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

Dependencies:   USBDevice mbed

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。

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?

UserRevisionLine numberNew 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 USB_HID_H
Dance 0:f1ecca559ec3 20 #define USB_HID_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 "USBHID_Types.h"
Dance 0:f1ecca559ec3 28 #include "USBDevice.h"
Dance 0:f1ecca559ec3 29
Dance 0:f1ecca559ec3 30
Dance 0:f1ecca559ec3 31 /**
Dance 0:f1ecca559ec3 32 * USBHID example
Dance 0:f1ecca559ec3 33 * @code
Dance 0:f1ecca559ec3 34 * #include "mbed.h"
Dance 0:f1ecca559ec3 35 * #include "USBHID.h"
Dance 0:f1ecca559ec3 36 *
Dance 0:f1ecca559ec3 37 * USBHID hid;
Dance 0:f1ecca559ec3 38 * HID_REPORT recv;
Dance 0:f1ecca559ec3 39 * BusOut leds(LED1,LED2,LED3,LED4);
Dance 0:f1ecca559ec3 40 *
Dance 0:f1ecca559ec3 41 * int main(void) {
Dance 0:f1ecca559ec3 42 * while (1) {
Dance 0:f1ecca559ec3 43 * hid.read(&recv);
Dance 0:f1ecca559ec3 44 * leds = recv.data[0];
Dance 0:f1ecca559ec3 45 * }
Dance 0:f1ecca559ec3 46 * }
Dance 0:f1ecca559ec3 47 * @endcode
Dance 0:f1ecca559ec3 48 */
Dance 0:f1ecca559ec3 49
Dance 0:f1ecca559ec3 50 class USBHID: public USBDevice {
Dance 0:f1ecca559ec3 51 public:
Dance 0:f1ecca559ec3 52
Dance 0:f1ecca559ec3 53 /**
Dance 0:f1ecca559ec3 54 * Constructor
Dance 0:f1ecca559ec3 55 *
Dance 0:f1ecca559ec3 56 * @param output_report_length Maximum length of a sent report (up to 64 bytes) (default: 64 bytes)
Dance 0:f1ecca559ec3 57 * @param input_report_length Maximum length of a received report (up to 64 bytes) (default: 64 bytes)
Dance 0:f1ecca559ec3 58 * @param vendor_id Your vendor_id
Dance 0:f1ecca559ec3 59 * @param product_id Your product_id
Dance 0:f1ecca559ec3 60 * @param product_release Your preoduct_release
Dance 0:f1ecca559ec3 61 * @param connect Connect the device
Dance 0:f1ecca559ec3 62 */
Dance 0:f1ecca559ec3 63 USBHID(uint8_t output_report_length = 64, uint8_t input_report_length = 64, uint16_t vendor_id = 0x1234, uint16_t product_id = 0x0006, uint16_t product_release = 0x0001, bool connect = true);
Dance 0:f1ecca559ec3 64
Dance 0:f1ecca559ec3 65
Dance 0:f1ecca559ec3 66 /**
Dance 0:f1ecca559ec3 67 * Send a Report. warning: blocking
Dance 0:f1ecca559ec3 68 *
Dance 0:f1ecca559ec3 69 * @param report Report which will be sent (a report is defined by all data and the length)
Dance 0:f1ecca559ec3 70 * @returns true if successful
Dance 0:f1ecca559ec3 71 */
Dance 0:f1ecca559ec3 72 bool send(HID_REPORT *report);
Dance 0:f1ecca559ec3 73
Dance 0:f1ecca559ec3 74
Dance 0:f1ecca559ec3 75 /**
Dance 0:f1ecca559ec3 76 * Send a Report. warning: non blocking
Dance 0:f1ecca559ec3 77 *
Dance 0:f1ecca559ec3 78 * @param report Report which will be sent (a report is defined by all data and the length)
Dance 0:f1ecca559ec3 79 * @returns true if successful
Dance 0:f1ecca559ec3 80 */
Dance 0:f1ecca559ec3 81 bool sendNB(HID_REPORT *report);
Dance 0:f1ecca559ec3 82
Dance 0:f1ecca559ec3 83 /**
Dance 0:f1ecca559ec3 84 * Read a report: blocking
Dance 0:f1ecca559ec3 85 *
Dance 0:f1ecca559ec3 86 * @param report pointer to the report to fill
Dance 0:f1ecca559ec3 87 * @returns true if successful
Dance 0:f1ecca559ec3 88 */
Dance 0:f1ecca559ec3 89 bool read(HID_REPORT * report);
Dance 0:f1ecca559ec3 90
Dance 0:f1ecca559ec3 91 /**
Dance 0:f1ecca559ec3 92 * Read a report: non blocking
Dance 0:f1ecca559ec3 93 *
Dance 0:f1ecca559ec3 94 * @param report pointer to the report to fill
Dance 0:f1ecca559ec3 95 * @returns true if successful
