Mike Fruge / OneWire

Implementation of 1-Wire with added Alarm Search Functionality

Dependents:   Max32630_One_Wire_Interface

Slaves/Bridges/DS28E17/DS28E17.cpp@108:01aa7b13a5f9, 2016-08-04 (annotated)

Committer:
j3
Date:
Thu Aug 04 20:20:32 2016 +0000
Revision:
108:01aa7b13a5f9
Parent:
107:4697f641eafb 
removed I2C prefix from DS28E17 mbr fxs

Who changed what in which revision?

UserRevisionLine numberNew contents of line
j3 4:ca27db159b10 1 /******************************************************************//**
j3 4:ca27db159b10 2 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
j3 4:ca27db159b10 3 *
j3 4:ca27db159b10 4 * Permission is hereby granted, free of charge, to any person obtaining a
j3 4:ca27db159b10 5 * copy of this software and associated documentation files (the "Software"),
j3 4:ca27db159b10 6 * to deal in the Software without restriction, including without limitation
j3 4:ca27db159b10 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
j3 4:ca27db159b10 8 * and/or sell copies of the Software, and to permit persons to whom the
j3 4:ca27db159b10 9 * Software is furnished to do so, subject to the following conditions:
j3 4:ca27db159b10 10 *
j3 4:ca27db159b10 11 * The above copyright notice and this permission notice shall be included
j3 4:ca27db159b10 12 * in all copies or substantial portions of the Software.
j3 4:ca27db159b10 13 *
j3 4:ca27db159b10 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
j3 4:ca27db159b10 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
j3 4:ca27db159b10 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
j3 4:ca27db159b10 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
j3 4:ca27db159b10 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
j3 4:ca27db159b10 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
j3 4:ca27db159b10 20 * OTHER DEALINGS IN THE SOFTWARE.
j3 4:ca27db159b10 21 *
j3 4:ca27db159b10 22 * Except as contained in this notice, the name of Maxim Integrated
j3 4:ca27db159b10 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
j3 4:ca27db159b10 24 * Products, Inc. Branding Policy.
j3 4:ca27db159b10 25 *
j3 4:ca27db159b10 26 * The mere transfer of this software does not imply any licenses
j3 4:ca27db159b10 27 * of trade secrets, proprietary technology, copyrights, patents,
j3 4:ca27db159b10 28 * trademarks, maskwork rights, or any other form of intellectual
j3 4:ca27db159b10 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
j3 4:ca27db159b10 30 * ownership rights.
j3 4:ca27db159b10 31 **********************************************************************/
j3 4:ca27db159b10 32
IanBenzMaxim 73:2cecc1372acc 33 #include "Masters/OneWireMaster.h"
j3 104:3f48daed532b 34 #include "Slaves/Bridges/DS28E17/DS28E17.h"
IanBenzMaxim 86:2ce08ca58b9e 35 #include "Utilities/crc.h"
j3 4:ca27db159b10 36
IanBenzMaxim 76:84e6c4994e29 37 using OneWire::DS28E17;
IanBenzMaxim 76:84e6c4994e29 38 using OneWire::OneWireMaster;
IanBenzMaxim 78:0cbbac7f2016 39 using namespace OneWire::crc;
IanBenzMaxim 75:8b627804927c 40
IanBenzMaxim 75:8b627804927c 41 enum Command
IanBenzMaxim 75:8b627804927c 42 {
IanBenzMaxim 75:8b627804927c 43 WriteDataWithStopCmd = 0x4B,
IanBenzMaxim 75:8b627804927c 44 WriteDataNoStopCmd = 0x5A,
IanBenzMaxim 75:8b627804927c 45 WriteDataOnlyCmd = 0x69,
IanBenzMaxim 75:8b627804927c 46 WriteDataOnlyWithStopCmd = 0x78,
IanBenzMaxim 75:8b627804927c 47 ReadDataWithStopCmd = 0x87,
IanBenzMaxim 75:8b627804927c 48 WriteReadDataWithStopCmd = 0x2D,
IanBenzMaxim 75:8b627804927c 49 WriteConfigurationCmd = 0xD2,
IanBenzMaxim 75:8b627804927c 50 ReadConfigurationCmd = 0xE1,
IanBenzMaxim 75:8b627804927c 51 EnableSleepModeCmd = 0x1E,
IanBenzMaxim 75:8b627804927c 52 ReadDeviceRevisionCmd = 0xC3
IanBenzMaxim 75:8b627804927c 53 };
IanBenzMaxim 75:8b627804927c 54
