I added functionality to get the RSSI, BER, and Cell Neighbor for reporting connection issues to M2X
Dependencies: mbed FXOS8700CQ mbed-rtos WNCInterface M2XStreamClient-JMF jsonlite
hts221_driver.cpp@13:99c72ab600c9, 2019-04-18 (annotated)
- Committer:
- ng977t
- Date:
- Thu Apr 18 22:58:31 2019 +0000
- Revision:
- 13:99c72ab600c9
- Parent:
- 4:08979e323c6e
I added functionality to get the RSSI, BER, and Cell Neighbor for reporting connection issues to M2X
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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jk431j | 4:08979e323c6e | 1 | /* =================================================================== |
jk431j | 4:08979e323c6e | 2 | Copyright © 2016, AVNET Inc. |
jk431j | 4:08979e323c6e | 3 | |
jk431j | 4:08979e323c6e | 4 | Licensed under the Apache License, Version 2.0 (the "License"); |
jk431j | 4:08979e323c6e | 5 | you may not use this file except in compliance with the License. |
jk431j | 4:08979e323c6e | 6 | You may obtain a copy of the License at |
jk431j | 4:08979e323c6e | 7 | |
jk431j | 4:08979e323c6e | 8 | http://www.apache.org/licenses/LICENSE-2.0 |
jk431j | 4:08979e323c6e | 9 | |
jk431j | 4:08979e323c6e | 10 | Unless required by applicable law or agreed to in writing, |
jk431j | 4:08979e323c6e | 11 | software distributed under the License is distributed on an |
jk431j | 4:08979e323c6e | 12 | "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, |
jk431j | 4:08979e323c6e | 13 | either express or implied. See the License for the specific |
jk431j | 4:08979e323c6e | 14 | language governing permissions and limitations under the License. |
jk431j | 4:08979e323c6e | 15 | |
jk431j | 4:08979e323c6e | 16 | ======================================================================== */ |
jk431j | 4:08979e323c6e | 17 | |
jk431j | 4:08979e323c6e | 18 | #include "HTS221.h" |
jk431j | 4:08979e323c6e | 19 | |
jk431j | 4:08979e323c6e | 20 | |
jk431j | 4:08979e323c6e | 21 | // ------------------------------------------------------------------------------ |
jk431j | 4:08979e323c6e | 22 | //jmf -- define I2C pins and functions to read & write to I2C device |
jk431j | 4:08979e323c6e | 23 | |
jk431j | 4:08979e323c6e | 24 | #include <string> |
jk431j | 4:08979e323c6e | 25 | #include "mbed.h" |
jk431j | 4:08979e323c6e | 26 | extern I2C i2c; |
jk431j | 4:08979e323c6e | 27 | |
jk431j | 4:08979e323c6e | 28 | // Read a single unsigned char from addressToRead and return it as a unsigned char |
jk431j | 4:08979e323c6e | 29 | unsigned char HTS221::readRegister(unsigned char slaveAddress, unsigned char ToRead) |
jk431j | 4:08979e323c6e | 30 | { |
jk431j | 4:08979e323c6e | 31 | char data = ToRead; |
jk431j | 4:08979e323c6e | 32 | |
jk431j | 4:08979e323c6e | 33 | //i2c.write(slaveAddress, &data, 1, 0); |
jk431j | 4:08979e323c6e | 34 | i2c.write(slaveAddress, &data, 1, 1); //by Stefan |
jk431j | 4:08979e323c6e | 35 | i2c.read(slaveAddress, &data, 1, 0); |
