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/USBMSD/USBMSD.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 | |
Dance | 0:f1ecca559ec3 | 20 | #ifndef USBMSD_H |
Dance | 0:f1ecca559ec3 | 21 | #define USBMSD_H |
Dance | 0:f1ecca559ec3 | 22 | |
Dance | 0:f1ecca559ec3 | 23 | /* These headers are included for child class. */ |
Dance | 0:f1ecca559ec3 | 24 | #include "USBEndpoints.h" |
Dance | 0:f1ecca559ec3 | 25 | #include "USBDescriptor.h" |
Dance | 0:f1ecca559ec3 | 26 | #include "USBDevice_Types.h" |
Dance | 0:f1ecca559ec3 | 27 | |
Dance | 0:f1ecca559ec3 | 28 | #include "USBDevice.h" |
Dance | 0:f1ecca559ec3 | 29 | |
Dance | 0:f1ecca559ec3 | 30 | /** |
Dance | 0:f1ecca559ec3 | 31 | * USBMSD class: generic class in order to use all kinds of blocks storage chip |
Dance | 0:f1ecca559ec3 | 32 | * |
Dance | 0:f1ecca559ec3 | 33 | * Introduction |
Dance | 0:f1ecca559ec3 | 34 | * |
Dance | 0:f1ecca559ec3 | 35 | * The USBMSD implements the MSD protocol. It permits to access a memory chip (flash, sdcard,...) |
Dance | 0:f1ecca559ec3 | 36 | * from a computer over USB. But this class doesn't work standalone, you need to subclass this class |
Dance | 0:f1ecca559ec3 | 37 | * and define virtual functions which are called in USBMSD. |
Dance | 0:f1ecca559ec3 | 38 | * |
Dance | 0:f1ecca559ec3 | 39 | * How to use this class with your chip ? |
Dance | 0:f1ecca559ec3 | 40 | * |
Dance | 0:f1ecca559ec3 | 41 | * You have to inherit and define some pure virtual functions (mandatory step): |
Dance | 0:f1ecca559ec3 | 42 | * - virtual int disk_read(char * data, int block): function to read a block |
Dance | 0:f1ecca559ec3 | 43 | * - virtual int disk_write(const char * data, int block): function to write a block |
Dance | 0:f1ecca559ec3 | 44 | * - virtual int disk_initialize(): function to initialize the memory |
Dance | 0:f1ecca559ec3 | 45 | * - virtual int disk_sectors(): return the number of blocks |
Dance | 0:f1ecca559ec3 | 46 | * - virtual int disk_size(): return the memory size |
Dance | 0:f1ecca559ec3 | 47 | * - virtual int disk_status(): return the status of the storage chip (0: OK, 1: not initialized, 2: no medium in the drive, 4: write protection) |
Dance | 0:f1ecca559ec3 | 48 | * |
Dance | 0:f1ecca559ec3 | 49 | * All functions names are compatible with the fat filesystem library. So you can imagine using your own class with |
Dance | 0:f1ecca559ec3 | 50 | * USBMSD and the fat filesystem library in the same program. Just be careful because there are two different parts which |
Dance | 0:f1ecca559ec3 | 51 | * will access the sd card. You can do a master/slave system using the disk_status method. |
Dance | 0:f1ecca559ec3 | 52 | * |
Dance | 0:f1ecca559ec3 | 53 | * Once these functions defined, you can call connect() (at the end of the constructor of your class for instance) |
Dance | 0:f1ecca559ec3 | 54 | * of USBMSD to connect your mass storage device. connect() will first call disk_status() to test the status of the disk. |
Dance | 0:f1ecca559ec3 | 55 | * If disk_status() returns 1 (disk not initialized), then disk_initialize() is called. After this step, connect() will collect information |
Dance | 0:f1ecca559ec3 | 56 | * such as the number of blocks and the memory size. |
Dance | 0:f1ecca559ec3 | 57 | */ |