IanBenzMaxim 75:8b627804927c 55
j3 4:ca27db159b10 56 //*********************************************************************
IanBenzMaxim 77:529edb329ee0 57 DS28E17::DS28E17(RandomAccessRomIterator &selector)
IanBenzMaxim 77:529edb329ee0 58 : OneWireSlave(selector)
j3 4:ca27db159b10 59 {
IanBenzMaxim 74:23be10c32fa3 60
j3 4:ca27db159b10 61 }
j3 4:ca27db159b10 62
j3 4:ca27db159b10 63
j3 4:ca27db159b10 64 //*********************************************************************
j3 108:01aa7b13a5f9 65 DS28E17::CmdResult DS28E17::writeDataWithStop(uint8_t I2C_addr, uint8_t length,
IanBenzMaxim 74:23be10c32fa3 66 uint8_t *data, uint8_t &status,
IanBenzMaxim 74:23be10c32fa3 67 uint8_t &wr_status)
j3 4:ca27db159b10 68 {
IanBenzMaxim 73:2cecc1372acc 69 DS28E17::CmdResult bridge_result = DS28E17::OperationFailure;
IanBenzMaxim 74:23be10c32fa3 70
j3 7:78a8857b3810 71 size_t send_cnt = 0;
j3 7:78a8857b3810 72 uint8_t send_block[0xff];
IanBenzMaxim 74:23be10c32fa3 73
IanBenzMaxim 77:529edb329ee0 74 OneWireMaster::CmdResult ow_result = selectDevice();
IanBenzMaxim 74:23be10c32fa3 75
IanBenzMaxim 74:23be10c32fa3 76 if (ow_result == OneWireMaster::Success)
j3 7:78a8857b3810 77 {
j3 7:78a8857b3810 78 //seed the crc
IanBenzMaxim 78:0cbbac7f2016 79 uint16_t crc16 = 0;
IanBenzMaxim 74:23be10c32fa3 80
j3 7:78a8857b3810 81 // Form the 1-Wire Packet
IanBenzMaxim 74:23be10c32fa3 82
j3 7:78a8857b3810 83 // I2C Write Data with Stop command
IanBenzMaxim 75:8b627804927c 84 send_block[send_cnt] = WriteDataWithStopCmd;
IanBenzMaxim 78:0cbbac7f2016 85 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 86
j3 7:78a8857b3810 87 // I2C Address
j3 7:78a8857b3810 88 send_block[send_cnt] = I2C_addr;
IanBenzMaxim 78:0cbbac7f2016 89 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 90
j3 7:78a8857b3810 91 // Length field
j3 7:78a8857b3810 92 send_block[send_cnt] = length;
IanBenzMaxim 78:0cbbac7f2016 93 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 94
j3 7:78a8857b3810 95 // Form the write data
IanBenzMaxim 74:23be10c32fa3 96 for (size_t idx = 0; idx < length; idx++)
j3 7:78a8857b3810 97 {
j3 7:78a8857b3810 98 send_block[send_cnt] = data[idx];
IanBenzMaxim 78:0cbbac7f2016 99 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
j3 7:78a8857b3810 100 }
IanBenzMaxim 74:23be10c32fa3 101
j3 7:78a8857b3810 102 // Form the CRC16
IanBenzMaxim 78:0cbbac7f2016 103 crc16 ^= 0xFFFF;
IanBenzMaxim 78:0cbbac7f2016 104 send_block[send_cnt++] = ((uint8_t)(crc16 & 0xFF));
IanBenzMaxim 78:0cbbac7f2016 105 send_block[send_cnt++] = ((uint8_t)((crc16 >> 8) & 0xFF));
IanBenzMaxim 74:23be10c32fa3 106
j3 7:78a8857b3810 107 // Send Packet
j3 107:4697f641eafb 108 bridge_result = sendPacket(send_block, send_cnt, status, wr_status);
j3 7:78a8857b3810 109 }
IanBenzMaxim 74:23be10c32fa3 110
j3 17:b646b1e3970b 111 return bridge_result;
j3 4:ca27db159b10 112 }
j3 4:ca27db159b10 113
j3 4:ca27db159b10 114
j3 4:ca27db159b10 115 //*********************************************************************
j3 108:01aa7b13a5f9 116 DS28E17::CmdResult DS28E17::writeDataNoStop(uint8_t I2C_addr, uint8_t length,
IanBenzMaxim 74:23be10c32fa3 117 uint8_t *data, uint8_t &status,
IanBenzMaxim 74:23be10c32fa3 118 uint8_t &wr_status)
j3 4:ca27db159b10 119 {
IanBenzMaxim 73:2cecc1372acc 120 DS28E17::CmdResult bridge_result = DS28E17::OperationFailure;
IanBenzMaxim 74:23be10c32fa3 121
j3 7:78a8857b3810 122 size_t send_cnt = 0;
j3 7:78a8857b3810 123 uint8_t send_block[0xff];
IanBenzMaxim 74:23be10c32fa3 124
IanBenzMaxim 77:529edb329ee0 125 OneWireMaster::CmdResult ow_result = selectDevice();
IanBenzMaxim 74:23be10c32fa3 126
IanBenzMaxim 74:23be10c32fa3 127 if (ow_result == OneWireMaster::Success)
j3 7:78a8857b3810 128 {
j3 7:78a8857b3810 129 // seed the crc
IanBenzMaxim 78:0cbbac7f2016 130 uint16_t crc16 = 0;