jk431j | 4:08979e323c6e | 36 | return data; |
jk431j | 4:08979e323c6e | 37 | } |
jk431j | 4:08979e323c6e | 38 | |
jk431j | 4:08979e323c6e | 39 | // Writes a single unsigned char (dataToWrite) into regToWrite |
jk431j | 4:08979e323c6e | 40 | int HTS221::writeRegister(unsigned char slaveAddress, unsigned char regToWrite, unsigned char dataToWrite) |
jk431j | 4:08979e323c6e | 41 | { |
jk431j | 4:08979e323c6e | 42 | const char data[] = {regToWrite, dataToWrite}; |
jk431j | 4:08979e323c6e | 43 | |
jk431j | 4:08979e323c6e | 44 | return i2c.write(slaveAddress,data,2,0); |
jk431j | 4:08979e323c6e | 45 | } |
jk431j | 4:08979e323c6e | 46 | |
jk431j | 4:08979e323c6e | 47 | |
jk431j | 4:08979e323c6e | 48 | //jmf end |
jk431j | 4:08979e323c6e | 49 | // ------------------------------------------------------------------------------ |
jk431j | 4:08979e323c6e | 50 | |
jk431j | 4:08979e323c6e | 51 | //static inline int humidityReady(uint8_t data) { |
jk431j | 4:08979e323c6e | 52 | // return (data & 0x02); |
jk431j | 4:08979e323c6e | 53 | //} |
jk431j | 4:08979e323c6e | 54 | //static inline int temperatureReady(uint8_t data) { |
jk431j | 4:08979e323c6e | 55 | // return (data & 0x01); |
jk431j | 4:08979e323c6e | 56 | //} |
jk431j | 4:08979e323c6e | 57 | |
jk431j | 4:08979e323c6e | 58 | |
jk431j | 4:08979e323c6e | 59 | HTS221::HTS221(void) : _address(HTS221_ADDRESS) |
jk431j | 4:08979e323c6e | 60 | { |
jk431j | 4:08979e323c6e | 61 | _temperature = 0; |
jk431j | 4:08979e323c6e | 62 | _humidity = 0; |
jk431j | 4:08979e323c6e | 63 | } |
jk431j | 4:08979e323c6e | 64 | |
jk431j | 4:08979e323c6e | 65 | |
jk431j | 4:08979e323c6e | 66 | int HTS221::begin(void) |
jk431j | 4:08979e323c6e | 67 | { |
jk431j | 4:08979e323c6e | 68 | uint8_t data; |
jk431j | 4:08979e323c6e | 69 | |
jk431j | 4:08979e323c6e | 70 | data = readRegister(_address, WHO_AM_I); |
jk431j | 4:08979e323c6e | 71 | if (data == WHO_AM_I_RETURN){ |
jk431j | 4:08979e323c6e | 72 | if (activate()){ |
jk431j | 4:08979e323c6e | 73 | storeCalibration(); |
jk431j | 4:08979e323c6e | 74 | return data; |
jk431j | 4:08979e323c6e | 75 | } |
jk431j | 4:08979e323c6e | 76 | } |
jk431j | 4:08979e323c6e | 77 | |
jk431j | 4:08979e323c6e | 78 | return 0; |
jk431j | 4:08979e323c6e | 79 | } |
jk431j | 4:08979e323c6e | 80 | |
jk431j | 4:08979e323c6e | 81 | int |
jk431j | 4:08979e323c6e | 82 | HTS221::storeCalibration(void) |
jk431j | 4:08979e323c6e | 83 | { |
jk431j | 4:08979e323c6e | 84 | uint8_t data; |
jk431j | 4:08979e323c6e | 85 | uint16_t tmp; |
jk431j | 4:08979e323c6e | 86 | |
jk431j | 4:08979e323c6e | 87 | for (int reg=CALIB_START; reg<=CALIB_END; reg++) { |
jk431j | 4:08979e323c6e | 88 | if ((reg!=CALIB_START+8) && (reg!=CALIB_START+9) && (reg!=CALIB_START+4)) { |
jk431j | 4:08979e323c6e | 89 | |
jk431j | 4:08979e323c6e | 90 | data = readRegister(HTS221_ADDRESS, reg); |
jk431j | 4:08979e323c6e | 91 | |
jk431j | 4:08979e323c6e | 92 | switch (reg) { |
