SCIboard_I2C.cpp

00001 /* SCIboard(TM) I2C.cpp
00002 Copyright (c) 2013 K. Andres
00003 
00004 Permission is hereby granted, free of charge, to any person obtaining a copy
00005 of this software and associated documentation files (the "Software"), to deal
00006 in the Software without restriction, including without limitation the rights
00007 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008 copies of the Software, and to permit persons to whom the Software is
00009 furnished to do so, subject to the following conditions:
00010 
00011 The above copyright notice and this permission notice shall be included in
00012 all copies or substantial portions of the Software.
00013 
00014 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00017 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00018 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00019 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00020 THE SOFTWARE.
00021 */
00022 
00023 #include "SCIboard_I2C.h"
00024 
00025 SCIboard_I2C::SCIboard_I2C(PinName sda, PinName sdc) : i2c(sda, sdc) {
00026 //    i2c.frequency(100000);
00027     i2c.frequency(400000);
00028     wait(.1);
00029 }
00030 
00031 void SCIboard_I2C::readRegs(int devAddr, int regAddr, unsigned char* data, int len) {
00032     char reg = regAddr;
00033     if((len>1) && (devAddr!=(0x60<<1)))     // MPL3115A2 doesn't need bit set
00034         reg |= 0x80; 
00035     i2c.write(devAddr, &reg, 1, true);
00036     i2c.read(devAddr, (char *)data, len);
00037 }
00038 
00039 void SCIboard_I2C::writeRegs(int devAddr, unsigned char* data, int len) {
00040     i2c.write(devAddr, (char *)data, len);
00041 }