Kevin Braun / INA230

Texas Instruments INA230 hi/lo side, bi-directional current and voltage monitor with I2C. Code hacked and enhanced from the INA219 driver from TI

Fork of INA219 by Kenji Arai

INA230.cpp@3:3ee11c82acdb, 2017-03-24 (annotated)

Committer:
loopsva
Date:
Fri Mar 24 00:13:28 2017 +0000
Revision:
3:3ee11c82acdb
Initial release of the INA230 I2C driver

Who changed what in which revision?

UserRevisionLine numberNew contents of line
loopsva 3:3ee11c82acdb 1 /*
loopsva 3:3ee11c82acdb 2 * mbed library program
loopsva 3:3ee11c82acdb 3 * INA230 High-Side Measurement,Bi-Directional CURRENT/POWER MONITOR with I2C Interface
loopsva 3:3ee11c82acdb 4 * by Texas Instruments
loopsva 3:3ee11c82acdb 5 *
loopsva 3:3ee11c82acdb 6 * Copyright (c) 2015 Kenji Arai / JH1PJL
loopsva 3:3ee11c82acdb 7 * http://www.page.sannet.ne.jp/kenjia/index.html
loopsva 3:3ee11c82acdb 8 * http://mbed.org/users/kenjiArai/
loopsva 3:3ee11c82acdb 9 * Created: January 25th, 2015
loopsva 3:3ee11c82acdb 10 * Revised: May 5th, 2015
loopsva 3:3ee11c82acdb 11 *
loopsva 3:3ee11c82acdb 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
loopsva 3:3ee11c82acdb 13 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
loopsva 3:3ee11c82acdb 14 * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
loopsva 3:3ee11c82acdb 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
loopsva 3:3ee11c82acdb 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
loopsva 3:3ee11c82acdb 17 */
loopsva 3:3ee11c82acdb 18
loopsva 3:3ee11c82acdb 19 #include "mbed.h"
loopsva 3:3ee11c82acdb 20 #include "INA230.h"
loopsva 3:3ee11c82acdb 21
loopsva 3:3ee11c82acdb 22 INA230::INA230 (PinName p_sda, PinName p_scl, const INA230_TypeDef *ina230_parameter) :
loopsva 3:3ee11c82acdb 23 _i2c(p_sda, p_scl)
loopsva 3:3ee11c82acdb 24 {
loopsva 3:3ee11c82acdb 25 _i2c.frequency(400000);
loopsva 3:3ee11c82acdb 26 ina230_set_data = *ina230_parameter;
loopsva 3:3ee11c82acdb 27 initialize();
loopsva 3:3ee11c82acdb 28 }
loopsva 3:3ee11c82acdb 29
loopsva 3:3ee11c82acdb 30 INA230::INA230 (PinName p_sda, PinName p_scl, uint8_t addr) :
loopsva 3:3ee11c82acdb 31 _i2c(p_sda, p_scl)
loopsva 3:3ee11c82acdb 32 {
loopsva 3:3ee11c82acdb 33 _i2c.frequency(400000);
loopsva 3:3ee11c82acdb 34 // Use standard setting
loopsva 3:3ee11c82acdb 35 ina230_set_data = ina230_std_paramtr;
loopsva 3:3ee11c82acdb 36 // Change user defined address
loopsva 3:3ee11c82acdb 37 ina230_set_data.addr = addr;
loopsva 3:3ee11c82acdb 38 initialize();
loopsva 3:3ee11c82acdb 39 }
loopsva 3:3ee11c82acdb 40
loopsva 3:3ee11c82acdb 41 INA230::INA230 (PinName p_sda, PinName p_scl) :
