Maxim Integrated / Mbed 2 deprecated MAXREFDES132_OneWire_Demo

Demo program for MAXREFDES132. Searches 1-Wire® bus and prints ROM IDs of devices found. If the DS1920 is found presents user with menu for interfacing with the DS1920 temperature iButton

Dependencies:   OneWire Terminal mbed

main.cpp@12:a649f4e955a4, 2017-07-10 (annotated)

Committer:
andrewae
Date:
Mon Jul 10 23:02:11 2017 +0000
Revision:
12:a649f4e955a4
Parent:
11:11a01dc7a2c9 
Fixed print_rom_id

Who changed what in which revision?

UserRevisionLine numberNew contents of line
j3 0:11c9d61c8876 1 /**********************************************************************
j3 0:11c9d61c8876 2 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
j3 0:11c9d61c8876 3 *
j3 0:11c9d61c8876 4 * Permission is hereby granted, free of charge, to any person obtaining a
j3 0:11c9d61c8876 5 * copy of this software and associated documentation files (the "Software"),
j3 0:11c9d61c8876 6 * to deal in the Software without restriction, including without limitation
j3 0:11c9d61c8876 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
j3 0:11c9d61c8876 8 * and/or sell copies of the Software, and to permit persons to whom the
j3 0:11c9d61c8876 9 * Software is furnished to do so, subject to the following conditions:
j3 0:11c9d61c8876 10 *
j3 0:11c9d61c8876 11 * The above copyright notice and this permission notice shall be included
j3 0:11c9d61c8876 12 * in all copies or substantial portions of the Software.
j3 0:11c9d61c8876 13 *
j3 0:11c9d61c8876 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
j3 0:11c9d61c8876 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
j3 0:11c9d61c8876 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
j3 0:11c9d61c8876 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
j3 0:11c9d61c8876 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
j3 0:11c9d61c8876 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
j3 0:11c9d61c8876 20 * OTHER DEALINGS IN THE SOFTWARE.
j3 0:11c9d61c8876 21 *
j3 0:11c9d61c8876 22 * Except as contained in this notice, the name of Maxim Integrated
j3 0:11c9d61c8876 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
j3 0:11c9d61c8876 24 * Products, Inc. Branding Policy.
j3 0:11c9d61c8876 25 *
j3 0:11c9d61c8876 26 * The mere transfer of this software does not imply any licenses
j3 0:11c9d61c8876 27 * of trade secrets, proprietary technology, copyrights, patents,
j3 0:11c9d61c8876 28 * trademarks, maskwork rights, or any other form of intellectual
j3 0:11c9d61c8876 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
j3 0:11c9d61c8876 30 * ownership rights.
j3 0:11c9d61c8876 31 **********************************************************************/
j3 0:11c9d61c8876 32
j3 0:11c9d61c8876 33
j3 0:11c9d61c8876 34 #include "mbed.h"
j3 4:9f799f2e157a 35 #include "OneWire.h"
j3 0:11c9d61c8876 36 #include "Terminal.h"
j3 0:11c9d61c8876 37
j3 0:11c9d61c8876 38 using namespace OneWire;
j3 1:c9d52433407f 39 using namespace RomCommands;
j3 0:11c9d61c8876 40
j3 0:11c9d61c8876 41 void print_rom_id(Terminal & term, const RomId & romId);
j3 0:11c9d61c8876 42 void DS1920Menu(Terminal & term, const RomId & romId, MultidropRomIterator & selector);
j3 0:11c9d61c8876 43
j3 0:11c9d61c8876 44 int main(void)
j3 0:11c9d61c8876 45 {
j3 0:11c9d61c8876 46 Terminal term(USBTX, USBRX);
j3 0:11c9d61c8876 47 char user_entry = 'y';
j3 11:11a01dc7a2c9 48
j3 8:7af592c694b2 49 I2C i2cBus(D14, D15);
j3 8:7af592c694b2 50 i2cBus.frequency(400000);
j3 8:7af592c694b2 51 DS2484 owm(i2cBus);
j3 8:7af592c694b2 52 term.printf("\nStarting I2C to 1-wire Demo\n");
j3 0:11c9d61c8876 53
j3 0:11c9d61c8876 54 OneWireMaster::CmdResult result = owm.OWInitMaster();
j3 0:11c9d61c8876 55
j3 0:11c9d61c8876 56 if(result == OneWireMaster::Success)
j3 0:11c9d61c8876 57 {
j3 0:11c9d61c8876 58 //Rom Iterator for slave devices.
