Implementation of 1-Wire with added Alarm Search Functionality
Dependents: Max32630_One_Wire_Interface
Bridge/DS28E17/DS28E17.cpp@73:2cecc1372acc, 2016-05-12 (annotated)
- Committer:
- IanBenzMaxim
- Date:
- Thu May 12 14:38:16 2016 -0500
- Revision:
- 73:2cecc1372acc
- Parent:
- OneWire_Bridge/DS28E17/ds28e17.cpp@27:d5aaefa252f1
- Child:
- 74:23be10c32fa3
Added namespaces. Renamed files and directories for consistency. Use <stdint.h> instead of <cstdint> since it is not supported by C++98.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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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 "DS28E17.h" |
IanBenzMaxim | 73:2cecc1372acc | 34 | #include "Masters/OneWireMaster.h" |
j3 | 4:ca27db159b10 | 35 | |
IanBenzMaxim | 73:2cecc1372acc | 36 | using OneWire::Bridge::DS28E17; |
IanBenzMaxim | 73:2cecc1372acc | 37 | using OneWire::Masters::OneWireMaster; |
j3 | 4:ca27db159b10 | 38 | |
IanBenzMaxim | 73:2cecc1372acc | 39 | const uint16_t DS28E17::_oddparity[] = { 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0 }; |
j3 | 4:ca27db159b10 | 40 | |
j3 | 4:ca27db159b10 | 41 | |
j3 | 4:ca27db159b10 | 42 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 43 | DS28E17::DS28E17(OneWireMaster &owm) |
IanBenzMaxim | 73:2cecc1372acc | 44 | : _owm(owm) |
j3 | 4:ca27db159b10 | 45 | { |
j3 | 7:78a8857b3810 | 46 | |
j3 | 4:ca27db159b10 | 47 | } |
j3 | 4:ca27db159b10 | 48 | |
j3 | 4:ca27db159b10 | 49 | |
j3 | 4:ca27db159b10 | 50 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 51 | DS28E17::CmdResult DS28E17::I2C_WriteDataWithStop(uint8_t I2C_addr, uint8_t length, |
j3 | 7:78a8857b3810 | 52 | uint8_t *data, uint8_t &status, |
j3 | 7:78a8857b3810 | 53 | uint8_t &wr_status) |
j3 | 4:ca27db159b10 | 54 | { |
IanBenzMaxim | 73:2cecc1372acc | 55 | DS28E17::CmdResult bridge_result = DS28E17::OperationFailure; |
j3 | 4:ca27db159b10 | 56 | |
j3 | 7:78a8857b3810 | 57 | size_t send_cnt = 0; |
j3 | 7:78a8857b3810 | 58 | uint8_t send_block[0xff]; |
j3 | 7:78a8857b3810 | 59 | |
IanBenzMaxim | 73:2cecc1372acc | 60 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(romId); |
j3 | 17:b646b1e3970b | 61 | |
j3 | 23:e8e403d61359 | 62 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 63 | { |
j3 | 7:78a8857b3810 | 64 | //seed the crc |
j3 | 7:78a8857b3810 | 65 | _crc16 = 0; |
j3 | 7:78a8857b3810 | 66 | |
j3 | 7:78a8857b3810 | 67 | // Form the 1-Wire Packet |
j3 | 7:78a8857b3810 | 68 | |
j3 | 7:78a8857b3810 | 69 | // I2C Write Data with Stop command |
j3 | 7:78a8857b3810 | 70 | send_block[send_cnt] = CMD_I2C_WRITE_W_STOP; |
j3 | 7:78a8857b3810 | 71 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 72 | |
j3 | 7:78a8857b3810 | 73 | // I2C Address |
j3 | 7:78a8857b3810 | 74 | send_block[send_cnt] = I2C_addr; |
j3 | 7:78a8857b3810 | 75 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 76 | |
j3 | 7:78a8857b3810 | 77 | // Length field |
j3 | 7:78a8857b3810 | 78 | send_block[send_cnt] = length; |
j3 | 7:78a8857b3810 | 79 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 80 | |
j3 | 7:78a8857b3810 | 81 | // Form the write data |
j3 | 17:b646b1e3970b | 82 | for (size_t idx = 0; idx < length; idx++) |
j3 | 7:78a8857b3810 | 83 | { |
j3 | 7:78a8857b3810 | 84 | send_block[send_cnt] = data[idx]; |
j3 | 7:78a8857b3810 | 85 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 86 | } |
j3 | 7:78a8857b3810 | 87 | |
j3 | 7:78a8857b3810 | 88 | // Form the CRC16 |
j3 | 7:78a8857b3810 | 89 | _crc16 = _crc16^0xFFFF; |
j3 | 7:78a8857b3810 | 90 | send_block[send_cnt++] = ((uint8_t)(_crc16 & 0xFF)); |
j3 | 7:78a8857b3810 | 91 | send_block[send_cnt++] = ((uint8_t)((_crc16 >> 8) & 0xFF)); |
j3 | 7:78a8857b3810 | 92 | |
j3 | 7:78a8857b3810 | 93 | // Send Packet |
j3 | 17:b646b1e3970b | 94 | bridge_result = send_packet(send_block, send_cnt, status, wr_status); |
j3 | 7:78a8857b3810 | 95 | } |
