MAX8971 1-Cell LI+ DC-DC Charger Driver. Datasheet is available at https://datasheets.maximintegrated.com/en/ds/MAX8971.pdf. And it was tested using MAX32630FTHR Board.
Fork of max77801 by
max77801.cpp@0:b9790d4a35fd, 2017-11-20 (annotated)
- Committer:
- daniel_gs_jeong
- Date:
- Mon Nov 20 14:57:49 2017 +0000
- Revision:
- 0:b9790d4a35fd
Initial Commit of MAX77801 Library. The MAX77801 is a high-current, high-efficiency buck-boost. ; Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX77801.pdf;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
daniel_gs_jeong | 0:b9790d4a35fd | 1 | /******************************************************************************* |
daniel_gs_jeong | 0:b9790d4a35fd | 2 | * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved. |
daniel_gs_jeong | 0:b9790d4a35fd | 3 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
daniel_gs_jeong | 0:b9790d4a35fd | 5 | * copy of this software and associated documentation files (the "Software"), |
daniel_gs_jeong | 0:b9790d4a35fd | 6 | * to deal in the Software without restriction, including without limitation |
daniel_gs_jeong | 0:b9790d4a35fd | 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
daniel_gs_jeong | 0:b9790d4a35fd | 8 | * and/or sell copies of the Software, and to permit persons to whom the |
daniel_gs_jeong | 0:b9790d4a35fd | 9 | * Software is furnished to do so, subject to the following conditions: |
daniel_gs_jeong | 0:b9790d4a35fd | 10 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 11 | * The above copyright notice and this permission notice shall be included |
daniel_gs_jeong | 0:b9790d4a35fd | 12 | * in all copies or substantial portions of the Software. |
daniel_gs_jeong | 0:b9790d4a35fd | 13 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
daniel_gs_jeong | 0:b9790d4a35fd | 15 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
daniel_gs_jeong | 0:b9790d4a35fd | 16 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
daniel_gs_jeong | 0:b9790d4a35fd | 17 | * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES |
daniel_gs_jeong | 0:b9790d4a35fd | 18 | * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
daniel_gs_jeong | 0:b9790d4a35fd | 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
daniel_gs_jeong | 0:b9790d4a35fd | 20 | * OTHER DEALINGS IN THE SOFTWARE. |
daniel_gs_jeong | 0:b9790d4a35fd | 21 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 22 | * Except as contained in this notice, the name of Maxim Integrated |
daniel_gs_jeong | 0:b9790d4a35fd | 23 | * Products, Inc. shall not be used except as stated in the Maxim Integrated |
daniel_gs_jeong | 0:b9790d4a35fd | 24 | * Products, Inc. Branding Policy. |
daniel_gs_jeong | 0:b9790d4a35fd | 25 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 26 | * The mere transfer of this software does not imply any licenses |
daniel_gs_jeong | 0:b9790d4a35fd | 27 | * of trade secrets, proprietary technology, copyrights, patents, |
daniel_gs_jeong | 0:b9790d4a35fd | 28 | * trademarks, maskwork rights, or any other form of intellectual |
daniel_gs_jeong | 0:b9790d4a35fd | 29 | * property whatsoever. Maxim Integrated Products, Inc. retains all |
daniel_gs_jeong | 0:b9790d4a35fd | 30 | * ownership rights. |
daniel_gs_jeong | 0:b9790d4a35fd | 31 | ******************************************************************************* |
