test / mbed-src

mbed library sources

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Fork of mbed-src by mbed official

cpp/I2CSlave.cpp@0:fd0d7bdfcdc2, 2012-11-20 (annotated)

Committer:
mbed_official
Date:
Tue Nov 20 17:24:08 2012 +0000
Revision:
0:fd0d7bdfcdc2
Child:
2:143cac498751
mbed sources

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mbed_official 0:fd0d7bdfcdc2 1 /* mbed Microcontroller Library
mbed_official 0:fd0d7bdfcdc2 2 * Copyright (c) 2006-2012 ARM Limited
mbed_official 0:fd0d7bdfcdc2 3 *
mbed_official 0:fd0d7bdfcdc2 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
mbed_official 0:fd0d7bdfcdc2 5 * of this software and associated documentation files (the "Software"), to deal
mbed_official 0:fd0d7bdfcdc2 6 * in the Software without restriction, including without limitation the rights
mbed_official 0:fd0d7bdfcdc2 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
mbed_official 0:fd0d7bdfcdc2 8 * copies of the Software, and to permit persons to whom the Software is
mbed_official 0:fd0d7bdfcdc2 9 * furnished to do so, subject to the following conditions:
mbed_official 0:fd0d7bdfcdc2 10 *
mbed_official 0:fd0d7bdfcdc2 11 * The above copyright notice and this permission notice shall be included in
mbed_official 0:fd0d7bdfcdc2 12 * all copies or substantial portions of the Software.
mbed_official 0:fd0d7bdfcdc2 13 *
mbed_official 0:fd0d7bdfcdc2 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
mbed_official 0:fd0d7bdfcdc2 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
mbed_official 0:fd0d7bdfcdc2 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
mbed_official 0:fd0d7bdfcdc2 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
mbed_official 0:fd0d7bdfcdc2 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mbed_official 0:fd0d7bdfcdc2 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
mbed_official 0:fd0d7bdfcdc2 20 * SOFTWARE.
mbed_official 0:fd0d7bdfcdc2 21 */
mbed_official 0:fd0d7bdfcdc2 22 #include "I2CSlave.h"
mbed_official 0:fd0d7bdfcdc2 23
mbed_official 0:fd0d7bdfcdc2 24 #if DEVICE_I2CSLAVE
mbed_official 0:fd0d7bdfcdc2 25
mbed_official 0:fd0d7bdfcdc2 26 namespace mbed {
mbed_official 0:fd0d7bdfcdc2 27
mbed_official 0:fd0d7bdfcdc2 28 I2CSlave::I2CSlave(PinName sda, PinName scl) {
mbed_official 0:fd0d7bdfcdc2 29 i2c_init(&_i2c, sda, scl);
mbed_official 0:fd0d7bdfcdc2 30 i2c_frequency(&_i2c, 100000);
mbed_official 0:fd0d7bdfcdc2 31 i2c_slave_mode(&_i2c, 1);
mbed_official 0:fd0d7bdfcdc2 32 }
mbed_official 0:fd0d7bdfcdc2 33
mbed_official 0:fd0d7bdfcdc2 34 void I2CSlave::frequency(int hz) {
mbed_official 0:fd0d7bdfcdc2 35 i2c_frequency(&_i2c, hz);
mbed_official 0:fd0d7bdfcdc2 36 }
mbed_official 0:fd0d7bdfcdc2 37
mbed_official 0:fd0d7bdfcdc2 38 void I2CSlave::address(int address) {
mbed_official 0:fd0d7bdfcdc2 39 int addr = (address & 0xFF) | 1;
mbed_official 0:fd0d7bdfcdc2 40 i2c_slave_address(&_i2c, 0, addr, 0);
mbed_official 0:fd0d7bdfcdc2 41 }
mbed_official 0:fd0d7bdfcdc2 42
mbed_official 0:fd0d7bdfcdc2 43 int I2CSlave::receive(void) {
mbed_official 0:fd0d7bdfcdc2 44 return i2c_slave_receive(&_i2c);
mbed_official 0:fd0d7bdfcdc2 45 }
mbed_official 0:fd0d7bdfcdc2 46
mbed_official 0:fd0d7bdfcdc2 47 int I2CSlave::read(char *data, int length) {
mbed_official 0:fd0d7bdfcdc2 48 return i2c_slave_read(&_i2c, data, length);
mbed_official 0:fd0d7bdfcdc2 49 }
mbed_official 0:fd0d7bdfcdc2 50
mbed_official 0:fd0d7bdfcdc2 51 int I2CSlave::read(void) {
mbed_official 0:fd0d7bdfcdc2 52 return i2c_byte_read(&_i2c, 0);
mbed_official 0:fd0d7bdfcdc2 53 }
mbed_official 0:fd0d7bdfcdc2 54
mbed_official 0:fd0d7bdfcdc2 55 int I2CSlave::write(const char *data, int length) {
mbed_official 0:fd0d7bdfcdc2 56 return i2c_slave_write(&_i2c, data, length);
mbed_official 0:fd0d7bdfcdc2 57 }
mbed_official 0:fd0d7bdfcdc2 58
mbed_official 0:fd0d7bdfcdc2 59 int I2CSlave::write(int data) {
mbed_official 0:fd0d7bdfcdc2 60 return i2c_byte_write(&_i2c, data);
mbed_official 0:fd0d7bdfcdc2 61 }
mbed_official 0:fd0d7bdfcdc2 62
mbed_official 0:fd0d7bdfcdc2 63 void I2CSlave::stop(void) {
mbed_official 0:fd0d7bdfcdc2 64 i2c_stop(&_i2c);
mbed_official 0:fd0d7bdfcdc2 65 }
mbed_official 0:fd0d7bdfcdc2 66
mbed_official 0:fd0d7bdfcdc2 67 }
mbed_official 0:fd0d7bdfcdc2 68
mbed_official 0:fd0d7bdfcdc2 69 #endif