IanBenzMaxim 74:23be10c32fa3 131
j3 7:78a8857b3810 132 // I2C Write Data with Stop command
IanBenzMaxim 75:8b627804927c 133 send_block[send_cnt] = WriteDataNoStopCmd;
IanBenzMaxim 78:0cbbac7f2016 134 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 135
j3 7:78a8857b3810 136 // I2C Address
j3 7:78a8857b3810 137 send_block[send_cnt] = I2C_addr;
IanBenzMaxim 78:0cbbac7f2016 138 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 139
j3 7:78a8857b3810 140 // Length field
j3 7:78a8857b3810 141 send_block[send_cnt] = length;
IanBenzMaxim 78:0cbbac7f2016 142 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 143
j3 7:78a8857b3810 144 // Form the write data
IanBenzMaxim 74:23be10c32fa3 145 for (size_t idx = 0; idx < length; idx++)
j3 7:78a8857b3810 146 {
j3 7:78a8857b3810 147 send_block[send_cnt] = data[idx];
IanBenzMaxim 78:0cbbac7f2016 148 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
j3 7:78a8857b3810 149 }
IanBenzMaxim 74:23be10c32fa3 150
j3 7:78a8857b3810 151 // Form the CRC16
IanBenzMaxim 78:0cbbac7f2016 152 crc16 ^= 0xFFFF;
IanBenzMaxim 78:0cbbac7f2016 153 send_block[send_cnt++] = ((uint8_t)(crc16 & 0xFF));
IanBenzMaxim 78:0cbbac7f2016 154 send_block[send_cnt++] = ((uint8_t)((crc16 >> 8) & 0xFF));
IanBenzMaxim 74:23be10c32fa3 155
j3 7:78a8857b3810 156 // Send Packet
j3 107:4697f641eafb 157 bridge_result = sendPacket(send_block, send_cnt, status, wr_status);
j3 7:78a8857b3810 158 }
IanBenzMaxim 74:23be10c32fa3 159
j3 17:b646b1e3970b 160 return bridge_result;
j3 4:ca27db159b10 161 }
j3 4:ca27db159b10 162
j3 4:ca27db159b10 163
j3 4:ca27db159b10 164 //*********************************************************************
j3 108:01aa7b13a5f9 165 DS28E17::CmdResult DS28E17::writeDataOnly(uint8_t length, uint8_t *data,
IanBenzMaxim 74:23be10c32fa3 166 uint8_t &status, uint8_t &wr_status)
j3 4:ca27db159b10 167 {
IanBenzMaxim 73:2cecc1372acc 168 DS28E17::CmdResult bridge_result = DS28E17::OperationFailure;
IanBenzMaxim 74:23be10c32fa3 169
j3 7:78a8857b3810 170 size_t send_cnt = 0;
j3 7:78a8857b3810 171 uint8_t send_block[0xff];
IanBenzMaxim 74:23be10c32fa3 172
IanBenzMaxim 77:529edb329ee0 173 OneWireMaster::CmdResult ow_result = selectDevice();
IanBenzMaxim 74:23be10c32fa3 174
IanBenzMaxim 74:23be10c32fa3 175 if (ow_result == OneWireMaster::Success)
j3 7:78a8857b3810 176 {
j3 7:78a8857b3810 177 // seed the crc
IanBenzMaxim 78:0cbbac7f2016 178 uint16_t crc16 = 0;
IanBenzMaxim 74:23be10c32fa3 179
j3 7:78a8857b3810 180 // Form the 1-Wire Packet
IanBenzMaxim 74:23be10c32fa3 181
j3 7:78a8857b3810 182 // I2C Write Data with Stop command
IanBenzMaxim 75:8b627804927c 183 send_block[send_cnt] = WriteDataOnlyCmd;
IanBenzMaxim 78:0cbbac7f2016 184 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 185
j3 7:78a8857b3810 186 // Length field
j3 7:78a8857b3810 187 send_block[send_cnt] = length;
IanBenzMaxim 78:0cbbac7f2016 188 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 189
j3 7:78a8857b3810 190 // Form the write data
IanBenzMaxim 74:23be10c32fa3 191 for (size_t idx = 0; idx < length; idx++)
j3 7:78a8857b3810 192 {
j3 7:78a8857b3810 193 send_block[send_cnt] = data[idx];
IanBenzMaxim 78:0cbbac7f2016 194 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
j3 7:78a8857b3810 195 }
IanBenzMaxim 74:23be10c32fa3 196
IanBenzMaxim 78:0cbbac7f2016 197 // Form the CRC16
IanBenzMaxim 78:0cbbac7f2016 198 crc16 ^= 0xFFFF;
IanBenzMaxim 78:0cbbac7f2016 199 send_block[send_cnt++] = (crc16 & 0xFF);
IanBenzMaxim 78:0cbbac7f2016 200 send_block[send_cnt++] = ((crc16 >> 8) & 0xFF);
IanBenzMaxim 74:23be10c32fa3 201
j3 7:78a8857b3810 202 // Send Packet
j3 107:4697f641eafb 203 bridge_result = sendPacket(send_block, send_cnt, status, wr_status);
j3 7:78a8857b3810 204 }
IanBenzMaxim 74:23be10c32fa3 205
j3 17:b646b1e3970b 206 return bridge_result;
j3 4:ca27db159b10 207 }