loopsva 3:3ee11c82acdb 42 _i2c(p_sda, p_scl)
loopsva 3:3ee11c82acdb 43 {
loopsva 3:3ee11c82acdb 44 _i2c.frequency(400000);
loopsva 3:3ee11c82acdb 45 // Use standard setting
loopsva 3:3ee11c82acdb 46 ina230_set_data = ina230_std_paramtr;
loopsva 3:3ee11c82acdb 47 initialize();
loopsva 3:3ee11c82acdb 48 }
loopsva 3:3ee11c82acdb 49
loopsva 3:3ee11c82acdb 50 INA230::INA230 (I2C& p_i2c, const INA230_TypeDef *ina230_parameter) : _i2c(p_i2c)
loopsva 3:3ee11c82acdb 51 {
loopsva 3:3ee11c82acdb 52 _i2c.frequency(400000);
loopsva 3:3ee11c82acdb 53 ina230_set_data = *ina230_parameter;
loopsva 3:3ee11c82acdb 54 initialize();
loopsva 3:3ee11c82acdb 55 }
loopsva 3:3ee11c82acdb 56
loopsva 3:3ee11c82acdb 57 INA230::INA230 (I2C& p_i2c, uint8_t addr) : _i2c(p_i2c)
loopsva 3:3ee11c82acdb 58 {
loopsva 3:3ee11c82acdb 59 _i2c.frequency(400000);
loopsva 3:3ee11c82acdb 60 // Use standard setting
loopsva 3:3ee11c82acdb 61 ina230_set_data = ina230_std_paramtr;
loopsva 3:3ee11c82acdb 62 // Change user defined address
loopsva 3:3ee11c82acdb 63 ina230_set_data.addr = addr;
loopsva 3:3ee11c82acdb 64 initialize();
loopsva 3:3ee11c82acdb 65 }
loopsva 3:3ee11c82acdb 66
loopsva 3:3ee11c82acdb 67 INA230::INA230 (I2C& p_i2c) : _i2c(p_i2c)
loopsva 3:3ee11c82acdb 68 {
loopsva 3:3ee11c82acdb 69 _i2c.frequency(400000);
loopsva 3:3ee11c82acdb 70 // Use standard setting
loopsva 3:3ee11c82acdb 71 ina230_set_data = ina230_std_paramtr;
loopsva 3:3ee11c82acdb 72 initialize();
loopsva 3:3ee11c82acdb 73 }
loopsva 3:3ee11c82acdb 74
loopsva 3:3ee11c82acdb 75 /////////////// Read Current //////////////////////////////
loopsva 3:3ee11c82acdb 76 //int16_t rawIreg = 0;
loopsva 3:3ee11c82acdb 77 float INA230::read_current()
loopsva 3:3ee11c82acdb 78 {
loopsva 3:3ee11c82acdb 79 dt[0] = INA230_CURRENT;
loopsva 3:3ee11c82acdb 80 _i2c.write((int)ina230_set_data.addr, (char *)dt, 1, true);
loopsva 3:3ee11c82acdb 81 _i2c.read((int)ina230_set_data.addr, (char *)dt, 2, false);
loopsva 3:3ee11c82acdb 82 int16_t data = (dt[0] << 8) | dt[1];
loopsva 3:3ee11c82acdb 83 //rawIreg = data;
loopsva 3:3ee11c82acdb 84 return (double)data * 0.08255;
loopsva 3:3ee11c82acdb 85 // 0.06605 & CalReg = 0xF000 works to 2.16A (25.9W) with 2512 0.01ohm, cal'd @ 1.500A
loopsva 3:3ee11c82acdb 86 // 0.07075 & CalReg = 0xE000 works to 2.31A (27.7W)
loopsva 3:3ee11c82acdb 87 // 0.07617 & CalReg = 0xD000 works to 2.50A (30.0W)
loopsva 3:3ee11c82acdb 88 // 0.08255 & CalReg = 0xC000 works to 2.70A (32.4W)
loopsva 3:3ee11c82acdb 89 //was
loopsva 3:3ee11c82acdb 90 // 0.06065 & CalReg = 0xF000 works to 1.98A (23.8W) with 1206 0.01ohm
