton62 0:0a5f554d2a16 25
maxv008 14:e0e88a009f4c 26 for(int i = 1; i <= 6; i++) //ID portion of ROM array
maxv008 14:e0e88a009f4c 27 {
maxv008 14:e0e88a009f4c 28 data.set_u8(i - 1, ProbeROM[i]);
maxv008 14:e0e88a009f4c 29 }
maxv008 14:e0e88a009f4c 30 //Conversion of float to a short, requires multiplying by 100 to not lose precision
maxv008 14:e0e88a009f4c 31 float temp100 = Temperature * 100;
maxv008 14:e0e88a009f4c 32 short shortTemp = (short) temp100;
maxv008 14:e0e88a009f4c 33 data.set_16(3, shortTemp);//There seems to be an error in the function definition for set_16, (ushort instead of short)
maxv008 14:e0e88a009f4c 34
lcockerton62 0:0a5f554d2a16 35 for (int i = 0; i<8; i++) {
lcockerton62 0:0a5f554d2a16 36 msg.data[i] = data.get_u8(i);
lcockerton62 0:0a5f554d2a16 37 }
lcockerton62 0:0a5f554d2a16 38
lcockerton62 0:0a5f554d2a16 39 return msg;
lcockerton62 0:0a5f554d2a16 40 }
maxv008 13:7b42af989cd1 41 /**
maxv008 13:7b42af989cd1 42 * Takes a CANMessage with precondition that it stores temperature of an individual
maxv008 13:7b42af989cd1 43 * probe and returns an individual_temperature object containing ID and reading.
maxv008 14:e0e88a009f4c 44 * The ID is stores in ROM array entry 1-6, other entries may be invalid.
maxv008 13:7b42af989cd1 45 */
maxv008 13:7b42af989cd1 46 individual_temperature decodeTemperatureTelemetry(CANMessage msg)
maxv008 13:7b42af989cd1 47 {
maxv008 13:7b42af989cd1 48 individual_temperature probe_reading;
maxv008 13:7b42af989cd1 49 CAN_Data decode;
maxv008 13:7b42af989cd1 50
maxv008 13:7b42af989cd1 51 decode.importCANData(msg);
maxv008 14:e0e88a009f4c 52 short shortTemp = decode.get_16(3);
maxv008 14:e0e88a009f4c 53 probe_reading.measurement = ((float)shortTemp) / 100;
maxv008 14:e0e88a009f4c 54
maxv008 14:e0e88a009f4c 55 for(int i = 1; i <=6; i++)
maxv008 14:e0e88a009f4c 56 {
maxv008 14:e0e88a009f4c 57 probe_reading.ROMID[i] = decode.get_u8(i-1);
maxv008 14:e0e88a009f4c 58 }
maxv008 13:7b42af989cd1 59
maxv008 13:7b42af989cd1 60 return probe_reading;
maxv008 13:7b42af989cd1 61 }
lcockerton62 0:0a5f554d2a16 62
msharma97 9:82ba050a7e13 63 CANMessage createVoltageTelemetry(int offset_id, uint16_t voltage[])
lcockerton62 0:0a5f554d2a16 64 {
lcockerton62 0:0a5f554d2a16 65 CANMessage msg;
lcockerton62 0:0a5f554d2a16 66 msg.len = 8;
msharma97 9:82ba050a7e13 67 msg.id = BMS_BASE_ID + offset_id; // for voltage 0x601 - 0x6EF @TODO
lcockerton62 0:0a5f554d2a16 68 CAN_Data data;
lcockerton62 0:0a5f554d2a16 69
lcockerton62 0:0a5f554d2a16 70 data.set_u16(0, voltage[0]);
lcockerton62 0:0a5f554d2a16 71 data.set_u16(1, voltage[1]);
lcockerton62 0:0a5f554d2a16 72 data.set_u16(2, voltage[2]);
lcockerton62 0:0a5f554d2a16 73 data.set_u16(3, voltage[3]);
lcockerton62 0:0a5f554d2a16 74
lcockerton62 0:0a5f554d2a16 75 for (int i = 0; i<8; i++) {
lcockerton62 0:0a5f554d2a16 76 msg.data[i] = data.get_u8(i);
lcockerton62 0:0a5f554d2a16 77 }
lcockerton62 0:0a5f554d2a16 78