daniel_gs_jeong | 0:b9790d4a35fd | 32 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 33 | #include "max77801.h" |
daniel_gs_jeong | 0:b9790d4a35fd | 34 | |
daniel_gs_jeong | 0:b9790d4a35fd | 35 | /***** Definitions *****/ |
daniel_gs_jeong | 0:b9790d4a35fd | 36 | #define I2C_ADDR (0x18<<1) |
daniel_gs_jeong | 0:b9790d4a35fd | 37 | |
daniel_gs_jeong | 0:b9790d4a35fd | 38 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 39 | * MAX77801 constructor. |
daniel_gs_jeong | 0:b9790d4a35fd | 40 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 41 | * @param i2c I2C object to use. |
daniel_gs_jeong | 0:b9790d4a35fd | 42 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 43 | MAX77801::MAX77801(I2C *i2c) : |
daniel_gs_jeong | 0:b9790d4a35fd | 44 | i2c_(i2c) |
daniel_gs_jeong | 0:b9790d4a35fd | 45 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 46 | i2c_owner = false; |
daniel_gs_jeong | 0:b9790d4a35fd | 47 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 48 | |
daniel_gs_jeong | 0:b9790d4a35fd | 49 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 50 | * MAX77801 destructor. |
daniel_gs_jeong | 0:b9790d4a35fd | 51 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 52 | MAX77801::~MAX77801() |
daniel_gs_jeong | 0:b9790d4a35fd | 53 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 54 | if(i2c_owner) { |
daniel_gs_jeong | 0:b9790d4a35fd | 55 | delete i2c_; |
daniel_gs_jeong | 0:b9790d4a35fd | 56 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 57 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 58 | |
daniel_gs_jeong | 0:b9790d4a35fd | 59 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 60 | * @brief Initialize MAX77801 |
daniel_gs_jeong | 0:b9790d4a35fd | 61 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 62 | int32_t MAX77801::init() |
daniel_gs_jeong | 0:b9790d4a35fd | 63 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 64 | int32_t data; |
daniel_gs_jeong | 0:b9790d4a35fd | 65 | |
daniel_gs_jeong | 0:b9790d4a35fd | 66 | data = write_register(REG_CONFIG1, 0x0E); |
daniel_gs_jeong | 0:b9790d4a35fd | 67 | if(data < 0) |
daniel_gs_jeong | 0:b9790d4a35fd | 68 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 69 | |
daniel_gs_jeong | 0:b9790d4a35fd | 70 | data = write_register(REG_CONFIG2, 0x70); |
daniel_gs_jeong | 0:b9790d4a35fd | 71 | if(data < 0) |
daniel_gs_jeong | 0:b9790d4a35fd | 72 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 73 | |
daniel_gs_jeong | 0:b9790d4a35fd | 74 | return 0; |
daniel_gs_jeong | 0:b9790d4a35fd | 75 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 76 | |
daniel_gs_jeong | 0:b9790d4a35fd | 77 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 78 | * @brief Read Register |
daniel_gs_jeong | 0:b9790d4a35fd | 79 | * @details Reads data from MAX77801 register |
daniel_gs_jeong | 0:b9790d4a35fd | 80 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 81 | * @param reg_addr Register to read |
daniel_gs_jeong | 0:b9790d4a35fd | 82 | * @returns data if no errors, -1 if error. |
daniel_gs_jeong | 0:b9790d4a35fd | 83 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 84 | int32_t MAX77801::read_register(MAX77801::registers_t reg_no) |
daniel_gs_jeong | 0:b9790d4a35fd | 85 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 86 | char data; |
