Maxim Integrated
This is a library for the MAX17055 Li+ Battery Fuel Gauge.
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max17055.cpp@11:bdbd3104995b, 2018-02-27 (annotated)
- Committer:
- fneirab
- Date:
- Tue Feb 27 15:53:04 2018 +0000
- Revision:
- 11:bdbd3104995b
- Parent:
- 9:f29d5e49b190
- Child:
- 12:519a18fc3b28
new documentation. Need to check if the functions had been affected by the changes.
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| fneirab | 4:a4d6ae2182c2 | 1 | /******************************************************************//** |
| fneirab | 4:a4d6ae2182c2 | 2 | * @file max17055.cpp |
| fneirab | 4:a4d6ae2182c2 | 3 | * |
| fneirab | 4:a4d6ae2182c2 | 4 | * @author Felipe Neira - Maxim Integrated - TTS |
| fneirab | 4:a4d6ae2182c2 | 5 | * |
| fneirab | 11:bdbd3104995b | 6 | * @version 1.4 |
| fneirab | 4:a4d6ae2182c2 | 7 | * |
| fneirab | 11:bdbd3104995b | 8 | * Started: 6FEB18 |
| fneirab | 4:a4d6ae2182c2 | 9 | * |
| fneirab | 9:f29d5e49b190 | 10 | * Updated: |
| fneirab | 11:bdbd3104995b | 11 | * Modifications to reflect applicable functions and .h file association |
| fneirab | 9:f29d5e49b190 | 12 | * |
| fneirab | 9:f29d5e49b190 | 13 | * |
| fneirab | 4:a4d6ae2182c2 | 14 | * |
| fneirab | 9:f29d5e49b190 | 15 | /******************************************************************************* |
| fneirab | 9:f29d5e49b190 | 16 | * Copyright (C) 2018 Maxim Integrated Products, Inc., All Rights Reserved. |
| fneirab | 4:a4d6ae2182c2 | 17 | * |
| fneirab | 4:a4d6ae2182c2 | 18 | * Permission is hereby granted, free of charge, to any person obtaining a |
| fneirab | 4:a4d6ae2182c2 | 19 | * copy of this software and associated documentation files (the "Software"), |
| fneirab | 4:a4d6ae2182c2 | 20 | * to deal in the Software without restriction, including without limitation |
| fneirab | 4:a4d6ae2182c2 | 21 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| fneirab | 4:a4d6ae2182c2 | 22 | * and/or sell copies of the Software, and to permit persons to whom the |
| fneirab | 4:a4d6ae2182c2 | 23 | * Software is furnished to do so, subject to the following conditions: |
| fneirab | 4:a4d6ae2182c2 | 24 | * |
| fneirab | 4:a4d6ae2182c2 | 25 | * The above copyright notice and this permission notice shall be included |
| fneirab | 4:a4d6ae2182c2 | 26 | * in all copies or substantial portions of the Software. |
| fneirab | 4:a4d6ae2182c2 | 27 | * |
| fneirab | 4:a4d6ae2182c2 | 28 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| fneirab | 4:a4d6ae2182c2 | 29 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| fneirab | 4:a4d6ae2182c2 | 30 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| fneirab | 4:a4d6ae2182c2 | 31 | * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES |
| fneirab | 4:a4d6ae2182c2 | 32 | * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| fneirab | 4:a4d6ae2182c2 | 33 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| fneirab | 4:a4d6ae2182c2 | 34 | * OTHER DEALINGS IN THE SOFTWARE. |
| fneirab | 4:a4d6ae2182c2 | 35 | * |
| fneirab | 4:a4d6ae2182c2 | 36 | * Except as contained in this notice, the name of Maxim Integrated |
| fneirab | 4:a4d6ae2182c2 | 37 | * Products, Inc. shall not be used except as stated in the Maxim Integrated |
| fneirab | 4:a4d6ae2182c2 | 38 | * Products, Inc. Branding Policy. |
| fneirab | 4:a4d6ae2182c2 | 39 | * |
| fneirab | 4:a4d6ae2182c2 | 40 | * The mere transfer of this software does not imply any licenses |
| fneirab | 4:a4d6ae2182c2 | 41 | * of trade secrets, proprietary technology, copyrights, patents, |
| fneirab | 4:a4d6ae2182c2 | 42 | * trademarks, maskwork rights, or any other form of intellectual |
| fneirab | 4:a4d6ae2182c2 | 43 | * property whatsoever. Maxim Integrated Products, Inc. retains all |
| fneirab | 4:a4d6ae2182c2 | 44 | * ownership rights. |
| fneirab | 9:f29d5e49b190 | 45 | ******************************************************************************* |
| fneirab | 9:f29d5e49b190 | 46 | */ |
| fneirab | 0:80c39eb8f3ba | 47 | |
| fneirab | 0:80c39eb8f3ba | 48 | #include "mbed.h" |
| fneirab | 0:80c39eb8f3ba | 49 | #include "max17055.h" |
| fneirab | 0:80c39eb8f3ba | 50 | |
| fneirab | 11:bdbd3104995b | 51 | // #define DRV_NAME "max17055" ///not used |
| fneirab | 5:a18a189588dc | 52 | |
| fneirab | 11:bdbd3104995b | 53 | // /* CONFIG register bits */ |
| fneirab | 11:bdbd3104995b | 54 | // #define MAX17055_CONFIG_ALfRT_EN (1 << 2) ///not used |
| fneirab | 11:bdbd3104995b | 55 | // #define MAX17055_CONFIG2_LDMDL (1 << 5) ///not used |
| fneirab | 5:a18a189588dc | 56 | |
| fneirab | 11:bdbd3104995b | 57 | // /* STATUS register bits */ |
| fneirab | 11:bdbd3104995b | 58 | // #define MAX17055_STATUS_BST (1 << 3) ///not used |
| fneirab | 11:bdbd3104995b | 59 | // #define MAX17055_STATUS_POR (1 << 1) |
| fneirab | 5:a18a189588dc | 60 | |
| fneirab | 9:f29d5e49b190 | 61 | /* POR Mask */ |
| fneirab | 9:f29d5e49b190 | 62 | #define MAX17055_POR_MASK (0xFFFD) |
| fneirab | 9:f29d5e49b190 | 63 | |
| fneirab | 5:a18a189588dc | 64 | /* MODELCFG register bits */ |
| fneirab | 5:a18a189588dc | 65 | #define MAX17055_MODELCFG_REFRESH (1 << 15) |
| fneirab | 5:a18a189588dc | 66 | |
| fneirab | 11:bdbd3104995b | 67 | // /* TALRTTH register bits */ |
| fneirab | 11:bdbd3104995b | 68 | // #define MIN_TEMP_ALERT 0 ///not used |
| fneirab | 11:bdbd3104995b | 69 | // #define MAX_TEMP_ALERT 8 ///not used |
| fneirab | 5:a18a189588dc | 70 | |
| fneirab | 5:a18a189588dc | 71 | /* FSTAT register bits */ |
| fneirab | 5:a18a189588dc | 72 | #define MAX17055_FSTAT_DNR (1) |
| fneirab | 5:a18a189588dc | 73 | |
| fneirab | 11:bdbd3104995b | 74 | // /* STATUS interrupt status bits */ |
| fneirab | 11:bdbd3104995b | 75 | // #define MAX17055_STATUS_ALRT_CLR_MASK (0x88BB) |
| fneirab | 11:bdbd3104995b | 76 | // #define MAX17055_STATUS_SOC_MAX_ALRT (1 << 14) |
| fneirab | 11:bdbd3104995b | 77 | // #define MAX17055_STATUS_TEMP_MAX_ALRT (1 << 13) |
| fneirab | 11:bdbd3104995b | 78 | // #define MAX17055_STATUS_VOLT_MAX_ALRT (1 << 12) |
| fneirab | 11:bdbd3104995b | 79 | // #define MAX17055_STATUS_SOC_MIN_ALRT (1 << 10) |
| fneirab | 11:bdbd3104995b | 80 | // #define MAX17055_STATUS_TEMP_MIN_ALRT (1 << 9) |
| fneirab | 11:bdbd3104995b | 81 | // #define MAX17055_STATUS_VOLT_MIN_ALRT (1 << 8) |
| fneirab | 11:bdbd3104995b | 82 | // #define MAX17055_STATUS_CURR_MAX_ALRT (1 << 6) |
| fneirab | 11:bdbd3104995b | 83 | // #define MAX17055_STATUS_CURR_MIN_ALRT (1 << 2) |
| fneirab | 5:a18a189588dc | 84 | |
| fneirab | 11:bdbd3104995b | 85 | // #define MAX17055_VMAX_TOLERANCE 50 /* 50 mV */ |
| fneirab | 11:bdbd3104995b | 86 | |
| fneirab | 11:bdbd3104995b | 87 | /* LIBRARY FUNCTION SUCCESS*/ |
| fneirab | 11:bdbd3104995b | 88 | #define F_SUCCESS_0 0 |
| fneirab | 11:bdbd3104995b | 89 | |
| fneirab | 11:bdbd3104995b | 90 | /* LIBRARY FUNCTION ERROR CODES */ |
