MAX77816 Library. The MAX77816 is a high-current, high-efficiency buck-boost regulator targeting single-cell Li-ion battery powered applications. Please find more detail things on the website: https://www.maximintegrated.com/en/products/power/switching-regulators/MAX77816.html
max77816.cpp@0:c39030c3a7cf, 2018-03-20 (annotated)
- Committer:
- daniel_gs_jeong
- Date:
- Tue Mar 20 12:29:51 2018 +0000
- Revision:
- 0:c39030c3a7cf
- Child:
- 1:7182e55f5f59
MAX77816 Library. The MAX77816 is a high-current, high-efficiency; buck-boost regulator targeting single-cell Li-ion battery powered; applications.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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daniel_gs_jeong | 0:c39030c3a7cf | 1 | /******************************************************************************* |
daniel_gs_jeong | 0:c39030c3a7cf | 2 | * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved. |
daniel_gs_jeong | 0:c39030c3a7cf | 3 | * |
daniel_gs_jeong | 0:c39030c3a7cf | 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
daniel_gs_jeong | 0:c39030c3a7cf | 5 | * copy of this software and associated documentation files (the "Software"), |
daniel_gs_jeong | 0:c39030c3a7cf | 6 | * to deal in the Software without restriction, including without limitation |
daniel_gs_jeong | 0:c39030c3a7cf | 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
daniel_gs_jeong | 0:c39030c3a7cf | 8 | * and/or sell copies of the Software, and to permit persons to whom the |
daniel_gs_jeong | 0:c39030c3a7cf | 9 | * Software is furnished to do so, subject to the following conditions: |
daniel_gs_jeong | 0:c39030c3a7cf | 10 | * |
daniel_gs_jeong | 0:c39030c3a7cf | 11 | * The above copyright notice and this permission notice shall be included |
daniel_gs_jeong | 0:c39030c3a7cf | 12 | * in all copies or substantial portions of the Software. |
daniel_gs_jeong | 0:c39030c3a7cf | 13 | * |
daniel_gs_jeong | 0:c39030c3a7cf | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
daniel_gs_jeong | 0:c39030c3a7cf | 15 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
daniel_gs_jeong | 0:c39030c3a7cf | 16 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
daniel_gs_jeong | 0:c39030c3a7cf | 17 | * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES |
daniel_gs_jeong | 0:c39030c3a7cf | 18 | * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
daniel_gs_jeong | 0:c39030c3a7cf | 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
daniel_gs_jeong | 0:c39030c3a7cf | 20 | * OTHER DEALINGS IN THE SOFTWARE. |
daniel_gs_jeong | 0:c39030c3a7cf | 21 | * |
daniel_gs_jeong | 0:c39030c3a7cf | 22 | * Except as contained in this notice, the name of Maxim Integrated |
daniel_gs_jeong | 0:c39030c3a7cf | 23 | * Products, Inc. shall not be used except as stated in the Maxim Integrated |
daniel_gs_jeong | 0:c39030c3a7cf | 24 | * Products, Inc. Branding Policy. |
daniel_gs_jeong | 0:c39030c3a7cf | 25 | * |
daniel_gs_jeong | 0:c39030c3a7cf | 26 | * The mere transfer of this software does not imply any licenses |
daniel_gs_jeong | 0:c39030c3a7cf | 27 | * of trade secrets, proprietary technology, copyrights, patents, |
daniel_gs_jeong | 0:c39030c3a7cf | 28 | * trademarks, maskwork rights, or any other form of intellectual |
daniel_gs_jeong | 0:c39030c3a7cf | 29 | * property whatsoever. Maxim Integrated Products, Inc. retains all |
daniel_gs_jeong | 0:c39030c3a7cf | 30 | * ownership rights. |
daniel_gs_jeong | 0:c39030c3a7cf | 31 | ******************************************************************************* |
daniel_gs_jeong | 0:c39030c3a7cf | 32 | */ |
daniel_gs_jeong | 0:c39030c3a7cf | 33 | #include "max77816.h" |
daniel_gs_jeong | 0:c39030c3a7cf | 34 | |
daniel_gs_jeong | 0:c39030c3a7cf | 35 | /***** Definitions *****/ |