j3 4:ca27db159b10 208
j3 4:ca27db159b10 209
j3 4:ca27db159b10 210 //*********************************************************************
j3 108:01aa7b13a5f9 211 DS28E17::CmdResult DS28E17::writeDataOnlyWithStop(uint8_t length, uint8_t *data,
IanBenzMaxim 74:23be10c32fa3 212 uint8_t &status, uint8_t &wr_status)
j3 4:ca27db159b10 213 {
IanBenzMaxim 73:2cecc1372acc 214 DS28E17::CmdResult bridge_result = DS28E17::OperationFailure;
IanBenzMaxim 74:23be10c32fa3 215
j3 7:78a8857b3810 216 size_t send_cnt = 0;
j3 7:78a8857b3810 217 uint8_t send_block[0xff];
IanBenzMaxim 74:23be10c32fa3 218
IanBenzMaxim 77:529edb329ee0 219 OneWireMaster::CmdResult ow_result = selectDevice();
IanBenzMaxim 74:23be10c32fa3 220
IanBenzMaxim 74:23be10c32fa3 221 if (ow_result == OneWireMaster::Success)
j3 7:78a8857b3810 222 {
j3 7:78a8857b3810 223 //seed the crc
IanBenzMaxim 78:0cbbac7f2016 224 uint16_t crc16 = 0;
IanBenzMaxim 74:23be10c32fa3 225
j3 7:78a8857b3810 226 // Form the 1-Wire Packet
IanBenzMaxim 74:23be10c32fa3 227
j3 7:78a8857b3810 228 // I2C Write Data with Stop command
IanBenzMaxim 75:8b627804927c 229 send_block[send_cnt] = WriteDataOnlyWithStopCmd;
IanBenzMaxim 78:0cbbac7f2016 230 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 231
j3 7:78a8857b3810 232 // Length field
j3 7:78a8857b3810 233 send_block[send_cnt] = length;
IanBenzMaxim 78:0cbbac7f2016 234 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 235
j3 7:78a8857b3810 236 // Form the write data
IanBenzMaxim 74:23be10c32fa3 237 for (size_t idx = 0; idx < length; idx++)
j3 7:78a8857b3810 238 {
j3 7:78a8857b3810 239 send_block[send_cnt] = data[idx];
IanBenzMaxim 78:0cbbac7f2016 240 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
j3 7:78a8857b3810 241 }
IanBenzMaxim 74:23be10c32fa3 242
j3 7:78a8857b3810 243 // Form the CRC16
IanBenzMaxim 78:0cbbac7f2016 244 crc16 ^= 0xFFFF;
IanBenzMaxim 78:0cbbac7f2016 245 send_block[send_cnt++] = (crc16 & 0xFF);
IanBenzMaxim 78:0cbbac7f2016 246 send_block[send_cnt++] = ((crc16 >> 8) & 0xFF);
IanBenzMaxim 74:23be10c32fa3 247
j3 7:78a8857b3810 248 // Send Packet
j3 107:4697f641eafb 249 bridge_result = sendPacket(send_block, send_cnt, status, wr_status);
IanBenzMaxim 74:23be10c32fa3 250 }
IanBenzMaxim 74:23be10c32fa3 251
j3 17:b646b1e3970b 252 return bridge_result;
j3 4:ca27db159b10 253 }
j3 4:ca27db159b10 254
j3 4:ca27db159b10 255
j3 4:ca27db159b10 256 //*********************************************************************
j3 108:01aa7b13a5f9 257 DS28E17::CmdResult DS28E17::writeReadDataWithStop(uint8_t I2C_addr, uint8_t length,
IanBenzMaxim 74:23be10c32fa3 258 uint8_t *data, uint8_t nu_bytes_read,
IanBenzMaxim 74:23be10c32fa3 259 uint8_t &status, uint8_t &wr_status,
IanBenzMaxim 74:23be10c32fa3 260 uint8_t *read_data)
j3 4:ca27db159b10 261 {
IanBenzMaxim 73:2cecc1372acc 262 DS28E17::CmdResult bridge_result = DS28E17::OperationFailure;
IanBenzMaxim 74:23be10c32fa3 263
j3 7:78a8857b3810 264 size_t send_cnt = 0;
j3 7:78a8857b3810 265 size_t idx = 0;
j3 7:78a8857b3810 266 uint8_t send_block[0xff];
IanBenzMaxim 74:23be10c32fa3 267
IanBenzMaxim 77:529edb329ee0 268 OneWireMaster::CmdResult ow_result = selectDevice();
IanBenzMaxim 74:23be10c32fa3 269
IanBenzMaxim 74:23be10c32fa3 270 if (ow_result == OneWireMaster::Success)
j3 7:78a8857b3810 271 {
j3 7:78a8857b3810 272 //seed the crc
IanBenzMaxim 78:0cbbac7f2016 273 uint16_t crc16 = 0;
IanBenzMaxim 74:23be10c32fa3 274
j3 7:78a8857b3810 275 // Form the 1-Wire Packet
IanBenzMaxim 74:23be10c32fa3 276
j3 7:78a8857b3810 277 // I2C Write Data with Stop command
IanBenzMaxim 75:8b627804927c 278 send_block[send_cnt] = WriteReadDataWithStopCmd;
IanBenzMaxim 78:0cbbac7f2016 279 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 280
j3 7:78a8857b3810 281 // I2C Address
j3 7:78a8857b3810 282 send_block[send_cnt] = I2C_addr;