lcockerton62 0:0a5f554d2a16 79 return msg;
lcockerton62 0:0a5f554d2a16 80 }
lcockerton62 0:0a5f554d2a16 81
lcockerton62 0:0a5f554d2a16 82 CANMessage createPackSOC(float SOC, float percentageCharge)
lcockerton62 0:0a5f554d2a16 83 {
lcockerton62 0:0a5f554d2a16 84 CANMessage msg;
lcockerton62 0:0a5f554d2a16 85 msg.len = 8;
lcockerton62 0:0a5f554d2a16 86 msg.id = BMS_BASE_ID + BATTERY_SOC_ID;
lcockerton62 0:0a5f554d2a16 87 CAN_Data data;
lcockerton62 0:0a5f554d2a16 88 data.setLowerFloat(SOC);
lcockerton62 0:0a5f554d2a16 89 data.setUpperFloat(percentageCharge);
lcockerton62 1:51477fe4851b 90 for(int i=0; i<8; i++) {
lcockerton62 0:0a5f554d2a16 91 msg.data[i] = data.get_u8(i);
lcockerton62 0:0a5f554d2a16 92 }
lcockerton62 1:51477fe4851b 93
lcockerton62 0:0a5f554d2a16 94 return msg;
lcockerton62 0:0a5f554d2a16 95 }
lcockerton62 0:0a5f554d2a16 96
lcockerton62 0:0a5f554d2a16 97 CANMessage createPackBalanceSOC(float SOC, float percentageCharge)
lcockerton62 0:0a5f554d2a16 98 {
lcockerton62 0:0a5f554d2a16 99 // @TODO - check is this being used?? section 5.4 trituim BMU CAN data sheet
lcockerton62 0:0a5f554d2a16 100 CANMessage msg;
lcockerton62 0:0a5f554d2a16 101 msg.len = 8;
lcockerton62 1:51477fe4851b 102 msg.id = BMS_BASE_ID + BATTERY_SOC_BASE_ID;
lcockerton62 1:51477fe4851b 103
lcockerton62 0:0a5f554d2a16 104 CAN_Data data;
lcockerton62 0:0a5f554d2a16 105 data.setLowerFloat(SOC);
lcockerton62 0:0a5f554d2a16 106 data.setUpperFloat(percentageCharge);
lcockerton62 1:51477fe4851b 107 for(int i=0; i<8; i++) {
lcockerton62 0:0a5f554d2a16 108 msg.data[i] = data.get_u8(i);
lcockerton62 0:0a5f554d2a16 109 }
lcockerton62 1:51477fe4851b 110
lcockerton62 0:0a5f554d2a16 111 return msg;
lcockerton62 0:0a5f554d2a16 112 }
lcockerton62 0:0a5f554d2a16 113
lcockerton62 1:51477fe4851b 114 CANMessage createCellVoltageMAXMIN(pack_voltage_extremes max_voltage, pack_voltage_extremes min_voltage)
lcockerton62 0:0a5f554d2a16 115 {
lcockerton62 0:0a5f554d2a16 116 CANMessage msg;
lcockerton62 0:0a5f554d2a16 117 msg.len = 8;
lcockerton62 1:51477fe4851b 118 msg.id = BMS_BASE_ID + MAX_MIN_VOLTAGE;
lcockerton62 1:51477fe4851b 119
lcockerton62 0:0a5f554d2a16 120 CAN_Data data;
lcockerton62 1:51477fe4851b 121 data.set_u16(0,min_voltage.voltage); //Min voltage
lcockerton62 1:51477fe4851b 122 data.set_u16(1,max_voltage.voltage); //Max voltage
lcockerton62 1:51477fe4851b 123 data.set_u8(4,min_voltage.CMU_number); //CMU number of lowest cell
lcockerton62 1:51477fe4851b 124 data.set_u8(5,min_voltage.cell_number); //Cell number in CMU with lowest voltage
lcockerton62 1:51477fe4851b 125 data.set_u8(6,min_voltage.CMU_number); //CMU number of maxiumum cell
lcockerton62 1:51477fe4851b 126 data.set_u8(7,min_voltage.cell_number); //Cell number in CMU with highest voltage
lcockerton62 1:51477fe4851b 127
lcockerton62 1:51477fe4851b 128 for(int i=0; i<8; i++) {
lcockerton62 0:0a5f554d2a16 129 msg.data[i] = data.get_u8(i);
lcockerton62 0:0a5f554d2a16 130 }
