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
- Committer:
- daniel_gs_jeong
- Date:
- 2018-09-28
- Revision:
- 1:7182e55f5f59
- Parent:
- 0:c39030c3a7cf
File content as of revision 1:7182e55f5f59:
/******************************************************************************* * Copyright (C) 2018 Maxim Integrated Products, Inc., All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name of Maxim Integrated * Products, Inc. shall not be used except as stated in the Maxim Integrated * Products, Inc. Branding Policy. * * The mere transfer of this software does not imply any licenses * of trade secrets, proprietary technology, copyrights, patents, * trademarks, maskwork rights, or any other form of intellectual * property whatsoever. Maxim Integrated Products, Inc. retains all * ownership rights. ******************************************************************************* */ #include "max77816.h" /***** Definitions *****/ #define I2C_ADDR (0x18<<1) //****************************************************************************** MAX77816::MAX77816(PinName sda, PinName scl) { i2c_ = new I2C(sda, scl); i2c_owner = true; i2c_->frequency(400000); } //****************************************************************************** MAX77816::MAX77816(I2C *i2c) : i2c_(i2c) { i2c_owner = false; } //****************************************************************************** MAX77816::~MAX77816() { if(i2c_owner) { delete i2c_; } } //****************************************************************************** int32_t MAX77816::init() { return 0; } //****************************************************************************** int32_t MAX77816::writeReg(MAX77816::registers_t reg_addr, char reg_data) { char data[2]; data[0] = reg_addr; data[1] = reg_data; if (i2c_->write(I2C_ADDR, data, 2) != 0) { return -1; } return 0; } //****************************************************************************** int32_t MAX77816::readReg(MAX77816::registers_t reg_addr) { char data; data = reg_addr; if (i2c_->write(I2C_ADDR, &data, 1, true) != 0) { return -1; } if (i2c_->read(I2C_ADDR | 0x01, &data, 1) != 0) { return -1; } return (0x0 + data); } //***************************************************************************** int32_t MAX77816::readBlock(MAX77816::registers_t startReg, MAX77816::registers_t stopReg, uint8_t *data) { int32_t rtnVal = -1; int32_t numBytes = ((stopReg - startReg) + 1); char packet[] = {static_cast<char>(startReg)}; if(i2c_->write(I2C_ADDR, packet, 1) == 0) { rtnVal = i2c_->read(I2C_ADDR | 0x01, reinterpret_cast<char *>(data), numBytes); } return rtnVal; } //***************************************************************************** int32_t MAX77816::writeBlock(MAX77816::registers_t startReg, MAX77816::registers_t stopReg, const uint8_t *data) { int32_t numBytes = ((stopReg - startReg) + 1); char packet[numBytes + 1]; packet[0] = static_cast<char>(startReg); memcpy(packet + 1, data, numBytes); return i2c_->write(I2C_ADDR, packet, sizeof(packet)); } //***************************************************************************** int32_t MAX77816::getVersion() { int32_t rData; rData = readReg(REG_0); if(rData< 0) return rData; return ((rData >> 4) & 0x7); } //***************************************************************************** int32_t MAX77816::getChipRevision() { int32_t rData; rData = readReg(REG_0); if(rData< 0) return rData; return ((rData >> 0) & 0xf); } //***************************************************************************** int32_t MAX77816::getStatus() { int32_t rData; rData = readReg(REG_1); if(rData< 0) return rData; return ((rData >> 0) & 0xf); } //***************************************************************************** int32_t MAX77816::setVout(uint8_t reg_data) { int32_t rData; rData = writeReg(REG_4, (reg_data & 0x7f)); return rData; } //***************************************************************************** int32_t MAX77816::setVoutH(uint8_t reg_data) { int32_t rData; rData = writeReg(REG_5, (reg_data & 0x7f)); return rData; } //***************************************************************************** int32_t MAX77816::setIntMask(uint8_t reg_data) { int32_t rData; rData = writeReg(REG_6, (reg_data & 0x7f)); return rData; } int32_t MAX77816::setIntMask() { int32_t rData; rData = readReg(REG_6); if(rData< 0) return rData; return ((rData >> 0) & 0xf); } //***************************************************************************** int32_t MAX77816::getInt() { int32_t rData; rData = readReg(REG_7); if(rData< 0) return rData; return ((rData >> 0) & 0xf); }