| fneirab | 11:bdbd3104995b | 91 | #define F_ERROR_1 -1 //-1 if read/write errors exist |
| fneirab | 11:bdbd3104995b | 92 | #define F_ERROR_2 -2 //-2 if device is not present |
| fneirab | 11:bdbd3104995b | 93 | #define F_ERROR_3 -3 //-3 if function error |
| fneirab | 11:bdbd3104995b | 94 | #define F_ERROR_4 -4 //-4 if other error |
| fneirab | 11:bdbd3104995b | 95 | #define F_ERROR_5 -5 //-5 if POR not detected |
| fneirab | 4:a4d6ae2182c2 | 96 | |
| fneirab | 0:80c39eb8f3ba | 97 | |
| fneirab | 5:a18a189588dc | 98 | |
| fneirab | 11:bdbd3104995b | 99 | /** |
| fneirab | 11:bdbd3104995b | 100 | * @brief max17055 Constructor |
| fneirab | 11:bdbd3104995b | 101 | * @details max17055 Constructor with battery and i2c as parameters |
| fneirab | 11:bdbd3104995b | 102 | */ |
| fneirab | 5:a18a189588dc | 103 | MAX17055::MAX17055(I2C &i2c): |
| fneirab | 5:a18a189588dc | 104 | m_i2cBus(i2c) |
| fneirab | 0:80c39eb8f3ba | 105 | { |
| fneirab | 5:a18a189588dc | 106 | //empty block |
| fneirab | 0:80c39eb8f3ba | 107 | } |
| fneirab | 0:80c39eb8f3ba | 108 | |
| fneirab | 11:bdbd3104995b | 109 | /** |
| fneirab | 11:bdbd3104995b | 110 | * @brief Fuel Gauge Destructor |
| fneirab | 11:bdbd3104995b | 111 | */ |
| fneirab | 0:80c39eb8f3ba | 112 | MAX17055::~MAX17055() |
| fneirab | 0:80c39eb8f3ba | 113 | { |
| fneirab | 0:80c39eb8f3ba | 114 | //empty block |
| fneirab | 0:80c39eb8f3ba | 115 | } |
| fneirab | 5:a18a189588dc | 116 | |
| fneirab | 0:80c39eb8f3ba | 117 | /** |
| fneirab | 11:bdbd3104995b | 118 | * @brief Writes a register. |
| fneirab | 11:bdbd3104995b | 119 | * |
| fneirab | 11:bdbd3104995b | 120 | * @param[in] reg_addr The register address |
| fneirab | 11:bdbd3104995b | 121 | * @param[in] reg_data The register data |
| fneirab | 11:bdbd3104995b | 122 | * |
| fneirab | 11:bdbd3104995b | 123 | * @retval 0 on success |
| fneirab | 11:bdbd3104995b | 124 | * @retval non-0 for errors |
| fneirab | 11:bdbd3104995b | 125 | */ |
| fneirab | 0:80c39eb8f3ba | 126 | int MAX17055::writeReg(Registers_e reg_addr, uint16_t reg_data) |
| fneirab | 0:80c39eb8f3ba | 127 | { |
| fneirab | 0:80c39eb8f3ba | 128 | |
| fneirab | 7:479a36909ced | 129 | uint16_t mask = 0x00FF; |
| fneirab | 1:a031f0c6a71e | 130 | uint8_t dataLSB; |
| fneirab | 1:a031f0c6a71e | 131 | uint8_t dataMSB; |
| fneirab | 5:a18a189588dc | 132 | |
| fneirab | 7:479a36909ced | 133 | dataLSB = reg_data & mask; |
| fneirab | 7:479a36909ced | 134 | dataMSB = (reg_data >> 8) & mask; |
| fneirab | 5:a18a189588dc | 135 | |
| fneirab | 7:479a36909ced | 136 | char addr_plus_data[3] = {reg_addr, dataLSB, dataMSB}; |
| fneirab | 5:a18a189588dc | 137 | |
| fneirab | 11:bdbd3104995b | 138 | if ( m_i2cBus.write(I2C_W_ADRS, addr_plus_data, 3, false) == F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 139 | return F_SUCCESS_0; |
| fneirab | 0:80c39eb8f3ba | 140 | else |
| fneirab | 11:bdbd3104995b | 141 | return F_ERROR_1; |
| fneirab | 11:bdbd3104995b | 142 | } |
| fneirab | 0:80c39eb8f3ba | 143 | |
| fneirab | 0:80c39eb8f3ba | 144 | /** |
| fneirab | 11:bdbd3104995b | 145 | * @brief Reads from MAX17055 register. |
| fneirab | 11:bdbd3104995b | 146 | * |
| fneirab | 11:bdbd3104995b | 147 | * @param[in] reg_addr The register address |
| fneirab | 11:bdbd3104995b | 148 | * @param value The value |
| fneirab | 11:bdbd3104995b | 149 | * |
| fneirab | 11:bdbd3104995b | 150 | * @retval 0 on success |
| fneirab | 11:bdbd3104995b | 151 | * @retval non-0 for errors |
| fneirab | 11:bdbd3104995b | 152 | */ |
| fneirab | 1:a031f0c6a71e | 153 | int32_t MAX17055::readReg(Registers_e reg_addr, uint16_t &value) |
| fneirab | 0:80c39eb8f3ba | 154 | { |
| fneirab | 0:80c39eb8f3ba | 155 | int32_t result; |
| fneirab | 7:479a36909ced | 156 | uint16_t mask = 0x00FF; |
| fneirab | 1:a031f0c6a71e | 157 | char local_data[1]; |
| fneirab | 0:80c39eb8f3ba | 158 | local_data[0] = reg_addr; |
| fneirab | 1:a031f0c6a71e | 159 | char read_data[2]; |
| fneirab | 5:a18a189588dc | 160 | |
| fneirab | 0:80c39eb8f3ba | 161 | result = m_i2cBus.write(I2C_W_ADRS, local_data, 1); |
| fneirab | 11:bdbd3104995b | 162 | if(result == F_SUCCESS_0) { |
| fneirab | 1:a031f0c6a71e | 163 | result = m_i2cBus.read(I2C_R_ADRS, read_data , 2, false); |
| fneirab | 11:bdbd3104995b | 164 | if (result == F_SUCCESS_0) { |
| fneirab | 7:479a36909ced | 165 | value = ( ((read_data[1] & mask) << 8) + (read_data[0])); |
| fneirab | 11:bdbd3104995b | 166 | result = F_SUCCESS_0; |
| fneirab | 5:a18a189588dc | 167 | } |
| fneirab | 0:80c39eb8f3ba | 168 | } |
| fneirab | 0:80c39eb8f3ba | 169 | return result; |
| fneirab | 0:80c39eb8f3ba | 170 | } |
| fneirab | 0:80c39eb8f3ba | 171 | |
| fneirab | 1:a031f0c6a71e | 172 | /** |
| fneirab | 11:bdbd3104995b | 173 | * @brief Write and Verify a MAX17055 register |
| fneirab | 11:bdbd3104995b | 174 | * @par Details |
| fneirab | 11:bdbd3104995b | 175 | * This function wites and verifies if the writing process was successful |
| fneirab | 11:bdbd3104995b | 176 | * |
| fneirab | 11:bdbd3104995b | 177 | * @param[in] reg_addr - register address |
| fneirab | 11:bdbd3104995b | 178 | * @param[out] reg_data - the variable that contains the data to write |
| fneirab | 11:bdbd3104995b | 179 | * to the register address |
| fneirab | 11:bdbd3104995b | 180 | * |
| fneirab | 11:bdbd3104995b | 181 | * @retval 0 on success |
| fneirab | 11:bdbd3104995b | 182 | * @retval non-0 for errors |
| fneirab | 11:bdbd3104995b | 183 | */ |
| fneirab | 5:a18a189588dc | 184 | int MAX17055::write_and_verify_reg(Registers_e reg_addr, uint16_t reg_data) |
| fneirab | 5:a18a189588dc | 185 | { |
| fneirab | 1:a031f0c6a71e | 186 | int retries = 8; |
| fneirab | 1:a031f0c6a71e | 187 | int ret; |
| fneirab | 1:a031f0c6a71e | 188 | int statusRead; |
| fneirab | 1:a031f0c6a71e | 189 | int statusWrite; |
| fneirab | 1:a031f0c6a71e | 190 | uint16_t read_data; |
| fneirab | 5:a18a189588dc | 191 | |
| fneirab | 1:a031f0c6a71e | 192 | do { |
| fneirab | 1:a031f0c6a71e | 193 | statusWrite = writeReg(reg_addr, reg_data); |
| fneirab | 11:bdbd3104995b | 194 | if (statusWrite != F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 195 | ret = F_ERROR_1; |
| fneirab | 1:a031f0c6a71e | 196 | wait_ms(3); |
| fneirab | 5:a18a189588dc | 197 | statusRead = readReg(reg_addr, read_data); |
| fneirab | 11:bdbd3104995b | 198 | if (statusRead != F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 199 | ret = F_ERROR_1; |
| fneirab | 5:a18a189588dc | 200 | if (read_data != reg_data) { |
| fneirab | 11:bdbd3104995b | 201 | ret = F_ERROR_1; |
| fneirab | 1:a031f0c6a71e | 202 | retries--; |
| fneirab | 1:a031f0c6a71e | 203 | } |
| fneirab | 5:a18a189588dc | 204 | } while (retries && read_data != reg_data); |
| fneirab | 5:a18a189588dc | 205 | |
| fneirab | 11:bdbd3104995b | 206 | if (ret!=F_SUCCESS_0) |
| fneirab | 1:a031f0c6a71e | 207 | return ret; |
| fneirab | 7:479a36909ced | 208 | else |
