Library for MAX5387 dual channel digi pot
max5387.cpp
- Committer:
- j3
- Date:
- 2016-05-12
- Revision:
- 4:89d2f70616ee
- Parent:
- 3:25deebfe51ba
File content as of revision 4:89d2f70616ee:
/******************************************************************//** * @file max5387.cpp * Copyright (C) 2015 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 "max5387.h" #define MAX5387_CMD_A (0x11) #define MAX5387_CMD_B (0x12) #define MAX5387_CMD_AB (0x13) //********************************************************************* Max5387::Max5387(I2C *i2c_bus, max5387_i2c_adrs_t i2c_adrs): _p_i2c(i2c_bus) { _i2c_owner = false; _w_adrs = (i2c_adrs << 1); } //********************************************************************* Max5387::Max5387(PinName sda, PinName scl, max5387_i2c_adrs_t i2c_adrs) { _p_i2c = new I2C(sda, scl); _i2c_owner = true; _w_adrs = (i2c_adrs << 1); } //********************************************************************* Max5387::~Max5387() { if(_i2c_owner) { delete _p_i2c; } } //********************************************************************* int16_t Max5387::write_ch_A(uint8_t val) { char data[] = {MAX5387_CMD_A, val}; return(_p_i2c->write(_w_adrs, data, 2, false)); } //********************************************************************* int16_t Max5387::write_ch_B(uint8_t val) { char data[] = {MAX5387_CMD_B, val}; return(_p_i2c->write(_w_adrs, data, 2, false)); } //********************************************************************* int16_t Max5387::write_ch_AB(uint8_t val) { char data[] = {MAX5387_CMD_AB, val}; return(_p_i2c->write(_w_adrs, data, 2, false)); }