IanBenzMaxim 78:0cbbac7f2016 283 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 284
j3 7:78a8857b3810 285 // Length field
j3 7:78a8857b3810 286 send_block[send_cnt] = length;
IanBenzMaxim 78:0cbbac7f2016 287 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 288
j3 7:78a8857b3810 289 // Form the write data
IanBenzMaxim 74:23be10c32fa3 290 for (idx = 0; idx < length; idx++)
j3 7:78a8857b3810 291 {
j3 7:78a8857b3810 292 send_block[send_cnt] = data[idx];
IanBenzMaxim 78:0cbbac7f2016 293 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
j3 7:78a8857b3810 294 }
IanBenzMaxim 74:23be10c32fa3 295
j3 7:78a8857b3810 296 // # of bytes to Read field
j3 7:78a8857b3810 297 send_block[send_cnt] = nu_bytes_read;
IanBenzMaxim 78:0cbbac7f2016 298 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 299
j3 7:78a8857b3810 300 // Form the CRC16
IanBenzMaxim 78:0cbbac7f2016 301 crc16 ^= 0xFFFF;
IanBenzMaxim 78:0cbbac7f2016 302 send_block[send_cnt++] = (crc16 & 0xFF);
IanBenzMaxim 78:0cbbac7f2016 303 send_block[send_cnt++] = ((crc16 >> 8) & 0xFF);
IanBenzMaxim 74:23be10c32fa3 304
j3 7:78a8857b3810 305 // Send Packet
j3 107:4697f641eafb 306 bridge_result = sendPacket(send_block, send_cnt, status, wr_status);
IanBenzMaxim 74:23be10c32fa3 307 if (bridge_result == DS28E17::Success)
j3 7:78a8857b3810 308 {
IanBenzMaxim 77:529edb329ee0 309 ow_result = master().OWReadBlock(read_data, nu_bytes_read);
IanBenzMaxim 74:23be10c32fa3 310 if (ow_result == OneWireMaster::Success)
j3 7:78a8857b3810 311 {
IanBenzMaxim 73:2cecc1372acc 312 bridge_result = DS28E17::Success;
j3 7:78a8857b3810 313 }
j3 17:b646b1e3970b 314 else
j3 17:b646b1e3970b 315 {
IanBenzMaxim 73:2cecc1372acc 316 bridge_result = DS28E17::CommsReadBlockError;
j3 17:b646b1e3970b 317 }
j3 7:78a8857b3810 318 }
j3 7:78a8857b3810 319 }
IanBenzMaxim 74:23be10c32fa3 320
j3 17:b646b1e3970b 321 return bridge_result;
j3 4:ca27db159b10 322 }
j3 4:ca27db159b10 323
j3 4:ca27db159b10 324
j3 4:ca27db159b10 325 //*********************************************************************
j3 108:01aa7b13a5f9 326 DS28E17::CmdResult DS28E17::readDataWithStop(uint8_t I2C_addr, uint8_t nu_bytes_read,
IanBenzMaxim 74:23be10c32fa3 327 uint8_t &status, uint8_t *read_data)
j3 4:ca27db159b10 328 {
IanBenzMaxim 73:2cecc1372acc 329 DS28E17::CmdResult bridge_result = DS28E17::OperationFailure;
IanBenzMaxim 74:23be10c32fa3 330
j3 7:78a8857b3810 331 size_t send_cnt = 0;
j3 7:78a8857b3810 332 uint8_t send_block[0xff];
IanBenzMaxim 74:23be10c32fa3 333
IanBenzMaxim 77:529edb329ee0 334 OneWireMaster::CmdResult ow_result = selectDevice();
IanBenzMaxim 74:23be10c32fa3 335
IanBenzMaxim 74:23be10c32fa3 336 if (ow_result == OneWireMaster::Success)
j3 7:78a8857b3810 337 {
j3 7:78a8857b3810 338 //seed the crc for transmit bytes
IanBenzMaxim 78:0cbbac7f2016 339 uint16_t crc16 = 0;
IanBenzMaxim 74:23be10c32fa3 340
j3 7:78a8857b3810 341 // Form the 1-Wire Packet to send
IanBenzMaxim 74:23be10c32fa3 342
j3 7:78a8857b3810 343 // I2C Write Data with Stop command
IanBenzMaxim 75:8b627804927c 344 send_block[send_cnt] = ReadDataWithStopCmd;
IanBenzMaxim 78:0cbbac7f2016 345 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 346
j3 7:78a8857b3810 347 // I2C Address
j3 7:78a8857b3810 348 send_block[send_cnt] = I2C_addr;
IanBenzMaxim 78:0cbbac7f2016 349 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 350
j3 7:78a8857b3810 351 // # of bytes to Read field
j3 7:78a8857b3810 352 send_block[send_cnt] = nu_bytes_read;
IanBenzMaxim 78:0cbbac7f2016 353 crc16 = calculateCrc16(crc16, send_block[send_cnt++]);
IanBenzMaxim 74:23be10c32fa3 354
j3 7:78a8857b3810 355 // Form the CRC16
IanBenzMaxim 78:0cbbac7f2016 356 crc16 ^= 0xFFFF;
IanBenzMaxim 78:0cbbac7f2016 357 send_block[send_cnt++] = (crc16 & 0xFF);
IanBenzMaxim 78:0cbbac7f2016 358 send_block[send_cnt++] = ((crc16 >> 8) & 0xFF);