| fneirab | 11:bdbd3104995b | 209 | return F_SUCCESS_0; |
| fneirab | 1:a031f0c6a71e | 210 | } |
| fneirab | 2:ff7db397b70f | 211 | |
| fneirab | 2:ff7db397b70f | 212 | /** |
| fneirab | 11:bdbd3104995b | 213 | * @brief Initialization Function for MAX17055. |
| fneirab | 11:bdbd3104995b | 214 | * @par Details |
| fneirab | 11:bdbd3104995b | 215 | * This function intitializes the MAX17055 for the implementation of the EZconfig model.\n |
| fneirab | 11:bdbd3104995b | 216 | * The libraty needs to be customized for the implementation of customize model.\n |
| fneirab | 11:bdbd3104995b | 217 | * |
| fneirab | 11:bdbd3104995b | 218 | * @retval 0 on success |
| fneirab | 11:bdbd3104995b | 219 | * @retval non-0 for errors |
| fneirab | 11:bdbd3104995b | 220 | */ |
| fneirab | 7:479a36909ced | 221 | int MAX17055::init(platform_data des_data) |
| fneirab | 2:ff7db397b70f | 222 | { |
| fneirab | 6:5ced10109ebf | 223 | |
| fneirab | 5:a18a189588dc | 224 | int status, ret; |
| fneirab | 9:f29d5e49b190 | 225 | int time_out = 10; |
| fneirab | 7:479a36909ced | 226 | uint16_t read_data, hibcfg_value, reg; |
| fneirab | 5:a18a189588dc | 227 | |
| fneirab | 5:a18a189588dc | 228 | |
| fneirab | 7:479a36909ced | 229 | status = readReg(VERSION_REG, read_data); |
| fneirab | 11:bdbd3104995b | 230 | if (status != F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 231 | return status; |
| fneirab | 5:a18a189588dc | 232 | |
| fneirab | 2:ff7db397b70f | 233 | /* Step 0: Check for POR */ |
| fneirab | 2:ff7db397b70f | 234 | /* Skip load model if POR bit is cleared */ |
| fneirab | 5:a18a189588dc | 235 | |
| fneirab | 11:bdbd3104995b | 236 | if (check_POR_func() == F_ERROR_5) |
| fneirab | 11:bdbd3104995b | 237 | return F_ERROR_5; //POR not detected. Skip Initialization. |
| fneirab | 2:ff7db397b70f | 238 | |
| fneirab | 2:ff7db397b70f | 239 | /* Step 1: Check if FStat.DNR == 0 */ |
| fneirab | 3:f77a8345b0e3 | 240 | // Do not continue until FSTAT.DNR == 0 |
| fneirab | 7:479a36909ced | 241 | ret = poll_flag_clear(FSTAT_REG, MAX17055_FSTAT_DNR, time_out); |
| fneirab | 11:bdbd3104995b | 242 | if (ret < F_SUCCESS_0) { |
| fneirab | 9:f29d5e49b190 | 243 | //printf("Unsuccessful init: Data Not Ready!\n"); |
| fneirab | 6:5ced10109ebf | 244 | return ret; |
| fneirab | 3:f77a8345b0e3 | 245 | } |
| fneirab | 5:a18a189588dc | 246 | |
| fneirab | 5:a18a189588dc | 247 | /* Force exit from hibernate */ |
| fneirab | 5:a18a189588dc | 248 | hibcfg_value = forcedExitHyberMode(); |
| fneirab | 7:479a36909ced | 249 | |
| fneirab | 9:f29d5e49b190 | 250 | //printf("step 1 check \r\n"); |
| fneirab | 5:a18a189588dc | 251 | |
| fneirab | 5:a18a189588dc | 252 | /* Step 2: Initialize configuration */ |
| fneirab | 5:a18a189588dc | 253 | switch (1) { |
| fneirab | 5:a18a189588dc | 254 | case MODEL_LOADING_OPTION1: |
| fneirab | 5:a18a189588dc | 255 | /* Step 2.1: Option 1 EZ Config */ |
| fneirab | 7:479a36909ced | 256 | EZconfig_init(des_data); |
| fneirab | 5:a18a189588dc | 257 | |
| fneirab | 5:a18a189588dc | 258 | /* Poll ModelCFG.ModelRefresh bit for clear */ |
| fneirab | 7:479a36909ced | 259 | ret = poll_flag_clear(MODELCFG_REG, MAX17055_MODELCFG_REFRESH, time_out); |
| fneirab | 11:bdbd3104995b | 260 | if(ret < F_SUCCESS_0) { |
| fneirab | 5:a18a189588dc | 261 | //dev_err(priv->dev, "Option1 model refresh not completed!\n"); |
| fneirab | 5:a18a189588dc | 262 | return ret; |
| fneirab | 5:a18a189588dc | 263 | } |
| fneirab | 7:479a36909ced | 264 | |
| fneirab | 9:f29d5e49b190 | 265 | break; |
| fneirab | 5:a18a189588dc | 266 | } |
| fneirab | 5:a18a189588dc | 267 | /* Restore original HibCfg */ |
| fneirab | 7:479a36909ced | 268 | writeReg(HIBCFG_REG, hibcfg_value); |
| fneirab | 9:f29d5e49b190 | 269 | //printf("Last section check \r\n"); |
| fneirab | 6:5ced10109ebf | 270 | |
| fneirab | 5:a18a189588dc | 271 | |
| fneirab | 5:a18a189588dc | 272 | /* Optional step - alert threshold initialization */ |
| fneirab | 7:479a36909ced | 273 | //set_alert_thresholds(priv); |
| fneirab | 5:a18a189588dc | 274 | |
| fneirab | 5:a18a189588dc | 275 | /* Clear Status.POR */ |
| fneirab | 9:f29d5e49b190 | 276 | ret = clear_POR_bit(); |
| fneirab | 11:bdbd3104995b | 277 | if (ret < F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 278 | return ret; //See errors |
| fneirab | 11:bdbd3104995b | 279 | return F_SUCCESS_0; |
| fneirab | 5:a18a189588dc | 280 | } |
| fneirab | 5:a18a189588dc | 281 | |
| fneirab | 9:f29d5e49b190 | 282 | /** |
| fneirab | 11:bdbd3104995b | 283 | * @brief Check POR function |
| fneirab | 11:bdbd3104995b | 284 | * @par Details |
| fneirab | 11:bdbd3104995b | 285 | * This function check is there was a power on reset event for the |
| fneirab | 11:bdbd3104995b | 286 | * MAX17055 |
| fneirab | 11:bdbd3104995b | 287 | * |
| fneirab | 11:bdbd3104995b | 288 | * @retval 0 on success (POR detected) |
| fneirab | 11:bdbd3104995b | 289 | * @retval non-0 for errors (POR not detected) |
| fneirab | 11:bdbd3104995b | 290 | * |
| fneirab | 11:bdbd3104995b | 291 | */ |
| fneirab | 9:f29d5e49b190 | 292 | int MAX17055::check_POR_func() |
| fneirab | 9:f29d5e49b190 | 293 | { |
| fneirab | 9:f29d5e49b190 | 294 | uint16_t read_data; |
| fneirab | 9:f29d5e49b190 | 295 | |
| fneirab | 9:f29d5e49b190 | 296 | readReg(STATUS_REG, read_data); |
| fneirab | 9:f29d5e49b190 | 297 | |
| fneirab | 9:f29d5e49b190 | 298 | if (!(read_data & MAX17055_STATUS_POR ) ) |
| fneirab | 11:bdbd3104995b | 299 | return F_ERROR_5; //POR not detected. |
| fneirab | 9:f29d5e49b190 | 300 | else |
| fneirab | 11:bdbd3104995b | 301 | return F_SUCCESS_0; |
| fneirab | 9:f29d5e49b190 | 302 | } |
| fneirab | 9:f29d5e49b190 | 303 | |
| fneirab | 9:f29d5e49b190 | 304 | /** |
| fneirab | 11:bdbd3104995b | 305 | * @brief clear POR bit function |
| fneirab | 11:bdbd3104995b | 306 | * @par Details |
| fneirab | 11:bdbd3104995b | 307 | * This function clear the idicating bit for POR - MAX17055 |
| fneirab | 11:bdbd3104995b | 308 | * |
| fneirab | 11:bdbd3104995b | 309 | * @retval 0 for Success |
| fneirab | 11:bdbd3104995b | 310 | * @retval non-0 for errors |
| fneirab | 11:bdbd3104995b | 311 | */ |
| fneirab | 9:f29d5e49b190 | 312 | int MAX17055::clear_POR_bit() |
| fneirab | 9:f29d5e49b190 | 313 | { |
| fneirab | 9:f29d5e49b190 | 314 | int status, ret; |
| fneirab | 9:f29d5e49b190 | 315 | uint16_t read_data, hibcfg_value, reg; |
| fneirab | 9:f29d5e49b190 | 316 | |
| fneirab | 9:f29d5e49b190 | 317 | |
| fneirab | 9:f29d5e49b190 | 318 | status = readReg(STATUS_REG, read_data); |
| fneirab | 11:bdbd3104995b | 319 | if (status != F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 320 | return F_ERROR_2; //Device is not present in the i2c Bus |
| fneirab | 9:f29d5e49b190 | 321 | status = write_and_verify_reg(STATUS_REG, (read_data & MAX17055_POR_MASK)); |