Dance | 0:f1ecca559ec3 | 58 | class USBMSD: public USBDevice { |
Dance | 0:f1ecca559ec3 | 59 | public: |
Dance | 0:f1ecca559ec3 | 60 | |
Dance | 0:f1ecca559ec3 | 61 | /** |
Dance | 0:f1ecca559ec3 | 62 | * Constructor |
Dance | 0:f1ecca559ec3 | 63 | * |
Dance | 0:f1ecca559ec3 | 64 | * @param vendor_id Your vendor_id |
Dance | 0:f1ecca559ec3 | 65 | * @param product_id Your product_id |
Dance | 0:f1ecca559ec3 | 66 | * @param product_release Your preoduct_release |
Dance | 0:f1ecca559ec3 | 67 | */ |
Dance | 0:f1ecca559ec3 | 68 | USBMSD(uint16_t vendor_id = 0x0703, uint16_t product_id = 0x0104, uint16_t product_release = 0x0001); |
Dance | 0:f1ecca559ec3 | 69 | |
Dance | 0:f1ecca559ec3 | 70 | /** |
Dance | 0:f1ecca559ec3 | 71 | * Connect the USB MSD device. Establish disk initialization before really connect the device. |
Dance | 0:f1ecca559ec3 | 72 | * |
Dance | 0:f1ecca559ec3 | 73 | * @param blocking if not configured |
Dance | 0:f1ecca559ec3 | 74 | * @returns true if successful |
Dance | 0:f1ecca559ec3 | 75 | */ |
Dance | 0:f1ecca559ec3 | 76 | bool connect(bool blocking = true); |
Dance | 0:f1ecca559ec3 | 77 | |
Dance | 0:f1ecca559ec3 | 78 | /** |
Dance | 0:f1ecca559ec3 | 79 | * Disconnect the USB MSD device. |
Dance | 0:f1ecca559ec3 | 80 | */ |
Dance | 0:f1ecca559ec3 | 81 | void disconnect(); |
Dance | 0:f1ecca559ec3 | 82 | |
Dance | 0:f1ecca559ec3 | 83 | /** |
Dance | 0:f1ecca559ec3 | 84 | * Destructor |
Dance | 0:f1ecca559ec3 | 85 | */ |
Dance | 0:f1ecca559ec3 | 86 | ~USBMSD(); |
Dance | 0:f1ecca559ec3 | 87 | |
Dance | 0:f1ecca559ec3 | 88 | protected: |
Dance | 0:f1ecca559ec3 | 89 | |
Dance | 0:f1ecca559ec3 | 90 | /* |
Dance | 0:f1ecca559ec3 | 91 | * read a block on a storage chip |
Dance | 0:f1ecca559ec3 | 92 | * |
Dance | 0:f1ecca559ec3 | 93 | * @param data pointer where will be stored read data |
Dance | 0:f1ecca559ec3 | 94 | * @param block block number |
Dance | 0:f1ecca559ec3 | 95 | * @returns 0 if successful |
Dance | 0:f1ecca559ec3 | 96 | */ |
Dance | 0:f1ecca559ec3 | 97 | virtual int disk_read(uint8_t * data, uint64_t block) = 0; |
Dance | 0:f1ecca559ec3 | 98 | |
Dance | 0:f1ecca559ec3 | 99 | /* |
Dance | 0:f1ecca559ec3 | 100 | * write a block on a storage chip |
Dance | 0:f1ecca559ec3 | 101 | * |
Dance | 0:f1ecca559ec3 | 102 | * @param data data to write |
Dance | 0:f1ecca559ec3 | 103 | * @param block block number |
Dance | 0:f1ecca559ec3 | 104 | * @returns 0 if successful |
Dance | 0:f1ecca559ec3 | 105 | */ |
Dance | 0:f1ecca559ec3 | 106 | virtual int disk_write(const uint8_t * data, uint64_t block) = 0; |
Dance | 0:f1ecca559ec3 | 107 | |
Dance | 0:f1ecca559ec3 | 108 | /* |
Dance | 0:f1ecca559ec3 | 109 | * Disk initilization |
Dance | 0:f1ecca559ec3 | 110 | */ |
Dance | 0:f1ecca559ec3 | 111 | virtual int disk_initialize() = 0; |
Dance | 0:f1ecca559ec3 | 112 | |
Dance | 0:f1ecca559ec3 | 113 | /* |
Dance | 0:f1ecca559ec3 | 114 | * Return the number of blocks |
Dance | 0:f1ecca559ec3 | 115 | * |
Dance | 0:f1ecca559ec3 | 116 | * @returns number of blocks |
Dance | 0:f1ecca559ec3 | 117 | */ |
Dance | 0:f1ecca559ec3 | 118 | virtual uint64_t disk_sectors() = 0; |
Dance | 0:f1ecca559ec3 | 119 | |
Dance | 0:f1ecca559ec3 | 120 | /* |
Dance | 0:f1ecca559ec3 | 121 | * Return memory size |
Dance | 0:f1ecca559ec3 | 122 | * |
