BA / Mbed OS BaBoRo1

mbed-os/drivers/I2CSlave.cpp@0:380207fcb5c1, 2018-03-29 (annotated)

Committer:
borlanic
Date:
Thu Mar 29 07:02:09 2018 +0000
Revision:
0:380207fcb5c1
Encoder, IMU --> OK; Controller --> in bearbeitung

Who changed what in which revision?

UserRevisionLine numberNew contents of line
borlanic 0:380207fcb5c1 1 /* mbed Microcontroller Library
borlanic 0:380207fcb5c1 2 * Copyright (c) 2006-2013 ARM Limited
borlanic 0:380207fcb5c1 3 *
borlanic 0:380207fcb5c1 4 * Licensed under the Apache License, Version 2.0 (the "License");
borlanic 0:380207fcb5c1 5 * you may not use this file except in compliance with the License.
borlanic 0:380207fcb5c1 6 * You may obtain a copy of the License at
borlanic 0:380207fcb5c1 7 *
borlanic 0:380207fcb5c1 8 * http://www.apache.org/licenses/LICENSE-2.0
borlanic 0:380207fcb5c1 9 *
borlanic 0:380207fcb5c1 10 * Unless required by applicable law or agreed to in writing, software
borlanic 0:380207fcb5c1 11 * distributed under the License is distributed on an "AS IS" BASIS,
borlanic 0:380207fcb5c1 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
borlanic 0:380207fcb5c1 13 * See the License for the specific language governing permissions and
borlanic 0:380207fcb5c1 14 * limitations under the License.
borlanic 0:380207fcb5c1 15 */
borlanic 0:380207fcb5c1 16 #include "drivers/I2CSlave.h"
borlanic 0:380207fcb5c1 17
borlanic 0:380207fcb5c1 18 #if DEVICE_I2CSLAVE
borlanic 0:380207fcb5c1 19
borlanic 0:380207fcb5c1 20 namespace mbed {
borlanic 0:380207fcb5c1 21
borlanic 0:380207fcb5c1 22 I2CSlave::I2CSlave(PinName sda, PinName scl) : _i2c() {
borlanic 0:380207fcb5c1 23 i2c_init(&_i2c, sda, scl);
borlanic 0:380207fcb5c1 24 i2c_frequency(&_i2c, 100000);
borlanic 0:380207fcb5c1 25 i2c_slave_mode(&_i2c, 1);
borlanic 0:380207fcb5c1 26 }
borlanic 0:380207fcb5c1 27
borlanic 0:380207fcb5c1 28 void I2CSlave::frequency(int hz) {
borlanic 0:380207fcb5c1 29 i2c_frequency(&_i2c, hz);
borlanic 0:380207fcb5c1 30 }
borlanic 0:380207fcb5c1 31
borlanic 0:380207fcb5c1 32 void I2CSlave::address(int address) {
borlanic 0:380207fcb5c1 33 int addr = (address & 0xFF) | 1;
borlanic 0:380207fcb5c1 34 i2c_slave_address(&_i2c, 0, addr, 0);
borlanic 0:380207fcb5c1 35 }
borlanic 0:380207fcb5c1 36
borlanic 0:380207fcb5c1 37 int I2CSlave::receive(void) {
borlanic 0:380207fcb5c1 38 return i2c_slave_receive(&_i2c);
borlanic 0:380207fcb5c1 39 }
borlanic 0:380207fcb5c1 40
borlanic 0:380207fcb5c1 41 int I2CSlave::read(char *data, int length) {
borlanic 0:380207fcb5c1 42 return i2c_slave_read(&_i2c, data, length) != length;
borlanic 0:380207fcb5c1 43 }
borlanic 0:380207fcb5c1 44
borlanic 0:380207fcb5c1 45 int I2CSlave::read(void) {
borlanic 0:380207fcb5c1 46 return i2c_byte_read(&_i2c, 0);
borlanic 0:380207fcb5c1 47 }
borlanic 0:380207fcb5c1 48
borlanic 0:380207fcb5c1 49 int I2CSlave::write(const char *data, int length) {
borlanic 0:380207fcb5c1 50 return i2c_slave_write(&_i2c, data, length) != length;
borlanic 0:380207fcb5c1 51 }
borlanic 0:380207fcb5c1 52
borlanic 0:380207fcb5c1 53 int I2CSlave::write(int data) {
borlanic 0:380207fcb5c1 54 return i2c_byte_write(&_i2c, data);
borlanic 0:380207fcb5c1 55 }
borlanic 0:380207fcb5c1 56
borlanic 0:380207fcb5c1 57 void I2CSlave::stop(void) {
borlanic 0:380207fcb5c1 58 i2c_stop(&_i2c);
borlanic 0:380207fcb5c1 59 }
borlanic 0:380207fcb5c1 60
borlanic 0:380207fcb5c1 61 }
borlanic 0:380207fcb5c1 62
borlanic 0:380207fcb5c1 63 #endif