![](/media/cache/group/site_id.gif.50x50_q85.jpg)
Transistor Gijutsu, October 2014, Special Features Chapter 9, Software of the Function Generator トランジスタ技術2014年10月号 特集第9章のソフトウェア わがまま波形発生器のソフトウェア
Information
tg_201410s8_AD7714 トランジスタ技術 2014年 10月号 第9章のソフトウェア
Program for Section 9 in October. 2014 issue of the Transistor Gijutsu
(Japanese electronics magazine)
概要
このプログラムは、ソフトウエアDDSにより、任意の波形を出力(2ch)します。 特徴は次のとおりです。
- PWM出力をDAコンバータとして利用します。
- 周波数や波形、バースト条件などを個別に設定できる独立した出力を2チャネル持っています。
- 周波数分解能0.023mHz
- 周波数範囲0.023mHz~10kHz
- 各チャネルにそれぞれ、波形の先頭で出力されるトリガ出力があります。
- 出力波形を関数で定義できます。
- 休止波数、出力波数、を設定することでバースト波形が出力できます。
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。
- DDS.cpp - DDSによる波形発生
- 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/USBCDC.h@0:f1ecca559ec3, 2014-08-29 (annotated)
- Committer:
- Dance
- Date:
- Fri Aug 29 08:33:17 2014 +0000
- Revision:
- 0:f1ecca559ec3
Transistor Gijutsu, October 2014, Special Features Chapter 9; ????????2014?10??????9????????
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Dance | 0:f1ecca559ec3 | 1 | /* Copyright (c) 2010-2011 mbed.org, MIT License |
Dance | 0:f1ecca559ec3 | 2 | * |
Dance | 0:f1ecca559ec3 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
Dance | 0:f1ecca559ec3 | 4 | * and associated documentation files (the "Software"), to deal in the Software without |
Dance | 0:f1ecca559ec3 | 5 | * restriction, including without limitation the rights to use, copy, modify, merge, publish, |
Dance | 0:f1ecca559ec3 | 6 | * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the |
Dance | 0:f1ecca559ec3 | 7 | * Software is furnished to do so, subject to the following conditions: |
Dance | 0:f1ecca559ec3 | 8 | * |
Dance | 0:f1ecca559ec3 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
Dance | 0:f1ecca559ec3 | 10 | * substantial portions of the Software. |
Dance | 0:f1ecca559ec3 | 11 | * |
Dance | 0:f1ecca559ec3 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
Dance | 0:f1ecca559ec3 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
Dance | 0:f1ecca559ec3 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
Dance | 0:f1ecca559ec3 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
Dance | 0:f1ecca559ec3 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
Dance | 0:f1ecca559ec3 | 17 | */ |
Dance | 0:f1ecca559ec3 | 18 | |
Dance | 0:f1ecca559ec3 | 19 | #ifndef USBCDC_H |
Dance | 0:f1ecca559ec3 | 20 | #define USBCDC_H |
Dance | 0:f1ecca559ec3 | 21 | |
Dance | 0:f1ecca559ec3 | 22 | /* These headers are included for child class. */ |
Dance | 0:f1ecca559ec3 | 23 | #include "USBEndpoints.h" |
Dance | 0:f1ecca559ec3 | 24 | #include "USBDescriptor.h" |
Dance | 0:f1ecca559ec3 | 25 | #include "USBDevice_Types.h" |
Dance | 0:f1ecca559ec3 | 26 | |
Dance | 0:f1ecca559ec3 | 27 | #include "USBDevice.h" |