j3 | 4:ca27db159b10 | 96 | |
j3 | 17:b646b1e3970b | 97 | return bridge_result; |
j3 | 4:ca27db159b10 | 98 | } |
j3 | 4:ca27db159b10 | 99 | |
j3 | 4:ca27db159b10 | 100 | |
j3 | 4:ca27db159b10 | 101 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 102 | DS28E17::CmdResult DS28E17::I2C_WriteDataNoStop(uint8_t I2C_addr, uint8_t length, |
j3 | 7:78a8857b3810 | 103 | uint8_t *data, uint8_t &status, |
j3 | 7:78a8857b3810 | 104 | uint8_t &wr_status) |
j3 | 4:ca27db159b10 | 105 | { |
IanBenzMaxim | 73:2cecc1372acc | 106 | DS28E17::CmdResult bridge_result = DS28E17::OperationFailure; |
j3 | 4:ca27db159b10 | 107 | |
j3 | 7:78a8857b3810 | 108 | size_t send_cnt = 0; |
j3 | 7:78a8857b3810 | 109 | uint8_t send_block[0xff]; |
j3 | 7:78a8857b3810 | 110 | |
IanBenzMaxim | 73:2cecc1372acc | 111 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(romId); |
j3 | 17:b646b1e3970b | 112 | |
j3 | 23:e8e403d61359 | 113 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 114 | { |
j3 | 7:78a8857b3810 | 115 | // seed the crc |
j3 | 7:78a8857b3810 | 116 | _crc16 = 0; |
j3 | 7:78a8857b3810 | 117 | |
j3 | 7:78a8857b3810 | 118 | // I2C Write Data with Stop command |
j3 | 7:78a8857b3810 | 119 | send_block[send_cnt] = CMD_I2C_WRITE_NO_STOP; |
j3 | 7:78a8857b3810 | 120 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 121 | |
j3 | 7:78a8857b3810 | 122 | // I2C Address |
j3 | 7:78a8857b3810 | 123 | send_block[send_cnt] = I2C_addr; |
j3 | 7:78a8857b3810 | 124 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 125 | |
j3 | 7:78a8857b3810 | 126 | // Length field |
j3 | 7:78a8857b3810 | 127 | send_block[send_cnt] = length; |
j3 | 7:78a8857b3810 | 128 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 129 | |
j3 | 7:78a8857b3810 | 130 | // Form the write data |
j3 | 17:b646b1e3970b | 131 | for(size_t idx = 0; idx < length; idx++) |
j3 | 7:78a8857b3810 | 132 | { |
j3 | 7:78a8857b3810 | 133 | send_block[send_cnt] = data[idx]; |
j3 | 7:78a8857b3810 | 134 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 135 | } |
j3 | 7:78a8857b3810 | 136 | |
j3 | 7:78a8857b3810 | 137 | // Form the CRC16 |
j3 | 7:78a8857b3810 | 138 | _crc16 = _crc16^0xFFFF; |
j3 | 7:78a8857b3810 | 139 | send_block[send_cnt++] = ((uint8_t)(_crc16 & 0xFF)); |
j3 | 7:78a8857b3810 | 140 | send_block[send_cnt++] = ((uint8_t)((_crc16 >> 8) & 0xFF)); |
j3 | 7:78a8857b3810 | 141 | |
j3 | 7:78a8857b3810 | 142 | // Send Packet |
j3 | 17:b646b1e3970b | 143 | bridge_result = send_packet(send_block, send_cnt, status, wr_status); |
j3 | 7:78a8857b3810 | 144 | } |
j3 | 7:78a8857b3810 | 145 | |
j3 | 17:b646b1e3970b | 146 | return bridge_result; |
j3 | 4:ca27db159b10 | 147 | } |
j3 | 4:ca27db159b10 | 148 | |
j3 | 4:ca27db159b10 | 149 | |
j3 | 4:ca27db159b10 | 150 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 151 | DS28E17::CmdResult DS28E17::I2C_WriteDataOnly(uint8_t length, uint8_t *data, |
j3 | 7:78a8857b3810 | 152 | uint8_t &status, uint8_t &wr_status) |
j3 | 4:ca27db159b10 | 153 | { |
IanBenzMaxim | 73:2cecc1372acc | 154 | DS28E17::CmdResult bridge_result = DS28E17::OperationFailure; |
j3 | 4:ca27db159b10 | 155 | |
j3 | 7:78a8857b3810 | 156 | size_t send_cnt = 0; |
j3 | 7:78a8857b3810 | 157 | uint8_t send_block[0xff]; |
j3 | 7:78a8857b3810 | 158 | |
IanBenzMaxim | 73:2cecc1372acc | 159 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(romId); |
j3 | 17:b646b1e3970b | 160 | |
j3 | 23:e8e403d61359 | 161 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 162 | { |
j3 | 7:78a8857b3810 | 163 | // seed the crc |
j3 | 7:78a8857b3810 | 164 | _crc16 = 0; |
j3 | 7:78a8857b3810 | 165 | |
j3 | 7:78a8857b3810 | 166 | // Form the 1-Wire Packet |
j3 | 7:78a8857b3810 | 167 | |
j3 | 7:78a8857b3810 | 168 | // I2C Write Data with Stop command |
j3 | 7:78a8857b3810 | 169 | send_block[send_cnt] = CMD_I2C_WRITE_ONLY; |
j3 | 7:78a8857b3810 | 170 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 171 | |
