CQ Publishing / Mbed 2 deprecated tg_201410s8_AD7714

Transistor Gijutsu, October 2014, Special Features Chapter 8，Software of the thermistor thermometer of 0.001 ° resolution， トランジスタ技術2014年10月号　特集第8章のソフトウェア　0.001℃分解能で気配もキャッチ「超敏感肌温度計」

Dependencies:   USBDevice mbed

Information

tg_201410s8_AD7714 トランジスタ技術 2014年 10月号 第8章のソフトウェア

Program for Section 8 in October. 2014 issue of the Transistor Gijutsu
(Japanese electronics magazine)

概要

このプログラムは、サーミスタの抵抗値変化をAD7714(24bitADC)で測定し、抵抗値を温度値に変換することで、0.001℃程度の分解能で温度変化を測定します。

ファイル

このソフトウエアは、次のファイルから構成されています。

  • AD7714.cpp - AD7714の内部レジスタを設定
  • Thermistor.cpp - サーミスタの抵抗値から温度値に変換
  • ExpAvr.cpp - 指数平均によるソフトウエアＬＰＦ
  • main.cpp - main()関数

詳細については、10月号の記事および上記ファイル中のコメントを参照してください。

USBDevice/USBSerial/CircBuffer.h@0:de885a6da962, 2014-08-29 (annotated)

Committer:
Dance
Date:
Fri Aug 29 08:38:36 2014 +0000
Revision:
0:de885a6da962
Transistor Gijutsu, October 2014, Special Features Chapter 8; ????????2014?10??????8????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Dance 0:de885a6da962 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
Dance 0:de885a6da962 2 *
Dance 0:de885a6da962 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
Dance 0:de885a6da962 4 * and associated documentation files (the "Software"), to deal in the Software without
Dance 0:de885a6da962 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
Dance 0:de885a6da962 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
Dance 0:de885a6da962 7 * Software is furnished to do so, subject to the following conditions:
Dance 0:de885a6da962 8 *
Dance 0:de885a6da962 9 * The above copyright notice and this permission notice shall be included in all copies or
Dance 0:de885a6da962 10 * substantial portions of the Software.
Dance 0:de885a6da962 11 *
Dance 0:de885a6da962 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
Dance 0:de885a6da962 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Dance 0:de885a6da962 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
Dance 0:de885a6da962 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Dance 0:de885a6da962 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Dance 0:de885a6da962 17 */
Dance 0:de885a6da962 18
Dance 0:de885a6da962 19 #ifndef CIRCBUFFER_H
Dance 0:de885a6da962 20 #define CIRCBUFFER_H
Dance 0:de885a6da962 21
Dance 0:de885a6da962 22 template <class T>
Dance 0:de885a6da962 23 class CircBuffer {
Dance 0:de885a6da962 24 public:
Dance 0:de885a6da962 25 CircBuffer(int length) {
Dance 0:de885a6da962 26 write = 0;
Dance 0:de885a6da962 27 read = 0;
Dance 0:de885a6da962 28 size = length + 1;
Dance 0:de885a6da962 29 buf = (T *)malloc(size * sizeof(T));
Dance 0:de885a6da962 30 };
Dance 0:de885a6da962 31
Dance 0:de885a6da962 32 ~CircBuffer() {
Dance 0:de885a6da962 33 free(buf);
Dance 0:de885a6da962 34 }
Dance 0:de885a6da962 35
Dance 0:de885a6da962 36 bool isFull() {
Dance 0:de885a6da962 37 return ((write + 1) % size == read);
Dance 0:de885a6da962 38 };
Dance 0:de885a6da962 39
Dance 0:de885a6da962 40 bool isEmpty() {
Dance 0:de885a6da962 41 return (read == write);
Dance 0:de885a6da962 42 };
Dance 0:de885a6da962 43
Dance 0:de885a6da962 44 void queue(T k) {
Dance 0:de885a6da962 45 if (isFull()) {
Dance 0:de885a6da962 46 read++;
Dance 0:de885a6da962 47 read %= size;
Dance 0:de885a6da962 48 }
Dance 0:de885a6da962 49 buf[write++] = k;
Dance 0:de885a6da962 50 write %= size;
Dance 0:de885a6da962 51 }
Dance 0:de885a6da962 52
Dance 0:de885a6da962 53 uint16_t available() {
Dance 0:de885a6da962 54 return (write >= read) ? write - read : size - read + write;
Dance 0:de885a6da962 55 };
Dance 0:de885a6da962 56
Dance 0:de885a6da962 57 bool dequeue(T * c) {
Dance 0:de885a6da962 58 bool empty = isEmpty();
Dance 0:de885a6da962 59 if (!empty) {
Dance 0:de885a6da962 60 *c = buf[read++];
Dance 0:de885a6da962 61 read %= size;
Dance 0:de885a6da962 62 }
Dance 0:de885a6da962 63 return(!empty);
Dance 0:de885a6da962 64 };
Dance 0:de885a6da962 65
Dance 0:de885a6da962 66 private:
Dance 0:de885a6da962 67 volatile uint16_t write;
Dance 0:de885a6da962 68 volatile uint16_t read;
Dance 0:de885a6da962 69 uint16_t size;
Dance 0:de885a6da962 70 T * buf;
Dance 0:de885a6da962 71 };
Dance 0:de885a6da962 72
Dance 0:de885a6da962 73 #endif