j3 0:11c9d61c8876 59 //Encapsulates owm, ROM cntl fxs, and RomId of device into one object
j3 0:11c9d61c8876 60 //that slave member fxs use to implement ROM cntl fxs so that you don't have too.
j3 0:11c9d61c8876 61 //You just use the features of the slave device
j3 0:11c9d61c8876 62 MultidropRomIterator selector(owm);
j3 0:11c9d61c8876 63
j3 0:11c9d61c8876 64 //Search state var for main loop
j3 1:c9d52433407f 65 SearchState searchState;
j3 0:11c9d61c8876 66
j3 0:11c9d61c8876 67 while(user_entry != 'n')
j3 0:11c9d61c8876 68 {
j3 0:11c9d61c8876 69 result = owm.OWReset();
j3 0:11c9d61c8876 70 if(result == OneWireMaster::Success)
j3 11:11a01dc7a2c9 71 {
j3 11:11a01dc7a2c9 72 term.printf("\nOWReset success, starting search\n");
j3 11:11a01dc7a2c9 73
j3 11:11a01dc7a2c9 74 result = OWFirst(owm, searchState);
j3 11:11a01dc7a2c9 75 if(result == OneWireMaster::Success)
andrewae 10:a43e5b99d61f 76 {
j3 11:11a01dc7a2c9 77 do
andrewae 10:a43e5b99d61f 78 {
j3 11:11a01dc7a2c9 79 //print current devices rom id
j3 11:11a01dc7a2c9 80 print_rom_id(term, searchState.romId);
j3 11:11a01dc7a2c9 81
j3 0:11c9d61c8876 82
j3 11:11a01dc7a2c9 83 //This could be a switch statement based on familyCodes
j3 11:11a01dc7a2c9 84 //if your app has more than one device on the bus
j3 11:11a01dc7a2c9 85 if(searchState.romId.familyCode() == 0x10)
j3 0:11c9d61c8876 86 {
j3 11:11a01dc7a2c9 87 DS1920Menu(term, searchState.romId, selector);
j3 0:11c9d61c8876 88 }
j3 11:11a01dc7a2c9 89
j3 11:11a01dc7a2c9 90 //find the next device if any
j3 11:11a01dc7a2c9 91 result = OWNext(owm, searchState);
j3 0:11c9d61c8876 92 }
j3 11:11a01dc7a2c9 93 while(result == OneWireMaster::Success);
j3 11:11a01dc7a2c9 94 }
j3 11:11a01dc7a2c9 95 else
j3 11:11a01dc7a2c9 96 {
j3 11:11a01dc7a2c9 97 term.printf("\nSearch failed\n");
j3 11:11a01dc7a2c9 98 term.printf("\nError code = %d\n", result);
j3 11:11a01dc7a2c9 99 }
j3 0:11c9d61c8876 100 }
j3 0:11c9d61c8876 101 else
j3 0:11c9d61c8876 102 {
j3 0:11c9d61c8876 103 term.printf("\nFailed to find any 1-wire devices on bus\n");
j3 0:11c9d61c8876 104 term.printf("\nError code = %d\n", result);
j3 0:11c9d61c8876 105 }
j3 0:11c9d61c8876 106
j3 0:11c9d61c8876 107 user_entry = term.get_char("\nEnter 'y' to continue, or 'n' to quit: ", 'n', 'y');
j3 0:11c9d61c8876 108 term.cls();
j3 0:11c9d61c8876 109 term.home();
j3 0:11c9d61c8876 110 }
j3 0:11c9d61c8876 111 }
j3 0:11c9d61c8876 112 else
j3 0:11c9d61c8876 113 {
j3 0:11c9d61c8876 114 term.printf("\nFailed to initialize the 1-wire Master\n");
j3 0:11c9d61c8876 115 term.printf("\nError code = %d\n", result);
j3 0:11c9d61c8876 116 }
j3 0:11c9d61c8876 117
j3 0:11c9d61c8876 118 term.printf("\nEnding Program\n");
j3 0:11c9d61c8876 119
j3 0:11c9d61c8876 120 return 0;
j3 0:11c9d61c8876 121 }
j3 0:11c9d61c8876 122 //***** end main ******************************************************
j3 0:11c9d61c8876 123