j3 | 7:78a8857b3810 | 172 | // Length field |
j3 | 7:78a8857b3810 | 173 | send_block[send_cnt] = length; |
j3 | 7:78a8857b3810 | 174 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 175 | |
j3 | 7:78a8857b3810 | 176 | // Form the write data |
j3 | 17:b646b1e3970b | 177 | for (size_t idx = 0; idx < length; idx++) |
j3 | 7:78a8857b3810 | 178 | { |
j3 | 7:78a8857b3810 | 179 | send_block[send_cnt] = data[idx]; |
j3 | 7:78a8857b3810 | 180 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 181 | } |
j3 | 7:78a8857b3810 | 182 | |
j3 | 7:78a8857b3810 | 183 | // Form the CRC16\ |
j3 | 7:78a8857b3810 | 184 | _crc16 = _crc16^0xFFFF; |
j3 | 7:78a8857b3810 | 185 | send_block[send_cnt++] = (_crc16 & 0xFF); |
j3 | 7:78a8857b3810 | 186 | send_block[send_cnt++] = ((_crc16 >> 8) & 0xFF); |
j3 | 7:78a8857b3810 | 187 | |
j3 | 7:78a8857b3810 | 188 | // Send Packet |
j3 | 17:b646b1e3970b | 189 | bridge_result = send_packet(send_block, send_cnt, status, wr_status); |
j3 | 7:78a8857b3810 | 190 | } |
j3 | 7:78a8857b3810 | 191 | |
j3 | 17:b646b1e3970b | 192 | return bridge_result; |
j3 | 4:ca27db159b10 | 193 | } |
j3 | 4:ca27db159b10 | 194 | |
j3 | 4:ca27db159b10 | 195 | |
j3 | 4:ca27db159b10 | 196 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 197 | DS28E17::CmdResult DS28E17::I2C_WriteDataOnlyWithStop(uint8_t length, uint8_t *data, |
j3 | 7:78a8857b3810 | 198 | uint8_t &status, uint8_t &wr_status) |
j3 | 4:ca27db159b10 | 199 | { |
IanBenzMaxim | 73:2cecc1372acc | 200 | DS28E17::CmdResult bridge_result = DS28E17::OperationFailure; |
j3 | 4:ca27db159b10 | 201 | |
j3 | 7:78a8857b3810 | 202 | size_t send_cnt = 0; |
j3 | 7:78a8857b3810 | 203 | uint8_t send_block[0xff]; |
j3 | 7:78a8857b3810 | 204 | |
IanBenzMaxim | 73:2cecc1372acc | 205 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(romId); |
j3 | 17:b646b1e3970b | 206 | |
j3 | 23:e8e403d61359 | 207 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 208 | { |
j3 | 7:78a8857b3810 | 209 | //seed the crc |
j3 | 7:78a8857b3810 | 210 | _crc16 = 0; |
j3 | 7:78a8857b3810 | 211 | |
j3 | 7:78a8857b3810 | 212 | // Form the 1-Wire Packet |
j3 | 7:78a8857b3810 | 213 | |
j3 | 7:78a8857b3810 | 214 | // I2C Write Data with Stop command |
j3 | 7:78a8857b3810 | 215 | send_block[send_cnt] = CMD_I2C_WRITE_ONLY_W_STOP; |
j3 | 7:78a8857b3810 | 216 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 217 | |
j3 | 7:78a8857b3810 | 218 | // Length field |
j3 | 7:78a8857b3810 | 219 | send_block[send_cnt] = length; |
j3 | 7:78a8857b3810 | 220 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 221 | |
j3 | 7:78a8857b3810 | 222 | // Form the write data |
j3 | 17:b646b1e3970b | 223 | for (size_t idx = 0; idx < length; idx++) |
j3 | 7:78a8857b3810 | 224 | { |
j3 | 7:78a8857b3810 | 225 | send_block[send_cnt] = data[idx]; |
j3 | 7:78a8857b3810 | 226 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 227 | } |
j3 | 7:78a8857b3810 | 228 | |
j3 | 7:78a8857b3810 | 229 | // Form the CRC16 |
j3 | 7:78a8857b3810 | 230 | _crc16 = _crc16^0xFFFF; |
j3 | 7:78a8857b3810 | 231 | send_block[send_cnt++] = (_crc16 & 0xFF); |
j3 | 7:78a8857b3810 | 232 | send_block[send_cnt++] = ((_crc16 >> 8) & 0xFF); |
j3 | 7:78a8857b3810 | 233 | |
j3 | 7:78a8857b3810 | 234 | // Send Packet |
j3 | 17:b646b1e3970b | 235 | bridge_result = send_packet(send_block, send_cnt, status, wr_status); |
j3 | 17:b646b1e3970b | 236 | } |
j3 | 7:78a8857b3810 | 237 | |
j3 | 17:b646b1e3970b | 238 | return bridge_result; |
j3 | 4:ca27db159b10 | 239 | } |
j3 | 4:ca27db159b10 | 240 | |
j3 | 4:ca27db159b10 | 241 | |
j3 | 4:ca27db159b10 | 242 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 243 | DS28E17::CmdResult DS28E17::I2C_WriteReadDataWithStop(uint8_t I2C_addr, uint8_t length, |
j3 | 4:ca27db159b10 | 244 | uint8_t *data, uint8_t nu_bytes_read, |
j3 | 7:78a8857b3810 | 245 | uint8_t &status, uint8_t &wr_status, |
j3 | 4:ca27db159b10 | 246 | uint8_t *read_data) |
