Library for MAX5387 dual channel digi pot
Diff: max5387.cpp
- Revision:
- 0:bc5ccbaf1650
- Child:
- 1:f50b0fb1f7f6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/max5387.cpp Mon Jul 20 02:42:50 2015 +0000 @@ -0,0 +1,110 @@ +/******************************************************************//** +* @file max5387.h +* +* @author Justin Jordan +* +* @version 0.0 +* +* Started: 18JUL15 +* +* Updated: +* +* @brief Header file for Max5387 class +*********************************************************************** +* 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); + _p_i2c->frequency(400000); +} + + +//********************************************************************* +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); + _p_i2c->frequency(400000); +} + + +//********************************************************************* +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)); +} + \ No newline at end of file