MAX20303
MAX20303.cpp
- Committer:
- Ismail Kose
- Date:
- 2018-01-19
- Revision:
- 0:ff4818eff240
- Child:
- 1:0333f77c665f
File content as of revision 0:ff4818eff240:
/******************************************************************************* * 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 "MAX20303.h" #include "Peripherals.h" //****************************************************************************** MAX20303::MAX20303(I2C *i2c): m_i2c(i2c), m_writeAddress(MAX20303_SLAVE_WR_ADDR), m_readAddress(MAX20303_SLAVE_RD_ADDR) { } //****************************************************************************** MAX20303::~MAX20303(void) { //empty block } //****************************************************************************** int MAX20303::LDO1Config() { int32_t ret = 0; uint8_t val; ret |= writeReg(MAX20303::REG_AP_CMDOUT, 0x40); ret |= writeReg(MAX20303::REG_AP_DATOUT0, 0x05); ret |= writeReg(MAX20303::REG_AP_DATOUT1, 0x34); readReg(MAX20303::REG_AP_CMDOUT, val); readReg(MAX20303::REG_AP_DATOUT0, val); readReg(MAX20303::REG_AP_DATOUT1, val); return ret; } //****************************************************************************** int MAX20303::writeReg(registers_t reg, uint8_t value) { int32_t ret; char cmdData[2] = {reg, value}; ret = m_i2c->write(m_writeAddress, cmdData, sizeof(cmdData)); //printf("MAX20303 write reg[0x%X]=0x%X, ret=%d\r\n", (uint32_t)reg, value, ret) if (ret != 0) return MAX20303_ERROR; return MAX20303_NO_ERROR; } //****************************************************************************** int MAX20303::readReg(registers_t reg, uint8_t &value) { int32_t ret; char data = reg; ret = m_i2c->write(m_writeAddress, &data, sizeof(data)); if (ret != 0) { printf("%s - failed - ret: %d\n", __func__); return MAX20303_ERROR; } ret = m_i2c->read(m_readAddress, &data, sizeof(data)); if (ret != 0) { printf("%s - failed - ret: %d\n", __func__); return MAX20303_ERROR; } value = data; printf("MAX20303 read reg[0x%X]=0x%X, ret=%d\r\n", (uint32_t)reg, value, ret); return MAX20303_NO_ERROR; } //****************************************************************************** int MAX20303::mv2bits(int mV) { int regBits; if (( MAX20303_LDO_MIN_MV <= mV) && (mV <= MAX20303_LDO_MAX_MV)) { regBits = (mV - MAX20303_LDO_MIN_MV) / MAX20303_LDO_STEP_MV; } else { return -1; } return regBits; } int MAX20303::led0on(void) { writeReg(REG_LED0_DIRECT, 0x21); return MAX20303_NO_ERROR; } int MAX20303::BoostEnable(void) { writeReg(REG_AP_CMDOUT, 0x30); writeReg(REG_AP_DATOUT3, 0x00); // 00 : 5V writeReg(REG_AP_DATOUT0, 0x01); // Boost Enabled return MAX20303_NO_ERROR; } int MAX20303::BuckBoostEnable(void) { int ret = 0; ret |= writeReg( REG_AP_DATOUT0, 0x00); // Reserved = 0x00 ret |= writeReg( REG_AP_DATOUT1, 0x04); // BBstlSet = 0b'100 Buck Boost Peak current Limit = 200mA ret |= writeReg( REG_AP_DATOUT2, 0x19); // BBstVSet = 0b'11001 Buck Boost Output Voltage = 5V ret |= writeReg( REG_AP_DATOUT3, 0x01); // BBstRipRed = 1 Ripple Reduction // BBstAct = 1 Actively discharged in Hard-Reset or Enable Low // BBstPas = 1 Passively discharged in Hard-Reset or Enable Low // BBstMd = 1 Damping Enabled // BBstInd = 0 Inductance is 4.7uH // BBstEn = 0b'01 Enabled ret |= writeReg( REG_AP_CMDOUT, 0x70); if (ret != 0) return MAX20303_ERROR; return MAX20303_NO_ERROR; }