j3 | 4:ca27db159b10 | 247 | { |
IanBenzMaxim | 73:2cecc1372acc | 248 | DS28E17::CmdResult bridge_result = DS28E17::OperationFailure; |
j3 | 4:ca27db159b10 | 249 | |
j3 | 7:78a8857b3810 | 250 | size_t send_cnt = 0; |
j3 | 7:78a8857b3810 | 251 | size_t idx = 0; |
j3 | 7:78a8857b3810 | 252 | uint8_t send_block[0xff]; |
j3 | 7:78a8857b3810 | 253 | |
IanBenzMaxim | 73:2cecc1372acc | 254 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(romId); |
j3 | 17:b646b1e3970b | 255 | |
j3 | 23:e8e403d61359 | 256 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 257 | { |
j3 | 7:78a8857b3810 | 258 | //seed the crc |
j3 | 7:78a8857b3810 | 259 | _crc16 = 0; |
j3 | 7:78a8857b3810 | 260 | |
j3 | 7:78a8857b3810 | 261 | // Form the 1-Wire Packet |
j3 | 7:78a8857b3810 | 262 | |
j3 | 7:78a8857b3810 | 263 | // I2C Write Data with Stop command |
j3 | 7:78a8857b3810 | 264 | send_block[send_cnt] = CMD_I2C_WRITE_READ_W_STOP; |
j3 | 7:78a8857b3810 | 265 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 266 | |
j3 | 7:78a8857b3810 | 267 | // I2C Address |
j3 | 7:78a8857b3810 | 268 | send_block[send_cnt] = I2C_addr; |
j3 | 7:78a8857b3810 | 269 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 270 | |
j3 | 7:78a8857b3810 | 271 | // Length field |
j3 | 7:78a8857b3810 | 272 | send_block[send_cnt] = length; |
j3 | 7:78a8857b3810 | 273 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 274 | |
j3 | 7:78a8857b3810 | 275 | // Form the write data |
j3 | 7:78a8857b3810 | 276 | for (idx = 0; idx < length; idx++) |
j3 | 7:78a8857b3810 | 277 | { |
j3 | 7:78a8857b3810 | 278 | send_block[send_cnt] = data[idx]; |
j3 | 7:78a8857b3810 | 279 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 280 | } |
j3 | 7:78a8857b3810 | 281 | |
j3 | 7:78a8857b3810 | 282 | // # of bytes to Read field |
j3 | 7:78a8857b3810 | 283 | send_block[send_cnt] = nu_bytes_read; |
j3 | 7:78a8857b3810 | 284 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 285 | |
j3 | 7:78a8857b3810 | 286 | // Form the CRC16 |
j3 | 7:78a8857b3810 | 287 | _crc16 = _crc16^0xFFFF; |
j3 | 7:78a8857b3810 | 288 | send_block[send_cnt++] = (_crc16 & 0xFF); |
j3 | 7:78a8857b3810 | 289 | send_block[send_cnt++] = ((_crc16 >> 8) & 0xFF); |
j3 | 7:78a8857b3810 | 290 | |
j3 | 7:78a8857b3810 | 291 | // Send Packet |
j3 | 17:b646b1e3970b | 292 | bridge_result = send_packet(send_block, send_cnt, status, wr_status); |
IanBenzMaxim | 73:2cecc1372acc | 293 | if(bridge_result == DS28E17::Success) |
j3 | 7:78a8857b3810 | 294 | { |
j3 | 17:b646b1e3970b | 295 | ow_result = _owm.OWReadBlock(read_data, nu_bytes_read); |
j3 | 23:e8e403d61359 | 296 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 297 | { |
IanBenzMaxim | 73:2cecc1372acc | 298 | bridge_result = DS28E17::Success; |
j3 | 7:78a8857b3810 | 299 | } |
j3 | 17:b646b1e3970b | 300 | else |
j3 | 17:b646b1e3970b | 301 | { |
IanBenzMaxim | 73:2cecc1372acc | 302 | bridge_result = DS28E17::CommsReadBlockError; |
j3 | 17:b646b1e3970b | 303 | } |
j3 | 7:78a8857b3810 | 304 | } |
j3 | 7:78a8857b3810 | 305 | } |
j3 | 7:78a8857b3810 | 306 | |
j3 | 17:b646b1e3970b | 307 | return bridge_result; |
j3 | 4:ca27db159b10 | 308 | } |
j3 | 4:ca27db159b10 | 309 | |
j3 | 4:ca27db159b10 | 310 | |
j3 | 4:ca27db159b10 | 311 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 312 | DS28E17::CmdResult DS28E17::I2C_ReadDataWithStop(uint8_t I2C_addr, uint8_t nu_bytes_read, |
j3 | 7:78a8857b3810 | 313 | uint8_t &status, uint8_t *read_data) |
j3 | 4:ca27db159b10 | 314 | { |
IanBenzMaxim | 73:2cecc1372acc | 315 | DS28E17::CmdResult bridge_result = DS28E17::OperationFailure; |
j3 | 4:ca27db159b10 | 316 | |
j3 | 7:78a8857b3810 | 317 | size_t send_cnt = 0; |
j3 | 7:78a8857b3810 | 318 | uint8_t send_block[0xff]; |
j3 | 7:78a8857b3810 | 319 | |
IanBenzMaxim | 73:2cecc1372acc | 320 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(romId); |
j3 | 17:b646b1e3970b | 321 | |
