mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

drivers/I2CSlave.cpp@181:57724642e740, 2018-02-16 (annotated)

Committer:
AnnaBridge
Date:
Fri Feb 16 16:09:33 2018 +0000
Revision:
181:57724642e740
Parent:
149:156823d33999
Child:
187:0387e8f68319
mbed-dev library. Release version 159.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 149:156823d33999 1 /* mbed Microcontroller Library
<> 149:156823d33999 2 * Copyright (c) 2006-2013 ARM Limited
<> 149:156823d33999 3 *
<> 149:156823d33999 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 149:156823d33999 5 * you may not use this file except in compliance with the License.
<> 149:156823d33999 6 * You may obtain a copy of the License at
<> 149:156823d33999 7 *
<> 149:156823d33999 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 149:156823d33999 9 *
<> 149:156823d33999 10 * Unless required by applicable law or agreed to in writing, software
<> 149:156823d33999 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 149:156823d33999 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 149:156823d33999 13 * See the License for the specific language governing permissions and
<> 149:156823d33999 14 * limitations under the License.
<> 149:156823d33999 15 */
<> 149:156823d33999 16 #include "drivers/I2CSlave.h"
<> 149:156823d33999 17
<> 149:156823d33999 18 #if DEVICE_I2CSLAVE
<> 149:156823d33999 19
<> 149:156823d33999 20 namespace mbed {
<> 149:156823d33999 21
<> 149:156823d33999 22 I2CSlave::I2CSlave(PinName sda, PinName scl) : _i2c() {
<> 149:156823d33999 23 i2c_init(&_i2c, sda, scl);
<> 149:156823d33999 24 i2c_frequency(&_i2c, 100000);
<> 149:156823d33999 25 i2c_slave_mode(&_i2c, 1);
<> 149:156823d33999 26 }
<> 149:156823d33999 27
<> 149:156823d33999 28 void I2CSlave::frequency(int hz) {
<> 149:156823d33999 29 i2c_frequency(&_i2c, hz);
<> 149:156823d33999 30 }
<> 149:156823d33999 31
<> 149:156823d33999 32 void I2CSlave::address(int address) {
<> 149:156823d33999 33 int addr = (address & 0xFF) | 1;
<> 149:156823d33999 34 i2c_slave_address(&_i2c, 0, addr, 0);
<> 149:156823d33999 35 }
<> 149:156823d33999 36
<> 149:156823d33999 37 int I2CSlave::receive(void) {
<> 149:156823d33999 38 return i2c_slave_receive(&_i2c);
<> 149:156823d33999 39 }
<> 149:156823d33999 40
<> 149:156823d33999 41 int I2CSlave::read(char *data, int length) {
<> 149:156823d33999 42 return i2c_slave_read(&_i2c, data, length) != length;
<> 149:156823d33999 43 }
<> 149:156823d33999 44
<> 149:156823d33999 45 int I2CSlave::read(void) {
<> 149:156823d33999 46 return i2c_byte_read(&_i2c, 0);
<> 149:156823d33999 47 }
<> 149:156823d33999 48
<> 149:156823d33999 49 int I2CSlave::write(const char *data, int length) {
<> 149:156823d33999 50 return i2c_slave_write(&_i2c, data, length) != length;
<> 149:156823d33999 51 }
<> 149:156823d33999 52
<> 149:156823d33999 53 int I2CSlave::write(int data) {
<> 149:156823d33999 54 return i2c_byte_write(&_i2c, data);
<> 149:156823d33999 55 }
<> 149:156823d33999 56
<> 149:156823d33999 57 void I2CSlave::stop(void) {
<> 149:156823d33999 58 i2c_stop(&_i2c);
<> 149:156823d33999 59 }
<> 149:156823d33999 60
<> 149:156823d33999 61 }
<> 149:156823d33999 62
<> 149:156823d33999 63 #endif