loopsva 3:3ee11c82acdb 91 // 0.06500 & CalReg = 0xE000 works to 2.15A (25.9W)
loopsva 3:3ee11c82acdb 92 // 0.07570 & CalReg = 0xC000 works to 2.48A (29.4W)
loopsva 3:3ee11c82acdb 93 }
loopsva 3:3ee11c82acdb 94
loopsva 3:3ee11c82acdb 95 /////////////// Read Current //////////////////////////////
loopsva 3:3ee11c82acdb 96 int16_t INA230::read_current_reg()
loopsva 3:3ee11c82acdb 97 {
loopsva 3:3ee11c82acdb 98 dt[0] = INA230_CURRENT;
loopsva 3:3ee11c82acdb 99 _i2c.write((int)ina230_set_data.addr, (char *)dt, 1, true);
loopsva 3:3ee11c82acdb 100 _i2c.read((int)ina230_set_data.addr, (char *)dt, 2, false);
loopsva 3:3ee11c82acdb 101 uint16_t data = (dt[0] << 8) | dt[1];
loopsva 3:3ee11c82acdb 102 return data;
loopsva 3:3ee11c82acdb 103 }
loopsva 3:3ee11c82acdb 104
loopsva 3:3ee11c82acdb 105 /////////////// Read Power ////////////////////////////////
loopsva 3:3ee11c82acdb 106 float INA230::read_power()
loopsva 3:3ee11c82acdb 107 {
loopsva 3:3ee11c82acdb 108 dt[0] = INA230_POWER;
loopsva 3:3ee11c82acdb 109 _i2c.write((int)ina230_set_data.addr, (char *)dt, 1, true);
loopsva 3:3ee11c82acdb 110 _i2c.read((int)ina230_set_data.addr, (char *)dt, 2, false);
loopsva 3:3ee11c82acdb 111 int16_t data = (dt[0] << 8) | dt[1];
loopsva 3:3ee11c82acdb 112 return (float)data / 2000;
loopsva 3:3ee11c82acdb 113 }
loopsva 3:3ee11c82acdb 114
loopsva 3:3ee11c82acdb 115 //---------------------------------------------------------------------
loopsva 3:3ee11c82acdb 116 // Read Bus_volt
loopsva 3:3ee11c82acdb 117
loopsva 3:3ee11c82acdb 118 float INA230::read_bus_voltage()
loopsva 3:3ee11c82acdb 119 {
loopsva 3:3ee11c82acdb 120 dt[0] = INA230_BUS_VOLT;
loopsva 3:3ee11c82acdb 121 _i2c.write((int)ina230_set_data.addr, (char *)dt, 1, true);
loopsva 3:3ee11c82acdb 122 _i2c.read((int)ina230_set_data.addr, (char *)dt, 2, false);
loopsva 3:3ee11c82acdb 123 int16_t data = (dt[0] << 8) | dt[1];
loopsva 3:3ee11c82acdb 124 //pc.printf("\r\nG = %+9.3f [V] 0x%x\r\n", (float)data * 0.00125f, data);
loopsva 3:3ee11c82acdb 125 return (float)data * 0.00125f;
loopsva 3:3ee11c82acdb 126 }
loopsva 3:3ee11c82acdb 127
loopsva 3:3ee11c82acdb 128 /////////////// Read Shunt volt ///////////////////////////
loopsva 3:3ee11c82acdb 129 float INA230::read_shunt_voltage()
loopsva 3:3ee11c82acdb 130 {
loopsva 3:3ee11c82acdb 131 dt[0] = INA230_SHUNT_V;
loopsva 3:3ee11c82acdb 132 _i2c.write((int)ina230_set_data.addr, (char *)dt, 1, true);
loopsva 3:3ee11c82acdb 133 _i2c.read((int)ina230_set_data.addr, (char *)dt, 2, false);
loopsva 3:3ee11c82acdb 134 int16_t data = (dt[0] << 8) | dt[1];
loopsva 3:3ee11c82acdb 135 return (float)data;