j3 | 23:e8e403d61359 | 322 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 323 | { |
j3 | 7:78a8857b3810 | 324 | //seed the crc for transmit bytes |
j3 | 7:78a8857b3810 | 325 | _crc16 = 0; |
j3 | 7:78a8857b3810 | 326 | |
j3 | 7:78a8857b3810 | 327 | // Form the 1-Wire Packet to send |
j3 | 7:78a8857b3810 | 328 | |
j3 | 7:78a8857b3810 | 329 | // I2C Write Data with Stop command |
j3 | 7:78a8857b3810 | 330 | send_block[send_cnt] = CMD_I2C_READ_W_STOP; |
j3 | 7:78a8857b3810 | 331 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 332 | |
j3 | 7:78a8857b3810 | 333 | // I2C Address |
j3 | 7:78a8857b3810 | 334 | send_block[send_cnt] = I2C_addr; |
j3 | 7:78a8857b3810 | 335 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 336 | |
j3 | 7:78a8857b3810 | 337 | // # of bytes to Read field |
j3 | 7:78a8857b3810 | 338 | send_block[send_cnt] = nu_bytes_read; |
j3 | 7:78a8857b3810 | 339 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 340 | |
j3 | 7:78a8857b3810 | 341 | // Form the CRC16 |
j3 | 7:78a8857b3810 | 342 | _crc16 = _crc16^0xFFFF; |
j3 | 7:78a8857b3810 | 343 | send_block[send_cnt++] = (_crc16 & 0xFF); |
j3 | 7:78a8857b3810 | 344 | send_block[send_cnt++] = ((_crc16 >> 8) & 0xFF); |
j3 | 7:78a8857b3810 | 345 | |
j3 | 7:78a8857b3810 | 346 | // Send Packet |
j3 | 17:b646b1e3970b | 347 | bridge_result = send_packet(send_block, send_cnt, status); |
IanBenzMaxim | 73:2cecc1372acc | 348 | if(bridge_result == DS28E17::Success) |
j3 | 7:78a8857b3810 | 349 | { |
j3 | 17:b646b1e3970b | 350 | ow_result = _owm.OWReadBlock(read_data, nu_bytes_read); |
j3 | 23:e8e403d61359 | 351 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 352 | { |
IanBenzMaxim | 73:2cecc1372acc | 353 | bridge_result = DS28E17::Success; |
j3 | 7:78a8857b3810 | 354 | } |
j3 | 17:b646b1e3970b | 355 | else |
j3 | 17:b646b1e3970b | 356 | { |
IanBenzMaxim | 73:2cecc1372acc | 357 | bridge_result = DS28E17::CommsReadBlockError; |
j3 | 17:b646b1e3970b | 358 | } |
j3 | 7:78a8857b3810 | 359 | } |
j3 | 7:78a8857b3810 | 360 | } |
j3 | 7:78a8857b3810 | 361 | |
j3 | 17:b646b1e3970b | 362 | return bridge_result; |
j3 | 4:ca27db159b10 | 363 | } |
j3 | 4:ca27db159b10 | 364 | |
j3 | 4:ca27db159b10 | 365 | |
j3 | 4:ca27db159b10 | 366 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 367 | DS28E17::CmdResult DS28E17::WriteConfigReg(uint8_t data) |
j3 | 7:78a8857b3810 | 368 | { |
IanBenzMaxim | 73:2cecc1372acc | 369 | DS28E17::CmdResult bridge_result = DS28E17::OperationFailure; |
j3 | 7:78a8857b3810 | 370 | |
IanBenzMaxim | 73:2cecc1372acc | 371 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(romId); |
j3 | 17:b646b1e3970b | 372 | |
j3 | 23:e8e403d61359 | 373 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 374 | { |
j3 | 7:78a8857b3810 | 375 | // Send CMD and Data |
j3 | 17:b646b1e3970b | 376 | uint8_t send_block[] = {CMD_WRITE_CONFIG_REG, data}; |
j3 | 17:b646b1e3970b | 377 | |
j3 | 17:b646b1e3970b | 378 | ow_result = _owm.OWWriteBlock(send_block, 2); |
j3 | 23:e8e403d61359 | 379 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 380 | { |
j3 | 17:b646b1e3970b | 381 | _i2c_speed = data & 0x03; // Save off _i2c_speed setting to be used by other functions |
IanBenzMaxim | 73:2cecc1372acc | 382 | bridge_result = DS28E17::Success; |
j3 | 17:b646b1e3970b | 383 | } |
j3 | 17:b646b1e3970b | 384 | else |
j3 | 17:b646b1e3970b | 385 | { |
IanBenzMaxim | 73:2cecc1372acc | 386 | bridge_result = DS28E17::CommsWriteBlockError; |
j3 | 17:b646b1e3970b | 387 | } |
j3 | 7:78a8857b3810 | 388 | } |
j3 | 7:78a8857b3810 | 389 | |
j3 | 17:b646b1e3970b | 390 | return bridge_result; |
j3 | 7:78a8857b3810 | 391 | } |
j3 | 7:78a8857b3810 | 392 | |
j3 | 7:78a8857b3810 | 393 | |
j3 | 7:78a8857b3810 | 394 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 395 | DS28E17::CmdResult DS28E17::ReadConfigReg(uint8_t & config) |
j3 | 7:78a8857b3810 | 396 | { |