IanBenzMaxim 74:23be10c32fa3 359
j3 7:78a8857b3810 360 // Send Packet
j3 107:4697f641eafb 361 bridge_result = sendPacket(send_block, send_cnt, status);
IanBenzMaxim 74:23be10c32fa3 362 if (bridge_result == DS28E17::Success)
j3 7:78a8857b3810 363 {
IanBenzMaxim 77:529edb329ee0 364 ow_result = master().OWReadBlock(read_data, nu_bytes_read);
IanBenzMaxim 74:23be10c32fa3 365 if (ow_result == OneWireMaster::Success)
j3 7:78a8857b3810 366 {
IanBenzMaxim 73:2cecc1372acc 367 bridge_result = DS28E17::Success;
j3 7:78a8857b3810 368 }
j3 17:b646b1e3970b 369 else
j3 17:b646b1e3970b 370 {
IanBenzMaxim 73:2cecc1372acc 371 bridge_result = DS28E17::CommsReadBlockError;
j3 17:b646b1e3970b 372 }
j3 7:78a8857b3810 373 }
j3 7:78a8857b3810 374 }
IanBenzMaxim 74:23be10c32fa3 375
j3 17:b646b1e3970b 376 return bridge_result;
j3 4:ca27db159b10 377 }
j3 4:ca27db159b10 378
j3 4:ca27db159b10 379
j3 4:ca27db159b10 380 //*********************************************************************
j3 107:4697f641eafb 381 DS28E17::CmdResult DS28E17::writeConfigReg(uint8_t data)
j3 7:78a8857b3810 382 {
IanBenzMaxim 73:2cecc1372acc 383 DS28E17::CmdResult bridge_result = DS28E17::OperationFailure;
IanBenzMaxim 74:23be10c32fa3 384
IanBenzMaxim 77:529edb329ee0 385 OneWireMaster::CmdResult ow_result = selectDevice();
IanBenzMaxim 74:23be10c32fa3 386
IanBenzMaxim 74:23be10c32fa3 387 if (ow_result == OneWireMaster::Success)
j3 7:78a8857b3810 388 {
j3 7:78a8857b3810 389 // Send CMD and Data
IanBenzMaxim 75:8b627804927c 390 uint8_t send_block[] = { WriteConfigurationCmd, data };
IanBenzMaxim 74:23be10c32fa3 391
IanBenzMaxim 77:529edb329ee0 392 ow_result = master().OWWriteBlock(send_block, 2);
IanBenzMaxim 74:23be10c32fa3 393 if (ow_result == OneWireMaster::Success)
j3 17:b646b1e3970b 394 {
IanBenzMaxim 73:2cecc1372acc 395 bridge_result = DS28E17::Success;
j3 17:b646b1e3970b 396 }
j3 17:b646b1e3970b 397 else
j3 17:b646b1e3970b 398 {
IanBenzMaxim 73:2cecc1372acc 399 bridge_result = DS28E17::CommsWriteBlockError;
j3 17:b646b1e3970b 400 }
j3 7:78a8857b3810 401 }
IanBenzMaxim 74:23be10c32fa3 402
j3 17:b646b1e3970b 403 return bridge_result;
j3 7:78a8857b3810 404 }
j3 7:78a8857b3810 405
j3 7:78a8857b3810 406
j3 7:78a8857b3810 407 //*********************************************************************
j3 107:4697f641eafb 408 DS28E17::CmdResult DS28E17::readConfigReg(uint8_t & config)
j3 7:78a8857b3810 409 {
IanBenzMaxim 73:2cecc1372acc 410 DS28E17::CmdResult bridge_result = DS28E17::OperationFailure;
IanBenzMaxim 74:23be10c32fa3 411
IanBenzMaxim 77:529edb329ee0 412 OneWireMaster::CmdResult ow_result = selectDevice();
IanBenzMaxim 74:23be10c32fa3 413
IanBenzMaxim 74:23be10c32fa3 414 if (ow_result == OneWireMaster::Success)
j3 7:78a8857b3810 415 {
j3 7:78a8857b3810 416 // Send CMD and receive Data
IanBenzMaxim 77:529edb329ee0 417 ow_result = master().OWWriteByte(ReadConfigurationCmd);
IanBenzMaxim 74:23be10c32fa3 418 if (ow_result == OneWireMaster::Success)
j3 17:b646b1e3970b 419 {
IanBenzMaxim 77:529edb329ee0 420 ow_result = master().OWReadByte(config);
IanBenzMaxim 74:23be10c32fa3 421 if (ow_result == OneWireMaster::Success)
j3 17:b646b1e3970b 422 {
IanBenzMaxim 73:2cecc1372acc 423 bridge_result = DS28E17::Success;
j3 17:b646b1e3970b 424 }
j3 17:b646b1e3970b 425 else
j3 17:b646b1e3970b 426 {
IanBenzMaxim 73:2cecc1372acc 427 bridge_result = DS28E17::CommsReadByteError;
j3 17:b646b1e3970b 428 }
j3 17:b646b1e3970b 429 }
j3 17:b646b1e3970b 430 else
j3 17:b646b1e3970b 431 {
IanBenzMaxim 73:2cecc1372acc 432 bridge_result = DS28E17::CommsWriteByteError;
j3 17:b646b1e3970b 433 }
j3 7:78a8857b3810 434 }
IanBenzMaxim 74:23be10c32fa3 435
j3 17:b646b1e3970b 436 return bridge_result;
j3 7:78a8857b3810 437 }
j3 7:78a8857b3810 438
j3 7:78a8857b3810 439