daniel_gs_jeong | 0:c39030c3a7cf | 36 | #define I2C_ADDR (0x18<<1) |
daniel_gs_jeong | 0:c39030c3a7cf | 37 | |
daniel_gs_jeong | 0:c39030c3a7cf | 38 | //****************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 39 | MAX77816::MAX77816(PinName sda, PinName scl) |
daniel_gs_jeong | 0:c39030c3a7cf | 40 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 41 | i2c_ = new I2C(sda, scl); |
daniel_gs_jeong | 0:c39030c3a7cf | 42 | i2c_owner = true; |
daniel_gs_jeong | 0:c39030c3a7cf | 43 | |
daniel_gs_jeong | 0:c39030c3a7cf | 44 | i2c_->frequency(400000); |
daniel_gs_jeong | 0:c39030c3a7cf | 45 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 46 | |
daniel_gs_jeong | 0:c39030c3a7cf | 47 | //****************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 48 | MAX77816::MAX77816(I2C *i2c) : |
daniel_gs_jeong | 0:c39030c3a7cf | 49 | i2c_(i2c) |
daniel_gs_jeong | 0:c39030c3a7cf | 50 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 51 | i2c_owner = false; |
daniel_gs_jeong | 0:c39030c3a7cf | 52 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 53 | |
daniel_gs_jeong | 0:c39030c3a7cf | 54 | //****************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 55 | MAX77816::~MAX77816() |
daniel_gs_jeong | 0:c39030c3a7cf | 56 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 57 | if(i2c_owner) { |
daniel_gs_jeong | 0:c39030c3a7cf | 58 | delete i2c_; |
daniel_gs_jeong | 0:c39030c3a7cf | 59 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 60 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 61 | |
daniel_gs_jeong | 0:c39030c3a7cf | 62 | //****************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 63 | int32_t MAX77816::init() |
daniel_gs_jeong | 0:c39030c3a7cf | 64 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 65 | return 0; |
daniel_gs_jeong | 0:c39030c3a7cf | 66 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 67 | |
daniel_gs_jeong | 0:c39030c3a7cf | 68 | //****************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 69 | int32_t MAX77816::writeReg(MAX77816::registers_t reg_addr, char reg_data) |
daniel_gs_jeong | 0:c39030c3a7cf | 70 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 71 | char data[2]; |
daniel_gs_jeong | 0:c39030c3a7cf | 72 | |
daniel_gs_jeong | 0:c39030c3a7cf | 73 | data[0] = reg_addr; |
daniel_gs_jeong | 0:c39030c3a7cf | 74 | data[1] = reg_data; |
daniel_gs_jeong | 0:c39030c3a7cf | 75 | if (i2c_->write(I2C_ADDR, data, 2) != 0) { |
daniel_gs_jeong | 0:c39030c3a7cf | 76 | return -1; |
daniel_gs_jeong | 0:c39030c3a7cf | 77 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 78 | |
daniel_gs_jeong | 0:c39030c3a7cf | 79 | return 0; |
daniel_gs_jeong | 0:c39030c3a7cf | 80 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 81 | |
daniel_gs_jeong | 0:c39030c3a7cf | 82 | //****************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 83 | int32_t MAX77816::readReg(MAX77816::registers_t reg_addr) |
daniel_gs_jeong | 0:c39030c3a7cf | 84 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 85 | char data; |
daniel_gs_jeong | 0:c39030c3a7cf | 86 | |
daniel_gs_jeong | 0:c39030c3a7cf | 87 | data = reg_addr; |
daniel_gs_jeong | 0:c39030c3a7cf | 88 | if (i2c_->write(I2C_ADDR, &data, 1, true) != 0) { |
daniel_gs_jeong | 0:c39030c3a7cf | 89 | return -1; |
daniel_gs_jeong | 0:c39030c3a7cf | 90 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 91 | |
daniel_gs_jeong | 0:c39030c3a7cf | 92 | if (i2c_->read(I2C_ADDR | 0x01, &data, 1) != 0) { |
daniel_gs_jeong | 0:c39030c3a7cf | 93 | return -1; |
daniel_gs_jeong | 0:c39030c3a7cf | 94 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 95 | |
daniel_gs_jeong | 0:c39030c3a7cf | 96 | return (0x0 + data); |
daniel_gs_jeong | 0:c39030c3a7cf | 97 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 98 | |