IanBenzMaxim | 73:2cecc1372acc | 397 | DS28E17::CmdResult bridge_result = DS28E17::OperationFailure; |
j3 | 7:78a8857b3810 | 398 | |
IanBenzMaxim | 73:2cecc1372acc | 399 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(romId); |
j3 | 17:b646b1e3970b | 400 | |
j3 | 23:e8e403d61359 | 401 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 402 | { |
j3 | 7:78a8857b3810 | 403 | // Send CMD and receive Data |
j3 | 17:b646b1e3970b | 404 | ow_result = _owm.OWWriteByte(CMD_READ_CONFIG_REG); |
j3 | 23:e8e403d61359 | 405 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 406 | { |
j3 | 17:b646b1e3970b | 407 | ow_result = _owm.OWReadByte(config); |
j3 | 23:e8e403d61359 | 408 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 409 | { |
IanBenzMaxim | 73:2cecc1372acc | 410 | bridge_result = DS28E17::Success; |
j3 | 17:b646b1e3970b | 411 | } |
j3 | 17:b646b1e3970b | 412 | else |
j3 | 17:b646b1e3970b | 413 | { |
IanBenzMaxim | 73:2cecc1372acc | 414 | bridge_result = DS28E17::CommsReadByteError; |
j3 | 17:b646b1e3970b | 415 | } |
j3 | 17:b646b1e3970b | 416 | } |
j3 | 17:b646b1e3970b | 417 | else |
j3 | 17:b646b1e3970b | 418 | { |
IanBenzMaxim | 73:2cecc1372acc | 419 | bridge_result = DS28E17::CommsWriteByteError; |
j3 | 17:b646b1e3970b | 420 | } |
j3 | 7:78a8857b3810 | 421 | } |
j3 | 7:78a8857b3810 | 422 | |
j3 | 17:b646b1e3970b | 423 | return bridge_result; |
j3 | 7:78a8857b3810 | 424 | } |
j3 | 7:78a8857b3810 | 425 | |
j3 | 7:78a8857b3810 | 426 | |
j3 | 7:78a8857b3810 | 427 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 428 | DS28E17::CmdResult DS28E17::DisableOWMode() |
j3 | 7:78a8857b3810 | 429 | { |
IanBenzMaxim | 73:2cecc1372acc | 430 | DS28E17::CmdResult bridge_result = DS28E17::OperationFailure; |
j3 | 7:78a8857b3810 | 431 | |
IanBenzMaxim | 73:2cecc1372acc | 432 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(romId); |
j3 | 17:b646b1e3970b | 433 | |
j3 | 23:e8e403d61359 | 434 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 435 | { |
j3 | 7:78a8857b3810 | 436 | // Send CMD |
j3 | 17:b646b1e3970b | 437 | ow_result = _owm.OWWriteByte(CMD_DISABLE_OW_MODE); |
j3 | 23:e8e403d61359 | 438 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 439 | { |
IanBenzMaxim | 73:2cecc1372acc | 440 | bridge_result = DS28E17::Success; |
j3 | 17:b646b1e3970b | 441 | } |
j3 | 17:b646b1e3970b | 442 | else |
j3 | 17:b646b1e3970b | 443 | { |
IanBenzMaxim | 73:2cecc1372acc | 444 | bridge_result = DS28E17::CommsWriteByteError; |
j3 | 17:b646b1e3970b | 445 | } |
j3 | 7:78a8857b3810 | 446 | } |
j3 | 7:78a8857b3810 | 447 | |
j3 | 17:b646b1e3970b | 448 | return bridge_result; |
j3 | 7:78a8857b3810 | 449 | } |
j3 | 7:78a8857b3810 | 450 | |
j3 | 7:78a8857b3810 | 451 | |
j3 | 7:78a8857b3810 | 452 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 453 | DS28E17::CmdResult DS28E17::EnableSleepMode() |
j3 | 7:78a8857b3810 | 454 | { |
IanBenzMaxim | 73:2cecc1372acc | 455 | DS28E17::CmdResult bridge_result = DS28E17::OperationFailure; |
j3 | 7:78a8857b3810 | 456 | |
IanBenzMaxim | 73:2cecc1372acc | 457 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(romId); |
j3 | 17:b646b1e3970b | 458 | |
j3 | 23:e8e403d61359 | 459 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 460 | { |
j3 | 7:78a8857b3810 | 461 | // Send CMD |
j3 | 17:b646b1e3970b | 462 | ow_result = _owm.OWWriteByte(CMD_ENABLE_SLEEP_MODE); |
j3 | 23:e8e403d61359 | 463 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 464 | { |
IanBenzMaxim | 73:2cecc1372acc | 465 | bridge_result = DS28E17::Success; |
j3 | 17:b646b1e3970b | 466 | } |
j3 | 17:b646b1e3970b | 467 | else |
j3 | 17:b646b1e3970b | 468 | { |
IanBenzMaxim | 73:2cecc1372acc | 469 | bridge_result = DS28E17::CommsWriteByteError; |
j3 | 17:b646b1e3970b | 470 | } |
j3 | 7:78a8857b3810 | 471 | } |
j3 | 7:78a8857b3810 | 472 | |
j3 | 17:b646b1e3970b | 473 | return bridge_result; |
j3 | 7:78a8857b3810 | 474 | } |
j3 | 7:78a8857b3810 | 475 | |
j3 | 7:78a8857b3810 | 476 | |
