Aravind Vadali / mbed-src-AV

mbed.h library with any bug fixes AV finds.

Dependents:   micromouse4_encoder_testing PID_Test Lab1_Test WorkingPID ... more

common/I2CSlave.cpp@1:ebce2ad32f95, 2015-11-02 (annotated)

Committer:
aravindsv
Date:
Mon Nov 02 03:07:12 2015 +0000
Revision:
1:ebce2ad32f95
Parent:
0:ba7650f404af 
Changed the RCC timeout value to 500 ms, so total code startup time before program starts running is ~1s. Hopefully no side-effects from lower startup timeouts

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aravindsv 0:ba7650f404af 1 /* mbed Microcontroller Library
aravindsv 0:ba7650f404af 2 * Copyright (c) 2006-2013 ARM Limited
aravindsv 0:ba7650f404af 3 *
aravindsv 0:ba7650f404af 4 * Licensed under the Apache License, Version 2.0 (the "License");
aravindsv 0:ba7650f404af 5 * you may not use this file except in compliance with the License.
aravindsv 0:ba7650f404af 6 * You may obtain a copy of the License at
aravindsv 0:ba7650f404af 7 *
aravindsv 0:ba7650f404af 8 * http://www.apache.org/licenses/LICENSE-2.0
aravindsv 0:ba7650f404af 9 *
aravindsv 0:ba7650f404af 10 * Unless required by applicable law or agreed to in writing, software
aravindsv 0:ba7650f404af 11 * distributed under the License is distributed on an "AS IS" BASIS,
aravindsv 0:ba7650f404af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
aravindsv 0:ba7650f404af 13 * See the License for the specific language governing permissions and
aravindsv 0:ba7650f404af 14 * limitations under the License.
aravindsv 0:ba7650f404af 15 */
aravindsv 0:ba7650f404af 16 #include "I2CSlave.h"
aravindsv 0:ba7650f404af 17
aravindsv 0:ba7650f404af 18 #if DEVICE_I2CSLAVE
aravindsv 0:ba7650f404af 19
aravindsv 0:ba7650f404af 20 namespace mbed {
aravindsv 0:ba7650f404af 21
aravindsv 0:ba7650f404af 22 I2CSlave::I2CSlave(PinName sda, PinName scl) : _i2c() {
aravindsv 0:ba7650f404af 23 i2c_init(&_i2c, sda, scl);
aravindsv 0:ba7650f404af 24 i2c_frequency(&_i2c, 100000);
aravindsv 0:ba7650f404af 25 i2c_slave_mode(&_i2c, 1);
aravindsv 0:ba7650f404af 26 }
aravindsv 0:ba7650f404af 27
aravindsv 0:ba7650f404af 28 void I2CSlave::frequency(int hz) {
aravindsv 0:ba7650f404af 29 i2c_frequency(&_i2c, hz);
aravindsv 0:ba7650f404af 30 }
aravindsv 0:ba7650f404af 31
aravindsv 0:ba7650f404af 32 void I2CSlave::address(int address) {
aravindsv 0:ba7650f404af 33 int addr = (address & 0xFF) | 1;
aravindsv 0:ba7650f404af 34 i2c_slave_address(&_i2c, 0, addr, 0);
aravindsv 0:ba7650f404af 35 }
aravindsv 0:ba7650f404af 36
aravindsv 0:ba7650f404af 37 int I2CSlave::receive(void) {
aravindsv 0:ba7650f404af 38 return i2c_slave_receive(&_i2c);
aravindsv 0:ba7650f404af 39 }
aravindsv 0:ba7650f404af 40
aravindsv 0:ba7650f404af 41 int I2CSlave::read(char *data, int length) {
aravindsv 0:ba7650f404af 42 return i2c_slave_read(&_i2c, data, length) != length;
aravindsv 0:ba7650f404af 43 }
aravindsv 0:ba7650f404af 44
aravindsv 0:ba7650f404af 45 int I2CSlave::read(void) {
aravindsv 0:ba7650f404af 46 return i2c_byte_read(&_i2c, 0);
aravindsv 0:ba7650f404af 47 }
aravindsv 0:ba7650f404af 48
aravindsv 0:ba7650f404af 49 int I2CSlave::write(const char *data, int length) {
aravindsv 0:ba7650f404af 50 return i2c_slave_write(&_i2c, data, length) != length;
aravindsv 0:ba7650f404af 51 }
aravindsv 0:ba7650f404af 52
aravindsv 0:ba7650f404af 53 int I2CSlave::write(int data) {
aravindsv 0:ba7650f404af 54 return i2c_byte_write(&_i2c, data);
aravindsv 0:ba7650f404af 55 }
aravindsv 0:ba7650f404af 56
aravindsv 0:ba7650f404af 57 void I2CSlave::stop(void) {
aravindsv 0:ba7650f404af 58 i2c_stop(&_i2c);
aravindsv 0:ba7650f404af 59 }
aravindsv 0:ba7650f404af 60
aravindsv 0:ba7650f404af 61 }
aravindsv 0:ba7650f404af 62
aravindsv 0:ba7650f404af 63 #endif