daniel_gs_jeong | 0:c39030c3a7cf | 99 | |
daniel_gs_jeong | 0:c39030c3a7cf | 100 | |
daniel_gs_jeong | 0:c39030c3a7cf | 101 | //***************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 102 | int32_t MAX77816::readBlock(MAX77816::registers_t startReg, MAX77816::registers_t stopReg, uint8_t *data) |
daniel_gs_jeong | 0:c39030c3a7cf | 103 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 104 | int32_t rtnVal = -1; |
daniel_gs_jeong | 0:c39030c3a7cf | 105 | int32_t numBytes = ((stopReg - startReg) + 1); |
daniel_gs_jeong | 0:c39030c3a7cf | 106 | char packet[] = {static_cast<char>(startReg)}; |
daniel_gs_jeong | 0:c39030c3a7cf | 107 | |
daniel_gs_jeong | 0:c39030c3a7cf | 108 | if(i2c_->write(I2C_ADDR, packet, 1) == 0) |
daniel_gs_jeong | 0:c39030c3a7cf | 109 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 110 | rtnVal = i2c_->read(I2C_ADDR | 0x01, reinterpret_cast<char *>(data), numBytes); |
daniel_gs_jeong | 0:c39030c3a7cf | 111 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 112 | |
daniel_gs_jeong | 0:c39030c3a7cf | 113 | return rtnVal; |
daniel_gs_jeong | 0:c39030c3a7cf | 114 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 115 | |
daniel_gs_jeong | 0:c39030c3a7cf | 116 | |
daniel_gs_jeong | 0:c39030c3a7cf | 117 | //***************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 118 | int32_t MAX77816::writeBlock(MAX77816::registers_t startReg, MAX77816::registers_t stopReg, const uint8_t *data) |
daniel_gs_jeong | 0:c39030c3a7cf | 119 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 120 | int32_t numBytes = ((stopReg - startReg) + 1); |
daniel_gs_jeong | 0:c39030c3a7cf | 121 | char packet[numBytes + 1]; |
daniel_gs_jeong | 0:c39030c3a7cf | 122 | |
daniel_gs_jeong | 0:c39030c3a7cf | 123 | packet[0] = static_cast<char>(startReg); |
daniel_gs_jeong | 0:c39030c3a7cf | 124 | |
daniel_gs_jeong | 0:c39030c3a7cf | 125 | memcpy(packet + 1, data, numBytes); |
daniel_gs_jeong | 0:c39030c3a7cf | 126 | |
daniel_gs_jeong | 0:c39030c3a7cf | 127 | return i2c_->write(I2C_ADDR, packet, sizeof(packet)); |
daniel_gs_jeong | 0:c39030c3a7cf | 128 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 129 | |
daniel_gs_jeong | 0:c39030c3a7cf | 130 | |
daniel_gs_jeong | 0:c39030c3a7cf | 131 | //***************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 132 | int32_t MAX77816::getVersion() |
daniel_gs_jeong | 0:c39030c3a7cf | 133 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 134 | int32_t rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 135 | |
daniel_gs_jeong | 0:c39030c3a7cf | 136 | rData = readReg(REG_0); |
daniel_gs_jeong | 0:c39030c3a7cf | 137 | if(rData< 0) |
daniel_gs_jeong | 0:c39030c3a7cf | 138 | return rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 139 | |
daniel_gs_jeong | 0:c39030c3a7cf | 140 | return ((rData >> 4) & 0x7); |
daniel_gs_jeong | 0:c39030c3a7cf | 141 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 142 | |
daniel_gs_jeong | 0:c39030c3a7cf | 143 | |
daniel_gs_jeong | 0:c39030c3a7cf | 144 | //***************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 145 | int32_t MAX77816::getChipRevision() |
daniel_gs_jeong | 0:c39030c3a7cf | 146 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 147 | int32_t rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 148 | |
daniel_gs_jeong | 0:c39030c3a7cf | 149 | rData = readReg(REG_0); |
daniel_gs_jeong | 0:c39030c3a7cf | 150 | if(rData< 0) |
daniel_gs_jeong | 0:c39030c3a7cf | 151 | return rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 152 | |
daniel_gs_jeong | 0:c39030c3a7cf | 153 | return ((rData >> 0) & 0xf); |
daniel_gs_jeong | 0:c39030c3a7cf | 154 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 155 | |
