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/USBCDC.cpp@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 #include "stdint.h"
Dance 0:de885a6da962 20 #include "USBCDC.h"
Dance 0:de885a6da962 21
Dance 0:de885a6da962 22 static uint8_t cdc_line_coding[7]= {0x80, 0x25, 0x00, 0x00, 0x00, 0x00, 0x08};
Dance 0:de885a6da962 23
Dance 0:de885a6da962 24 #define DEFAULT_CONFIGURATION (1)
Dance 0:de885a6da962 25
Dance 0:de885a6da962 26 #define CDC_SET_LINE_CODING 0x20
Dance 0:de885a6da962 27 #define CDC_GET_LINE_CODING 0x21
Dance 0:de885a6da962 28 #define CDC_SET_CONTROL_LINE_STATE 0x22
Dance 0:de885a6da962 29
Dance 0:de885a6da962 30 #define MAX_CDC_REPORT_SIZE MAX_PACKET_SIZE_EPBULK
Dance 0:de885a6da962 31
Dance 0:de885a6da962 32 USBCDC::USBCDC(uint16_t vendor_id, uint16_t product_id, uint16_t product_release, bool connect_blocking): USBDevice(vendor_id, product_id, product_release) {
Dance 0:de885a6da962 33 terminal_connected = false;
Dance 0:de885a6da962 34 USBDevice::connect(connect_blocking);
Dance 0:de885a6da962 35 }
Dance 0:de885a6da962 36
Dance 0:de885a6da962 37 bool USBCDC::USBCallback_request(void) {
Dance 0:de885a6da962 38 /* Called in ISR context */
Dance 0:de885a6da962 39
Dance 0:de885a6da962 40 bool success = false;
Dance 0:de885a6da962 41 CONTROL_TRANSFER * transfer = getTransferPtr();
Dance 0:de885a6da962 42
Dance 0:de885a6da962 43 /* Process class-specific requests */
Dance 0:de885a6da962 44
Dance 0:de885a6da962 45 if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
Dance 0:de885a6da962 46 switch (transfer->setup.bRequest) {
Dance 0:de885a6da962 47 case CDC_GET_LINE_CODING:
Dance 0:de885a6da962 48 transfer->remaining = 7;
Dance 0:de885a6da962 49 transfer->ptr = cdc_line_coding;
Dance 0:de885a6da962 50 transfer->direction = DEVICE_TO_HOST;
Dance 0:de885a6da962 51 success = true;
Dance 0:de885a6da962 52 break;
Dance 0:de885a6da962 53 case CDC_SET_LINE_CODING:
Dance 0:de885a6da962 54 transfer->remaining = 7;
Dance 0:de885a6da962 55 transfer->notify = true;
Dance 0:de885a6da962 56 success = true;
Dance 0:de885a6da962 57 terminal_connected = true;
Dance 0:de885a6da962 58 break;
Dance 0:de885a6da962 59 case CDC_SET_CONTROL_LINE_STATE:
Dance 0:de885a6da962 60 terminal_connected = false;
Dance 0:de885a6da962 61 success = true;
Dance 0:de885a6da962 62 break;
Dance 0:de885a6da962 63 default:
Dance 0:de885a6da962 64 break;
Dance 0:de885a6da962 65 }
Dance 0:de885a6da962 66 }
Dance 0:de885a6da962 67
Dance 0:de885a6da962 68 return success;
Dance 0:de885a6da962 69 }
Dance 0:de885a6da962 70
Dance 0:de885a6da962 71 void USBCDC::USBCallback_requestCompleted(uint8_t *buf, uint32_t length) {
Dance 0:de885a6da962 72 // Request of setting line coding has 7 bytes
Dance 0:de885a6da962 73 if (length != 7) {
Dance 0:de885a6da962 74 return;
Dance 0:de885a6da962 75 }
Dance 0:de885a6da962 76
Dance 0:de885a6da962 77 CONTROL_TRANSFER * transfer = getTransferPtr();
Dance 0:de885a6da962 78
Dance 0:de885a6da962 79 /* Process class-specific requests */
Dance 0:de885a6da962 80 if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
Dance 0:de885a6da962 81 if (transfer->setup.bRequest == CDC_SET_LINE_CODING) {
Dance 0:de885a6da962 82 if (memcmp(cdc_line_coding, buf, 7)) {
Dance 0:de885a6da962 83 memcpy(cdc_line_coding, buf, 7);
Dance 0:de885a6da962 84
Dance 0:de885a6da962 85 int baud = buf[0] + (buf[1] << 8)
Dance 0:de885a6da962 86 + (buf[2] << 16) + (buf[3] << 24);
Dance 0:de885a6da962 87 int stop = buf[4];
Dance 0:de885a6da962 88 int bits = buf[6];
Dance 0:de885a6da962 89 int parity = buf[5];
Dance 0:de885a6da962 90
Dance 0:de885a6da962 91 lineCodingChanged(baud, bits, parity, stop);
Dance 0:de885a6da962 92 }
Dance 0:de885a6da962 93 }
Dance 0:de885a6da962 94 }
Dance 0:de885a6da962 95 }
Dance 0:de885a6da962 96
Dance 0:de885a6da962 97 // Called in ISR context
Dance 0:de885a6da962 98 // Set configuration. Return false if the
Dance 0:de885a6da962 99 // configuration is not supported.