loopsva 3:3ee11c82acdb 136 }
loopsva 3:3ee11c82acdb 137
loopsva 3:3ee11c82acdb 138 float INA230::read_current_by_shuntvolt()
loopsva 3:3ee11c82acdb 139 {
loopsva 3:3ee11c82acdb 140 dt[0] = INA230_SHUNT_V;
loopsva 3:3ee11c82acdb 141 _i2c.write((int)ina230_set_data.addr, (char *)dt, 1, true);
loopsva 3:3ee11c82acdb 142 _i2c.read((int)ina230_set_data.addr, (char *)dt, 2, false);
loopsva 3:3ee11c82acdb 143 int16_t data = (dt[0] << 8) | dt[1];
loopsva 3:3ee11c82acdb 144 return (float)data / 10;
loopsva 3:3ee11c82acdb 145 // return ((float)data / ina230_set_data.shunt_register) / 1000;
loopsva 3:3ee11c82acdb 146 }
loopsva 3:3ee11c82acdb 147
loopsva 3:3ee11c82acdb 148 /////////////// Read configulation ////////////////////////
loopsva 3:3ee11c82acdb 149 uint16_t INA230::read_config()
loopsva 3:3ee11c82acdb 150 {
loopsva 3:3ee11c82acdb 151 dt[0] = INA230_CONFIG;
loopsva 3:3ee11c82acdb 152 _i2c.write((int)ina230_set_data.addr, (char *)dt, 1, true);
loopsva 3:3ee11c82acdb 153 _i2c.read((int)ina230_set_data.addr, (char *)dt, 2, false);
loopsva 3:3ee11c82acdb 154 uint16_t data = (dt[0] << 8) | dt[1];
loopsva 3:3ee11c82acdb 155 return data;
loopsva 3:3ee11c82acdb 156 }
loopsva 3:3ee11c82acdb 157
loopsva 3:3ee11c82acdb 158 //---------------------------------------------------------------------
loopsva 3:3ee11c82acdb 159 // get mask enable reg
loopsva 3:3ee11c82acdb 160
loopsva 3:3ee11c82acdb 161 uint16_t INA230::read_mask_enable()
loopsva 3:3ee11c82acdb 162 {
loopsva 3:3ee11c82acdb 163 dt[0] = INA230_MASK_ENABLE;
loopsva 3:3ee11c82acdb 164 _i2c.write((int)ina230_set_data.addr, (char *)dt, 1, true);
loopsva 3:3ee11c82acdb 165 _i2c.read((int)ina230_set_data.addr, (char *)dt, 2, false);
loopsva 3:3ee11c82acdb 166 uint16_t data = (dt[0] << 8) | dt[1];
loopsva 3:3ee11c82acdb 167 ina230_set_data.die_id_data = data;
loopsva 3:3ee11c82acdb 168 return data;
loopsva 3:3ee11c82acdb 169 }
loopsva 3:3ee11c82acdb 170
loopsva 3:3ee11c82acdb 171 //---------------------------------------------------------------------
loopsva 3:3ee11c82acdb 172 // get alert limit register
loopsva 3:3ee11c82acdb 173
loopsva 3:3ee11c82acdb 174 uint16_t INA230::read_alert_limit()
loopsva 3:3ee11c82acdb 175 {
loopsva 3:3ee11c82acdb 176 dt[0] = INA230_ALERT_LIMIT;
loopsva 3:3ee11c82acdb 177 _i2c.write((int)ina230_set_data.addr, (char *)dt, 1, true);
loopsva 3:3ee11c82acdb 178 _i2c.read((int)ina230_set_data.addr, (char *)dt, 2, false);
loopsva 3:3ee11c82acdb 179 uint16_t data = (dt[0] << 8) | dt[1];
loopsva 3:3ee11c82acdb 180 ina230_set_data.die_id_data = data;
loopsva 3:3ee11c82acdb 181 return data;