lcockerton62 1:51477fe4851b 131
lcockerton62 0:0a5f554d2a16 132 return msg;
lcockerton62 0:0a5f554d2a16 133 }
lcockerton62 0:0a5f554d2a16 134
lcockerton62 1:51477fe4851b 135 CANMessage createCellTemperatureMAXMIN(pack_temperature_extremes min_temperature, pack_temperature_extremes max_temperature)
lcockerton62 0:0a5f554d2a16 136 {
lcockerton62 0:0a5f554d2a16 137 CANMessage msg;
lcockerton62 0:0a5f554d2a16 138 msg.len = 8;
lcockerton62 1:51477fe4851b 139 msg.id = BMS_BASE_ID + MAX_MIN_TEMPERATURE;
lcockerton62 1:51477fe4851b 140
lcockerton62 0:0a5f554d2a16 141 CAN_Data data;
lcockerton62 1:51477fe4851b 142 data.set_u16(0,min_temperature.temperature); //Min temperature
lcockerton62 1:51477fe4851b 143 data.set_u16(1,max_temperature.temperature); //Max temperature
lcockerton62 1:51477fe4851b 144 data.set_u8(4,min_temperature.CMU_number); //CMU number of lowest temperature cell
lcockerton62 0:0a5f554d2a16 145 data.set_u8(5,BLANK_DATA); //Dummy data
lcockerton62 1:51477fe4851b 146 data.set_u8(6,max_temperature.CMU_number); //CMU number of maxiumum temperature cell
lcockerton62 1:51477fe4851b 147 data.set_u8(7,BLANK_DATA); //Dummy data
lcockerton62 1:51477fe4851b 148
lcockerton62 1:51477fe4851b 149 for(int i=0; i<8; i++) {
lcockerton62 0:0a5f554d2a16 150 msg.data[i] = data.get_u8(i);
lcockerton62 0:0a5f554d2a16 151 }
lcockerton62 1:51477fe4851b 152
lcockerton62 0:0a5f554d2a16 153 return msg;
lcockerton62 0:0a5f554d2a16 154 }
lcockerton62 0:0a5f554d2a16 155
lcockerton62 0:0a5f554d2a16 156 CANMessage createBatteryVI(uint32_t batteryVoltage,uint32_t batteryCurrent)
lcockerton62 0:0a5f554d2a16 157 {
lcockerton62 0:0a5f554d2a16 158 CANMessage msg;
lcockerton62 0:0a5f554d2a16 159 msg.len = 8;
lcockerton62 1:51477fe4851b 160 msg.id = BMS_BASE_ID + BATTERY_VI_ID;
lcockerton62 1:51477fe4851b 161
lcockerton62 0:0a5f554d2a16 162 CAN_Data data;
lcockerton62 3:527790e4965a 163 data.setLower_uLong(batteryVoltage);
lcockerton62 3:527790e4965a 164 data.setHigher_uLong(batteryCurrent);
lcockerton62 1:51477fe4851b 165
lcockerton62 1:51477fe4851b 166 for(int i=0; i<8; i++) {
lcockerton62 0:0a5f554d2a16 167 msg.data[i] = data.get_u8(i);
lcockerton62 0:0a5f554d2a16 168 }
lcockerton62 0:0a5f554d2a16 169 return msg;
lcockerton62 0:0a5f554d2a16 170 }
lcockerton62 0:0a5f554d2a16 171
lcockerton62 0:0a5f554d2a16 172 CANMessage createBatteryPackStatus(uint16_t voltageThreshold[], uint8_t statusFlag,uint8_t BMS_CMU_Count,uint16_t BMS_Firmware_Build)
lcockerton62 0:0a5f554d2a16 173 {
lcockerton62 1:51477fe4851b 174 CANMessage msg;
lcockerton62 1:51477fe4851b 175 msg.len = 8;
lcockerton62 1:51477fe4851b 176 msg.id = BMS_BASE_ID + BATTERY_PACK_STATUS_ID;
lcockerton62 1:51477fe4851b 177
lcockerton62 1:51477fe4851b 178 CAN_Data data;
lcockerton62 1:51477fe4851b 179 data.set_u16(0,voltageThreshold[0]);
lcockerton62 1:51477fe4851b 180 data.set_u16(1,voltageThreshold[1]);
lcockerton62 1:51477fe4851b 181 data.set_16(3,BMS_Firmware_Build);