j3 0:11c9d61c8876 124
j3 0:11c9d61c8876 125 //*********************************************************************
j3 0:11c9d61c8876 126 void print_rom_id(Terminal & term, const RomId & romId)
j3 0:11c9d61c8876 127 {
j3 0:11c9d61c8876 128 //print the rom number
andrewae 12:a649f4e955a4 129 term.printf("\r\n");
andrewae 12:a649f4e955a4 130 for(int idx = 7; idx >= 0; idx--) {
andrewae 12:a649f4e955a4 131 term.printf("0x%02x ", romId.buffer[idx]);
j3 0:11c9d61c8876 132 }
andrewae 12:a649f4e955a4 133 term.printf("\r\n");
j3 0:11c9d61c8876 134 }
j3 0:11c9d61c8876 135
j3 0:11c9d61c8876 136
j3 0:11c9d61c8876 137 //*********************************************************************
j3 0:11c9d61c8876 138 void DS1920Menu(Terminal & term, const RomId & romId, MultidropRomIterator & selector)
j3 0:11c9d61c8876 139 {
j3 0:11c9d61c8876 140 char userEntry = '0';
j3 0:11c9d61c8876 141 uint8_t th, tl, idx;
j3 0:11c9d61c8876 142 uint8_t scratchPadBuff[8];
j3 0:11c9d61c8876 143 float temperature;
j3 0:11c9d61c8876 144
j3 0:11c9d61c8876 145 DS1920 tempIbutton(selector);
j3 0:11c9d61c8876 146 DS1920::CmdResult result = DS1920::OpFailure;
j3 1:c9d52433407f 147 tempIbutton.setRomId(romId);
j3 0:11c9d61c8876 148
j3 0:11c9d61c8876 149 while(userEntry != '7')
j3 0:11c9d61c8876 150 {
j3 0:11c9d61c8876 151 term.printf("\nDS1920 Menu Options\n");
j3 0:11c9d61c8876 152 term.printf("\n%t1. Write ScratchPad");
j3 0:11c9d61c8876 153 term.printf("\n%t2. Read Scratchpad");
j3 0:11c9d61c8876 154 term.printf("\n%t3. Copy Scratchpad");
j3 0:11c9d61c8876 155 term.printf("\n%t4. Convert Temperature");
j3 0:11c9d61c8876 156 term.printf("\n%t5. Recall EEPROM");
j3 0:11c9d61c8876 157 term.printf("\n%t6. Clear Screen");
j3 0:11c9d61c8876 158 term.printf("\n%t7. Quit");
j3 0:11c9d61c8876 159
j3 0:11c9d61c8876 160 userEntry = term.get_char("\nPlease select an option above: ", '1', '7');
j3 0:11c9d61c8876 161
j3 0:11c9d61c8876 162 switch(userEntry)
j3 0:11c9d61c8876 163 {
j3 0:11c9d61c8876 164 case '1':
j3 0:11c9d61c8876 165 th = term.get_int32("\nPlease enter upper temperature threshold, integer values only: ", 0, 100);
j3 0:11c9d61c8876 166 tl = term.get_int32("\nPlease enter lower temperature threshold, integer values only: ", -55, 0);
j3 0:11c9d61c8876 167
j3 0:11c9d61c8876 168 result = tempIbutton.writeScratchPad(th, tl);
j3 0:11c9d61c8876 169 if(result == DS1920::Success)
j3 0:11c9d61c8876 170 {
j3 0:11c9d61c8876 171 term.printf("\nWrite Scratchpad Success\n");
j3 0:11c9d61c8876 172 }
j3 0:11c9d61c8876 173 else
j3 0:11c9d61c8876 174 {
j3 0:11c9d61c8876 175 term.printf("\nWrite Scratchpad Fail\n");
j3 0:11c9d61c8876 176 }
j3 0:11c9d61c8876 177
j3 0:11c9d61c8876 178 break;
j3 0:11c9d61c8876 179
j3 0:11c9d61c8876 180 case '2':
j3 0:11c9d61c8876 181
j3 0:11c9d61c8876 182 result = tempIbutton.readScratchPad(scratchPadBuff);
j3 0:11c9d61c8876 183 if(result == DS1920::Success)