daniel_gs_jeong | 0:b9790d4a35fd | 87 | |
daniel_gs_jeong | 0:b9790d4a35fd | 88 | data = reg_no; |
daniel_gs_jeong | 0:b9790d4a35fd | 89 | if (i2c_->write(I2C_ADDR, &data, 1, true) != 0) { |
daniel_gs_jeong | 0:b9790d4a35fd | 90 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 91 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 92 | |
daniel_gs_jeong | 0:b9790d4a35fd | 93 | if (i2c_->read(I2C_ADDR | 0x01, &data, 1) != 0) { |
daniel_gs_jeong | 0:b9790d4a35fd | 94 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 95 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 96 | |
daniel_gs_jeong | 0:b9790d4a35fd | 97 | return (0x0 + data); |
daniel_gs_jeong | 0:b9790d4a35fd | 98 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 99 | |
daniel_gs_jeong | 0:b9790d4a35fd | 100 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 101 | * @brief Write Register |
daniel_gs_jeong | 0:b9790d4a35fd | 102 | * @details Writes data to MAX77756 register |
daniel_gs_jeong | 0:b9790d4a35fd | 103 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 104 | * @param reg_addr Register to write |
daniel_gs_jeong | 0:b9790d4a35fd | 105 | * @param reg_data Data to write |
daniel_gs_jeong | 0:b9790d4a35fd | 106 | * @returns 0 if no errors, -1 if error. |
daniel_gs_jeong | 0:b9790d4a35fd | 107 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 108 | int32_t MAX77801::write_register(MAX77801::registers_t reg_no, char reg_data) |
daniel_gs_jeong | 0:b9790d4a35fd | 109 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 110 | char data[2]; |
daniel_gs_jeong | 0:b9790d4a35fd | 111 | |
daniel_gs_jeong | 0:b9790d4a35fd | 112 | data[0] = reg_no; |
daniel_gs_jeong | 0:b9790d4a35fd | 113 | data[1] = reg_data; |
daniel_gs_jeong | 0:b9790d4a35fd | 114 | if (i2c_->write(I2C_ADDR, data, 2) != 0) { |
daniel_gs_jeong | 0:b9790d4a35fd | 115 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 116 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 117 | |
daniel_gs_jeong | 0:b9790d4a35fd | 118 | return 0; |
daniel_gs_jeong | 0:b9790d4a35fd | 119 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 120 | |
daniel_gs_jeong | 0:b9790d4a35fd | 121 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 122 | * @brief Update Register data |
daniel_gs_jeong | 0:b9790d4a35fd | 123 | * @details Update bits data of a register |
daniel_gs_jeong | 0:b9790d4a35fd | 124 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 125 | * @param reg_no Register Number to be updated |
daniel_gs_jeong | 0:b9790d4a35fd | 126 | * @param mask Mask Data |
daniel_gs_jeong | 0:b9790d4a35fd | 127 | * @param reg_data bit data |
daniel_gs_jeong | 0:b9790d4a35fd | 128 | * @returns 0 if no errors, -1 if error. |
daniel_gs_jeong | 0:b9790d4a35fd | 129 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 130 | int32_t MAX77801::update_register |
daniel_gs_jeong | 0:b9790d4a35fd | 131 | (MAX77801::registers_t reg_no, char reg_mask, char reg_data) |
daniel_gs_jeong | 0:b9790d4a35fd | 132 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 133 | int32_t data; |
daniel_gs_jeong | 0:b9790d4a35fd | 134 | |
daniel_gs_jeong | 0:b9790d4a35fd | 135 | data = read_register(reg_no); |
daniel_gs_jeong | 0:b9790d4a35fd | 136 | if(data < 0) |
daniel_gs_jeong | 0:b9790d4a35fd | 137 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 138 | |