jk431j | 4:08979e323c6e | 93 | case CALIB_START: |
jk431j | 4:08979e323c6e | 94 | _h0_rH = data; |
jk431j | 4:08979e323c6e | 95 | break; |
jk431j | 4:08979e323c6e | 96 | case CALIB_START+1: |
jk431j | 4:08979e323c6e | 97 | _h1_rH = data; |
jk431j | 4:08979e323c6e | 98 | break; |
jk431j | 4:08979e323c6e | 99 | case CALIB_START+2: |
jk431j | 4:08979e323c6e | 100 | _T0_degC = data; |
jk431j | 4:08979e323c6e | 101 | break; |
jk431j | 4:08979e323c6e | 102 | case CALIB_START+3: |
jk431j | 4:08979e323c6e | 103 | _T1_degC = data; |
jk431j | 4:08979e323c6e | 104 | break; |
jk431j | 4:08979e323c6e | 105 | |
jk431j | 4:08979e323c6e | 106 | case CALIB_START+5: |
jk431j | 4:08979e323c6e | 107 | tmp = _T0_degC; |
jk431j | 4:08979e323c6e | 108 | _T0_degC = (data&0x3)<<8; |
jk431j | 4:08979e323c6e | 109 | _T0_degC |= tmp; |
jk431j | 4:08979e323c6e | 110 | |
jk431j | 4:08979e323c6e | 111 | tmp = _T1_degC; |
jk431j | 4:08979e323c6e | 112 | _T1_degC = ((data&0xC)>>2)<<8; |
jk431j | 4:08979e323c6e | 113 | _T1_degC |= tmp; |
jk431j | 4:08979e323c6e | 114 | break; |
jk431j | 4:08979e323c6e | 115 | case CALIB_START+6: |
jk431j | 4:08979e323c6e | 116 | _H0_T0 = data; |
jk431j | 4:08979e323c6e | 117 | break; |
jk431j | 4:08979e323c6e | 118 | case CALIB_START+7: |
jk431j | 4:08979e323c6e | 119 | _H0_T0 |= data<<8; |
jk431j | 4:08979e323c6e | 120 | break; |
jk431j | 4:08979e323c6e | 121 | case CALIB_START+0xA: |
jk431j | 4:08979e323c6e | 122 | _H1_T0 = data; |
jk431j | 4:08979e323c6e | 123 | break; |
jk431j | 4:08979e323c6e | 124 | case CALIB_START+0xB: |
jk431j | 4:08979e323c6e | 125 | _H1_T0 |= data <<8; |
jk431j | 4:08979e323c6e | 126 | break; |
jk431j | 4:08979e323c6e | 127 | case CALIB_START+0xC: |
jk431j | 4:08979e323c6e | 128 | _T0_OUT = data; |
jk431j | 4:08979e323c6e | 129 | break; |
jk431j | 4:08979e323c6e | 130 | case CALIB_START+0xD: |
jk431j | 4:08979e323c6e | 131 | _T0_OUT |= data << 8; |
jk431j | 4:08979e323c6e | 132 | break; |
jk431j | 4:08979e323c6e | 133 | case CALIB_START+0xE: |
jk431j | 4:08979e323c6e | 134 | _T1_OUT = data; |
jk431j | 4:08979e323c6e | 135 | break; |
jk431j | 4:08979e323c6e | 136 | case CALIB_START+0xF: |
jk431j | 4:08979e323c6e | 137 | _T1_OUT |= data << 8; |
jk431j | 4:08979e323c6e | 138 | break; |
jk431j | 4:08979e323c6e | 139 | |
jk431j | 4:08979e323c6e | 140 | |
jk431j | 4:08979e323c6e | 141 | case CALIB_START+8: |
jk431j | 4:08979e323c6e | 142 | case CALIB_START+9: |
jk431j | 4:08979e323c6e | 143 | case CALIB_START+4: |
jk431j | 4:08979e323c6e | 144 | //DO NOTHING |
jk431j | 4:08979e323c6e | 145 | break; |
jk431j | 4:08979e323c6e | 146 | |
jk431j | 4:08979e323c6e | 147 | // to cover any possible error |
jk431j | 4:08979e323c6e | 148 | default: |
jk431j | 4:08979e323c6e | 149 | return false; |
jk431j | 4:08979e323c6e | 150 | } /* switch */ |
jk431j | 4:08979e323c6e | 151 | } /* if */ |
jk431j | 4:08979e323c6e | 152 | } /* for */ |
jk431j | 4:08979e323c6e | 153 | return true; |
