Daniel Vizcaya / Mbed OS 04_RTOS_Embebidos

Entrega 3er corte - sistemas embebidos

mbed-os/drivers/I2CSlave.cpp@1:fcdb45ee95b9, 2018-05-30 (annotated)

Committer:
Bethory
Date:
Wed May 30 04:46:28 2018 +0000
Revision:
1:fcdb45ee95b9
Parent:
0:6ad07c9019fd 
Entrega Final

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Bethory 0:6ad07c9019fd 1 /* mbed Microcontroller Library
Bethory 0:6ad07c9019fd 2 * Copyright (c) 2006-2013 ARM Limited
Bethory 0:6ad07c9019fd 3 *
Bethory 0:6ad07c9019fd 4 * Licensed under the Apache License, Version 2.0 (the "License");
Bethory 0:6ad07c9019fd 5 * you may not use this file except in compliance with the License.
Bethory 0:6ad07c9019fd 6 * You may obtain a copy of the License at
Bethory 0:6ad07c9019fd 7 *
Bethory 0:6ad07c9019fd 8 * http://www.apache.org/licenses/LICENSE-2.0
Bethory 0:6ad07c9019fd 9 *
Bethory 0:6ad07c9019fd 10 * Unless required by applicable law or agreed to in writing, software
Bethory 0:6ad07c9019fd 11 * distributed under the License is distributed on an "AS IS" BASIS,
Bethory 0:6ad07c9019fd 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Bethory 0:6ad07c9019fd 13 * See the License for the specific language governing permissions and
Bethory 0:6ad07c9019fd 14 * limitations under the License.
Bethory 0:6ad07c9019fd 15 */
Bethory 0:6ad07c9019fd 16 #include "drivers/I2CSlave.h"
Bethory 0:6ad07c9019fd 17
Bethory 0:6ad07c9019fd 18 #if DEVICE_I2CSLAVE
Bethory 0:6ad07c9019fd 19
Bethory 0:6ad07c9019fd 20 namespace mbed {
Bethory 0:6ad07c9019fd 21
Bethory 0:6ad07c9019fd 22 I2CSlave::I2CSlave(PinName sda, PinName scl) : _i2c() {
Bethory 0:6ad07c9019fd 23 i2c_init(&_i2c, sda, scl);
Bethory 0:6ad07c9019fd 24 i2c_frequency(&_i2c, 100000);
Bethory 0:6ad07c9019fd 25 i2c_slave_mode(&_i2c, 1);
Bethory 0:6ad07c9019fd 26 }
Bethory 0:6ad07c9019fd 27
Bethory 0:6ad07c9019fd 28 void I2CSlave::frequency(int hz) {
Bethory 0:6ad07c9019fd 29 i2c_frequency(&_i2c, hz);
Bethory 0:6ad07c9019fd 30 }
Bethory 0:6ad07c9019fd 31
Bethory 0:6ad07c9019fd 32 void I2CSlave::address(int address) {
Bethory 0:6ad07c9019fd 33 int addr = (address & 0xFF) | 1;
Bethory 0:6ad07c9019fd 34 i2c_slave_address(&_i2c, 0, addr, 0);
Bethory 0:6ad07c9019fd 35 }
Bethory 0:6ad07c9019fd 36
Bethory 0:6ad07c9019fd 37 int I2CSlave::receive(void) {
Bethory 0:6ad07c9019fd 38 return i2c_slave_receive(&_i2c);
Bethory 0:6ad07c9019fd 39 }
Bethory 0:6ad07c9019fd 40
Bethory 0:6ad07c9019fd 41 int I2CSlave::read(char *data, int length) {
Bethory 0:6ad07c9019fd 42 return i2c_slave_read(&_i2c, data, length) != length;
Bethory 0:6ad07c9019fd 43 }
Bethory 0:6ad07c9019fd 44
Bethory 0:6ad07c9019fd 45 int I2CSlave::read(void) {
Bethory 0:6ad07c9019fd 46 return i2c_byte_read(&_i2c, 0);
Bethory 0:6ad07c9019fd 47 }
Bethory 0:6ad07c9019fd 48
Bethory 0:6ad07c9019fd 49 int I2CSlave::write(const char *data, int length) {
Bethory 0:6ad07c9019fd 50 return i2c_slave_write(&_i2c, data, length) != length;
Bethory 0:6ad07c9019fd 51 }
Bethory 0:6ad07c9019fd 52
Bethory 0:6ad07c9019fd 53 int I2CSlave::write(int data) {
Bethory 0:6ad07c9019fd 54 return i2c_byte_write(&_i2c, data);
Bethory 0:6ad07c9019fd 55 }
Bethory 0:6ad07c9019fd 56
Bethory 0:6ad07c9019fd 57 void I2CSlave::stop(void) {
Bethory 0:6ad07c9019fd 58 i2c_stop(&_i2c);
Bethory 0:6ad07c9019fd 59 }
Bethory 0:6ad07c9019fd 60
Bethory 0:6ad07c9019fd 61 }
Bethory 0:6ad07c9019fd 62
Bethory 0:6ad07c9019fd 63 #endif