daniel_gs_jeong | 0:b9790d4a35fd | 139 | data &= ~reg_mask; |
daniel_gs_jeong | 0:b9790d4a35fd | 140 | data |= reg_data; |
daniel_gs_jeong | 0:b9790d4a35fd | 141 | |
daniel_gs_jeong | 0:b9790d4a35fd | 142 | data = write_register(reg_no, (char)(data & 0xff)); |
daniel_gs_jeong | 0:b9790d4a35fd | 143 | if(data < 0) |
daniel_gs_jeong | 0:b9790d4a35fd | 144 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 145 | return 0; |
daniel_gs_jeong | 0:b9790d4a35fd | 146 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 147 | |
daniel_gs_jeong | 0:b9790d4a35fd | 148 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 149 | * @brief Get version info |
daniel_gs_jeong | 0:b9790d4a35fd | 150 | * @details 0 : Plain |
daniel_gs_jeong | 0:b9790d4a35fd | 151 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 152 | * @param None |
daniel_gs_jeong | 0:b9790d4a35fd | 153 | * @returns version info. |
daniel_gs_jeong | 0:b9790d4a35fd | 154 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 155 | char* MAX77801::get_version() |
daniel_gs_jeong | 0:b9790d4a35fd | 156 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 157 | int32_t data; |
daniel_gs_jeong | 0:b9790d4a35fd | 158 | |
daniel_gs_jeong | 0:b9790d4a35fd | 159 | data = read_register(REG_DEVICE_ID); |
daniel_gs_jeong | 0:b9790d4a35fd | 160 | switch ((data >> 3) & 0xf) |
daniel_gs_jeong | 0:b9790d4a35fd | 161 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 162 | case 0x0: |
daniel_gs_jeong | 0:b9790d4a35fd | 163 | return "PLAIN"; |
daniel_gs_jeong | 0:b9790d4a35fd | 164 | case 0x1: |
daniel_gs_jeong | 0:b9790d4a35fd | 165 | return "-1Z"; |
daniel_gs_jeong | 0:b9790d4a35fd | 166 | case 0x2: |
daniel_gs_jeong | 0:b9790d4a35fd | 167 | return "-2Z"; |
daniel_gs_jeong | 0:b9790d4a35fd | 168 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 169 | return "UNKNOWN"; |
daniel_gs_jeong | 0:b9790d4a35fd | 170 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 171 | |
daniel_gs_jeong | 0:b9790d4a35fd | 172 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 173 | * @brief Get revision info |
daniel_gs_jeong | 0:b9790d4a35fd | 174 | * @details 0x1 : PASS1 |
daniel_gs_jeong | 0:b9790d4a35fd | 175 | * 0x2 : PASS2 |
daniel_gs_jeong | 0:b9790d4a35fd | 176 | * 0x3 : PASS3 |
daniel_gs_jeong | 0:b9790d4a35fd | 177 | * @param None |
daniel_gs_jeong | 0:b9790d4a35fd | 178 | * @returns revision info. |
daniel_gs_jeong | 0:b9790d4a35fd | 179 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 180 | char* MAX77801::get_revision() |
daniel_gs_jeong | 0:b9790d4a35fd | 181 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 182 | int32_t data; |
daniel_gs_jeong | 0:b9790d4a35fd | 183 | |
daniel_gs_jeong | 0:b9790d4a35fd | 184 | data = read_register(REG_DEVICE_ID); |
daniel_gs_jeong | 0:b9790d4a35fd | 185 | switch(data & 0x7) |
daniel_gs_jeong | 0:b9790d4a35fd | 186 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 187 | case 0x0: |
daniel_gs_jeong | 0:b9790d4a35fd | 188 | return "PASS1"; |
daniel_gs_jeong | 0:b9790d4a35fd | 189 | case 0x1: |
daniel_gs_jeong | 0:b9790d4a35fd | 190 | return "PASS2"; |
daniel_gs_jeong | 0:b9790d4a35fd | 191 | case 0x2: |
daniel_gs_jeong | 0:b9790d4a35fd | 192 | return "PASS3"; |
daniel_gs_jeong | 0:b9790d4a35fd | 193 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 194 | return "UNKNOWN"; |