Dance | 0:f1ecca559ec3 | 123 | * @returns memory size |
Dance | 0:f1ecca559ec3 | 124 | */ |
Dance | 0:f1ecca559ec3 | 125 | virtual uint64_t disk_size() = 0; |
Dance | 0:f1ecca559ec3 | 126 | |
Dance | 0:f1ecca559ec3 | 127 | |
Dance | 0:f1ecca559ec3 | 128 | /* |
Dance | 0:f1ecca559ec3 | 129 | * To check the status of the storage chip |
Dance | 0:f1ecca559ec3 | 130 | * |
Dance | 0:f1ecca559ec3 | 131 | * @returns status: 0: OK, 1: disk not initialized, 2: no medium in the drive, 4: write protected |
Dance | 0:f1ecca559ec3 | 132 | */ |
Dance | 0:f1ecca559ec3 | 133 | virtual int disk_status() = 0; |
Dance | 0:f1ecca559ec3 | 134 | |
Dance | 0:f1ecca559ec3 | 135 | /* |
Dance | 0:f1ecca559ec3 | 136 | * Get string product descriptor |
Dance | 0:f1ecca559ec3 | 137 | * |
Dance | 0:f1ecca559ec3 | 138 | * @returns pointer to the string product descriptor |
Dance | 0:f1ecca559ec3 | 139 | */ |
Dance | 0:f1ecca559ec3 | 140 | virtual uint8_t * stringIproductDesc(); |
Dance | 0:f1ecca559ec3 | 141 | |
Dance | 0:f1ecca559ec3 | 142 | /* |
Dance | 0:f1ecca559ec3 | 143 | * Get string interface descriptor |
Dance | 0:f1ecca559ec3 | 144 | * |
Dance | 0:f1ecca559ec3 | 145 | * @returns pointer to the string interface descriptor |
Dance | 0:f1ecca559ec3 | 146 | */ |
Dance | 0:f1ecca559ec3 | 147 | virtual uint8_t * stringIinterfaceDesc(); |
Dance | 0:f1ecca559ec3 | 148 | |
Dance | 0:f1ecca559ec3 | 149 | /* |
Dance | 0:f1ecca559ec3 | 150 | * Get configuration descriptor |
Dance | 0:f1ecca559ec3 | 151 | * |
Dance | 0:f1ecca559ec3 | 152 | * @returns pointer to the configuration descriptor |
Dance | 0:f1ecca559ec3 | 153 | */ |
Dance | 0:f1ecca559ec3 | 154 | virtual uint8_t * configurationDesc(); |
Dance | 0:f1ecca559ec3 | 155 | |
Dance | 0:f1ecca559ec3 | 156 | /* |
Dance | 0:f1ecca559ec3 | 157 | * Callback called when a packet is received |
Dance | 0:f1ecca559ec3 | 158 | */ |
Dance | 0:f1ecca559ec3 | 159 | virtual bool EP2_OUT_callback(); |
Dance | 0:f1ecca559ec3 | 160 | |
Dance | 0:f1ecca559ec3 | 161 | /* |
Dance | 0:f1ecca559ec3 | 162 | * Callback called when a packet has been sent |
Dance | 0:f1ecca559ec3 | 163 | */ |
Dance | 0:f1ecca559ec3 | 164 | virtual bool EP2_IN_callback(); |
Dance | 0:f1ecca559ec3 | 165 | |
Dance | 0:f1ecca559ec3 | 166 | /* |
Dance | 0:f1ecca559ec3 | 167 | * Set configuration of device. Add endpoints |
Dance | 0:f1ecca559ec3 | 168 | */ |
Dance | 0:f1ecca559ec3 | 169 | virtual bool USBCallback_setConfiguration(uint8_t configuration); |
Dance | 0:f1ecca559ec3 | 170 | |
Dance | 0:f1ecca559ec3 | 171 | /* |
Dance | 0:f1ecca559ec3 | 172 | * Callback called to process class specific requests |
Dance | 0:f1ecca559ec3 | 173 | */ |
Dance | 0:f1ecca559ec3 | 174 | virtual bool USBCallback_request(); |
Dance | 0:f1ecca559ec3 | 175 | |
Dance | 0:f1ecca559ec3 | 176 | |
Dance | 0:f1ecca559ec3 | 177 | private: |
Dance | 0:f1ecca559ec3 | 178 | |
Dance | 0:f1ecca559ec3 | 179 | // MSC Bulk-only Stage |
Dance | 0:f1ecca559ec3 | 180 | enum Stage { |
Dance | 0:f1ecca559ec3 | 181 | READ_CBW, // wait a CBW |
Dance | 0:f1ecca559ec3 | 182 | ERROR, // error |
Dance | 0:f1ecca559ec3 | 183 | PROCESS_CBW, // process a CBW request |
Dance | 0:f1ecca559ec3 | 184 | SEND_CSW, // send a CSW |
Dance | 0:f1ecca559ec3 | 185 | WAIT_CSW, // wait that a CSW has been effectively sent |