loopsva 3:3ee11c82acdb 182 }
loopsva 3:3ee11c82acdb 183
loopsva 3:3ee11c82acdb 184 //---------------------------------------------------------------------
loopsva 3:3ee11c82acdb 185 // get die ID
loopsva 3:3ee11c82acdb 186
loopsva 3:3ee11c82acdb 187 uint16_t INA230::read_die_id()
loopsva 3:3ee11c82acdb 188 {
loopsva 3:3ee11c82acdb 189 dt[0] = INA230_DIE_ID;
loopsva 3:3ee11c82acdb 190 _i2c.write((int)ina230_set_data.addr, (char *)dt, 1, true);
loopsva 3:3ee11c82acdb 191 _i2c.read((int)ina230_set_data.addr, (char *)dt, 2, false);
loopsva 3:3ee11c82acdb 192 uint16_t data = (dt[0] << 8) | dt[1];
loopsva 3:3ee11c82acdb 193 ina230_set_data.die_id_data = data;
loopsva 3:3ee11c82acdb 194 return data;
loopsva 3:3ee11c82acdb 195 }
loopsva 3:3ee11c82acdb 196
loopsva 3:3ee11c82acdb 197 //---------------------------------------------------------------------
loopsva 3:3ee11c82acdb 198 // set mask enable register
loopsva 3:3ee11c82acdb 199
loopsva 3:3ee11c82acdb 200 uint16_t INA230::set_mask_enable(uint16_t cfg)
loopsva 3:3ee11c82acdb 201 {
loopsva 3:3ee11c82acdb 202 uint16_t data = cfg;
loopsva 3:3ee11c82acdb 203 dt[0] = INA230_MASK_ENABLE;
loopsva 3:3ee11c82acdb 204 dt[1] = data >> 8; // MSB 1st
loopsva 3:3ee11c82acdb 205 dt[2] = data & 0xff; // LSB 2nd
loopsva 3:3ee11c82acdb 206 _i2c.write((int)ina230_set_data.addr, (char *)dt, 3, false);
loopsva 3:3ee11c82acdb 207 return data;
loopsva 3:3ee11c82acdb 208 }
loopsva 3:3ee11c82acdb 209
loopsva 3:3ee11c82acdb 210 //---------------------------------------------------------------------
loopsva 3:3ee11c82acdb 211 // set mask enable register
loopsva 3:3ee11c82acdb 212
loopsva 3:3ee11c82acdb 213 uint16_t INA230::set_alert_limit(uint16_t cfg)
loopsva 3:3ee11c82acdb 214 {
loopsva 3:3ee11c82acdb 215 uint16_t data = cfg;
loopsva 3:3ee11c82acdb 216 dt[0] = INA230_ALERT_LIMIT;
loopsva 3:3ee11c82acdb 217 dt[1] = data >> 8; // MSB 1st
loopsva 3:3ee11c82acdb 218 dt[2] = data & 0xff; // LSB 2nd
loopsva 3:3ee11c82acdb 219 _i2c.write((int)ina230_set_data.addr, (char *)dt, 3, false);
loopsva 3:3ee11c82acdb 220 return data;
loopsva 3:3ee11c82acdb 221 }
loopsva 3:3ee11c82acdb 222
loopsva 3:3ee11c82acdb 223 //---------------------------------------------------------------------
loopsva 3:3ee11c82acdb 224 // get shunt resistor value
loopsva 3:3ee11c82acdb 225
loopsva 3:3ee11c82acdb 226 int16_t INA230::get_shunt_res() { return ina230_set_data.shunt_res; }
loopsva 3:3ee11c82acdb 227
loopsva 3:3ee11c82acdb 228 /*
loopsva 3:3ee11c82acdb 229 //---------------------------------------------------------------------
