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SAKURA Internet IoT Communication Module Library for mbed

Dependents:   patlite_sakuraio sakuraio_lte_firmwareupdater shownet2017-iinebutton patlite_sakuraio_stack ... more

SAKURA Internet IoT Communication Module Library for mbed

Sakura Communication Module (with sakura.io) library for mbed.

Support

This library supports following products.

Reference

Please see the datasheet.

License

The MIT License (MIT)

Copyright (c) SAKURA Internet Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

SakuraIO_I2C.cpp@7:9feee88e7cbc, 2017-09-07 (annotated)

Committer:
misodengaku
Date:
Thu Sep 07 11:45:06 2017 +0900
Revision:
7:9feee88e7cbc
Parent:
3:c54a1eba22c4
Child:
11:16e726ca39c6
fix compile error with mbed library >rev146 and applied mbed IDE formatter.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
misodengaku 7:9feee88e7cbc 1 /* SAKURA Internet IoT Communication Module Library for mbed
misodengaku 7:9feee88e7cbc 2 *
misodengaku 7:9feee88e7cbc 3 * The MIT License (MIT)
misodengaku 7:9feee88e7cbc 4 *
misodengaku 7:9feee88e7cbc 5 * Copyright (c) SAKURA Internet Inc.
misodengaku 7:9feee88e7cbc 6 *
misodengaku 7:9feee88e7cbc 7 * Permission is hereby granted, free of charge, to any person obtaining a copy
misodengaku 7:9feee88e7cbc 8 * of this software and associated documentation files (the "Software"),
misodengaku 7:9feee88e7cbc 9 * to deal in the Software without restriction, including without limitation
misodengaku 7:9feee88e7cbc 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
misodengaku 7:9feee88e7cbc 11 * and/or sell copies of the Software, and to permit persons to whom the Software
misodengaku 7:9feee88e7cbc 12 * is furnished to do so, subject to the following conditions:
misodengaku 7:9feee88e7cbc 13 *
misodengaku 7:9feee88e7cbc 14 * The above copyright notice and this permission notice shall be included
misodengaku 7:9feee88e7cbc 15 * in all copies or substantial portions of the Software.
misodengaku 7:9feee88e7cbc 16 *
misodengaku 7:9feee88e7cbc 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
misodengaku 7:9feee88e7cbc 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
misodengaku 7:9feee88e7cbc 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
misodengaku 7:9feee88e7cbc 20 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
misodengaku 7:9feee88e7cbc 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
misodengaku 7:9feee88e7cbc 22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
misodengaku 7:9feee88e7cbc 23 */
misodengaku 7:9feee88e7cbc 24
misodengaku 7:9feee88e7cbc 25 #include "mbed.h"
misodengaku 7:9feee88e7cbc 26 #include "SakuraIO.h"
misodengaku 7:9feee88e7cbc 27 #include "debug.h"
misodengaku 7:9feee88e7cbc 28
misodengaku 7:9feee88e7cbc 29 #define SAKURAIO_SLAVE_ADDR 0x4F
misodengaku 7:9feee88e7cbc 30
misodengaku 7:9feee88e7cbc 31 #define MODE_IDLE 0x00
misodengaku 7:9feee88e7cbc 32 #define MODE_WRITE 0x01
misodengaku 7:9feee88e7cbc 33 #define MODE_READ 0x02
misodengaku 7:9feee88e7cbc 34
misodengaku 7:9feee88e7cbc 35 void SakuraIO_I2C::begin()
misodengaku 7:9feee88e7cbc 36 {
misodengaku 7:9feee88e7cbc 37 mode = MODE_IDLE;
misodengaku 7:9feee88e7cbc 38 }
misodengaku 7:9feee88e7cbc 39
misodengaku 7:9feee88e7cbc 40 void SakuraIO_I2C::end()