lcockerton62 1:51477fe4851b 182 data.set_u8(4,statusFlag);
lcockerton62 1:51477fe4851b 183 data.set_u8(5,BMS_CMU_Count);
lcockerton62 1:51477fe4851b 184
lcockerton62 1:51477fe4851b 185 for(int i=0; i<8; i++) {
lcockerton62 1:51477fe4851b 186 msg.data[i] = data.get_u8(i);
lcockerton62 1:51477fe4851b 187 }
lcockerton62 1:51477fe4851b 188 return msg;
lcockerton62 0:0a5f554d2a16 189 }
lcockerton62 0:0a5f554d2a16 190
lcockerton62 0:0a5f554d2a16 191 CANMessage createExtendedBatteryPackStatus(uint32_t status)
lcockerton62 0:0a5f554d2a16 192 {
lcockerton62 1:51477fe4851b 193 CANMessage msg;
lcockerton62 1:51477fe4851b 194 msg.len = 8;
lcockerton62 1:51477fe4851b 195 msg.id = BMS_BASE_ID + BATTERY_STATUS_ID;
lcockerton62 1:51477fe4851b 196
lcockerton62 1:51477fe4851b 197 CAN_Data data;
lcockerton62 1:51477fe4851b 198 data.setLower_uLong(status); //@TODO see the data sheet for this
lcockerton62 1:51477fe4851b 199 data.set_u8(4,0x00);//Hardware version random data @TODO check this
lcockerton62 1:51477fe4851b 200 data.set_u8(5,0x00);//Model ID @TODO check this
lcockerton62 1:51477fe4851b 201 data.set_u16(3,0x00); // Unused
lcockerton62 1:51477fe4851b 202
lcockerton62 1:51477fe4851b 203 for(int i=0; i<8; i++) {
lcockerton62 1:51477fe4851b 204 msg.data[i] = data.get_u8(i);
lcockerton62 1:51477fe4851b 205 }
lcockerton62 1:51477fe4851b 206 return msg;
lcockerton62 0:0a5f554d2a16 207 }
lcockerton62 0:0a5f554d2a16 208
lcockerton62 0:0a5f554d2a16 209 void convertFloatFloat(float lower, float upper, CANMessage& msg, bool littleEndian)
lcockerton62 0:0a5f554d2a16 210 {
lcockerton62 0:0a5f554d2a16 211 // Code taken from driver_controls
lcockerton62 0:0a5f554d2a16 212 //two converters for lower and higher float
lcockerton62 0:0a5f554d2a16 213 float2byte convL;
lcockerton62 0:0a5f554d2a16 214 float2byte convH;
lcockerton62 0:0a5f554d2a16 215 convL.f = lower;
lcockerton62 0:0a5f554d2a16 216 convH.f = upper;
lcockerton62 0:0a5f554d2a16 217 if(littleEndian) {
lcockerton62 0:0a5f554d2a16 218 for(int i=0; i<4; i++) {
lcockerton62 0:0a5f554d2a16 219 msg.data[i] = convL.b[i];
lcockerton62 0:0a5f554d2a16 220 //offset for upper float
lcockerton62 0:0a5f554d2a16 221 msg.data[i+4]=convH.b[i];
lcockerton62 0:0a5f554d2a16 222 }
lcockerton62 0:0a5f554d2a16 223 } else {
lcockerton62 0:0a5f554d2a16 224 for(int i=0; i<4; i++) {
lcockerton62 0:0a5f554d2a16 225 /*
lcockerton62 0:0a5f554d2a16 226 * Subtract because output data is Big Endian
lcockerton62 0:0a5f554d2a16 227 * i.e. convL/H is LSB --> MSB
lcockerton62 0:0a5f554d2a16 228 * output is MSB --> LSB
lcockerton62 0:0a5f554d2a16 229 */
lcockerton62 1:51477fe4851b 230
lcockerton62 0:0a5f554d2a16 231 msg.data[4-i] = convL.b[i];
lcockerton62 0:0a5f554d2a16 232 msg.data[7-i] = convH.b[i];
lcockerton62 0:0a5f554d2a16 233 }
lcockerton62 0:0a5f554d2a16 234 }
lcockerton62 1:51477fe4851b 235
lcockerton62 0:0a5f554d2a16 236 }
lcockerton62 0:0a5f554d2a16 237