j3 | 7:78a8857b3810 | 477 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 478 | DS28E17::CmdResult DS28E17::ReadDeviceRevision(uint8_t & rev) |
j3 | 7:78a8857b3810 | 479 | { |
IanBenzMaxim | 73:2cecc1372acc | 480 | DS28E17::CmdResult bridge_result = DS28E17::OperationFailure; |
j3 | 7:78a8857b3810 | 481 | |
IanBenzMaxim | 73:2cecc1372acc | 482 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(romId); |
j3 | 17:b646b1e3970b | 483 | |
j3 | 23:e8e403d61359 | 484 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 485 | { |
j3 | 7:78a8857b3810 | 486 | // Send CMD and receive Data |
j3 | 17:b646b1e3970b | 487 | ow_result = _owm.OWWriteByte(CMD_READ_DEVICE_REV); |
j3 | 23:e8e403d61359 | 488 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 489 | { |
j3 | 17:b646b1e3970b | 490 | ow_result = _owm.OWReadByte(rev); |
j3 | 23:e8e403d61359 | 491 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 492 | { |
IanBenzMaxim | 73:2cecc1372acc | 493 | bridge_result = DS28E17::Success; |
j3 | 17:b646b1e3970b | 494 | } |
j3 | 17:b646b1e3970b | 495 | else |
j3 | 17:b646b1e3970b | 496 | { |
IanBenzMaxim | 73:2cecc1372acc | 497 | bridge_result = DS28E17::CommsReadByteError; |
j3 | 17:b646b1e3970b | 498 | } |
j3 | 17:b646b1e3970b | 499 | } |
j3 | 17:b646b1e3970b | 500 | else |
j3 | 17:b646b1e3970b | 501 | { |
IanBenzMaxim | 73:2cecc1372acc | 502 | bridge_result = DS28E17::CommsWriteByteError; |
j3 | 17:b646b1e3970b | 503 | } |
j3 | 7:78a8857b3810 | 504 | } |
j3 | 7:78a8857b3810 | 505 | |
j3 | 17:b646b1e3970b | 506 | return bridge_result; |
j3 | 7:78a8857b3810 | 507 | } |
j3 | 7:78a8857b3810 | 508 | |
j3 | 7:78a8857b3810 | 509 | |
j3 | 7:78a8857b3810 | 510 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 511 | uint16_t DS28E17::docrc16(uint16_t data) |
j3 | 7:78a8857b3810 | 512 | { |
j3 | 7:78a8857b3810 | 513 | data = ((data ^ (_crc16 & 0xff)) & 0xff); |
j3 | 7:78a8857b3810 | 514 | _crc16 >>= 8; |
j3 | 7:78a8857b3810 | 515 | |
IanBenzMaxim | 73:2cecc1372acc | 516 | if (DS28E17::_oddparity[data & 0xf] ^ DS28E17::_oddparity[data >> 4]) |
j3 | 7:78a8857b3810 | 517 | { |
j3 | 7:78a8857b3810 | 518 | _crc16 ^= 0xc001; |
j3 | 7:78a8857b3810 | 519 | } |
j3 | 7:78a8857b3810 | 520 | |
j3 | 7:78a8857b3810 | 521 | data <<= 6; |
j3 | 7:78a8857b3810 | 522 | _crc16 ^= data; |
j3 | 7:78a8857b3810 | 523 | data <<= 1; |
j3 | 7:78a8857b3810 | 524 | _crc16 ^= data; |
j3 | 7:78a8857b3810 | 525 | |
j3 | 7:78a8857b3810 | 526 | return _crc16; |
j3 | 7:78a8857b3810 | 527 | } |
j3 | 7:78a8857b3810 | 528 | |
j3 | 7:78a8857b3810 | 529 | |
j3 | 17:b646b1e3970b | 530 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 531 | DS28E17::CmdResult DS28E17::send_packet(const uint8_t * data, uint8_t data_length, |
j3 | 17:b646b1e3970b | 532 | uint8_t & status, uint8_t & wr_status) |
j3 | 17:b646b1e3970b | 533 | { |
IanBenzMaxim | 73:2cecc1372acc | 534 | DS28E17::CmdResult bridge_result = DS28E17::CommsWriteBlockError; |
j3 | 17:b646b1e3970b | 535 | uint32_t poll_count = 0; |
j3 | 17:b646b1e3970b | 536 | |
j3 | 23:e8e403d61359 | 537 | OneWireMaster::CmdResult ow_result = _owm.OWWriteBlock(data, data_length); |
j3 | 17:b646b1e3970b | 538 | |
j3 | 23:e8e403d61359 | 539 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 540 | { |
j3 | 17:b646b1e3970b | 541 | // Poll for Zero 1-Wire bit and return if an error occurs |
j3 | 17:b646b1e3970b | 542 | uint8_t recvbit = 0x01; |
j3 | 17:b646b1e3970b | 543 | do |
j3 | 17:b646b1e3970b | 544 | { |
j3 | 17:b646b1e3970b | 545 | ow_result = _owm.OWReadBit(recvbit); |
j3 | 17:b646b1e3970b | 546 | } |
j3 | 23:e8e403d61359 | 547 | while(recvbit && (poll_count++ < POLL_LIMIT) && (ow_result == OneWireMaster::Success)); |
j3 | 17:b646b1e3970b | 548 | |
j3 | 23:e8e403d61359 | 549 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 550 | { |
j3 | 17:b646b1e3970b | 551 | if(poll_count < POLL_LIMIT) |
j3 | 17:b646b1e3970b | 552 | { |