j3 7:78a8857b3810 440 //*********************************************************************
j3 107:4697f641eafb 441 DS28E17::CmdResult DS28E17::enableSleepMode()
j3 7:78a8857b3810 442 {
IanBenzMaxim 73:2cecc1372acc 443 DS28E17::CmdResult bridge_result = DS28E17::OperationFailure;
IanBenzMaxim 74:23be10c32fa3 444
IanBenzMaxim 77:529edb329ee0 445 OneWireMaster::CmdResult ow_result = selectDevice();
IanBenzMaxim 74:23be10c32fa3 446
IanBenzMaxim 74:23be10c32fa3 447 if (ow_result == OneWireMaster::Success)
j3 7:78a8857b3810 448 {
j3 7:78a8857b3810 449 // Send CMD
IanBenzMaxim 77:529edb329ee0 450 ow_result = master().OWWriteByte(EnableSleepModeCmd);
IanBenzMaxim 74:23be10c32fa3 451 if (ow_result == OneWireMaster::Success)
j3 17:b646b1e3970b 452 {
IanBenzMaxim 73:2cecc1372acc 453 bridge_result = DS28E17::Success;
j3 17:b646b1e3970b 454 }
j3 17:b646b1e3970b 455 else
j3 17:b646b1e3970b 456 {
IanBenzMaxim 73:2cecc1372acc 457 bridge_result = DS28E17::CommsWriteByteError;
j3 17:b646b1e3970b 458 }
j3 7:78a8857b3810 459 }
IanBenzMaxim 74:23be10c32fa3 460
j3 17:b646b1e3970b 461 return bridge_result;
j3 7:78a8857b3810 462 }
j3 7:78a8857b3810 463
j3 7:78a8857b3810 464
j3 7:78a8857b3810 465 //*********************************************************************
j3 107:4697f641eafb 466 DS28E17::CmdResult DS28E17::readDeviceRevision(uint8_t & rev)
j3 7:78a8857b3810 467 {
IanBenzMaxim 73:2cecc1372acc 468 DS28E17::CmdResult bridge_result = DS28E17::OperationFailure;
IanBenzMaxim 74:23be10c32fa3 469
IanBenzMaxim 77:529edb329ee0 470 OneWireMaster::CmdResult ow_result = selectDevice();
IanBenzMaxim 74:23be10c32fa3 471
IanBenzMaxim 74:23be10c32fa3 472 if (ow_result == OneWireMaster::Success)
j3 7:78a8857b3810 473 {
j3 7:78a8857b3810 474 // Send CMD and receive Data
IanBenzMaxim 77:529edb329ee0 475 ow_result = master().OWWriteByte(ReadDeviceRevisionCmd);
IanBenzMaxim 74:23be10c32fa3 476 if (ow_result == OneWireMaster::Success)
j3 17:b646b1e3970b 477 {
IanBenzMaxim 77:529edb329ee0 478 ow_result = master().OWReadByte(rev);
IanBenzMaxim 74:23be10c32fa3 479 if (ow_result == OneWireMaster::Success)
j3 17:b646b1e3970b 480 {
IanBenzMaxim 73:2cecc1372acc 481 bridge_result = DS28E17::Success;
j3 17:b646b1e3970b 482 }
j3 17:b646b1e3970b 483 else
j3 17:b646b1e3970b 484 {
IanBenzMaxim 73:2cecc1372acc 485 bridge_result = DS28E17::CommsReadByteError;
j3 17:b646b1e3970b 486 }
j3 17:b646b1e3970b 487 }
j3 17:b646b1e3970b 488 else
j3 17:b646b1e3970b 489 {
IanBenzMaxim 73:2cecc1372acc 490 bridge_result = DS28E17::CommsWriteByteError;
j3 17:b646b1e3970b 491 }
j3 7:78a8857b3810 492 }
IanBenzMaxim 74:23be10c32fa3 493
j3 17:b646b1e3970b 494 return bridge_result;
j3 7:78a8857b3810 495 }
j3 7:78a8857b3810 496
j3 7:78a8857b3810 497
j3 7:78a8857b3810 498 //*********************************************************************
j3 107:4697f641eafb 499 DS28E17::CmdResult DS28E17::sendPacket(const uint8_t * data, uint8_t data_length,
j3 17:b646b1e3970b 500 uint8_t & status, uint8_t & wr_status)
j3 17:b646b1e3970b 501 {
IanBenzMaxim 73:2cecc1372acc 502 DS28E17::CmdResult bridge_result = DS28E17::CommsWriteBlockError;
j3 17:b646b1e3970b 503 uint32_t poll_count = 0;
IanBenzMaxim 74:23be10c32fa3 504
IanBenzMaxim 77:529edb329ee0 505 OneWireMaster::CmdResult ow_result = master().OWWriteBlock(data, data_length);
IanBenzMaxim 74:23be10c32fa3 506
IanBenzMaxim 74:23be10c32fa3 507 if (ow_result == OneWireMaster::Success)
j3 17:b646b1e3970b 508 {
j3 17:b646b1e3970b 509 // Poll for Zero 1-Wire bit and return if an error occurs
j3 17:b646b1e3970b 510 uint8_t recvbit = 0x01;
IanBenzMaxim 74:23be10c32fa3 511 do
j3 17:b646b1e3970b 512 {
IanBenzMaxim 77:529edb329ee0 513 ow_result = master().OWReadBit(recvbit);
IanBenzMaxim 75:8b627804927c 514 } while (recvbit && (poll_count++ < pollLimit) && (ow_result == OneWireMaster::Success));
