Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/drivers/I2CSlave.cpp@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

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marcozecchini 0:9fca2b23d0ba 1 /* mbed Microcontroller Library
marcozecchini 0:9fca2b23d0ba 2 * Copyright (c) 2006-2013 ARM Limited
marcozecchini 0:9fca2b23d0ba 3 *
marcozecchini 0:9fca2b23d0ba 4 * Licensed under the Apache License, Version 2.0 (the "License");
marcozecchini 0:9fca2b23d0ba 5 * you may not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 6 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 7 *
marcozecchini 0:9fca2b23d0ba 8 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 9 *
marcozecchini 0:9fca2b23d0ba 10 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 11 * distributed under the License is distributed on an "AS IS" BASIS,
marcozecchini 0:9fca2b23d0ba 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 13 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 14 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 15 */
marcozecchini 0:9fca2b23d0ba 16 #include "drivers/I2CSlave.h"
marcozecchini 0:9fca2b23d0ba 17
marcozecchini 0:9fca2b23d0ba 18 #if DEVICE_I2CSLAVE
marcozecchini 0:9fca2b23d0ba 19
marcozecchini 0:9fca2b23d0ba 20 namespace mbed {
marcozecchini 0:9fca2b23d0ba 21
marcozecchini 0:9fca2b23d0ba 22 I2CSlave::I2CSlave(PinName sda, PinName scl) : _i2c() {
marcozecchini 0:9fca2b23d0ba 23 i2c_init(&_i2c, sda, scl);
marcozecchini 0:9fca2b23d0ba 24 i2c_frequency(&_i2c, 100000);
marcozecchini 0:9fca2b23d0ba 25 i2c_slave_mode(&_i2c, 1);
marcozecchini 0:9fca2b23d0ba 26 }
marcozecchini 0:9fca2b23d0ba 27
marcozecchini 0:9fca2b23d0ba 28 void I2CSlave::frequency(int hz) {
marcozecchini 0:9fca2b23d0ba 29 i2c_frequency(&_i2c, hz);
marcozecchini 0:9fca2b23d0ba 30 }
marcozecchini 0:9fca2b23d0ba 31
marcozecchini 0:9fca2b23d0ba 32 void I2CSlave::address(int address) {
marcozecchini 0:9fca2b23d0ba 33 int addr = (address & 0xFF) | 1;
marcozecchini 0:9fca2b23d0ba 34 i2c_slave_address(&_i2c, 0, addr, 0);
marcozecchini 0:9fca2b23d0ba 35 }
marcozecchini 0:9fca2b23d0ba 36
marcozecchini 0:9fca2b23d0ba 37 int I2CSlave::receive(void) {
marcozecchini 0:9fca2b23d0ba 38 return i2c_slave_receive(&_i2c);
marcozecchini 0:9fca2b23d0ba 39 }
marcozecchini 0:9fca2b23d0ba 40
marcozecchini 0:9fca2b23d0ba 41 int I2CSlave::read(char *data, int length) {
marcozecchini 0:9fca2b23d0ba 42 return i2c_slave_read(&_i2c, data, length) != length;
marcozecchini 0:9fca2b23d0ba 43 }
marcozecchini 0:9fca2b23d0ba 44
marcozecchini 0:9fca2b23d0ba 45 int I2CSlave::read(void) {
marcozecchini 0:9fca2b23d0ba 46 return i2c_byte_read(&_i2c, 0);
marcozecchini 0:9fca2b23d0ba 47 }
marcozecchini 0:9fca2b23d0ba 48
marcozecchini 0:9fca2b23d0ba 49 int I2CSlave::write(const char *data, int length) {
marcozecchini 0:9fca2b23d0ba 50 return i2c_slave_write(&_i2c, data, length) != length;
marcozecchini 0:9fca2b23d0ba 51 }
marcozecchini 0:9fca2b23d0ba 52
marcozecchini 0:9fca2b23d0ba 53 int I2CSlave::write(int data) {
marcozecchini 0:9fca2b23d0ba 54 return i2c_byte_write(&_i2c, data);
marcozecchini 0:9fca2b23d0ba 55 }
marcozecchini 0:9fca2b23d0ba 56
marcozecchini 0:9fca2b23d0ba 57 void I2CSlave::stop(void) {
marcozecchini 0:9fca2b23d0ba 58 i2c_stop(&_i2c);
marcozecchini 0:9fca2b23d0ba 59 }
marcozecchini 0:9fca2b23d0ba 60
marcozecchini 0:9fca2b23d0ba 61 }
marcozecchini 0:9fca2b23d0ba 62
marcozecchini 0:9fca2b23d0ba 63 #endif