j3 0:11c9d61c8876 184 {
j3 0:11c9d61c8876 185 term.printf("\nRead Scratchpad Success\n");
j3 0:11c9d61c8876 186 term.printf("\nScratchpad = ");
j3 0:11c9d61c8876 187 for(idx = 0; idx < 8; idx++)
j3 0:11c9d61c8876 188 {
j3 0:11c9d61c8876 189 if(scratchPadBuff[idx] < 16)
j3 0:11c9d61c8876 190 {
j3 0:11c9d61c8876 191 term.printf("0x0%x ", scratchPadBuff[idx]);
j3 0:11c9d61c8876 192 }
j3 0:11c9d61c8876 193 else
j3 0:11c9d61c8876 194 {
j3 0:11c9d61c8876 195 term.printf("0x%2x ", scratchPadBuff[idx]);
j3 0:11c9d61c8876 196 }
j3 0:11c9d61c8876 197 }
j3 0:11c9d61c8876 198 term.printf("\n");
j3 0:11c9d61c8876 199
j3 0:11c9d61c8876 200 }
j3 0:11c9d61c8876 201 else
j3 0:11c9d61c8876 202 {
j3 0:11c9d61c8876 203 term.printf("\nRead Scratchpad Fail\n");
j3 0:11c9d61c8876 204 }
j3 0:11c9d61c8876 205
j3 0:11c9d61c8876 206 break;
j3 0:11c9d61c8876 207
j3 0:11c9d61c8876 208 case '3':
j3 0:11c9d61c8876 209
j3 0:11c9d61c8876 210 result = tempIbutton.copyScratchPad();
j3 0:11c9d61c8876 211 if(result == DS1920::Success)
j3 0:11c9d61c8876 212 {
j3 0:11c9d61c8876 213 term.printf("\nCopy Scratchpad Success\n");
j3 0:11c9d61c8876 214 }
j3 0:11c9d61c8876 215 else
j3 0:11c9d61c8876 216 {
j3 0:11c9d61c8876 217 term.printf("\nCopy Scratchpad Fail\n");
j3 0:11c9d61c8876 218 }
j3 0:11c9d61c8876 219
j3 0:11c9d61c8876 220 break;
j3 0:11c9d61c8876 221
j3 0:11c9d61c8876 222 case '4':
j3 0:11c9d61c8876 223
j3 0:11c9d61c8876 224 result = tempIbutton.convertTemperature(temperature);
j3 0:11c9d61c8876 225 if(result == DS1920::Success)
j3 0:11c9d61c8876 226 {
j3 0:11c9d61c8876 227 term.printf("\nConvert Temperature Success\n");
j3 0:11c9d61c8876 228 term.printf("\nTemperature = %.1f", temperature);
j3 0:11c9d61c8876 229 }
j3 0:11c9d61c8876 230 else
j3 0:11c9d61c8876 231 {
j3 0:11c9d61c8876 232 term.printf("\nConvert Temperature Fail\n");
j3 0:11c9d61c8876 233 }
j3 0:11c9d61c8876 234
j3 0:11c9d61c8876 235 break;
j3 0:11c9d61c8876 236
j3 0:11c9d61c8876 237 case '5':
j3 0:11c9d61c8876 238
j3 0:11c9d61c8876 239 result = tempIbutton.recallEEPROM();
j3 0:11c9d61c8876 240 if(result == DS1920::Success)
j3 0:11c9d61c8876 241 {
j3 0:11c9d61c8876 242 term.printf("\nRecall EEPROM Success\n");
j3 0:11c9d61c8876 243 }
j3 0:11c9d61c8876 244 else
j3 0:11c9d61c8876 245 {
j3 0:11c9d61c8876 246 term.printf("\nRecall EEPROM Fail\n");
j3 0:11c9d61c8876 247 }
j3 0:11c9d61c8876 248
j3 0:11c9d61c8876 249 break;
j3 0:11c9d61c8876 250
j3 0:11c9d61c8876 251 case '6':
j3 0:11c9d61c8876 252 term.cls();
j3 0:11c9d61c8876 253 term.home();
j3 0:11c9d61c8876 254 break;
j3 0:11c9d61c8876 255
j3 0:11c9d61c8876 256 case '7':
j3 0:11c9d61c8876 257 term.printf("\nLeaving DS1920 Menu Options\n");
j3 0:11c9d61c8876 258 break;
j3 0:11c9d61c8876 259
j3 0:11c9d61c8876 260 default:
j3 0:11c9d61c8876 261 mbed_die();
j3 0:11c9d61c8876 262 break;
j3 0:11c9d61c8876 263 }
j3 0:11c9d61c8876 264 }
j3 0:11c9d61c8876 265 }