| fneirab | 11:bdbd3104995b | 322 | if (status != F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 323 | return F_ERROR_1; //read or write error |
| fneirab | 9:f29d5e49b190 | 324 | else |
| fneirab | 11:bdbd3104995b | 325 | return F_SUCCESS_0; |
| fneirab | 9:f29d5e49b190 | 326 | } |
| fneirab | 5:a18a189588dc | 327 | |
| fneirab | 5:a18a189588dc | 328 | /** |
| fneirab | 11:bdbd3104995b | 329 | * @brief Poll Flag clear Function. |
| fneirab | 11:bdbd3104995b | 330 | * @par Details |
| fneirab | 11:bdbd3104995b | 331 | * This function clears status flags for the MAX17055 |
| fneirab | 11:bdbd3104995b | 332 | * |
| fneirab | 11:bdbd3104995b | 333 | * @param[in] reg_addr - register address |
| fneirab | 11:bdbd3104995b | 334 | * @param[in] mask - register address |
| fneirab | 11:bdbd3104995b | 335 | * @param[in] timeout - register data |
| fneirab | 11:bdbd3104995b | 336 | * |
| fneirab | 11:bdbd3104995b | 337 | * @retval 0 on success |
| fneirab | 11:bdbd3104995b | 338 | * @retval non-0 negative for errors |
| fneirab | 11:bdbd3104995b | 339 | */ |
| fneirab | 7:479a36909ced | 340 | int MAX17055::poll_flag_clear (Registers_e reg_addr, int mask, int timeout) |
| fneirab | 5:a18a189588dc | 341 | { |
| fneirab | 5:a18a189588dc | 342 | uint16_t data; |
| fneirab | 5:a18a189588dc | 343 | int ret; |
| fneirab | 5:a18a189588dc | 344 | |
| fneirab | 5:a18a189588dc | 345 | do { |
| fneirab | 9:f29d5e49b190 | 346 | wait_ms(1); |
| fneirab | 6:5ced10109ebf | 347 | ret = readReg(reg_addr, data); |
| fneirab | 11:bdbd3104995b | 348 | if(ret < F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 349 | return F_ERROR_1; |
| fneirab | 5:a18a189588dc | 350 | |
| fneirab | 5:a18a189588dc | 351 | if(!(data & mask)) |
| fneirab | 11:bdbd3104995b | 352 | return F_SUCCESS_0; |
| fneirab | 5:a18a189588dc | 353 | |
| fneirab | 9:f29d5e49b190 | 354 | timeout -= 1; |
| fneirab | 5:a18a189588dc | 355 | } while(timeout > 0); |
| fneirab | 5:a18a189588dc | 356 | |
| fneirab | 11:bdbd3104995b | 357 | return F_ERROR_4; |
| fneirab | 5:a18a189588dc | 358 | } |
| fneirab | 5:a18a189588dc | 359 | |
| fneirab | 2:ff7db397b70f | 360 | /** |
| fneirab | 11:bdbd3104995b | 361 | * @brief Get Temperature Function from the MAX17055 TEMP register. |
| fneirab | 11:bdbd3104995b | 362 | * @par Details |
| fneirab | 11:bdbd3104995b | 363 | * This function sends a request to access the TEMP register |
| fneirab | 11:bdbd3104995b | 364 | * of the MAX17055, which reflects the temperature measured for the fuel gauge. |
| fneirab | 11:bdbd3104995b | 365 | * The temperature values will reflect the Config Register (0x1D) selections for Tsel bit (D15). |
| fneirab | 11:bdbd3104995b | 366 | * For this library the setting are for die temperature. |
| fneirab | 11:bdbd3104995b | 367 | * The MAX32620FTHR thermistor bias pin is not connected. The biasing of the thermistor is |
| fneirab | 11:bdbd3104995b | 368 | * done by the MAX77650. See MAX77650 library for how to enable the thermistor biasing. |
| fneirab | 11:bdbd3104995b | 369 | * |
| fneirab | 11:bdbd3104995b | 370 | * |
| fneirab | 11:bdbd3104995b | 371 | * @retval temp - Temperature value from TEMP register in °C |
| fneirab | 11:bdbd3104995b | 372 | * @retval non-0 negative values check for errors |
| fneirab | 11:bdbd3104995b | 373 | */ |
| fneirab | 7:479a36909ced | 374 | int MAX17055::get_temperature() |
| fneirab | 2:ff7db397b70f | 375 | { |
| fneirab | 5:a18a189588dc | 376 | |
| fneirab | 2:ff7db397b70f | 377 | int ret; |
| fneirab | 11:bdbd3104995b | 378 | uint16_t temp; |
| fneirab | 5:a18a189588dc | 379 | |
| fneirab | 11:bdbd3104995b | 380 | ret = readReg(TEMP_REG, temp); |
| fneirab | 11:bdbd3104995b | 381 | if (ret < F_SUCCESS_0) |
| fneirab | 2:ff7db397b70f | 382 | return ret; |
| fneirab | 2:ff7db397b70f | 383 | |
| fneirab | 2:ff7db397b70f | 384 | /* The value is signed. */ |
| fneirab | 11:bdbd3104995b | 385 | if (temp & 0x8000) |
| fneirab | 11:bdbd3104995b | 386 | temp |= 0xFFFF0000; |
| fneirab | 2:ff7db397b70f | 387 | |
| fneirab | 2:ff7db397b70f | 388 | /* The value is converted into centigrade scale */ |
| fneirab | 2:ff7db397b70f | 389 | /* Units of LSB = 1 / 256 degree Celsius */ |
| fneirab | 11:bdbd3104995b | 390 | temp >>= 8; |
| fneirab | 2:ff7db397b70f | 391 | |
| fneirab | 11:bdbd3104995b | 392 | return temp; |
| fneirab | 5:a18a189588dc | 393 | } |
| fneirab | 3:f77a8345b0e3 | 394 | |
| fneirab | 3:f77a8345b0e3 | 395 | /** |
| fneirab | 11:bdbd3104995b | 396 | * @brief Forced Exit Hibernate Mode Function for MAX17055 |
| fneirab | 11:bdbd3104995b | 397 | * @par Details |
| fneirab | 11:bdbd3104995b | 398 | * This function executes a force exit from hibernate mode. |
| fneirab | 11:bdbd3104995b | 399 | * |
| fneirab | 11:bdbd3104995b | 400 | * @retval HibCFG original value before forced Exit Hybernate mode * |
| fneirab | 11:bdbd3104995b | 401 | */ |
| fneirab | 3:f77a8345b0e3 | 402 | uint16_t MAX17055::forcedExitHyberMode() |
| fneirab | 3:f77a8345b0e3 | 403 | { |
| fneirab | 3:f77a8345b0e3 | 404 | uint16_t hibcfg; |
| fneirab | 5:a18a189588dc | 405 | |
| fneirab | 5:a18a189588dc | 406 | /* Force exit from hibernate */ |
| fneirab | 3:f77a8345b0e3 | 407 | //STEP 0: Store original HibCFG value |
| fneirab | 7:479a36909ced | 408 | readReg(HIBCFG_REG, hibcfg); |
| fneirab | 3:f77a8345b0e3 | 409 | |
| fneirab | 3:f77a8345b0e3 | 410 | //STEP 1: Write to Soft-Wakeup Commannd Register |
| fneirab | 7:479a36909ced | 411 | writeReg(VFSOC0_QH0_LOCK_REG, 0x90); //Soft-Wakeup from hybernate |
| fneirab | 5:a18a189588dc | 412 | |
| fneirab | 3:f77a8345b0e3 | 413 | //STEP 2: Write to Hibernate Configuration register |
| fneirab | 7:479a36909ced | 414 | writeReg(HIBCFG_REG, 0x0); //disable hibernate mode |
| fneirab | 5:a18a189588dc | 415 | |
| fneirab | 3:f77a8345b0e3 | 416 | //STEP 3:Write to Soft-Wakeup Commannd Register |
| fneirab | 7:479a36909ced | 417 | writeReg(VFSOC0_QH0_LOCK_REG, 0x0); //Clear All commnads |
| fneirab | 5:a18a189588dc | 418 | |
| fneirab | 3:f77a8345b0e3 | 419 | return hibcfg; |
| fneirab | 5:a18a189588dc | 420 | } |
| fneirab | 7:479a36909ced | 421 | |
| fneirab | 7:479a36909ced | 422 | /** |
| fneirab | 11:bdbd3104995b | 423 | * @brief EZ Confing Initialization function |
| fneirab | 11:bdbd3104995b | 424 | * @par Details |
| fneirab | 11:bdbd3104995b | 425 | * This function implements the steps for the EZ confing m5 FuelGauge |
| fneirab | 11:bdbd3104995b | 426 | * @param[in] des_data - Plataform_data struct with information about the deisgn. |
| fneirab | 11:bdbd3104995b | 427 | * @retval 0 on success |
| fneirab | 11:bdbd3104995b | 428 | * @retval non-zero for errors |
| fneirab | 11:bdbd3104995b | 429 | */ |
| fneirab | 7:479a36909ced | 430 | uint16_t MAX17055::EZconfig_init(platform_data des_data) |
| fneirab | 7:479a36909ced | 431 | { |
| fneirab | 11:bdbd3104995b | 432 | ///EZ config values |
| fneirab | 7:479a36909ced | 433 | const int charger_th = 4275; |