loopsva 3:3ee11c82acdb 230 // print stuff for degugging
loopsva 3:3ee11c82acdb 231
loopsva 3:3ee11c82acdb 232 extern RawSerial pc;
loopsva 3:3ee11c82acdb 233
loopsva 3:3ee11c82acdb 234 void INA230::dumpStructure() {
loopsva 3:3ee11c82acdb 235 pc.printf("Addr: %02x A: %04x B: %04x S: %04x M: %04x Conf: %04x Cal: %04x Die: %04x SR: %d\r\n", ina230_set_data.addr, ina230_set_data.average, ina230_set_data.bus_ct,
loopsva 3:3ee11c82acdb 236 ina230_set_data.shunt_ct, ina230_set_data.mode,
loopsva 3:3ee11c82acdb 237 ina230_set_data.average | ina230_set_data.bus_ct | ina230_set_data.shunt_ct | ina230_set_data.mode,
loopsva 3:3ee11c82acdb 238 ina230_set_data.cal_data, ina230_set_data.die_id_data, ina230_set_data.shunt_res);
loopsva 3:3ee11c82acdb 239 }
loopsva 3:3ee11c82acdb 240 */
loopsva 3:3ee11c82acdb 241
loopsva 3:3ee11c82acdb 242 /////////////// Set configulation /////////////////////////
loopsva 3:3ee11c82acdb 243 uint16_t INA230::set_config(uint16_t cfg)
loopsva 3:3ee11c82acdb 244 {
loopsva 3:3ee11c82acdb 245 uint16_t data = cfg;
loopsva 3:3ee11c82acdb 246 dt[0] = INA230_CONFIG;
loopsva 3:3ee11c82acdb 247 dt[1] = data >> 8; // MSB 1st
loopsva 3:3ee11c82acdb 248 dt[2] = data & 0xff; // LSB 2nd
loopsva 3:3ee11c82acdb 249 _i2c.write((int)ina230_set_data.addr, (char *)dt, 3, false);
loopsva 3:3ee11c82acdb 250 return data;
loopsva 3:3ee11c82acdb 251 }
loopsva 3:3ee11c82acdb 252
loopsva 3:3ee11c82acdb 253 /////////////// Read Calibration reg. /////////////////////
loopsva 3:3ee11c82acdb 254 uint16_t INA230::read_calb(void)
loopsva 3:3ee11c82acdb 255 {
loopsva 3:3ee11c82acdb 256 dt[0] = INA230_CALIB;
loopsva 3:3ee11c82acdb 257 _i2c.write((int)ina230_set_data.addr, (char *)dt, 1, true);
loopsva 3:3ee11c82acdb 258 _i2c.read((int)ina230_set_data.addr, (char *)dt, 2, false);
loopsva 3:3ee11c82acdb 259 uint16_t data = (dt[0] << 8) | dt[1];
loopsva 3:3ee11c82acdb 260 return data;
loopsva 3:3ee11c82acdb 261 }
loopsva 3:3ee11c82acdb 262
loopsva 3:3ee11c82acdb 263 /////////////// Set Calibration reg. //////////////////////
loopsva 3:3ee11c82acdb 264 uint16_t INA230::set_calb(uint16_t clb)
loopsva 3:3ee11c82acdb 265 {
loopsva 3:3ee11c82acdb 266 uint16_t data = clb;
loopsva 3:3ee11c82acdb 267 dt[0] = INA230_CALIB;
loopsva 3:3ee11c82acdb 268 dt[1] = data >> 8; // MSB 1st
loopsva 3:3ee11c82acdb 269 dt[2] = data & 0xff; // LSB 2nd
loopsva 3:3ee11c82acdb 270 _i2c.write((int)ina230_set_data.addr, (char *)dt, 3, false);
loopsva 3:3ee11c82acdb 271 return data;
loopsva 3:3ee11c82acdb 272 }
loopsva 3:3ee11c82acdb 273
loopsva 3:3ee11c82acdb 274 /////////////// Read/Write specific register //////////////