daniel_gs_jeong | 0:b9790d4a35fd | 195 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 196 | |
daniel_gs_jeong | 0:b9790d4a35fd | 197 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 198 | * @brief Get status |
daniel_gs_jeong | 0:b9790d4a35fd | 199 | * @details Get status register data |
daniel_gs_jeong | 0:b9790d4a35fd | 200 | * BIT3 : Junction Temperature info |
daniel_gs_jeong | 0:b9790d4a35fd | 201 | * BIT2 : Buck Boost POK Status |
daniel_gs_jeong | 0:b9790d4a35fd | 202 | * BIT1 : Buck Boost OVP Status |
daniel_gs_jeong | 0:b9790d4a35fd | 203 | * BIT0 : Buck Boost OCP Status |
daniel_gs_jeong | 0:b9790d4a35fd | 204 | * @param None |
daniel_gs_jeong | 0:b9790d4a35fd | 205 | * @returns status register data. |
daniel_gs_jeong | 0:b9790d4a35fd | 206 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 207 | int32_t MAX77801::get_status() |
daniel_gs_jeong | 0:b9790d4a35fd | 208 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 209 | int32_t data; |
daniel_gs_jeong | 0:b9790d4a35fd | 210 | |
daniel_gs_jeong | 0:b9790d4a35fd | 211 | data = read_register(REG_DEVICE_ID); |
daniel_gs_jeong | 0:b9790d4a35fd | 212 | if(data < 0) |
daniel_gs_jeong | 0:b9790d4a35fd | 213 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 214 | return (data & 0x0f); |
daniel_gs_jeong | 0:b9790d4a35fd | 215 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 216 | |
daniel_gs_jeong | 0:b9790d4a35fd | 217 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 218 | * @brief config enable bit |
daniel_gs_jeong | 0:b9790d4a35fd | 219 | * @details Set a Config bit controlled using enabled/disabled |
daniel_gs_jeong | 0:b9790d4a35fd | 220 | * @param config : config bit |
daniel_gs_jeong | 0:b9790d4a35fd | 221 | * @param en : enable/disable |
daniel_gs_jeong | 0:b9790d4a35fd | 222 | * @returns 0 if no errors, -1 if error. |
daniel_gs_jeong | 0:b9790d4a35fd | 223 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 224 | int32_t MAX77801::config_enable(MAX77801::config_enabled_t config, |
daniel_gs_jeong | 0:b9790d4a35fd | 225 | MAX77801::enable_t en) |
daniel_gs_jeong | 0:b9790d4a35fd | 226 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 227 | int32_t data; |
daniel_gs_jeong | 0:b9790d4a35fd | 228 | |
daniel_gs_jeong | 0:b9790d4a35fd | 229 | switch(config) |
daniel_gs_jeong | 0:b9790d4a35fd | 230 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 231 | case ACTIVE_DISCHARGE: |
daniel_gs_jeong | 0:b9790d4a35fd | 232 | data = update_register(REG_CONFIG1, 0x02, ((char)en) <<1); |
daniel_gs_jeong | 0:b9790d4a35fd | 233 | break; |
daniel_gs_jeong | 0:b9790d4a35fd | 234 | case FORCED_PWM: |
daniel_gs_jeong | 0:b9790d4a35fd | 235 | data = update_register(REG_CONFIG1, 0x01, ((char)en) <<0); |
daniel_gs_jeong | 0:b9790d4a35fd | 236 | break; |
daniel_gs_jeong | 0:b9790d4a35fd | 237 | case BUCK_BOOST_OUTPUT: |
daniel_gs_jeong | 0:b9790d4a35fd | 238 | data = update_register(REG_CONFIG2, 0x40, ((char)en) <<6); |
daniel_gs_jeong | 0:b9790d4a35fd | 239 | break; |
daniel_gs_jeong | 0:b9790d4a35fd | 240 | case EN_PULL_DOWN: |
daniel_gs_jeong | 0:b9790d4a35fd | 241 | data = update_register(REG_CONFIG2, 0x20, ((char)en) <<5); |
daniel_gs_jeong | 0:b9790d4a35fd | 242 | break; |
daniel_gs_jeong | 0:b9790d4a35fd | 243 | default: |