Dance 0:de885a6da962 100 bool USBCDC::USBCallback_setConfiguration(uint8_t configuration) {
Dance 0:de885a6da962 101 if (configuration != DEFAULT_CONFIGURATION) {
Dance 0:de885a6da962 102 return false;
Dance 0:de885a6da962 103 }
Dance 0:de885a6da962 104
Dance 0:de885a6da962 105 // Configure endpoints > 0
Dance 0:de885a6da962 106 addEndpoint(EPINT_IN, MAX_PACKET_SIZE_EPINT);
Dance 0:de885a6da962 107 addEndpoint(EPBULK_IN, MAX_PACKET_SIZE_EPBULK);
Dance 0:de885a6da962 108 addEndpoint(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
Dance 0:de885a6da962 109
Dance 0:de885a6da962 110 // We activate the endpoint to be able to recceive data
Dance 0:de885a6da962 111 readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
Dance 0:de885a6da962 112 return true;
Dance 0:de885a6da962 113 }
Dance 0:de885a6da962 114
Dance 0:de885a6da962 115 bool USBCDC::send(uint8_t * buffer, uint32_t size) {
Dance 0:de885a6da962 116 return USBDevice::write(EPBULK_IN, buffer, size, MAX_CDC_REPORT_SIZE);
Dance 0:de885a6da962 117 }
Dance 0:de885a6da962 118
Dance 0:de885a6da962 119 bool USBCDC::readEP(uint8_t * buffer, uint32_t * size) {
Dance 0:de885a6da962 120 if (!USBDevice::readEP(EPBULK_OUT, buffer, size, MAX_CDC_REPORT_SIZE))
Dance 0:de885a6da962 121 return false;
Dance 0:de885a6da962 122 if (!readStart(EPBULK_OUT, MAX_CDC_REPORT_SIZE))
Dance 0:de885a6da962 123 return false;
Dance 0:de885a6da962 124 return true;
Dance 0:de885a6da962 125 }
Dance 0:de885a6da962 126
Dance 0:de885a6da962 127 bool USBCDC::readEP_NB(uint8_t * buffer, uint32_t * size) {
Dance 0:de885a6da962 128 if (!USBDevice::readEP_NB(EPBULK_OUT, buffer, size, MAX_CDC_REPORT_SIZE))
Dance 0:de885a6da962 129 return false;
Dance 0:de885a6da962 130 if (!readStart(EPBULK_OUT, MAX_CDC_REPORT_SIZE))
Dance 0:de885a6da962 131 return false;
Dance 0:de885a6da962 132 return true;
Dance 0:de885a6da962 133 }
Dance 0:de885a6da962 134
Dance 0:de885a6da962 135
Dance 0:de885a6da962 136 uint8_t * USBCDC::deviceDesc() {
Dance 0:de885a6da962 137 static uint8_t deviceDescriptor[] = {
Dance 0:de885a6da962 138 18, // bLength
Dance 0:de885a6da962 139 1, // bDescriptorType
Dance 0:de885a6da962 140 0x10, 0x01, // bcdUSB
Dance 0:de885a6da962 141 2, // bDeviceClass
Dance 0:de885a6da962 142 0, // bDeviceSubClass
Dance 0:de885a6da962 143 0, // bDeviceProtocol
Dance 0:de885a6da962 144 MAX_PACKET_SIZE_EP0, // bMaxPacketSize0
Dance 0:de885a6da962 145 (uint8_t)(LSB(VENDOR_ID)), (uint8_t)(MSB(VENDOR_ID)), // idVendor
Dance 0:de885a6da962 146 (uint8_t)(LSB(PRODUCT_ID)), (uint8_t)(MSB(PRODUCT_ID)),// idProduct
Dance 0:de885a6da962 147 0x00, 0x01, // bcdDevice
Dance 0:de885a6da962 148 1, // iManufacturer
Dance 0:de885a6da962 149 2, // iProduct
Dance 0:de885a6da962 150 3, // iSerialNumber
Dance 0:de885a6da962 151 1 // bNumConfigurations
Dance 0:de885a6da962 152 };
Dance 0:de885a6da962 153 return deviceDescriptor;
Dance 0:de885a6da962 154 }
Dance 0:de885a6da962 155
Dance 0:de885a6da962 156 uint8_t * USBCDC::stringIinterfaceDesc() {
Dance 0:de885a6da962 157 static uint8_t stringIinterfaceDescriptor[] = {
Dance 0:de885a6da962 158 0x08,