| fneirab | 7:479a36909ced | 434 | const int chg_V_high = 51200; |
| fneirab | 7:479a36909ced | 435 | const int chg_V_low = 44138; |
| fneirab | 7:479a36909ced | 436 | const int param_EZ_FG1 = 0x8400; |
| fneirab | 7:479a36909ced | 437 | const int param_EZ_FG2 = 0x8000; |
| fneirab | 8:ca8765c30ed2 | 438 | uint16_t dpacc, ret; |
| fneirab | 7:479a36909ced | 439 | |
| fneirab | 7:479a36909ced | 440 | /* Step 2.1: Option 1 EZ Config */ |
| fneirab | 9:f29d5e49b190 | 441 | ret = writeReg(DESIGNCAP_REG, des_data.designcap); |
| fneirab | 11:bdbd3104995b | 442 | ret = writeReg(DQACC_REG, des_data.designcap >> 5); ///DesignCap divide by 32 |
| fneirab | 9:f29d5e49b190 | 443 | ret = writeReg(ICHGTERM_REG, des_data.ichgterm); |
| fneirab | 9:f29d5e49b190 | 444 | ret = writeReg(VEMPTY_REG, des_data.vempty); |
| fneirab | 7:479a36909ced | 445 | |
| fneirab | 7:479a36909ced | 446 | if (des_data.vcharge > charger_th) { |
| fneirab | 7:479a36909ced | 447 | dpacc = (des_data.designcap >> 5) * chg_V_high / des_data.designcap; |
| fneirab | 9:f29d5e49b190 | 448 | ret = writeReg(DPACC_REG, dpacc); |
| fneirab | 11:bdbd3104995b | 449 | ret = writeReg(MODELCFG_REG, param_EZ_FG1); ///Why 0x8400?? |
| fneirab | 7:479a36909ced | 450 | } else { |
| fneirab | 7:479a36909ced | 451 | dpacc = (des_data.designcap >> 5) * chg_V_low / des_data.designcap; |
| fneirab | 9:f29d5e49b190 | 452 | ret = writeReg(DPACC_REG, dpacc); |
| fneirab | 9:f29d5e49b190 | 453 | ret = writeReg(MODELCFG_REG, param_EZ_FG2); |
| fneirab | 7:479a36909ced | 454 | } |
| fneirab | 7:479a36909ced | 455 | return ret; |
| fneirab | 7:479a36909ced | 456 | } |
| fneirab | 7:479a36909ced | 457 | |
| fneirab | 7:479a36909ced | 458 | /** |
| fneirab | 11:bdbd3104995b | 459 | * @brief Get reported State Of Charge(SOC) Function from MAX17055 Fuel Gauge. |
| fneirab | 11:bdbd3104995b | 460 | * @par Details |
| fneirab | 11:bdbd3104995b | 461 | * This function sends a request to access the RepSOC register |
| fneirab | 11:bdbd3104995b | 462 | * of the MAX17055. RepSOC is the reported state-of-charge percentage output of the fuel gauge. |
| fneirab | 11:bdbd3104995b | 463 | * |
| fneirab | 11:bdbd3104995b | 464 | * @retval soc_data - Reported SOC data from the RepSOC register in % value. |
| fneirab | 11:bdbd3104995b | 465 | * @retval non-0 negative values check for errors |
| fneirab | 11:bdbd3104995b | 466 | */ |
| fneirab | 7:479a36909ced | 467 | int MAX17055::get_SOC() |
| fneirab | 7:479a36909ced | 468 | { |
| fneirab | 7:479a36909ced | 469 | |
| fneirab | 7:479a36909ced | 470 | int ret; |
| fneirab | 11:bdbd3104995b | 471 | uint16_t soc_data; |
| fneirab | 7:479a36909ced | 472 | |
| fneirab | 11:bdbd3104995b | 473 | ret = readReg(REPSOC_REG, soc_data); |
| fneirab | 11:bdbd3104995b | 474 | if (ret < F_SUCCESS_0) |
| fneirab | 7:479a36909ced | 475 | return ret; |
| fneirab | 7:479a36909ced | 476 | |
| fneirab | 11:bdbd3104995b | 477 | soc_data = soc_data >> 8; /* RepSOC LSB: 1/256 % */ |
| fneirab | 7:479a36909ced | 478 | |
| fneirab | 11:bdbd3104995b | 479 | return soc_data; |
| fneirab | 7:479a36909ced | 480 | } |
| fneirab | 7:479a36909ced | 481 | |
| fneirab | 8:ca8765c30ed2 | 482 | /** |
| fneirab | 11:bdbd3104995b | 483 | * @brief Get Average State Of Charge(SOC) Function from MAX17055 Fuel Gauge. |
| fneirab | 11:bdbd3104995b | 484 | * @par Details |
| fneirab | 11:bdbd3104995b | 485 | * This function sends a request to access the avSOC register of the MAX17055. |
| fneirab | 11:bdbd3104995b | 486 | * The AvSOC registers hold the calculated available capacity and percentage of the |
| fneirab | 11:bdbd3104995b | 487 | * battery based on all inputs from the ModelGauge m5 algorithm including empty |
| fneirab | 11:bdbd3104995b | 488 | * compensation. These registers provide unfiltered results. Jumps in the reported |
| fneirab | 11:bdbd3104995b | 489 | * values can be caused by abrupt changes in load current or temperature. |
| fneirab | 11:bdbd3104995b | 490 | * |
| fneirab | 11:bdbd3104995b | 491 | * @retval avSOC_data - Average SOC data from the AVSOC register in % value. |
| fneirab | 11:bdbd3104995b | 492 | * @retval non-0 negative values check for errors |
| fneirab | 11:bdbd3104995b | 493 | */ |
| fneirab | 8:ca8765c30ed2 | 494 | int MAX17055::get_avSOC() |
| fneirab | 8:ca8765c30ed2 | 495 | { |
| fneirab | 8:ca8765c30ed2 | 496 | |
| fneirab | 8:ca8765c30ed2 | 497 | int ret; |
| fneirab | 11:bdbd3104995b | 498 | uint16_t avSOC_data; |
| fneirab | 8:ca8765c30ed2 | 499 | |
| fneirab | 11:bdbd3104995b | 500 | ret = readReg(AVSOC_REG, avSOC_data); |
| fneirab | 11:bdbd3104995b | 501 | if (ret < F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 502 | return ret; //Check errors if data is not correct |
| fneirab | 8:ca8765c30ed2 | 503 | |
| fneirab | 11:bdbd3104995b | 504 | avSOC_data = avSOC_data >> 8; /* avSOC LSB: 1/256 % */ |
| fneirab | 11:bdbd3104995b | 505 | |
| fneirab | 11:bdbd3104995b | 506 | return avSOC_data; |
| fneirab | 8:ca8765c30ed2 | 507 | } |
| fneirab | 7:479a36909ced | 508 | |
| fneirab | 9:f29d5e49b190 | 509 | /** |
| fneirab | 11:bdbd3104995b | 510 | * @brief Get mix State Of Charge(SOC) Function for MAX17055 Fuel Gauge. |
| fneirab | 11:bdbd3104995b | 511 | * @par Details |
| fneirab | 11:bdbd3104995b | 512 | * This function sends a request to access mixSOC register |
| fneirab | 11:bdbd3104995b | 513 | * of the MAX17055. The MixSOC registers holds the calculated |
| fneirab | 11:bdbd3104995b | 514 | * remaining capacity and percentage of the cell before any empty compensation |
| fneirab | 11:bdbd3104995b | 515 | * adjustments are performed. |
| fneirab | 11:bdbd3104995b | 516 | * |
| fneirab | 11:bdbd3104995b | 517 | * @retval mixSOC_data - Mixed SOC register values from the mixSOC register in % value. |
| fneirab | 11:bdbd3104995b | 518 | * @retval non-0 for errors |
| fneirab | 11:bdbd3104995b | 519 | */ |
| fneirab | 11:bdbd3104995b | 520 | int MAX17055::get_mixSOC() |
| fneirab | 11:bdbd3104995b | 521 | { |
| fneirab | 11:bdbd3104995b | 522 | int ret; |
| fneirab | 11:bdbd3104995b | 523 | uint16_t mixSOC_data; |
| fneirab | 11:bdbd3104995b | 524 | |
| fneirab | 11:bdbd3104995b | 525 | ret = readReg(MIXSOC_REG, mixSOC_data); |
| fneirab | 11:bdbd3104995b | 526 | if (ret < F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 527 | return ret; |
| fneirab | 9:f29d5e49b190 | 528 | |
| fneirab | 11:bdbd3104995b | 529 | mixSOC_data = mixSOC_data >> 8; /* RepSOC LSB: 1/256 % */ |
| fneirab | 9:f29d5e49b190 | 530 | |
| fneirab | 11:bdbd3104995b | 531 | return mixSOC_data; |
| fneirab | 11:bdbd3104995b | 532 | } |
| fneirab | 11:bdbd3104995b | 533 | |
| fneirab | 11:bdbd3104995b | 534 | /** |
| fneirab | 11:bdbd3104995b | 535 | * @brief Get the Time to Empty(TTE) Function form MAX17055 Fuel Gauge. |
| fneirab | 11:bdbd3104995b | 536 | * @par Details |
