Yihui Xiong / mbed-src-nrf51822

customized mbed library sources for nrf51822

Dependents:   Grove_Node Potentiometer BLE_Beacon I2C_Scanner

common/I2CSlave.cpp@0:700cadd8b708, 2014-11-04 (annotated)

Committer:
yihui
Date:
Tue Nov 04 07:38:53 2014 +0000
Revision:
0:700cadd8b708
customized mbed-src library for nrf51822

Who changed what in which revision?

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yihui 0:700cadd8b708 1 /* mbed Microcontroller Library
yihui 0:700cadd8b708 2 * Copyright (c) 2006-2013 ARM Limited
yihui 0:700cadd8b708 3 *
yihui 0:700cadd8b708 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 0:700cadd8b708 5 * you may not use this file except in compliance with the License.
yihui 0:700cadd8b708 6 * You may obtain a copy of the License at
yihui 0:700cadd8b708 7 *
yihui 0:700cadd8b708 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 0:700cadd8b708 9 *
yihui 0:700cadd8b708 10 * Unless required by applicable law or agreed to in writing, software
yihui 0:700cadd8b708 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 0:700cadd8b708 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 0:700cadd8b708 13 * See the License for the specific language governing permissions and
yihui 0:700cadd8b708 14 * limitations under the License.
yihui 0:700cadd8b708 15 */
yihui 0:700cadd8b708 16 #include "I2CSlave.h"
yihui 0:700cadd8b708 17
yihui 0:700cadd8b708 18 #if DEVICE_I2CSLAVE
yihui 0:700cadd8b708 19
yihui 0:700cadd8b708 20 namespace mbed {
yihui 0:700cadd8b708 21
yihui 0:700cadd8b708 22 I2CSlave::I2CSlave(PinName sda, PinName scl) : _i2c() {
yihui 0:700cadd8b708 23 i2c_init(&_i2c, sda, scl);
yihui 0:700cadd8b708 24 i2c_frequency(&_i2c, 100000);
yihui 0:700cadd8b708 25 i2c_slave_mode(&_i2c, 1);
yihui 0:700cadd8b708 26 }
yihui 0:700cadd8b708 27
yihui 0:700cadd8b708 28 void I2CSlave::frequency(int hz) {
yihui 0:700cadd8b708 29 i2c_frequency(&_i2c, hz);
yihui 0:700cadd8b708 30 }
yihui 0:700cadd8b708 31
yihui 0:700cadd8b708 32 void I2CSlave::address(int address) {
yihui 0:700cadd8b708 33 int addr = (address & 0xFF) | 1;
yihui 0:700cadd8b708 34 i2c_slave_address(&_i2c, 0, addr, 0);
yihui 0:700cadd8b708 35 }
yihui 0:700cadd8b708 36
yihui 0:700cadd8b708 37 int I2CSlave::receive(void) {
yihui 0:700cadd8b708 38 return i2c_slave_receive(&_i2c);
yihui 0:700cadd8b708 39 }
yihui 0:700cadd8b708 40
yihui 0:700cadd8b708 41 int I2CSlave::read(char *data, int length) {
yihui 0:700cadd8b708 42 return i2c_slave_read(&_i2c, data, length) != length;
yihui 0:700cadd8b708 43 }
yihui 0:700cadd8b708 44
yihui 0:700cadd8b708 45 int I2CSlave::read(void) {
yihui 0:700cadd8b708 46 return i2c_byte_read(&_i2c, 0);
yihui 0:700cadd8b708 47 }
yihui 0:700cadd8b708 48
yihui 0:700cadd8b708 49 int I2CSlave::write(const char *data, int length) {
yihui 0:700cadd8b708 50 return i2c_slave_write(&_i2c, data, length) != length;
yihui 0:700cadd8b708 51 }
yihui 0:700cadd8b708 52
yihui 0:700cadd8b708 53 int I2CSlave::write(int data) {
yihui 0:700cadd8b708 54 return i2c_byte_write(&_i2c, data);
yihui 0:700cadd8b708 55 }
yihui 0:700cadd8b708 56
yihui 0:700cadd8b708 57 void I2CSlave::stop(void) {
yihui 0:700cadd8b708 58 i2c_stop(&_i2c);
yihui 0:700cadd8b708 59 }
yihui 0:700cadd8b708 60
yihui 0:700cadd8b708 61 }
yihui 0:700cadd8b708 62
yihui 0:700cadd8b708 63 #endif