Dance | 0:f1ecca559ec3 | 186 | }; |
Dance | 0:f1ecca559ec3 | 187 | |
Dance | 0:f1ecca559ec3 | 188 | // Bulk-only CBW |
Dance | 0:f1ecca559ec3 | 189 | typedef struct { |
Dance | 0:f1ecca559ec3 | 190 | uint32_t Signature; |
Dance | 0:f1ecca559ec3 | 191 | uint32_t Tag; |
Dance | 0:f1ecca559ec3 | 192 | uint32_t DataLength; |
Dance | 0:f1ecca559ec3 | 193 | uint8_t Flags; |
Dance | 0:f1ecca559ec3 | 194 | uint8_t LUN; |
Dance | 0:f1ecca559ec3 | 195 | uint8_t CBLength; |
Dance | 0:f1ecca559ec3 | 196 | uint8_t CB[16]; |
Dance | 0:f1ecca559ec3 | 197 | } PACKED CBW; |
Dance | 0:f1ecca559ec3 | 198 | |
Dance | 0:f1ecca559ec3 | 199 | // Bulk-only CSW |
Dance | 0:f1ecca559ec3 | 200 | typedef struct { |
Dance | 0:f1ecca559ec3 | 201 | uint32_t Signature; |
Dance | 0:f1ecca559ec3 | 202 | uint32_t Tag; |
Dance | 0:f1ecca559ec3 | 203 | uint32_t DataResidue; |
Dance | 0:f1ecca559ec3 | 204 | uint8_t Status; |
Dance | 0:f1ecca559ec3 | 205 | } PACKED CSW; |
Dance | 0:f1ecca559ec3 | 206 | |
Dance | 0:f1ecca559ec3 | 207 | //state of the bulk-only state machine |
Dance | 0:f1ecca559ec3 | 208 | Stage stage; |
Dance | 0:f1ecca559ec3 | 209 | |
Dance | 0:f1ecca559ec3 | 210 | // current CBW |
Dance | 0:f1ecca559ec3 | 211 | CBW cbw; |
Dance | 0:f1ecca559ec3 | 212 | |
Dance | 0:f1ecca559ec3 | 213 | // CSW which will be sent |
Dance | 0:f1ecca559ec3 | 214 | CSW csw; |
Dance | 0:f1ecca559ec3 | 215 | |
Dance | 0:f1ecca559ec3 | 216 | // addr where will be read or written data |
Dance | 0:f1ecca559ec3 | 217 | uint32_t addr; |
Dance | 0:f1ecca559ec3 | 218 | |
Dance | 0:f1ecca559ec3 | 219 | // length of a reading or writing |
Dance | 0:f1ecca559ec3 | 220 | uint32_t length; |
Dance | 0:f1ecca559ec3 | 221 | |
Dance | 0:f1ecca559ec3 | 222 | // memory OK (after a memoryVerify) |
Dance | 0:f1ecca559ec3 | 223 | bool memOK; |
Dance | 0:f1ecca559ec3 | 224 | |
Dance | 0:f1ecca559ec3 | 225 | // cache in RAM before writing in memory. Useful also to read a block. |
Dance | 0:f1ecca559ec3 | 226 | uint8_t * page; |
Dance | 0:f1ecca559ec3 | 227 | |
Dance | 0:f1ecca559ec3 | 228 | int BlockSize; |
Dance | 0:f1ecca559ec3 | 229 | uint64_t MemorySize; |
Dance | 0:f1ecca559ec3 | 230 | uint64_t BlockCount; |
Dance | 0:f1ecca559ec3 | 231 | |
Dance | 0:f1ecca559ec3 | 232 | void CBWDecode(uint8_t * buf, uint16_t size); |
Dance | 0:f1ecca559ec3 | 233 | void sendCSW (void); |
Dance | 0:f1ecca559ec3 | 234 | bool inquiryRequest (void); |
Dance | 0:f1ecca559ec3 | 235 | bool write (uint8_t * buf, uint16_t size); |
Dance | 0:f1ecca559ec3 | 236 | bool readFormatCapacity(); |
Dance | 0:f1ecca559ec3 | 237 | bool readCapacity (void); |
Dance | 0:f1ecca559ec3 | 238 | bool infoTransfer (void); |
Dance | 0:f1ecca559ec3 | 239 | void memoryRead (void); |
Dance | 0:f1ecca559ec3 | 240 | bool modeSense6 (void); |
Dance | 0:f1ecca559ec3 | 241 | void testUnitReady (void); |
Dance | 0:f1ecca559ec3 | 242 | bool requestSense (void); |
Dance | 0:f1ecca559ec3 | 243 | void memoryVerify (uint8_t * buf, uint16_t size); |
Dance | 0:f1ecca559ec3 | 244 | void memoryWrite (uint8_t * buf, uint16_t size); |
Dance | 0:f1ecca559ec3 | 245 | void reset(); |
Dance | 0:f1ecca559ec3 | 246 | void fail(); |
Dance | 0:f1ecca559ec3 | 247 | }; |
Dance | 0:f1ecca559ec3 | 248 | |
Dance | 0:f1ecca559ec3 | 249 | #endif |