| fneirab | 11:bdbd3104995b | 537 | * This function sends a request to access the TTE register |
| fneirab | 11:bdbd3104995b | 538 | * of the MAX17055 |
| fneirab | 11:bdbd3104995b | 539 | * The TTE register holds the estimated time to empty for the |
| fneirab | 11:bdbd3104995b | 540 | * application under present temperature and load conditions. The TTE value is |
| fneirab | 11:bdbd3104995b | 541 | * determined by relating AvCap with AvgCurrent. The corresponding AvgCurrent |
| fneirab | 11:bdbd3104995b | 542 | * filtering gives a delay in TTE, but provides more stable results. |
| fneirab | 11:bdbd3104995b | 543 | * |
| fneirab | 11:bdbd3104995b | 544 | * @retval tte_data - Time to Empty data from the TTE register in seconds. |
| fneirab | 11:bdbd3104995b | 545 | * @retval non-0 negative values check for errors |
| fneirab | 11:bdbd3104995b | 546 | */ |
| fneirab | 11:bdbd3104995b | 547 | int MAX17055::get_TTE() |
| fneirab | 9:f29d5e49b190 | 548 | { |
| fneirab | 9:f29d5e49b190 | 549 | |
| fneirab | 9:f29d5e49b190 | 550 | int ret; |
| fneirab | 11:bdbd3104995b | 551 | uint16_t tte_data; |
| fneirab | 9:f29d5e49b190 | 552 | |
| fneirab | 11:bdbd3104995b | 553 | ret = readReg(TTE_REG, tte_data); |
| fneirab | 11:bdbd3104995b | 554 | if (ret < F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 555 | return ret; |
| fneirab | 11:bdbd3104995b | 556 | else |
| fneirab | 11:bdbd3104995b | 557 | tte_data = (tte_data * 45) >> 3; /* TTE LSB: 5.625 sec */ |
| fneirab | 9:f29d5e49b190 | 558 | |
| fneirab | 11:bdbd3104995b | 559 | return tte_data; |
| fneirab | 9:f29d5e49b190 | 560 | } |
| fneirab | 7:479a36909ced | 561 | |
| fneirab | 7:479a36909ced | 562 | /** |
| fneirab | 11:bdbd3104995b | 563 | * @brief Get the at Time to Empty(atTTE) value Function for MAX17055 Fuel Gauge. |
| fneirab | 11:bdbd3104995b | 564 | * @par Details |
| fneirab | 11:bdbd3104995b | 565 | * This function sends a request to access the internal register |
| fneirab | 11:bdbd3104995b | 566 | * of the MAX17055 |
| fneirab | 11:bdbd3104995b | 567 | * |
| fneirab | 11:bdbd3104995b | 568 | * @retval atTTE_data - Time to Empty data from the atTTE register in seconds. |
| fneirab | 11:bdbd3104995b | 569 | * @retval non-0 negative values check for errors |
| fneirab | 11:bdbd3104995b | 570 | */ |
| fneirab | 9:f29d5e49b190 | 571 | int MAX17055::get_atTTE() |
| fneirab | 7:479a36909ced | 572 | { |
| fneirab | 7:479a36909ced | 573 | |
| fneirab | 7:479a36909ced | 574 | int ret; |
| fneirab | 11:bdbd3104995b | 575 | uint16_t atTTE_data; |
| fneirab | 7:479a36909ced | 576 | |
| fneirab | 11:bdbd3104995b | 577 | ret = readReg(ATTTE_REG, atTTE_data); |
| fneirab | 11:bdbd3104995b | 578 | if (ret < F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 579 | return ret; //Check for errors |
| fneirab | 7:479a36909ced | 580 | else |
| fneirab | 11:bdbd3104995b | 581 | atTTE_data = (atTTE_data * 45) >> 3; /* TTE LSB: 5.625 sec */ |
| fneirab | 7:479a36909ced | 582 | |
| fneirab | 11:bdbd3104995b | 583 | return atTTE_data; |
| fneirab | 7:479a36909ced | 584 | } |
| fneirab | 7:479a36909ced | 585 | |
| fneirab | 8:ca8765c30ed2 | 586 | /** |
| fneirab | 11:bdbd3104995b | 587 | * @brief Get the Time to Full(TTE) values Function for MAX17055 Fuel Gauge. |
| fneirab | 11:bdbd3104995b | 588 | * @par Details |
| fneirab | 11:bdbd3104995b | 589 | * This function sends a request to access the internal register of the MAX17055 |
| fneirab | 11:bdbd3104995b | 590 | * The TTF register holds the estimated time to full for the application |
| fneirab | 11:bdbd3104995b | 591 | * under present conditions. The TTF value is determined by learning the |
| fneirab | 11:bdbd3104995b | 592 | * constant current and constant voltage portions of the charge cycle based |
| fneirab | 11:bdbd3104995b | 593 | * on experience of prior charge cycles. Time to full is then estimate |
| fneirab | 11:bdbd3104995b | 594 | * by comparing present charge current to the charge termination current. |
| fneirab | 11:bdbd3104995b | 595 | * Operation of the TTF register assumes all charge profiles are consistent in the application. |
| fneirab | 11:bdbd3104995b | 596 | * |
| fneirab | 11:bdbd3104995b | 597 | * @retval ttf_data - Time to Full data from the TTF register in seconds. |
| fneirab | 11:bdbd3104995b | 598 | * @retval non-0 negative values check for errors |
| fneirab | 11:bdbd3104995b | 599 | */ |
| fneirab | 8:ca8765c30ed2 | 600 | int MAX17055::get_TTF() |
| fneirab | 8:ca8765c30ed2 | 601 | { |
| fneirab | 8:ca8765c30ed2 | 602 | |
| fneirab | 8:ca8765c30ed2 | 603 | int ret; |
| fneirab | 8:ca8765c30ed2 | 604 | uint16_t ttf_data; |
| fneirab | 8:ca8765c30ed2 | 605 | |
| fneirab | 8:ca8765c30ed2 | 606 | ret = readReg(TTF_REG, ttf_data); |
| fneirab | 11:bdbd3104995b | 607 | if (ret < F_SUCCESS_0) |
| fneirab | 8:ca8765c30ed2 | 608 | return ret; |
| fneirab | 8:ca8765c30ed2 | 609 | else |
| fneirab | 8:ca8765c30ed2 | 610 | ttf_data = (ttf_data * 45) >> 3; /* TTF LSB: 5.625 sec */ |
| fneirab | 8:ca8765c30ed2 | 611 | |
| fneirab | 8:ca8765c30ed2 | 612 | return ttf_data; |
| fneirab | 8:ca8765c30ed2 | 613 | } |
| fneirab | 7:479a36909ced | 614 | |
| fneirab | 7:479a36909ced | 615 | /** |
| fneirab | 11:bdbd3104995b | 616 | * @brief Get voltage of the cell Function for MAX17055 Fuel Gauge. |
| fneirab | 11:bdbd3104995b | 617 | * @par Details |
| fneirab | 11:bdbd3104995b | 618 | * This function sends a request to access the VCell Register |
| fneirab | 11:bdbd3104995b | 619 | * of the MAX17055 to read the measured voltage from the cell. |
| fneirab | 11:bdbd3104995b | 620 | * |
| fneirab | 11:bdbd3104995b | 621 | * @retval vcell_data - vcell data from the VCELL_REG register in uVolts. |
| fneirab | 11:bdbd3104995b | 622 | * @retval non-0 negative values check for errors |
| fneirab | 11:bdbd3104995b | 623 | */ |
| fneirab | 7:479a36909ced | 624 | int MAX17055::get_Vcell() |
| fneirab | 7:479a36909ced | 625 | { |
| fneirab | 7:479a36909ced | 626 | |
| fneirab | 7:479a36909ced | 627 | int ret; |
| fneirab | 7:479a36909ced | 628 | uint16_t vcell_data; |
| fneirab | 7:479a36909ced | 629 | |
| fneirab | 7:479a36909ced | 630 | ret = readReg(VCELL_REG, vcell_data); |
| fneirab | 11:bdbd3104995b | 631 | if (ret < F_SUCCESS_0) |
| fneirab | 7:479a36909ced | 632 | return ret; |
| fneirab | 7:479a36909ced | 633 | else |
| fneirab | 7:479a36909ced | 634 | ret = lsb_to_uvolts(vcell_data); |
| fneirab | 7:479a36909ced | 635 | return ret; |
| fneirab | 7:479a36909ced | 636 | } |
| fneirab | 7:479a36909ced | 637 | |
| fneirab | 7:479a36909ced | 638 | /** |
| fneirab | 11:bdbd3104995b | 639 | * @brief Get current Function for MAX17055 Fuel Gauge. |
| fneirab | 11:bdbd3104995b | 640 | * @par Details |
| fneirab | 11:bdbd3104995b | 641 | * This function sends a request to access the CURRENT register |
| fneirab | 11:bdbd3104995b | 642 | * of the MAX17055 to read the current redings. |