jk431j | 4:08979e323c6e | 154 | } |
jk431j | 4:08979e323c6e | 155 | |
jk431j | 4:08979e323c6e | 156 | |
jk431j | 4:08979e323c6e | 157 | int |
jk431j | 4:08979e323c6e | 158 | HTS221::activate(void) |
jk431j | 4:08979e323c6e | 159 | { |
jk431j | 4:08979e323c6e | 160 | uint8_t data; |
jk431j | 4:08979e323c6e | 161 | |
jk431j | 4:08979e323c6e | 162 | data = readRegister(_address, CTRL_REG1); |
jk431j | 4:08979e323c6e | 163 | data |= POWER_UP; |
jk431j | 4:08979e323c6e | 164 | data |= ODR0_SET; |
jk431j | 4:08979e323c6e | 165 | writeRegister(_address, CTRL_REG1, data); |
jk431j | 4:08979e323c6e | 166 | |
jk431j | 4:08979e323c6e | 167 | return true; |
jk431j | 4:08979e323c6e | 168 | } |
jk431j | 4:08979e323c6e | 169 | |
jk431j | 4:08979e323c6e | 170 | |
jk431j | 4:08979e323c6e | 171 | int HTS221::deactivate(void) |
jk431j | 4:08979e323c6e | 172 | { |
jk431j | 4:08979e323c6e | 173 | uint8_t data; |
jk431j | 4:08979e323c6e | 174 | |
jk431j | 4:08979e323c6e | 175 | data = readRegister(_address, CTRL_REG1); |
jk431j | 4:08979e323c6e | 176 | data &= ~POWER_UP; |
jk431j | 4:08979e323c6e | 177 | writeRegister(_address, CTRL_REG1, data); |
jk431j | 4:08979e323c6e | 178 | return true; |
jk431j | 4:08979e323c6e | 179 | } |
jk431j | 4:08979e323c6e | 180 | |
jk431j | 4:08979e323c6e | 181 | |
jk431j | 4:08979e323c6e | 182 | int |
jk431j | 4:08979e323c6e | 183 | HTS221::bduActivate(void) |
jk431j | 4:08979e323c6e | 184 | { |
jk431j | 4:08979e323c6e | 185 | uint8_t data; |
jk431j | 4:08979e323c6e | 186 | |
jk431j | 4:08979e323c6e | 187 | data = readRegister(_address, CTRL_REG1); |
jk431j | 4:08979e323c6e | 188 | data |= BDU_SET; |
jk431j | 4:08979e323c6e | 189 | writeRegister(_address, CTRL_REG1, data); |
jk431j | 4:08979e323c6e | 190 | |
jk431j | 4:08979e323c6e | 191 | return true; |
jk431j | 4:08979e323c6e | 192 | } |
jk431j | 4:08979e323c6e | 193 | |
jk431j | 4:08979e323c6e | 194 | |
jk431j | 4:08979e323c6e | 195 | int |
jk431j | 4:08979e323c6e | 196 | HTS221::bduDeactivate(void) |
jk431j | 4:08979e323c6e | 197 | { |
jk431j | 4:08979e323c6e | 198 | uint8_t data; |
jk431j | 4:08979e323c6e | 199 | |
jk431j | 4:08979e323c6e | 200 | data = readRegister(_address, CTRL_REG1); |
jk431j | 4:08979e323c6e | 201 | data &= ~BDU_SET; |
jk431j | 4:08979e323c6e | 202 | writeRegister(_address, CTRL_REG1, data); |
jk431j | 4:08979e323c6e | 203 | return true; |
jk431j | 4:08979e323c6e | 204 | } |
jk431j | 4:08979e323c6e | 205 | |
jk431j | 4:08979e323c6e | 206 | |
jk431j | 4:08979e323c6e | 207 | int |
jk431j | 4:08979e323c6e | 208 | HTS221::readHumidity(void) |
jk431j | 4:08979e323c6e | 209 | { |
jk431j | 4:08979e323c6e | 210 | uint8_t data = 0; |
jk431j | 4:08979e323c6e | 211 | uint16_t h_out = 0; |
jk431j | 4:08979e323c6e | 212 | double h_temp = 0.0; |
jk431j | 4:08979e323c6e | 213 | double hum = 0.0; |
jk431j | 4:08979e323c6e | 214 | |
jk431j | 4:08979e323c6e | 215 | data = readRegister(_address, STATUS_REG); |