j3 17:b646b1e3970b 515
IanBenzMaxim 74:23be10c32fa3 516 if (ow_result == OneWireMaster::Success)
j3 17:b646b1e3970b 517 {
IanBenzMaxim 75:8b627804927c 518 if (poll_count < pollLimit)
j3 17:b646b1e3970b 519 {
j3 17:b646b1e3970b 520 //Read Status and write status
j3 17:b646b1e3970b 521 uint8_t read_block[2];
IanBenzMaxim 74:23be10c32fa3 522
IanBenzMaxim 77:529edb329ee0 523 ow_result = master().OWReadBlock(read_block, 2);
IanBenzMaxim 74:23be10c32fa3 524
IanBenzMaxim 74:23be10c32fa3 525 if (ow_result == OneWireMaster::Success)
j3 17:b646b1e3970b 526 {
j3 17:b646b1e3970b 527 status = read_block[0];
j3 17:b646b1e3970b 528 wr_status = read_block[1];
IanBenzMaxim 73:2cecc1372acc 529 bridge_result = DS28E17::Success;
IanBenzMaxim 74:23be10c32fa3 530 }
j3 17:b646b1e3970b 531 else
j3 17:b646b1e3970b 532 {
IanBenzMaxim 74:23be10c32fa3 533 bridge_result = DS28E17::CommsReadBlockError;
j3 17:b646b1e3970b 534 }
IanBenzMaxim 74:23be10c32fa3 535 }
IanBenzMaxim 74:23be10c32fa3 536 else
j3 17:b646b1e3970b 537 {
IanBenzMaxim 73:2cecc1372acc 538 bridge_result = DS28E17::TimeoutError;
j3 17:b646b1e3970b 539 }
IanBenzMaxim 74:23be10c32fa3 540 }
IanBenzMaxim 74:23be10c32fa3 541 else
j3 17:b646b1e3970b 542 {
IanBenzMaxim 73:2cecc1372acc 543 bridge_result = DS28E17::CommsReadBitError;
j3 17:b646b1e3970b 544 }
IanBenzMaxim 74:23be10c32fa3 545 }
IanBenzMaxim 74:23be10c32fa3 546
j3 17:b646b1e3970b 547 return bridge_result;
j3 17:b646b1e3970b 548 }
j3 17:b646b1e3970b 549
j3 17:b646b1e3970b 550
j3 17:b646b1e3970b 551 //*********************************************************************
j3 107:4697f641eafb 552 DS28E17::CmdResult DS28E17::sendPacket(const uint8_t * data, uint8_t data_length,
j3 17:b646b1e3970b 553 uint8_t & status)
j3 17:b646b1e3970b 554 {
IanBenzMaxim 73:2cecc1372acc 555 DS28E17::CmdResult bridge_result = DS28E17::CommsWriteBlockError;
j3 17:b646b1e3970b 556 uint32_t poll_count = 0;
IanBenzMaxim 74:23be10c32fa3 557
IanBenzMaxim 77:529edb329ee0 558 OneWireMaster::CmdResult ow_result = master().OWWriteBlock(data, data_length);
IanBenzMaxim 74:23be10c32fa3 559
IanBenzMaxim 74:23be10c32fa3 560 if (ow_result == OneWireMaster::Success)
j3 17:b646b1e3970b 561 {
j3 17:b646b1e3970b 562 // Poll for Zero 1-Wire bit and return if an error occurs
j3 17:b646b1e3970b 563 uint8_t recvbit = 0x01;
IanBenzMaxim 74:23be10c32fa3 564 do
j3 17:b646b1e3970b 565 {
IanBenzMaxim 77:529edb329ee0 566 ow_result = master().OWReadBit(recvbit);
IanBenzMaxim 75:8b627804927c 567 } while (recvbit && (poll_count++ < pollLimit) && (ow_result == OneWireMaster::Success));
j3 17:b646b1e3970b 568
IanBenzMaxim 74:23be10c32fa3 569 if (ow_result == OneWireMaster::Success)
j3 17:b646b1e3970b 570 {
IanBenzMaxim 75:8b627804927c 571 if (poll_count < pollLimit)
j3 17:b646b1e3970b 572 {
j3 17:b646b1e3970b 573 //Read Status
IanBenzMaxim 77:529edb329ee0 574 ow_result = master().OWReadByte(status);
IanBenzMaxim 74:23be10c32fa3 575 if (ow_result == OneWireMaster::Success)
j3 17:b646b1e3970b 576 {
IanBenzMaxim 73:2cecc1372acc 577 bridge_result = DS28E17::Success;
IanBenzMaxim 74:23be10c32fa3 578 }
j3 17:b646b1e3970b 579 else
j3 17:b646b1e3970b 580 {
IanBenzMaxim 73:2cecc1372acc 581 bridge_result = DS28E17::CommsReadByteError;
j3 17:b646b1e3970b 582 }
IanBenzMaxim 74:23be10c32fa3 583 }
IanBenzMaxim 74:23be10c32fa3 584 else
j3 17:b646b1e3970b 585 {
IanBenzMaxim 73:2cecc1372acc 586 bridge_result = DS28E17::TimeoutError;
j3 17:b646b1e3970b 587 }
IanBenzMaxim 74:23be10c32fa3 588 }
IanBenzMaxim 74:23be10c32fa3 589 else
j3 17:b646b1e3970b 590 {
IanBenzMaxim 73:2cecc1372acc 591 bridge_result = DS28E17::CommsReadBitError;
j3 17:b646b1e3970b 592 }
IanBenzMaxim 74:23be10c32fa3 593 }
IanBenzMaxim 74:23be10c32fa3 594
j3 17:b646b1e3970b 595 return bridge_result;
j3 17:b646b1e3970b 596 }
j3 17:b646b1e3970b 597