| fneirab | 11:bdbd3104995b | 643 | * |
| fneirab | 11:bdbd3104995b | 644 | * @param[in] des_data - Plataform_data struct with information about the deisgn. |
| fneirab | 11:bdbd3104995b | 645 | * |
| fneirab | 11:bdbd3104995b | 646 | * @retval curr_data - current data from the CURRENT register in uAmps. |
| fneirab | 11:bdbd3104995b | 647 | * @retval non-0 negative values check for errors. |
| fneirab | 11:bdbd3104995b | 648 | */ |
| fneirab | 7:479a36909ced | 649 | int MAX17055::get_Current( platform_data des_data ) |
| fneirab | 7:479a36909ced | 650 | { |
| fneirab | 7:479a36909ced | 651 | |
| fneirab | 7:479a36909ced | 652 | int ret,design_rsense; |
| fneirab | 11:bdbd3104995b | 653 | uint16_t curr_data; |
| fneirab | 7:479a36909ced | 654 | |
| fneirab | 11:bdbd3104995b | 655 | ret = readReg(CURRENT_REG, curr_data); |
| fneirab | 11:bdbd3104995b | 656 | if (ret < F_SUCCESS_0) |
| fneirab | 7:479a36909ced | 657 | return ret; |
| fneirab | 7:479a36909ced | 658 | else |
| fneirab | 7:479a36909ced | 659 | design_rsense = des_data.rsense; |
| fneirab | 11:bdbd3104995b | 660 | ret = raw_current_to_uamps((uint32_t)curr_data, design_rsense); |
| fneirab | 7:479a36909ced | 661 | return ret; |
| fneirab | 7:479a36909ced | 662 | } |
| fneirab | 7:479a36909ced | 663 | |
| fneirab | 7:479a36909ced | 664 | /** |
| fneirab | 11:bdbd3104995b | 665 | * @brief Get average current Function for MAX17055 Fuel Gauge. |
| fneirab | 11:bdbd3104995b | 666 | * @par Details |
| fneirab | 11:bdbd3104995b | 667 | * This function sends a request to access the aveCURRENT register |
| fneirab | 11:bdbd3104995b | 668 | * of the MAX17055 to read the average current redings. |
| fneirab | 11:bdbd3104995b | 669 | * |
| fneirab | 11:bdbd3104995b | 670 | * @param[in] des_data - Plataform_data struct with information about the deisgn. |
| fneirab | 11:bdbd3104995b | 671 | * |
| fneirab | 11:bdbd3104995b | 672 | * @retval aveCurr_data - current data from the AVGCURRENT register in uAmps. |
| fneirab | 11:bdbd3104995b | 673 | * @retval non-0 negative values check for errors. |
| fneirab | 11:bdbd3104995b | 674 | */ |
| fneirab | 7:479a36909ced | 675 | int MAX17055::get_AvgCurrent( platform_data des_data ) |
| fneirab | 7:479a36909ced | 676 | { |
| fneirab | 7:479a36909ced | 677 | int ret, design_rsense; |
| fneirab | 7:479a36909ced | 678 | uint16_t data; |
| fneirab | 7:479a36909ced | 679 | uint32_t aveCurr_data; |
| fneirab | 7:479a36909ced | 680 | |
| fneirab | 7:479a36909ced | 681 | ret = readReg(AVGCURRENT_REG, data); |
| fneirab | 11:bdbd3104995b | 682 | if (ret < F_SUCCESS_0) |
| fneirab | 7:479a36909ced | 683 | return ret; |
| fneirab | 7:479a36909ced | 684 | else |
| fneirab | 7:479a36909ced | 685 | aveCurr_data = data; |
| fneirab | 7:479a36909ced | 686 | design_rsense = des_data.rsense; |
| fneirab | 7:479a36909ced | 687 | aveCurr_data = raw_current_to_uamps(aveCurr_data, design_rsense); |
| fneirab | 7:479a36909ced | 688 | return aveCurr_data; |
| fneirab | 7:479a36909ced | 689 | } |
| fneirab | 7:479a36909ced | 690 | |
| fneirab | 7:479a36909ced | 691 | /** |
| fneirab | 11:bdbd3104995b | 692 | * @brief lsb_to_uvolts Converssion Function |
| fneirab | 11:bdbd3104995b | 693 | * @par Details |
| fneirab | 11:bdbd3104995b | 694 | * This function takes the lsb value of the register and convert it |
| fneirab | 11:bdbd3104995b | 695 | * to uvolts |
| fneirab | 11:bdbd3104995b | 696 | * |
| fneirab | 11:bdbd3104995b | 697 | * @param[in] lsb - value of register lsb |
| fneirab | 11:bdbd3104995b | 698 | * @retval conv_2_uvolts - value converted lsb to uvolts |
| fneirab | 11:bdbd3104995b | 699 | */ |
| fneirab | 7:479a36909ced | 700 | int MAX17055:: lsb_to_uvolts(uint16_t lsb) |
| fneirab | 7:479a36909ced | 701 | { |
| fneirab | 11:bdbd3104995b | 702 | int conv_2_uvolts; |
| fneirab | 11:bdbd3104995b | 703 | conv_2_uvolts = (lsb * 625) / 8; /* 78.125uV per bit */ |
| fneirab | 11:bdbd3104995b | 704 | return conv_2_uvolts; |
| fneirab | 7:479a36909ced | 705 | } |
| fneirab | 7:479a36909ced | 706 | |
| fneirab | 7:479a36909ced | 707 | /** |
| fneirab | 11:bdbd3104995b | 708 | * @brief raw_current_to_uamp Converssion Function |
| fneirab | 11:bdbd3104995b | 709 | * @par Details |
| fneirab | 11:bdbd3104995b | 710 | * This function takes the raw current value of the register and |
| fneirab | 11:bdbd3104995b | 711 | * converts it to uamps |
| fneirab | 11:bdbd3104995b | 712 | * |
| fneirab | 11:bdbd3104995b | 713 | * @param[in] curr - raw current value of register |
| fneirab | 11:bdbd3104995b | 714 | * @retval res - converted raw current to uamps (Signed 2's complement) |
| fneirab | 11:bdbd3104995b | 715 | */ |
| fneirab | 7:479a36909ced | 716 | int MAX17055::raw_current_to_uamps(uint32_t curr, int rsense_value) |
| fneirab | 7:479a36909ced | 717 | { |
| fneirab | 7:479a36909ced | 718 | int res = curr; |
| fneirab | 7:479a36909ced | 719 | /* Negative */ |
| fneirab | 7:479a36909ced | 720 | if (res & 0x8000) { |
| fneirab | 7:479a36909ced | 721 | res |= 0xFFFF0000; |
| fneirab | 7:479a36909ced | 722 | } else { |
| fneirab | 11:bdbd3104995b | 723 | res *= 1562500 /(rsense_value * 1000); //Change to interact with the rsense implementen in the design |
| fneirab | 7:479a36909ced | 724 | } |
| fneirab | 7:479a36909ced | 725 | return res; |
| fneirab | 9:f29d5e49b190 | 726 | } |
| fneirab | 9:f29d5e49b190 | 727 | |
| fneirab | 9:f29d5e49b190 | 728 | /** |
| fneirab | 11:bdbd3104995b | 729 | * @brief Save Learned Parameters Function for battery Fuel Gauge model. |
| fneirab | 11:bdbd3104995b | 730 | * @par Details |
| fneirab | 11:bdbd3104995b | 731 | * It is recommended to save the learned capacity parameters every |
| fneirab | 11:bdbd3104995b | 732 | * time bit 2 of the Cycles register toggles |
| fneirab | 11:bdbd3104995b | 733 | * (so that it is saved every 64% change in the battery) |
| fneirab | 11:bdbd3104995b | 734 | * so that if power is lost the values can easily be restored. |
| fneirab | 11:bdbd3104995b | 735 | * |
| fneirab | 11:bdbd3104995b | 736 | * @param[in] FG_params Fuel Gauge Parameters based on design details. |
| fneirab | 11:bdbd3104995b | 737 | * |
| fneirab | 11:bdbd3104995b | 738 | * @retval 0 for success |
| fneirab | 11:bdbd3104995b | 739 | * @retval non-0 negative for errors |
| fneirab | 11:bdbd3104995b | 740 | */ |
| fneirab | 9:f29d5e49b190 | 741 | int MAX17055::save_Params(saved_FG_params_t FG_params) |
| fneirab | 9:f29d5e49b190 | 742 | { |
| fneirab | 11:bdbd3104995b | 743 | int ret, value; |
| fneirab | 9:f29d5e49b190 | 744 | uint16_t data[5]; |
| fneirab | 11:bdbd3104995b | 745 | ///STEP 1. Checks if the cycel register bit 2 has changed. |
| fneirab | 11:bdbd3104995b | 746 | ret = readReg(CYCLES_REG, data[3]); |
| fneirab | 11:bdbd3104995b | 747 | if (ret < F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 748 | return ret; |