jk431j | 4:08979e323c6e | 216 | |
jk431j | 4:08979e323c6e | 217 | if (data & HUMIDITY_READY) { |
jk431j | 4:08979e323c6e | 218 | data = readRegister(_address, HUMIDITY_H_REG); |
jk431j | 4:08979e323c6e | 219 | h_out = data << 8; // MSB |
jk431j | 4:08979e323c6e | 220 | data = readRegister(_address, HUMIDITY_L_REG); |
jk431j | 4:08979e323c6e | 221 | h_out |= data; // LSB |
jk431j | 4:08979e323c6e | 222 | |
jk431j | 4:08979e323c6e | 223 | // Decode Humidity |
jk431j | 4:08979e323c6e | 224 | hum = ((int16_t)(_h1_rH) - (int16_t)(_h0_rH))/2.0; // remove x2 multiple |
jk431j | 4:08979e323c6e | 225 | |
jk431j | 4:08979e323c6e | 226 | // Calculate humidity in decimal of grade centigrades i.e. 15.0 = 150. |
jk431j | 4:08979e323c6e | 227 | h_temp = (((int16_t)h_out - (int16_t)_H0_T0) * hum) / ((int16_t)_H1_T0 - (int16_t)_H0_T0); |
jk431j | 4:08979e323c6e | 228 | hum = ((int16_t)_h0_rH) / 2.0; // remove x2 multiple |
jk431j | 4:08979e323c6e | 229 | _humidity = (int16_t)((hum + h_temp)); // provide signed % measurement unit |
jk431j | 4:08979e323c6e | 230 | } |
jk431j | 4:08979e323c6e | 231 | return _humidity; |
jk431j | 4:08979e323c6e | 232 | } |
jk431j | 4:08979e323c6e | 233 | |
jk431j | 4:08979e323c6e | 234 | |
jk431j | 4:08979e323c6e | 235 | |
jk431j | 4:08979e323c6e | 236 | double |
jk431j | 4:08979e323c6e | 237 | HTS221::readTemperature(void) |
jk431j | 4:08979e323c6e | 238 | { |
jk431j | 4:08979e323c6e | 239 | uint8_t data = 0; |
jk431j | 4:08979e323c6e | 240 | uint16_t t_out = 0; |
jk431j | 4:08979e323c6e | 241 | double t_temp = 0.0; |
jk431j | 4:08979e323c6e | 242 | double deg = 0.0; |
jk431j | 4:08979e323c6e | 243 | |
jk431j | 4:08979e323c6e | 244 | data = readRegister(_address, STATUS_REG); |
jk431j | 4:08979e323c6e | 245 | |
jk431j | 4:08979e323c6e | 246 | if (data & TEMPERATURE_READY) { |
jk431j | 4:08979e323c6e | 247 | |
jk431j | 4:08979e323c6e | 248 | data= readRegister(_address, TEMP_H_REG); |
jk431j | 4:08979e323c6e | 249 | t_out = data << 8; // MSB |
jk431j | 4:08979e323c6e | 250 | data = readRegister(_address, TEMP_L_REG); |
jk431j | 4:08979e323c6e | 251 | t_out |= data; // LSB |
jk431j | 4:08979e323c6e | 252 | |
jk431j | 4:08979e323c6e | 253 | // Decode Temperature |
jk431j | 4:08979e323c6e | 254 | deg = ((int16_t)(_T1_degC) - (int16_t)(_T0_degC))/8.0; // remove x8 multiple |
jk431j | 4:08979e323c6e | 255 | |
jk431j | 4:08979e323c6e | 256 | // Calculate Temperature in decimal of grade centigrades i.e. 15.0 = 150. |
jk431j | 4:08979e323c6e | 257 | t_temp = (((int16_t)t_out - (int16_t)_T0_OUT) * deg) / ((int16_t)_T1_OUT - (int16_t)_T0_OUT); |
jk431j | 4:08979e323c6e | 258 | deg = ((int16_t)_T0_degC) / 8.0; // remove x8 multiple |
jk431j | 4:08979e323c6e | 259 | _temperature = deg + t_temp; // provide signed celsius measurement unit |
jk431j | 4:08979e323c6e | 260 | } |
jk431j | 4:08979e323c6e | 261 | |
jk431j | 4:08979e323c6e | 262 | return _temperature; |
jk431j | 4:08979e323c6e | 263 | } |