Helmut Schmücker / mbed-src-i2cFix

fix for mbed lib issue 1 (i2c problem) see also https://mbed.org/users/mbed_official/code/mbed/issues/1 affected implementations: LPC11U24, LPC1768, LPC2368, LPC4088

Fork of mbed-src by mbed official

common/I2CSlave.cpp@10:3bc89ef62ce7, 2013-06-14 (annotated)

Committer:
emilmont
Date:
Fri Jun 14 17:49:17 2013 +0100
Revision:
10:3bc89ef62ce7
Parent:
9:0ce32e54c9a7 
Unify mbed library sources

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 10:3bc89ef62ce7 1 /* mbed Microcontroller Library
emilmont 10:3bc89ef62ce7 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 10:3bc89ef62ce7 3 *
emilmont 10:3bc89ef62ce7 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 10:3bc89ef62ce7 5 * you may not use this file except in compliance with the License.
emilmont 10:3bc89ef62ce7 6 * You may obtain a copy of the License at
emilmont 10:3bc89ef62ce7 7 *
emilmont 10:3bc89ef62ce7 8 * http://www.apache.org/licenses/LICENSE-2.0
emilmont 10:3bc89ef62ce7 9 *
emilmont 10:3bc89ef62ce7 10 * Unless required by applicable law or agreed to in writing, software
emilmont 10:3bc89ef62ce7 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 10:3bc89ef62ce7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 10:3bc89ef62ce7 13 * See the License for the specific language governing permissions and
emilmont 10:3bc89ef62ce7 14 * limitations under the License.
emilmont 10:3bc89ef62ce7 15 */
emilmont 10:3bc89ef62ce7 16 #include "I2CSlave.h"
emilmont 10:3bc89ef62ce7 17
emilmont 10:3bc89ef62ce7 18 #if DEVICE_I2CSLAVE
emilmont 10:3bc89ef62ce7 19
emilmont 10:3bc89ef62ce7 20 namespace mbed {
emilmont 10:3bc89ef62ce7 21
emilmont 10:3bc89ef62ce7 22 I2CSlave::I2CSlave(PinName sda, PinName scl) {
emilmont 10:3bc89ef62ce7 23 i2c_init(&_i2c, sda, scl);
emilmont 10:3bc89ef62ce7 24 i2c_frequency(&_i2c, 100000);
emilmont 10:3bc89ef62ce7 25 i2c_slave_mode(&_i2c, 1);
emilmont 10:3bc89ef62ce7 26 }
emilmont 10:3bc89ef62ce7 27
emilmont 10:3bc89ef62ce7 28 void I2CSlave::frequency(int hz) {
emilmont 10:3bc89ef62ce7 29 i2c_frequency(&_i2c, hz);
emilmont 10:3bc89ef62ce7 30 }
emilmont 10:3bc89ef62ce7 31
emilmont 10:3bc89ef62ce7 32 void I2CSlave::address(int address) {
emilmont 10:3bc89ef62ce7 33 int addr = (address & 0xFF) | 1;
emilmont 10:3bc89ef62ce7 34 i2c_slave_address(&_i2c, 0, addr, 0);
emilmont 10:3bc89ef62ce7 35 }
emilmont 10:3bc89ef62ce7 36
emilmont 10:3bc89ef62ce7 37 int I2CSlave::receive(void) {
emilmont 10:3bc89ef62ce7 38 return i2c_slave_receive(&_i2c);
emilmont 10:3bc89ef62ce7 39 }
emilmont 10:3bc89ef62ce7 40
emilmont 10:3bc89ef62ce7 41 int I2CSlave::read(char *data, int length) {
emilmont 10:3bc89ef62ce7 42 return i2c_slave_read(&_i2c, data, length);
emilmont 10:3bc89ef62ce7 43 }
emilmont 10:3bc89ef62ce7 44
emilmont 10:3bc89ef62ce7 45 int I2CSlave::read(void) {
emilmont 10:3bc89ef62ce7 46 return i2c_byte_read(&_i2c, 0);
emilmont 10:3bc89ef62ce7 47 }
emilmont 10:3bc89ef62ce7 48
emilmont 10:3bc89ef62ce7 49 int I2CSlave::write(const char *data, int length) {
emilmont 10:3bc89ef62ce7 50 return i2c_slave_write(&_i2c, data, length);
emilmont 10:3bc89ef62ce7 51 }
emilmont 10:3bc89ef62ce7 52
emilmont 10:3bc89ef62ce7 53 int I2CSlave::write(int data) {
emilmont 10:3bc89ef62ce7 54 return i2c_byte_write(&_i2c, data);
emilmont 10:3bc89ef62ce7 55 }
emilmont 10:3bc89ef62ce7 56
emilmont 10:3bc89ef62ce7 57 void I2CSlave::stop(void) {
emilmont 10:3bc89ef62ce7 58 i2c_stop(&_i2c);
emilmont 10:3bc89ef62ce7 59 }
emilmont 10:3bc89ef62ce7 60
emilmont 10:3bc89ef62ce7 61 }
emilmont 10:3bc89ef62ce7 62
emilmont 10:3bc89ef62ce7 63 #endif