| fneirab | 11:bdbd3104995b | 749 | else { |
| fneirab | 11:bdbd3104995b | 750 | value = data[3]; |
| fneirab | 11:bdbd3104995b | 751 | } |
| fneirab | 11:bdbd3104995b | 752 | |
| fneirab | 11:bdbd3104995b | 753 | ///STEP 2.Save the capacity parametes for the specific battery. |
| fneirab | 9:f29d5e49b190 | 754 | ret = readReg(RCOMP0_REG, data[0]); |
| fneirab | 11:bdbd3104995b | 755 | if (ret < F_SUCCESS_0) |
| fneirab | 9:f29d5e49b190 | 756 | return ret; |
| fneirab | 9:f29d5e49b190 | 757 | else |
| fneirab | 9:f29d5e49b190 | 758 | FG_params.rcomp0 = data[0]; |
| fneirab | 9:f29d5e49b190 | 759 | |
| fneirab | 9:f29d5e49b190 | 760 | ret = readReg(TEMPCO_REG, data[1]); |
| fneirab | 11:bdbd3104995b | 761 | if (ret < F_SUCCESS_0) |
| fneirab | 9:f29d5e49b190 | 762 | return ret; |
| fneirab | 9:f29d5e49b190 | 763 | else |
| fneirab | 9:f29d5e49b190 | 764 | FG_params.temp_co = data[1]; |
| fneirab | 9:f29d5e49b190 | 765 | |
| fneirab | 9:f29d5e49b190 | 766 | ret = readReg(FULLCAPREP_REG, data[2]); |
| fneirab | 11:bdbd3104995b | 767 | if (ret < F_SUCCESS_0) |
| fneirab | 9:f29d5e49b190 | 768 | return ret; |
| fneirab | 9:f29d5e49b190 | 769 | else |
| fneirab | 9:f29d5e49b190 | 770 | FG_params.full_cap_rep = data[2]; |
| fneirab | 9:f29d5e49b190 | 771 | |
| fneirab | 11:bdbd3104995b | 772 | FG_params.cycles = data[3]; |
| fneirab | 9:f29d5e49b190 | 773 | |
| fneirab | 9:f29d5e49b190 | 774 | ret = readReg(FULLCAPNOM_REG, data[4]); |
| fneirab | 11:bdbd3104995b | 775 | if (ret < F_SUCCESS_0) |
| fneirab | 9:f29d5e49b190 | 776 | return ret; |
| fneirab | 9:f29d5e49b190 | 777 | else |
| fneirab | 9:f29d5e49b190 | 778 | FG_params.full_cap_nom = data[4]; |
| fneirab | 9:f29d5e49b190 | 779 | return ret; |
| fneirab | 9:f29d5e49b190 | 780 | } |
| fneirab | 9:f29d5e49b190 | 781 | |
| fneirab | 9:f29d5e49b190 | 782 | /** |
| fneirab | 11:bdbd3104995b | 783 | * @brief Resotore Parameters Function for battery Fuel Gauge model. |
| fneirab | 11:bdbd3104995b | 784 | * @par Details |
| fneirab | 11:bdbd3104995b | 785 | * If power is lost, then the capacity information |
| fneirab | 11:bdbd3104995b | 786 | * can be easily restored with this function. |
| fneirab | 11:bdbd3104995b | 787 | * |
| fneirab | 11:bdbd3104995b | 788 | * @param[in] FG_params Struct for Fuel Gauge Parameters |
| fneirab | 11:bdbd3104995b | 789 | * @retval 0 for success |
| fneirab | 11:bdbd3104995b | 790 | * @retval non-0 negative for errors |
| fneirab | 11:bdbd3104995b | 791 | */ |
| fneirab | 9:f29d5e49b190 | 792 | int MAX17055::restore_Params(saved_FG_params_t FG_params) |
| fneirab | 9:f29d5e49b190 | 793 | { |
| fneirab | 9:f29d5e49b190 | 794 | int ret; |
| fneirab | 9:f29d5e49b190 | 795 | uint16_t temp_data, fullcapnom_data, mixCap_calc, dQacc_calc; |
| fneirab | 9:f29d5e49b190 | 796 | uint16_t dPacc_value = 0x0C80;//Why this vcalue? |
| fneirab | 9:f29d5e49b190 | 797 | |
| fneirab | 11:bdbd3104995b | 798 | ///STEP 1. Restoring capacity parameters |
| fneirab | 9:f29d5e49b190 | 799 | write_and_verify_reg(RCOMP0_REG, FG_params.rcomp0); |
| fneirab | 9:f29d5e49b190 | 800 | write_and_verify_reg(TEMPCO_REG, FG_params.temp_co); |
| fneirab | 9:f29d5e49b190 | 801 | write_and_verify_reg(FULLCAPNOM_REG, FG_params.full_cap_nom); |
| fneirab | 9:f29d5e49b190 | 802 | |
| fneirab | 11:bdbd3104995b | 803 | wait_ms(350);//check the type of wait |
| fneirab | 11:bdbd3104995b | 804 | |
| fneirab | 11:bdbd3104995b | 805 | ///STEP 2. Restore FullCap |
| fneirab | 9:f29d5e49b190 | 806 | ret = readReg(FULLCAPNOM_REG, fullcapnom_data); |
| fneirab | 11:bdbd3104995b | 807 | if (ret < F_SUCCESS_0) |
| fneirab | 9:f29d5e49b190 | 808 | return ret; |
| fneirab | 9:f29d5e49b190 | 809 | |
| fneirab | 9:f29d5e49b190 | 810 | ret = readReg(MIXSOC_REG, temp_data); //check if Error in sofware guide register incorrect |
| fneirab | 11:bdbd3104995b | 811 | if (ret < F_SUCCESS_0) |
| fneirab | 9:f29d5e49b190 | 812 | return ret; |
| fneirab | 9:f29d5e49b190 | 813 | |
| fneirab | 9:f29d5e49b190 | 814 | mixCap_calc = (temp_data*fullcapnom_data)/25600; |
| fneirab | 9:f29d5e49b190 | 815 | |
| fneirab | 9:f29d5e49b190 | 816 | write_and_verify_reg(MIXCAP_REG, mixCap_calc); |
| fneirab | 9:f29d5e49b190 | 817 | write_and_verify_reg(FULLCAPREP_REG, FG_params.full_cap_rep); |
| fneirab | 9:f29d5e49b190 | 818 | |
| fneirab | 11:bdbd3104995b | 819 | ///STEP 3. Write DQACC to 200% of Capacity and DPACC to 200% |
| fneirab | 9:f29d5e49b190 | 820 | dQacc_calc = (FG_params.full_cap_nom/ 16) ; |
| fneirab | 9:f29d5e49b190 | 821 | |
| fneirab | 9:f29d5e49b190 | 822 | write_and_verify_reg(DPACC_REG, dPacc_value); |
| fneirab | 9:f29d5e49b190 | 823 | write_and_verify_reg(DQACC_REG, dQacc_calc); |
| fneirab | 9:f29d5e49b190 | 824 | |
| fneirab | 9:f29d5e49b190 | 825 | wait_ms(350); |
| fneirab | 9:f29d5e49b190 | 826 | |
| fneirab | 11:bdbd3104995b | 827 | ///STEP 4. Restore Cycles register |
| fneirab | 9:f29d5e49b190 | 828 | ret = write_and_verify_reg(CYCLES_REG, FG_params.cycles); |
| fneirab | 11:bdbd3104995b | 829 | if (ret < F_SUCCESS_0) |
| fneirab | 9:f29d5e49b190 | 830 | return ret; |
| fneirab | 11:bdbd3104995b | 831 | return ret; |
| fneirab | 11:bdbd3104995b | 832 | } |
| fneirab | 11:bdbd3104995b | 833 | |
| fneirab | 11:bdbd3104995b | 834 | /** |
| fneirab | 11:bdbd3104995b | 835 | * @brief Function to Save Average Current to At Rate register. |
| fneirab | 11:bdbd3104995b | 836 | * @par Details |
| fneirab | 11:bdbd3104995b | 837 | * For User frendliness display of TTE, avSOC, avCAP |
| fneirab | 11:bdbd3104995b | 838 | * write the average current to At Rate registers every 10sec |
| fneirab | 11:bdbd3104995b | 839 | * when the battery is in use. |
| fneirab | 11:bdbd3104995b | 840 | * NOTE: do not use this function when the Battery is charging. |
| fneirab | 11:bdbd3104995b | 841 | * |
| fneirab | 11:bdbd3104995b | 842 | * @retval 0 for success |
| fneirab | 11:bdbd3104995b | 843 | * @retval non-0 negative for errors |
| fneirab | 11:bdbd3104995b | 844 | */ |
| fneirab | 11:bdbd3104995b | 845 | int MAX17055::avCurr_2_atRate() |
| fneirab | 11:bdbd3104995b | 846 | { |
| fneirab | 11:bdbd3104995b | 847 | int ret; |
| fneirab | 11:bdbd3104995b | 848 | uint16_t avCurr_data; |
| fneirab | 11:bdbd3104995b | 849 | |
| fneirab | 11:bdbd3104995b | 850 | ret = readReg(AVGCURRENT_REG, avCurr_data); |
| fneirab | 11:bdbd3104995b | 851 | if (ret < F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 852 | return ret; |
| fneirab | 11:bdbd3104995b | 853 | |
| fneirab | 11:bdbd3104995b | 854 | //Write avCurrent to atRate Register |
| fneirab | 11:bdbd3104995b | 855 | ret = write_and_verify_reg(ATRATE_REG, avCurr_data); |
| fneirab | 11:bdbd3104995b | 856 | if (ret < F_SUCCESS_0) |
| fneirab | 11:bdbd3104995b | 857 | return ret; |
| fneirab | 11:bdbd3104995b | 858 | return ret; |
| fneirab | 7:479a36909ced | 859 | } |