misodengaku 7:9feee88e7cbc 41 {
misodengaku 7:9feee88e7cbc 42 switch (mode) {
misodengaku 7:9feee88e7cbc 43 case MODE_WRITE:
misodengaku 7:9feee88e7cbc 44 i2c.stop();
misodengaku 7:9feee88e7cbc 45 break;
misodengaku 7:9feee88e7cbc 46 case MODE_READ:
misodengaku 7:9feee88e7cbc 47 while (_length > 0) {
misodengaku 7:9feee88e7cbc 48 _length--;
misodengaku 7:9feee88e7cbc 49 i2c.read(_length > 0 ? 1 : 0);
misodengaku 7:9feee88e7cbc 50 }
misodengaku 7:9feee88e7cbc 51 i2c.stop();
misodengaku 7:9feee88e7cbc 52 break;
misodengaku 7:9feee88e7cbc 53 }
misodengaku 7:9feee88e7cbc 54
misodengaku 7:9feee88e7cbc 55 mode = MODE_IDLE;
misodengaku 7:9feee88e7cbc 56 }
misodengaku 7:9feee88e7cbc 57
misodengaku 7:9feee88e7cbc 58 void SakuraIO_I2C::sendByte(uint8_t data)
misodengaku 7:9feee88e7cbc 59 {
misodengaku 7:9feee88e7cbc 60 if (mode != MODE_WRITE) {
misodengaku 7:9feee88e7cbc 61 dbg("beginTr\r\n");
misodengaku 7:9feee88e7cbc 62 i2c.start();
misodengaku 7:9feee88e7cbc 63 i2c.write(SAKURAIO_SLAVE_ADDR << 1);
misodengaku 7:9feee88e7cbc 64 mode = MODE_WRITE;
misodengaku 7:9feee88e7cbc 65 }
misodengaku 7:9feee88e7cbc 66 dbg("Write=%02x\r\n", data);
misodengaku 7:9feee88e7cbc 67 i2c.write(data);
misodengaku 7:9feee88e7cbc 68 }
misodengaku 7:9feee88e7cbc 69
misodengaku 7:9feee88e7cbc 70 uint8_t SakuraIO_I2C::startReceive(uint8_t length)
misodengaku 7:9feee88e7cbc 71 {
misodengaku 7:9feee88e7cbc 72 if (mode != MODE_IDLE) {
misodengaku 7:9feee88e7cbc 73 dbg("endTransmission\r\n");
misodengaku 7:9feee88e7cbc 74 i2c.stop();
misodengaku 7:9feee88e7cbc 75 }
misodengaku 7:9feee88e7cbc 76 dbg("requestForm=%d\r\n", length);
misodengaku 7:9feee88e7cbc 77 _length = length;
misodengaku 7:9feee88e7cbc 78 i2c.start();
misodengaku 7:9feee88e7cbc 79 i2c.write(SAKURAIO_SLAVE_ADDR << 1 | 1);
misodengaku 7:9feee88e7cbc 80 mode = MODE_READ;
misodengaku 7:9feee88e7cbc 81 return 0;
misodengaku 7:9feee88e7cbc 82 }
misodengaku 7:9feee88e7cbc 83
misodengaku 7:9feee88e7cbc 84 uint8_t SakuraIO_I2C::receiveByte()
misodengaku 7:9feee88e7cbc 85 {
misodengaku 7:9feee88e7cbc 86 return receiveByte(false);
misodengaku 7:9feee88e7cbc 87 }
misodengaku 7:9feee88e7cbc 88
misodengaku 7:9feee88e7cbc 89 uint8_t SakuraIO_I2C::receiveByte(bool stop)
misodengaku 7:9feee88e7cbc 90 {
misodengaku 7:9feee88e7cbc 91 uint8_t ret = 0;
misodengaku 7:9feee88e7cbc 92 if (_length > 0) {
misodengaku 7:9feee88e7cbc 93 _length--;
misodengaku 7:9feee88e7cbc 94 ret = i2c.read(_length > 0 ? 1 : 0);
misodengaku 7:9feee88e7cbc 95 }
misodengaku 7:9feee88e7cbc 96 if (stop) {
misodengaku 7:9feee88e7cbc 97 end();
misodengaku 7:9feee88e7cbc 98 }
misodengaku 7:9feee88e7cbc 99 dbg("Read=%d\r\n", ret);
misodengaku 7:9feee88e7cbc 100 return ret;
misodengaku 7:9feee88e7cbc 101 }
misodengaku 7:9feee88e7cbc 102
misodengaku 7:9feee88e7cbc 103 SakuraIO_I2C::SakuraIO_I2C(I2C &_i2c) : i2c(_i2c)
misodengaku 7:9feee88e7cbc 104 {
misodengaku 7:9feee88e7cbc 105 mode = MODE_IDLE;
misodengaku 7:9feee88e7cbc 106 }
misodengaku 7:9feee88e7cbc 107
misodengaku 7:9feee88e7cbc 108 SakuraIO_I2C::SakuraIO_I2C(PinName sda, PinName scl) : i2c_p(new I2C(sda, scl)),
misodengaku 7:9feee88e7cbc 109 i2c(*i2c_p)
misodengaku 7:9feee88e7cbc 110 {
misodengaku 7:9feee88e7cbc 111 mode = MODE_IDLE;
misodengaku 7:9feee88e7cbc 112 }