Dance 0:f1ecca559ec3 96 */
Dance 0:f1ecca559ec3 97 bool readNB(HID_REPORT * report);
Dance 0:f1ecca559ec3 98
Dance 0:f1ecca559ec3 99 protected:
Dance 0:f1ecca559ec3 100 uint16_t reportLength;
Dance 0:f1ecca559ec3 101
Dance 0:f1ecca559ec3 102 /*
Dance 0:f1ecca559ec3 103 * Get the Report descriptor
Dance 0:f1ecca559ec3 104 *
Dance 0:f1ecca559ec3 105 * @returns pointer to the report descriptor
Dance 0:f1ecca559ec3 106 */
Dance 0:f1ecca559ec3 107 virtual uint8_t * reportDesc();
Dance 0:f1ecca559ec3 108
Dance 0:f1ecca559ec3 109 /*
Dance 0:f1ecca559ec3 110 * Get the length of the report descriptor
Dance 0:f1ecca559ec3 111 *
Dance 0:f1ecca559ec3 112 * @returns the length of the report descriptor
Dance 0:f1ecca559ec3 113 */
Dance 0:f1ecca559ec3 114 virtual uint16_t reportDescLength();
Dance 0:f1ecca559ec3 115
Dance 0:f1ecca559ec3 116 /*
Dance 0:f1ecca559ec3 117 * Get string product descriptor
Dance 0:f1ecca559ec3 118 *
Dance 0:f1ecca559ec3 119 * @returns pointer to the string product descriptor
Dance 0:f1ecca559ec3 120 */
Dance 0:f1ecca559ec3 121 virtual uint8_t * stringIproductDesc();
Dance 0:f1ecca559ec3 122
Dance 0:f1ecca559ec3 123 /*
Dance 0:f1ecca559ec3 124 * Get string interface descriptor
Dance 0:f1ecca559ec3 125 *
Dance 0:f1ecca559ec3 126 * @returns pointer to the string interface descriptor
Dance 0:f1ecca559ec3 127 */
Dance 0:f1ecca559ec3 128 virtual uint8_t * stringIinterfaceDesc();
Dance 0:f1ecca559ec3 129
Dance 0:f1ecca559ec3 130 /*
Dance 0:f1ecca559ec3 131 * Get configuration descriptor
Dance 0:f1ecca559ec3 132 *
Dance 0:f1ecca559ec3 133 * @returns pointer to the configuration descriptor
Dance 0:f1ecca559ec3 134 */
Dance 0:f1ecca559ec3 135 virtual uint8_t * configurationDesc();
Dance 0:f1ecca559ec3 136
Dance 0:f1ecca559ec3 137
Dance 0:f1ecca559ec3 138 /*
Dance 0:f1ecca559ec3 139 * HID Report received by SET_REPORT request. Warning: Called in ISR context
Dance 0:f1ecca559ec3 140 * First byte of data will be the report ID
Dance 0:f1ecca559ec3 141 *
Dance 0:f1ecca559ec3 142 * @param report Data and length received
Dance 0:f1ecca559ec3 143 */
Dance 0:f1ecca559ec3 144 virtual void HID_callbackSetReport(HID_REPORT *report){};
Dance 0:f1ecca559ec3 145
Dance 0:f1ecca559ec3 146
Dance 0:f1ecca559ec3 147 /*
Dance 0:f1ecca559ec3 148 * Called by USBDevice on Endpoint0 request. Warning: Called in ISR context
Dance 0:f1ecca559ec3 149 * This is used to handle extensions to standard requests
Dance 0:f1ecca559ec3 150 * and class specific requests
Dance 0:f1ecca559ec3 151 *
Dance 0:f1ecca559ec3 152 * @returns true if class handles this request
Dance 0:f1ecca559ec3 153 */
Dance 0:f1ecca559ec3 154 virtual bool USBCallback_request();
Dance 0:f1ecca559ec3 155
Dance 0:f1ecca559ec3 156
Dance 0:f1ecca559ec3 157 /*
Dance 0:f1ecca559ec3 158 * Called by USBDevice layer. Set configuration of the device.
Dance 0:f1ecca559ec3 159 * For instance, you can add all endpoints that you need on this function.
Dance 0:f1ecca559ec3 160 *
Dance 0:f1ecca559ec3 161 * @param configuration Number of the configuration
Dance 0:f1ecca559ec3 162 * @returns true if class handles this request
Dance 0:f1ecca559ec3 163 */
Dance 0:f1ecca559ec3 164 virtual bool USBCallback_setConfiguration(uint8_t configuration);
Dance 0:f1ecca559ec3 165
Dance 0:f1ecca559ec3 166 private:
Dance 0:f1ecca559ec3 167 HID_REPORT outputReport;
Dance 0:f1ecca559ec3 168 uint8_t output_length;
Dance 0:f1ecca559ec3 169 uint8_t input_length;
Dance 0:f1ecca559ec3 170 };
Dance 0:f1ecca559ec3 171
Dance 0:f1ecca559ec3 172 #endif