takashi kadono / Mbed OS Nucleo_446

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Dependencies:   ssd1331

mbed-os/drivers/I2CSlave.cpp@3:f3764f852aa8, 2018-10-11 (annotated)

Committer:
kadonotakashi
Date:
Thu Oct 11 02:27:46 2018 +0000
Revision:
3:f3764f852aa8
Parent:
0:8fdf9a60065b 
Nucreo 446 + SSD1331 test version;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kadonotakashi 0:8fdf9a60065b 1 /* mbed Microcontroller Library
kadonotakashi 0:8fdf9a60065b 2 * Copyright (c) 2006-2013 ARM Limited
kadonotakashi 0:8fdf9a60065b 3 *
kadonotakashi 0:8fdf9a60065b 4 * Licensed under the Apache License, Version 2.0 (the "License");
kadonotakashi 0:8fdf9a60065b 5 * you may not use this file except in compliance with the License.
kadonotakashi 0:8fdf9a60065b 6 * You may obtain a copy of the License at
kadonotakashi 0:8fdf9a60065b 7 *
kadonotakashi 0:8fdf9a60065b 8 * http://www.apache.org/licenses/LICENSE-2.0
kadonotakashi 0:8fdf9a60065b 9 *
kadonotakashi 0:8fdf9a60065b 10 * Unless required by applicable law or agreed to in writing, software
kadonotakashi 0:8fdf9a60065b 11 * distributed under the License is distributed on an "AS IS" BASIS,
kadonotakashi 0:8fdf9a60065b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kadonotakashi 0:8fdf9a60065b 13 * See the License for the specific language governing permissions and
kadonotakashi 0:8fdf9a60065b 14 * limitations under the License.
kadonotakashi 0:8fdf9a60065b 15 */
kadonotakashi 0:8fdf9a60065b 16 #include "drivers/I2CSlave.h"
kadonotakashi 0:8fdf9a60065b 17
kadonotakashi 0:8fdf9a60065b 18 #if DEVICE_I2CSLAVE
kadonotakashi 0:8fdf9a60065b 19
kadonotakashi 0:8fdf9a60065b 20 namespace mbed {
kadonotakashi 0:8fdf9a60065b 21
kadonotakashi 0:8fdf9a60065b 22 I2CSlave::I2CSlave(PinName sda, PinName scl) : _i2c()
kadonotakashi 0:8fdf9a60065b 23 {
kadonotakashi 0:8fdf9a60065b 24 i2c_init(&_i2c, sda, scl);
kadonotakashi 0:8fdf9a60065b 25 i2c_frequency(&_i2c, 100000);
kadonotakashi 0:8fdf9a60065b 26 i2c_slave_mode(&_i2c, 1);
kadonotakashi 0:8fdf9a60065b 27 }
kadonotakashi 0:8fdf9a60065b 28
kadonotakashi 0:8fdf9a60065b 29 void I2CSlave::frequency(int hz)
kadonotakashi 0:8fdf9a60065b 30 {
kadonotakashi 0:8fdf9a60065b 31 i2c_frequency(&_i2c, hz);
kadonotakashi 0:8fdf9a60065b 32 }
kadonotakashi 0:8fdf9a60065b 33
kadonotakashi 0:8fdf9a60065b 34 void I2CSlave::address(int address)
kadonotakashi 0:8fdf9a60065b 35 {
kadonotakashi 0:8fdf9a60065b 36 int addr = (address & 0xFF) | 1;
kadonotakashi 0:8fdf9a60065b 37 i2c_slave_address(&_i2c, 0, addr, 0);
kadonotakashi 0:8fdf9a60065b 38 }
kadonotakashi 0:8fdf9a60065b 39
kadonotakashi 0:8fdf9a60065b 40 int I2CSlave::receive(void)
kadonotakashi 0:8fdf9a60065b 41 {
kadonotakashi 0:8fdf9a60065b 42 return i2c_slave_receive(&_i2c);
kadonotakashi 0:8fdf9a60065b 43 }
kadonotakashi 0:8fdf9a60065b 44
kadonotakashi 0:8fdf9a60065b 45 int I2CSlave::read(char *data, int length)
kadonotakashi 0:8fdf9a60065b 46 {
kadonotakashi 0:8fdf9a60065b 47 return i2c_slave_read(&_i2c, data, length) != length;
kadonotakashi 0:8fdf9a60065b 48 }
kadonotakashi 0:8fdf9a60065b 49
kadonotakashi 0:8fdf9a60065b 50 int I2CSlave::read(void)
kadonotakashi 0:8fdf9a60065b 51 {
kadonotakashi 0:8fdf9a60065b 52 return i2c_byte_read(&_i2c, 0);
kadonotakashi 0:8fdf9a60065b 53 }
kadonotakashi 0:8fdf9a60065b 54
kadonotakashi 0:8fdf9a60065b 55 int I2CSlave::write(const char *data, int length)
kadonotakashi 0:8fdf9a60065b 56 {
kadonotakashi 0:8fdf9a60065b 57 return i2c_slave_write(&_i2c, data, length) != length;
kadonotakashi 0:8fdf9a60065b 58 }
kadonotakashi 0:8fdf9a60065b 59
kadonotakashi 0:8fdf9a60065b 60 int I2CSlave::write(int data)
kadonotakashi 0:8fdf9a60065b 61 {
kadonotakashi 0:8fdf9a60065b 62 return i2c_byte_write(&_i2c, data);
kadonotakashi 0:8fdf9a60065b 63 }
kadonotakashi 0:8fdf9a60065b 64
kadonotakashi 0:8fdf9a60065b 65 void I2CSlave::stop(void)
kadonotakashi 0:8fdf9a60065b 66 {
kadonotakashi 0:8fdf9a60065b 67 i2c_stop(&_i2c);
kadonotakashi 0:8fdf9a60065b 68 }
kadonotakashi 0:8fdf9a60065b 69
kadonotakashi 0:8fdf9a60065b 70 }
kadonotakashi 0:8fdf9a60065b 71
kadonotakashi 0:8fdf9a60065b 72 #endif