Dance | 0:f1ecca559ec3 | 28 | |
Dance | 0:f1ecca559ec3 | 29 | class USBCDC: public USBDevice { |
Dance | 0:f1ecca559ec3 | 30 | public: |
Dance | 0:f1ecca559ec3 | 31 | |
Dance | 0:f1ecca559ec3 | 32 | /* |
Dance | 0:f1ecca559ec3 | 33 | * Constructor |
Dance | 0:f1ecca559ec3 | 34 | * |
Dance | 0:f1ecca559ec3 | 35 | * @param vendor_id Your vendor_id |
Dance | 0:f1ecca559ec3 | 36 | * @param product_id Your product_id |
Dance | 0:f1ecca559ec3 | 37 | * @param product_release Your preoduct_release |
Dance | 0:f1ecca559ec3 | 38 | * @param connect_blocking define if the connection must be blocked if USB not plugged in |
Dance | 0:f1ecca559ec3 | 39 | */ |
Dance | 0:f1ecca559ec3 | 40 | USBCDC(uint16_t vendor_id, uint16_t product_id, uint16_t product_release, bool connect_blocking); |
Dance | 0:f1ecca559ec3 | 41 | |
Dance | 0:f1ecca559ec3 | 42 | protected: |
Dance | 0:f1ecca559ec3 | 43 | |
Dance | 0:f1ecca559ec3 | 44 | /* |
Dance | 0:f1ecca559ec3 | 45 | * Get device descriptor. Warning: this method has to store the length of the report descriptor in reportLength. |
Dance | 0:f1ecca559ec3 | 46 | * |
Dance | 0:f1ecca559ec3 | 47 | * @returns pointer to the device descriptor |
Dance | 0:f1ecca559ec3 | 48 | */ |
Dance | 0:f1ecca559ec3 | 49 | virtual uint8_t * deviceDesc(); |
Dance | 0:f1ecca559ec3 | 50 | |
Dance | 0:f1ecca559ec3 | 51 | /* |
Dance | 0:f1ecca559ec3 | 52 | * Get string product descriptor |
Dance | 0:f1ecca559ec3 | 53 | * |
Dance | 0:f1ecca559ec3 | 54 | * @returns pointer to the string product descriptor |
Dance | 0:f1ecca559ec3 | 55 | */ |
Dance | 0:f1ecca559ec3 | 56 | virtual uint8_t * stringIproductDesc(); |
Dance | 0:f1ecca559ec3 | 57 | |
Dance | 0:f1ecca559ec3 | 58 | /* |
Dance | 0:f1ecca559ec3 | 59 | * Get string interface descriptor |
Dance | 0:f1ecca559ec3 | 60 | * |
Dance | 0:f1ecca559ec3 | 61 | * @returns pointer to the string interface descriptor |
Dance | 0:f1ecca559ec3 | 62 | */ |
Dance | 0:f1ecca559ec3 | 63 | virtual uint8_t * stringIinterfaceDesc(); |
Dance | 0:f1ecca559ec3 | 64 | |
Dance | 0:f1ecca559ec3 | 65 | /* |
Dance | 0:f1ecca559ec3 | 66 | * Get configuration descriptor |
Dance | 0:f1ecca559ec3 | 67 | * |
Dance | 0:f1ecca559ec3 | 68 | * @returns pointer to the configuration descriptor |
Dance | 0:f1ecca559ec3 | 69 | */ |
Dance | 0:f1ecca559ec3 | 70 | virtual uint8_t * configurationDesc(); |
Dance | 0:f1ecca559ec3 | 71 | |
Dance | 0:f1ecca559ec3 | 72 | /* |
Dance | 0:f1ecca559ec3 | 73 | * Send a buffer |
Dance | 0:f1ecca559ec3 | 74 | * |
Dance | 0:f1ecca559ec3 | 75 | * @param endpoint endpoint which will be sent the buffer |
Dance | 0:f1ecca559ec3 | 76 | * @param buffer buffer to be sent |
Dance | 0:f1ecca559ec3 | 77 | * @param size length of the buffer |
Dance | 0:f1ecca559ec3 | 78 | * @returns true if successful |