daniel_gs_jeong | 0:c39030c3a7cf | 156 | //***************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 157 | int32_t MAX77816::getStatus() |
daniel_gs_jeong | 0:c39030c3a7cf | 158 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 159 | int32_t rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 160 | |
daniel_gs_jeong | 0:c39030c3a7cf | 161 | rData = readReg(REG_1); |
daniel_gs_jeong | 0:c39030c3a7cf | 162 | if(rData< 0) |
daniel_gs_jeong | 0:c39030c3a7cf | 163 | return rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 164 | |
daniel_gs_jeong | 0:c39030c3a7cf | 165 | return ((rData >> 0) & 0xf); |
daniel_gs_jeong | 0:c39030c3a7cf | 166 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 167 | |
daniel_gs_jeong | 0:c39030c3a7cf | 168 | //***************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 169 | int32_t MAX77816::setVout(uint8_t reg_data) |
daniel_gs_jeong | 0:c39030c3a7cf | 170 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 171 | int32_t rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 172 | |
daniel_gs_jeong | 0:c39030c3a7cf | 173 | rData = writeReg(REG_4, (reg_data & 0x7f)); |
daniel_gs_jeong | 0:c39030c3a7cf | 174 | return rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 175 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 176 | |
daniel_gs_jeong | 0:c39030c3a7cf | 177 | //***************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 178 | int32_t MAX77816::setVoutH(uint8_t reg_data) |
daniel_gs_jeong | 0:c39030c3a7cf | 179 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 180 | int32_t rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 181 | |
daniel_gs_jeong | 0:c39030c3a7cf | 182 | rData = writeReg(REG_5, (reg_data & 0x7f)); |
daniel_gs_jeong | 0:c39030c3a7cf | 183 | return rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 184 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 185 | |
daniel_gs_jeong | 0:c39030c3a7cf | 186 | //***************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 187 | int32_t MAX77816::setIntMask(uint8_t reg_data) |
daniel_gs_jeong | 0:c39030c3a7cf | 188 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 189 | int32_t rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 190 | |
daniel_gs_jeong | 0:c39030c3a7cf | 191 | rData = writeReg(REG_6, (reg_data & 0x7f)); |
daniel_gs_jeong | 0:c39030c3a7cf | 192 | return rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 193 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 194 | |
daniel_gs_jeong | 0:c39030c3a7cf | 195 | int32_t MAX77816::setIntMask() |
daniel_gs_jeong | 0:c39030c3a7cf | 196 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 197 | int32_t rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 198 | |
daniel_gs_jeong | 0:c39030c3a7cf | 199 | rData = readReg(REG_6); |
daniel_gs_jeong | 0:c39030c3a7cf | 200 | if(rData< 0) |
daniel_gs_jeong | 0:c39030c3a7cf | 201 | return rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 202 | |
daniel_gs_jeong | 0:c39030c3a7cf | 203 | return ((rData >> 0) & 0xf); |
daniel_gs_jeong | 0:c39030c3a7cf | 204 | } |
daniel_gs_jeong | 0:c39030c3a7cf | 205 | //***************************************************************************** |
daniel_gs_jeong | 0:c39030c3a7cf | 206 | int32_t MAX77816::getInt() |
daniel_gs_jeong | 0:c39030c3a7cf | 207 | { |
daniel_gs_jeong | 0:c39030c3a7cf | 208 | int32_t rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 209 | |
daniel_gs_jeong | 0:c39030c3a7cf | 210 | rData = readReg(REG_7); |
daniel_gs_jeong | 0:c39030c3a7cf | 211 | if(rData< 0) |
daniel_gs_jeong | 0:c39030c3a7cf | 212 | return rData; |
daniel_gs_jeong | 0:c39030c3a7cf | 213 | |
daniel_gs_jeong | 0:c39030c3a7cf | 214 | return ((rData >> 0) & 0xf); |
daniel_gs_jeong | 0:c39030c3a7cf | 215 | } |