daniel_gs_jeong | 0:b9790d4a35fd | 244 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 245 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 246 | |
daniel_gs_jeong | 0:b9790d4a35fd | 247 | if(data < 0) |
daniel_gs_jeong | 0:b9790d4a35fd | 248 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 249 | return 0; |
daniel_gs_jeong | 0:b9790d4a35fd | 250 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 251 | |
daniel_gs_jeong | 0:b9790d4a35fd | 252 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 253 | * @brief Config Ramp Up |
daniel_gs_jeong | 0:b9790d4a35fd | 254 | * @details Set BB_RU_SR |
daniel_gs_jeong | 0:b9790d4a35fd | 255 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 256 | * @param config : config value |
daniel_gs_jeong | 0:b9790d4a35fd | 257 | * @returns 0 if no errors, -1 if error. |
daniel_gs_jeong | 0:b9790d4a35fd | 258 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 259 | int32_t MAX77801::config_ramp_up(MAX77801::ramp_up_rate_t config) |
daniel_gs_jeong | 0:b9790d4a35fd | 260 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 261 | int32_t data; |
daniel_gs_jeong | 0:b9790d4a35fd | 262 | |
daniel_gs_jeong | 0:b9790d4a35fd | 263 | data = update_register(REG_CONFIG1, 0x20, ((char)config) <<5); |
daniel_gs_jeong | 0:b9790d4a35fd | 264 | if(data < 0) |
daniel_gs_jeong | 0:b9790d4a35fd | 265 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 266 | return 0; |
daniel_gs_jeong | 0:b9790d4a35fd | 267 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 268 | |
daniel_gs_jeong | 0:b9790d4a35fd | 269 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 270 | * @brief Config Ramp Down |
daniel_gs_jeong | 0:b9790d4a35fd | 271 | * @details Set BB_RD_SR |
daniel_gs_jeong | 0:b9790d4a35fd | 272 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 273 | * @param config : config value |
daniel_gs_jeong | 0:b9790d4a35fd | 274 | * @returns 0 if no errors, -1 if error. |
daniel_gs_jeong | 0:b9790d4a35fd | 275 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 276 | int32_t MAX77801::config_ramp_down(MAX77801::ramp_dn_rate_t config) |
daniel_gs_jeong | 0:b9790d4a35fd | 277 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 278 | int32_t data; |
daniel_gs_jeong | 0:b9790d4a35fd | 279 | |
daniel_gs_jeong | 0:b9790d4a35fd | 280 | data = update_register(REG_CONFIG1, 0x10, ((char)config) <<4); |
daniel_gs_jeong | 0:b9790d4a35fd | 281 | if(data < 0) |
daniel_gs_jeong | 0:b9790d4a35fd | 282 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 283 | return 0; |
daniel_gs_jeong | 0:b9790d4a35fd | 284 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 285 | |
daniel_gs_jeong | 0:b9790d4a35fd | 286 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 287 | * @brief Config OVP Threshold |
daniel_gs_jeong | 0:b9790d4a35fd | 288 | * @details Set BB_OVP_TH bits |
daniel_gs_jeong | 0:b9790d4a35fd | 289 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 290 | * @param config : config value |
daniel_gs_jeong | 0:b9790d4a35fd | 291 | * @returns 0 if no errors, -1 if error. |
daniel_gs_jeong | 0:b9790d4a35fd | 292 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 293 | int32_t MAX77801::config_ovp_threshold(MAX77801::output_ovp_threshold_t config) |
daniel_gs_jeong | 0:b9790d4a35fd | 294 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 295 | int32_t data; |