loopsva 3:3ee11c82acdb 275 uint8_t INA230::read_reg(uint8_t addr)
loopsva 3:3ee11c82acdb 276 {
loopsva 3:3ee11c82acdb 277 dt[0] = addr;
loopsva 3:3ee11c82acdb 278 _i2c.write((int)ina230_set_data.addr, (char *)dt, 1, true);
loopsva 3:3ee11c82acdb 279 _i2c.read((int)ina230_set_data.addr, (char *)dt, 1, false);
loopsva 3:3ee11c82acdb 280 return dt[0];
loopsva 3:3ee11c82acdb 281 }
loopsva 3:3ee11c82acdb 282
loopsva 3:3ee11c82acdb 283 uint8_t INA230::write_reg(uint8_t addr, uint8_t data)
loopsva 3:3ee11c82acdb 284 {
loopsva 3:3ee11c82acdb 285 dt[0] = addr;
loopsva 3:3ee11c82acdb 286 dt[1] = data;
loopsva 3:3ee11c82acdb 287 _i2c.write((int)ina230_set_data.addr, (char *)dt, 2, false);
loopsva 3:3ee11c82acdb 288 return dt[1];
loopsva 3:3ee11c82acdb 289 }
loopsva 3:3ee11c82acdb 290
loopsva 3:3ee11c82acdb 291 /////////////// Initialize ////////////////////////////////
loopsva 3:3ee11c82acdb 292 void INA230::initialize()
loopsva 3:3ee11c82acdb 293 {
loopsva 3:3ee11c82acdb 294 /*
loopsva 3:3ee11c82acdb 295 uint16_t data = 0;
loopsva 3:3ee11c82acdb 296 data = (ina230_set_data.v_max & 0x01) << 13;
loopsva 3:3ee11c82acdb 297 data |= (ina230_set_data.gain & 0x03) << 11;
loopsva 3:3ee11c82acdb 298 data |= (ina230_set_data.bus_adc_resolution & 0x0f) << 7;
loopsva 3:3ee11c82acdb 299 data |= (ina230_set_data.Shunt_adc_resolution & 0x0f) << 3;
loopsva 3:3ee11c82acdb 300 data |= (ina230_set_data.mode & 0x07);
loopsva 3:3ee11c82acdb 301 */
loopsva 3:3ee11c82acdb 302 uint16_t data = ina230_set_data.average | ina230_set_data.bus_ct | ina230_set_data.shunt_ct | ina230_set_data.bus_ct | ina230_set_data.mode;
loopsva 3:3ee11c82acdb 303 dt[0] = INA230_CONFIG;
loopsva 3:3ee11c82acdb 304 dt[1] = data >> 8; // MSB 1st
loopsva 3:3ee11c82acdb 305 dt[2] = data & 0xff; // LSB 2nd
loopsva 3:3ee11c82acdb 306 _i2c.write((int)ina230_set_data.addr, (char *)dt, 3, false);
loopsva 3:3ee11c82acdb 307 dt[0] = INA230_CALIB;
loopsva 3:3ee11c82acdb 308 dt[1] = ina230_set_data.cal_data >> 8; // MSB 1st
loopsva 3:3ee11c82acdb 309 dt[2] = ina230_set_data.cal_data & 0xff; // LSB 2nd
loopsva 3:3ee11c82acdb 310 _i2c.write((int)ina230_set_data.addr, (char *)dt, 3, false);
loopsva 3:3ee11c82acdb 311 scale_factor = 0;
loopsva 3:3ee11c82acdb 312 }
loopsva 3:3ee11c82acdb 313
loopsva 3:3ee11c82acdb 314 /////////////// I2C Freq. /////////////////////////////////
loopsva 3:3ee11c82acdb 315 void INA230::frequency(int hz)
loopsva 3:3ee11c82acdb 316 {
loopsva 3:3ee11c82acdb 317 _i2c.frequency(hz);
loopsva 3:3ee11c82acdb 318 }
loopsva 3:3ee11c82acdb 319
loopsva 3:3ee11c82acdb 320
loopsva 3:3ee11c82acdb 321