Dance | 0:f1ecca559ec3 | 79 | */ |
Dance | 0:f1ecca559ec3 | 80 | bool send(uint8_t * buffer, uint32_t size); |
Dance | 0:f1ecca559ec3 | 81 | |
Dance | 0:f1ecca559ec3 | 82 | /* |
Dance | 0:f1ecca559ec3 | 83 | * Read a buffer from a certain endpoint. Warning: blocking |
Dance | 0:f1ecca559ec3 | 84 | * |
Dance | 0:f1ecca559ec3 | 85 | * @param endpoint endpoint to read |
Dance | 0:f1ecca559ec3 | 86 | * @param buffer buffer where will be stored bytes |
Dance | 0:f1ecca559ec3 | 87 | * @param size the number of bytes read will be stored in *size |
Dance | 0:f1ecca559ec3 | 88 | * @param maxSize the maximum length that can be read |
Dance | 0:f1ecca559ec3 | 89 | * @returns true if successful |
Dance | 0:f1ecca559ec3 | 90 | */ |
Dance | 0:f1ecca559ec3 | 91 | bool readEP(uint8_t * buffer, uint32_t * size); |
Dance | 0:f1ecca559ec3 | 92 | |
Dance | 0:f1ecca559ec3 | 93 | /* |
Dance | 0:f1ecca559ec3 | 94 | * Read a buffer from a certain endpoint. Warning: non blocking |
Dance | 0:f1ecca559ec3 | 95 | * |
Dance | 0:f1ecca559ec3 | 96 | * @param endpoint endpoint to read |
Dance | 0:f1ecca559ec3 | 97 | * @param buffer buffer where will be stored bytes |
Dance | 0:f1ecca559ec3 | 98 | * @param size the number of bytes read will be stored in *size |
Dance | 0:f1ecca559ec3 | 99 | * @param maxSize the maximum length that can be read |
Dance | 0:f1ecca559ec3 | 100 | * @returns true if successful |
Dance | 0:f1ecca559ec3 | 101 | */ |
Dance | 0:f1ecca559ec3 | 102 | bool readEP_NB(uint8_t * buffer, uint32_t * size); |
Dance | 0:f1ecca559ec3 | 103 | |
Dance | 0:f1ecca559ec3 | 104 | /* |
Dance | 0:f1ecca559ec3 | 105 | * Called by USBCallback_requestCompleted when CDC line coding is changed |
Dance | 0:f1ecca559ec3 | 106 | * Warning: Called in ISR |
Dance | 0:f1ecca559ec3 | 107 | * |
Dance | 0:f1ecca559ec3 | 108 | * @param baud The baud rate |
Dance | 0:f1ecca559ec3 | 109 | * @param bits The number of bits in a word (5-8) |
Dance | 0:f1ecca559ec3 | 110 | * @param parity The parity |
Dance | 0:f1ecca559ec3 | 111 | * @param stop The number of stop bits (1 or 2) |
Dance | 0:f1ecca559ec3 | 112 | */ |
Dance | 0:f1ecca559ec3 | 113 | virtual void lineCodingChanged(int baud, int bits, int parity, int stop) {}; |
Dance | 0:f1ecca559ec3 | 114 | |
Dance | 0:f1ecca559ec3 | 115 | protected: |
Dance | 0:f1ecca559ec3 | 116 | virtual bool USBCallback_request(); |
Dance | 0:f1ecca559ec3 | 117 | virtual void USBCallback_requestCompleted(uint8_t *buf, uint32_t length); |
Dance | 0:f1ecca559ec3 | 118 | virtual bool USBCallback_setConfiguration(uint8_t configuration); |
Dance | 0:f1ecca559ec3 | 119 | volatile bool terminal_connected; |
Dance | 0:f1ecca559ec3 | 120 | |
Dance | 0:f1ecca559ec3 | 121 | }; |
Dance | 0:f1ecca559ec3 | 122 | |
Dance | 0:f1ecca559ec3 | 123 | #endif |