daniel_gs_jeong | 0:b9790d4a35fd | 296 | |
daniel_gs_jeong | 0:b9790d4a35fd | 297 | data = update_register(REG_CONFIG1, 0x0C, ((char)config) <<2); |
daniel_gs_jeong | 0:b9790d4a35fd | 298 | if(data < 0) |
daniel_gs_jeong | 0:b9790d4a35fd | 299 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 300 | return 0; |
daniel_gs_jeong | 0:b9790d4a35fd | 301 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 302 | |
daniel_gs_jeong | 0:b9790d4a35fd | 303 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 304 | * @brief config pokpol active bit |
daniel_gs_jeong | 0:b9790d4a35fd | 305 | * @details Set POK_POL Bit |
daniel_gs_jeong | 0:b9790d4a35fd | 306 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 307 | * @param lowHigh : active value |
daniel_gs_jeong | 0:b9790d4a35fd | 308 | * @returns 0 if no errors, -1 if error. |
daniel_gs_jeong | 0:b9790d4a35fd | 309 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 310 | int32_t MAX77801::config_pokpol_active(MAX77801::low_high_t lowHigh) |
daniel_gs_jeong | 0:b9790d4a35fd | 311 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 312 | int32_t data; |
daniel_gs_jeong | 0:b9790d4a35fd | 313 | |
daniel_gs_jeong | 0:b9790d4a35fd | 314 | data = update_register(REG_CONFIG2, 0x10, ((char)lowHigh) <<4); |
daniel_gs_jeong | 0:b9790d4a35fd | 315 | if(data < 0) |
daniel_gs_jeong | 0:b9790d4a35fd | 316 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 317 | return 0; |
daniel_gs_jeong | 0:b9790d4a35fd | 318 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 319 | |
daniel_gs_jeong | 0:b9790d4a35fd | 320 | /** |
daniel_gs_jeong | 0:b9790d4a35fd | 321 | * @brief Set VOUT Voltage when DVS = Low |
daniel_gs_jeong | 0:b9790d4a35fd | 322 | * @details Set Vout Voltage |
daniel_gs_jeong | 0:b9790d4a35fd | 323 | * |
daniel_gs_jeong | 0:b9790d4a35fd | 324 | * @param vout level from 2.6000V ~ 4.1875V with 0.0125V step |
daniel_gs_jeong | 0:b9790d4a35fd | 325 | * @returns 0 if no errors, -1 if error. |
daniel_gs_jeong | 0:b9790d4a35fd | 326 | */ |
daniel_gs_jeong | 0:b9790d4a35fd | 327 | |
daniel_gs_jeong | 0:b9790d4a35fd | 328 | int32_t MAX77801::set_vout(double level, MAX77801::low_high_t dvs) |
daniel_gs_jeong | 0:b9790d4a35fd | 329 | { |
daniel_gs_jeong | 0:b9790d4a35fd | 330 | int32_t ret_val = 0; |
daniel_gs_jeong | 0:b9790d4a35fd | 331 | char reg_data = 0; |
daniel_gs_jeong | 0:b9790d4a35fd | 332 | |
daniel_gs_jeong | 0:b9790d4a35fd | 333 | if(level < 2.6000 || level > 4.1875) |
daniel_gs_jeong | 0:b9790d4a35fd | 334 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 335 | |
daniel_gs_jeong | 0:b9790d4a35fd | 336 | reg_data = (char)((level-2.6000)*80); |
daniel_gs_jeong | 0:b9790d4a35fd | 337 | |
daniel_gs_jeong | 0:b9790d4a35fd | 338 | if(dvs == VAL_LOW) |
daniel_gs_jeong | 0:b9790d4a35fd | 339 | ret_val = write_register(REG_VOUT_DVS_L,reg_data); |
daniel_gs_jeong | 0:b9790d4a35fd | 340 | else |
daniel_gs_jeong | 0:b9790d4a35fd | 341 | ret_val = write_register(REG_VOUT_DVS_H,reg_data); |
daniel_gs_jeong | 0:b9790d4a35fd | 342 | |
daniel_gs_jeong | 0:b9790d4a35fd | 343 | if(ret_val < 0) |
daniel_gs_jeong | 0:b9790d4a35fd | 344 | return -1; |
daniel_gs_jeong | 0:b9790d4a35fd | 345 | return 0; |
daniel_gs_jeong | 0:b9790d4a35fd | 346 | } |
daniel_gs_jeong | 0:b9790d4a35fd | 347 |