j3 | 17:b646b1e3970b | 553 | //Read Status and write status |
j3 | 17:b646b1e3970b | 554 | uint8_t read_block[2]; |
j3 | 17:b646b1e3970b | 555 | |
j3 | 17:b646b1e3970b | 556 | ow_result = _owm.OWReadBlock(read_block, 2); |
j3 | 17:b646b1e3970b | 557 | |
j3 | 23:e8e403d61359 | 558 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 559 | { |
j3 | 17:b646b1e3970b | 560 | status = read_block[0]; |
j3 | 17:b646b1e3970b | 561 | wr_status = read_block[1]; |
IanBenzMaxim | 73:2cecc1372acc | 562 | bridge_result = DS28E17::Success; |
j3 | 17:b646b1e3970b | 563 | } |
j3 | 17:b646b1e3970b | 564 | else |
j3 | 17:b646b1e3970b | 565 | { |
IanBenzMaxim | 73:2cecc1372acc | 566 | bridge_result = DS28E17::CommsReadBlockError; |
j3 | 17:b646b1e3970b | 567 | } |
j3 | 17:b646b1e3970b | 568 | } |
j3 | 17:b646b1e3970b | 569 | else |
j3 | 17:b646b1e3970b | 570 | { |
IanBenzMaxim | 73:2cecc1372acc | 571 | bridge_result = DS28E17::TimeoutError; |
j3 | 17:b646b1e3970b | 572 | } |
j3 | 17:b646b1e3970b | 573 | } |
j3 | 17:b646b1e3970b | 574 | else |
j3 | 17:b646b1e3970b | 575 | { |
IanBenzMaxim | 73:2cecc1372acc | 576 | bridge_result = DS28E17::CommsReadBitError; |
j3 | 17:b646b1e3970b | 577 | } |
j3 | 17:b646b1e3970b | 578 | } |
j3 | 17:b646b1e3970b | 579 | |
j3 | 17:b646b1e3970b | 580 | return bridge_result; |
j3 | 17:b646b1e3970b | 581 | } |
j3 | 17:b646b1e3970b | 582 | |
j3 | 17:b646b1e3970b | 583 | |
j3 | 17:b646b1e3970b | 584 | //********************************************************************* |
IanBenzMaxim | 73:2cecc1372acc | 585 | DS28E17::CmdResult DS28E17::send_packet(const uint8_t * data, uint8_t data_length, |
j3 | 17:b646b1e3970b | 586 | uint8_t & status) |
j3 | 17:b646b1e3970b | 587 | { |
IanBenzMaxim | 73:2cecc1372acc | 588 | DS28E17::CmdResult bridge_result = DS28E17::CommsWriteBlockError; |
j3 | 17:b646b1e3970b | 589 | uint32_t poll_count = 0; |
j3 | 17:b646b1e3970b | 590 | |
j3 | 23:e8e403d61359 | 591 | OneWireMaster::CmdResult ow_result = _owm.OWWriteBlock(data, data_length); |
j3 | 17:b646b1e3970b | 592 | |
j3 | 23:e8e403d61359 | 593 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 594 | { |
j3 | 17:b646b1e3970b | 595 | // Poll for Zero 1-Wire bit and return if an error occurs |
j3 | 17:b646b1e3970b | 596 | uint8_t recvbit = 0x01; |
j3 | 17:b646b1e3970b | 597 | do |
j3 | 17:b646b1e3970b | 598 | { |
j3 | 17:b646b1e3970b | 599 | ow_result = _owm.OWReadBit(recvbit); |
j3 | 17:b646b1e3970b | 600 | } |
j3 | 23:e8e403d61359 | 601 | while(recvbit && (poll_count++ < POLL_LIMIT) && (ow_result == OneWireMaster::Success)); |
j3 | 17:b646b1e3970b | 602 | |
j3 | 23:e8e403d61359 | 603 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 604 | { |
j3 | 17:b646b1e3970b | 605 | if(poll_count < POLL_LIMIT) |
j3 | 17:b646b1e3970b | 606 | { |
j3 | 17:b646b1e3970b | 607 | //Read Status |
j3 | 17:b646b1e3970b | 608 | ow_result = _owm.OWReadByte(status); |
j3 | 23:e8e403d61359 | 609 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 610 | { |
IanBenzMaxim | 73:2cecc1372acc | 611 | bridge_result = DS28E17::Success; |
j3 | 17:b646b1e3970b | 612 | } |
j3 | 17:b646b1e3970b | 613 | else |
j3 | 17:b646b1e3970b | 614 | { |
IanBenzMaxim | 73:2cecc1372acc | 615 | bridge_result = DS28E17::CommsReadByteError; |
j3 | 17:b646b1e3970b | 616 | } |
j3 | 17:b646b1e3970b | 617 | } |
j3 | 17:b646b1e3970b | 618 | else |
j3 | 17:b646b1e3970b | 619 | { |
IanBenzMaxim | 73:2cecc1372acc | 620 | bridge_result = DS28E17::TimeoutError; |
j3 | 17:b646b1e3970b | 621 | } |
j3 | 17:b646b1e3970b | 622 | } |
j3 | 17:b646b1e3970b | 623 | else |
j3 | 17:b646b1e3970b | 624 | { |
IanBenzMaxim | 73:2cecc1372acc | 625 | bridge_result = DS28E17::CommsReadBitError; |
j3 | 17:b646b1e3970b | 626 | } |
j3 | 17:b646b1e3970b | 627 | } |
j3 | 17:b646b1e3970b | 628 | |
j3 | 17:b646b1e3970b | 629 | return bridge_result; |
j3 | 17:b646b1e3970b | 630 | } |
j3 | 17:b646b1e3970b | 631 |