Dance 0:de885a6da962 159 STRING_DESCRIPTOR,
Dance 0:de885a6da962 160 'C',0,'D',0,'C',0,
Dance 0:de885a6da962 161 };
Dance 0:de885a6da962 162 return stringIinterfaceDescriptor;
Dance 0:de885a6da962 163 }
Dance 0:de885a6da962 164
Dance 0:de885a6da962 165 uint8_t * USBCDC::stringIproductDesc() {
Dance 0:de885a6da962 166 static uint8_t stringIproductDescriptor[] = {
Dance 0:de885a6da962 167 0x16,
Dance 0:de885a6da962 168 STRING_DESCRIPTOR,
Dance 0:de885a6da962 169 'C',0,'D',0,'C',0,' ',0,'D',0,'E',0,'V',0,'I',0,'C',0,'E',0
Dance 0:de885a6da962 170 };
Dance 0:de885a6da962 171 return stringIproductDescriptor;
Dance 0:de885a6da962 172 }
Dance 0:de885a6da962 173
Dance 0:de885a6da962 174
Dance 0:de885a6da962 175 #define CONFIG1_DESC_SIZE (9+8+9+5+5+4+5+7+9+7+7)
Dance 0:de885a6da962 176
Dance 0:de885a6da962 177 uint8_t * USBCDC::configurationDesc() {
Dance 0:de885a6da962 178 static uint8_t configDescriptor[] = {
Dance 0:de885a6da962 179 // configuration descriptor
Dance 0:de885a6da962 180 9, // bLength
Dance 0:de885a6da962 181 2, // bDescriptorType
Dance 0:de885a6da962 182 LSB(CONFIG1_DESC_SIZE), // wTotalLength
Dance 0:de885a6da962 183 MSB(CONFIG1_DESC_SIZE),
Dance 0:de885a6da962 184 2, // bNumInterfaces
Dance 0:de885a6da962 185 1, // bConfigurationValue
Dance 0:de885a6da962 186 0, // iConfiguration
Dance 0:de885a6da962 187 0x80, // bmAttributes
Dance 0:de885a6da962 188 50, // bMaxPower
Dance 0:de885a6da962 189
Dance 0:de885a6da962 190 // IAD to associate the two CDC interfaces
Dance 0:de885a6da962 191 0x08, // bLength
Dance 0:de885a6da962 192 0x0b, // bDescriptorType
Dance 0:de885a6da962 193 0x00, // bFirstInterface
Dance 0:de885a6da962 194 0x02, // bInterfaceCount
Dance 0:de885a6da962 195 0x02, // bFunctionClass
Dance 0:de885a6da962 196 0x02, // bFunctionSubClass
Dance 0:de885a6da962 197 0, // bFunctionProtocol
Dance 0:de885a6da962 198 0, // iFunction
Dance 0:de885a6da962 199
Dance 0:de885a6da962 200 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
Dance 0:de885a6da962 201 9, // bLength
Dance 0:de885a6da962 202 4, // bDescriptorType
Dance 0:de885a6da962 203 0, // bInterfaceNumber
Dance 0:de885a6da962 204 0, // bAlternateSetting
Dance 0:de885a6da962 205 1, // bNumEndpoints
Dance 0:de885a6da962 206 0x02, // bInterfaceClass
Dance 0:de885a6da962 207 0x02, // bInterfaceSubClass
Dance 0:de885a6da962 208 0x01, // bInterfaceProtocol
Dance 0:de885a6da962 209 0, // iInterface
Dance 0:de885a6da962 210
Dance 0:de885a6da962 211 // CDC Header Functional Descriptor, CDC Spec 5.2.3.1, Table 26
Dance 0:de885a6da962 212 5, // bFunctionLength
Dance 0:de885a6da962 213 0x24, // bDescriptorType
Dance 0:de885a6da962 214 0x00, // bDescriptorSubtype
Dance 0:de885a6da962 215 0x10, 0x01, // bcdCDC
Dance 0:de885a6da962 216
Dance 0:de885a6da962 217 // Call Management Functional Descriptor, CDC Spec 5.2.3.2, Table 27
Dance 0:de885a6da962 218 5, // bFunctionLength
Dance 0:de885a6da962 219 0x24, // bDescriptorType
Dance 0:de885a6da962 220 0x01, // bDescriptorSubtype
Dance 0:de885a6da962 221 0x03, // bmCapabilities
Dance 0:de885a6da962 222 1, // bDataInterface
Dance 0:de885a6da962 223
