Василий Басалаев / mbed-I2CIO

Modification of mbed-src library only for STM32F030F4, very cheap microcontroller in 20-Pin TSSOP package, with 16Kbytes of Flash and 4Kbytes of Ram. **Target for online compilator must be Nucleo 32F030R8.** 01.02.2018 Acosinwork: Fork of mbed-STM32F030F4 library. Support for Troyka GPIO expander by Amperka. http://amperka.ru/product/troyka-gpio-expander

Fork of mbed-STM32F030F4 by Nothing Special

common/I2CSlave.cpp@12:6f07dd7cbe47, 2018-02-01 (annotated)

Committer:
acosinwork
Date:
Thu Feb 01 10:37:10 2018 +0000
Revision:
12:6f07dd7cbe47
Parent:
0:38ccae254a29 
Change pin mapping and set internall oscillator as default. Fork to support Troyka GPIO expander (I2C I/O); http://amperka.ru/product/troyka-gpio-expander

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mega64 0:38ccae254a29 1 /* mbed Microcontroller Library
mega64 0:38ccae254a29 2 * Copyright (c) 2006-2013 ARM Limited
mega64 0:38ccae254a29 3 *
mega64 0:38ccae254a29 4 * Licensed under the Apache License, Version 2.0 (the "License");
mega64 0:38ccae254a29 5 * you may not use this file except in compliance with the License.
mega64 0:38ccae254a29 6 * You may obtain a copy of the License at
mega64 0:38ccae254a29 7 *
mega64 0:38ccae254a29 8 * http://www.apache.org/licenses/LICENSE-2.0
mega64 0:38ccae254a29 9 *
mega64 0:38ccae254a29 10 * Unless required by applicable law or agreed to in writing, software
mega64 0:38ccae254a29 11 * distributed under the License is distributed on an "AS IS" BASIS,
mega64 0:38ccae254a29 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mega64 0:38ccae254a29 13 * See the License for the specific language governing permissions and
mega64 0:38ccae254a29 14 * limitations under the License.
mega64 0:38ccae254a29 15 */
mega64 0:38ccae254a29 16 #include "I2CSlave.h"
mega64 0:38ccae254a29 17
mega64 0:38ccae254a29 18 #if DEVICE_I2CSLAVE
mega64 0:38ccae254a29 19
mega64 0:38ccae254a29 20 namespace mbed {
mega64 0:38ccae254a29 21
mega64 0:38ccae254a29 22 I2CSlave::I2CSlave(PinName sda, PinName scl) : _i2c() {
mega64 0:38ccae254a29 23 i2c_init(&_i2c, sda, scl);
mega64 0:38ccae254a29 24 i2c_frequency(&_i2c, 100000);
mega64 0:38ccae254a29 25 i2c_slave_mode(&_i2c, 1);
mega64 0:38ccae254a29 26 }
mega64 0:38ccae254a29 27
mega64 0:38ccae254a29 28 void I2CSlave::frequency(int hz) {
mega64 0:38ccae254a29 29 i2c_frequency(&_i2c, hz);
mega64 0:38ccae254a29 30 }
mega64 0:38ccae254a29 31
mega64 0:38ccae254a29 32 void I2CSlave::address(int address) {
mega64 0:38ccae254a29 33 int addr = (address & 0xFF) | 1;
mega64 0:38ccae254a29 34 i2c_slave_address(&_i2c, 0, addr, 0);
mega64 0:38ccae254a29 35 }
mega64 0:38ccae254a29 36
mega64 0:38ccae254a29 37 int I2CSlave::receive(void) {
mega64 0:38ccae254a29 38 return i2c_slave_receive(&_i2c);
mega64 0:38ccae254a29 39 }
mega64 0:38ccae254a29 40
mega64 0:38ccae254a29 41 int I2CSlave::read(char *data, int length) {
mega64 0:38ccae254a29 42 return i2c_slave_read(&_i2c, data, length) != length;
mega64 0:38ccae254a29 43 }
mega64 0:38ccae254a29 44
mega64 0:38ccae254a29 45 int I2CSlave::read(void) {
mega64 0:38ccae254a29 46 return i2c_byte_read(&_i2c, 0);
mega64 0:38ccae254a29 47 }
mega64 0:38ccae254a29 48
mega64 0:38ccae254a29 49 int I2CSlave::write(const char *data, int length) {
mega64 0:38ccae254a29 50 return i2c_slave_write(&_i2c, data, length) != length;
mega64 0:38ccae254a29 51 }
mega64 0:38ccae254a29 52
mega64 0:38ccae254a29 53 int I2CSlave::write(int data) {
mega64 0:38ccae254a29 54 return i2c_byte_write(&_i2c, data);
mega64 0:38ccae254a29 55 }
mega64 0:38ccae254a29 56
mega64 0:38ccae254a29 57 void I2CSlave::stop(void) {
mega64 0:38ccae254a29 58 i2c_stop(&_i2c);
mega64 0:38ccae254a29 59 }
mega64 0:38ccae254a29 60
mega64 0:38ccae254a29 61 }
mega64 0:38ccae254a29 62
mega64 0:38ccae254a29 63 #endif