Dance 0:de885a6da962 224 // Abstract Control Management Functional Descriptor, CDC Spec 5.2.3.3, Table 28
Dance 0:de885a6da962 225 4, // bFunctionLength
Dance 0:de885a6da962 226 0x24, // bDescriptorType
Dance 0:de885a6da962 227 0x02, // bDescriptorSubtype
Dance 0:de885a6da962 228 0x06, // bmCapabilities
Dance 0:de885a6da962 229
Dance 0:de885a6da962 230 // Union Functional Descriptor, CDC Spec 5.2.3.8, Table 33
Dance 0:de885a6da962 231 5, // bFunctionLength
Dance 0:de885a6da962 232 0x24, // bDescriptorType
Dance 0:de885a6da962 233 0x06, // bDescriptorSubtype
Dance 0:de885a6da962 234 0, // bMasterInterface
Dance 0:de885a6da962 235 1, // bSlaveInterface0
Dance 0:de885a6da962 236
Dance 0:de885a6da962 237 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
Dance 0:de885a6da962 238 ENDPOINT_DESCRIPTOR_LENGTH, // bLength
Dance 0:de885a6da962 239 ENDPOINT_DESCRIPTOR, // bDescriptorType
Dance 0:de885a6da962 240 PHY_TO_DESC(EPINT_IN), // bEndpointAddress
Dance 0:de885a6da962 241 E_INTERRUPT, // bmAttributes (0x03=intr)
Dance 0:de885a6da962 242 LSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (LSB)
Dance 0:de885a6da962 243 MSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (MSB)
Dance 0:de885a6da962 244 16, // bInterval
Dance 0:de885a6da962 245
Dance 0:de885a6da962 246
Dance 0:de885a6da962 247
Dance 0:de885a6da962 248
Dance 0:de885a6da962 249 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
Dance 0:de885a6da962 250 9, // bLength
Dance 0:de885a6da962 251 4, // bDescriptorType
Dance 0:de885a6da962 252 1, // bInterfaceNumber
Dance 0:de885a6da962 253 0, // bAlternateSetting
Dance 0:de885a6da962 254 2, // bNumEndpoints
Dance 0:de885a6da962 255 0x0A, // bInterfaceClass
Dance 0:de885a6da962 256 0x00, // bInterfaceSubClass
Dance 0:de885a6da962 257 0x00, // bInterfaceProtocol
Dance 0:de885a6da962 258 0, // iInterface
Dance 0:de885a6da962 259
Dance 0:de885a6da962 260 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
Dance 0:de885a6da962 261 ENDPOINT_DESCRIPTOR_LENGTH, // bLength
Dance 0:de885a6da962 262 ENDPOINT_DESCRIPTOR, // bDescriptorType
Dance 0:de885a6da962 263 PHY_TO_DESC(EPBULK_IN), // bEndpointAddress
Dance 0:de885a6da962 264 E_BULK, // bmAttributes (0x02=bulk)
Dance 0:de885a6da962 265 LSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (LSB)
Dance 0:de885a6da962 266 MSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (MSB)
Dance 0:de885a6da962 267 0, // bInterval
Dance 0:de885a6da962 268
Dance 0:de885a6da962 269 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
Dance 0:de885a6da962 270 ENDPOINT_DESCRIPTOR_LENGTH, // bLength
Dance 0:de885a6da962 271 ENDPOINT_DESCRIPTOR, // bDescriptorType
Dance 0:de885a6da962 272 PHY_TO_DESC(EPBULK_OUT), // bEndpointAddress
Dance 0:de885a6da962 273 E_BULK, // bmAttributes (0x02=bulk)
Dance 0:de885a6da962 274 LSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (LSB)
Dance 0:de885a6da962 275 MSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (MSB)
Dance 0:de885a6da962 276 0 // bInterval
Dance 0:de885a6da962 277 };
Dance 0:de885a6da962 278 return configDescriptor;
Dance 0:de885a6da962 279 }