Implementation of 1-Wire with added Alarm Search Functionality
Dependents: Max32630_One_Wire_Interface
OneWire_Bridge/DS28E17/ds28e17.cpp@23:e8e403d61359, 2016-03-21 (annotated)
- Committer:
- j3
- Date:
- Mon Mar 21 23:18:45 2016 +0000
- Revision:
- 23:e8e403d61359
- Parent:
- 22:686273e55cdc
- Child:
- 27:d5aaefa252f1
Merged OneWireInterface into OneWireMaster for clarity
Who changed what in which revision?
User | Revision | Line number | New 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 | |
j3 | 4:ca27db159b10 | 33 | |
j3 | 7:78a8857b3810 | 34 | #include "ds28e17.h" |
j3 | 4:ca27db159b10 | 35 | |
j3 | 7:78a8857b3810 | 36 | const uint16_t Ds28e17::_oddparity[] = { 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0 }; |
j3 | 4:ca27db159b10 | 37 | |
j3 | 4:ca27db159b10 | 38 | |
j3 | 4:ca27db159b10 | 39 | //********************************************************************* |
j3 | 22:686273e55cdc | 40 | Ds28e17::Ds28e17(OneWireMaster &owm) |
j3 | 17:b646b1e3970b | 41 | :_owm(owm) |
j3 | 4:ca27db159b10 | 42 | { |
j3 | 7:78a8857b3810 | 43 | |
j3 | 4:ca27db159b10 | 44 | } |
j3 | 4:ca27db159b10 | 45 | |
j3 | 4:ca27db159b10 | 46 | |
j3 | 4:ca27db159b10 | 47 | //********************************************************************* |
j3 | 17:b646b1e3970b | 48 | void Ds28e17::set_rom_id(const RomId &romId) |
j3 | 17:b646b1e3970b | 49 | { |
j3 | 17:b646b1e3970b | 50 | _romId = romId; |
j3 | 17:b646b1e3970b | 51 | } |
j3 | 17:b646b1e3970b | 52 | |
j3 | 17:b646b1e3970b | 53 | |
j3 | 17:b646b1e3970b | 54 | //********************************************************************* |
j3 | 17:b646b1e3970b | 55 | RomId Ds28e17::get_rom_id(void) |
j3 | 17:b646b1e3970b | 56 | { |
j3 | 17:b646b1e3970b | 57 | return _romId; |
j3 | 17:b646b1e3970b | 58 | } |
j3 | 17:b646b1e3970b | 59 | |
j3 | 17:b646b1e3970b | 60 | |
j3 | 17:b646b1e3970b | 61 | //********************************************************************* |
j3 | 17:b646b1e3970b | 62 | Ds28e17::CmdResult Ds28e17::I2C_WriteDataWithStop(uint8_t I2C_addr, uint8_t length, |
j3 | 7:78a8857b3810 | 63 | uint8_t *data, uint8_t &status, |
j3 | 7:78a8857b3810 | 64 | uint8_t &wr_status) |
j3 | 4:ca27db159b10 | 65 | { |
j3 | 17:b646b1e3970b | 66 | Ds28e17::CmdResult bridge_result = Ds28e17::OperationFailure; |
j3 | 4:ca27db159b10 | 67 | |
j3 | 7:78a8857b3810 | 68 | size_t send_cnt = 0; |
j3 | 7:78a8857b3810 | 69 | uint8_t send_block[0xff]; |
j3 | 7:78a8857b3810 | 70 | |
j3 | 23:e8e403d61359 | 71 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(_romId); |
j3 | 17:b646b1e3970b | 72 | |
j3 | 23:e8e403d61359 | 73 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 74 | { |
j3 | 7:78a8857b3810 | 75 | //seed the crc |
j3 | 7:78a8857b3810 | 76 | _crc16 = 0; |
j3 | 7:78a8857b3810 | 77 | |
j3 | 7:78a8857b3810 | 78 | // Form the 1-Wire Packet |
j3 | 7:78a8857b3810 | 79 | |
j3 | 7:78a8857b3810 | 80 | // I2C Write Data with Stop command |
j3 | 7:78a8857b3810 | 81 | send_block[send_cnt] = CMD_I2C_WRITE_W_STOP; |
j3 | 7:78a8857b3810 | 82 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 83 | |
j3 | 7:78a8857b3810 | 84 | // I2C Address |
j3 | 7:78a8857b3810 | 85 | send_block[send_cnt] = I2C_addr; |
j3 | 7:78a8857b3810 | 86 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 87 | |
j3 | 7:78a8857b3810 | 88 | // Length field |
j3 | 7:78a8857b3810 | 89 | send_block[send_cnt] = length; |
j3 | 7:78a8857b3810 | 90 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 91 | |
j3 | 7:78a8857b3810 | 92 | // Form the write data |
j3 | 17:b646b1e3970b | 93 | for (size_t idx = 0; idx < length; idx++) |
j3 | 7:78a8857b3810 | 94 | { |
j3 | 7:78a8857b3810 | 95 | send_block[send_cnt] = data[idx]; |
j3 | 7:78a8857b3810 | 96 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 97 | } |
j3 | 7:78a8857b3810 | 98 | |
j3 | 7:78a8857b3810 | 99 | // Form the CRC16 |
j3 | 7:78a8857b3810 | 100 | _crc16 = _crc16^0xFFFF; |
j3 | 7:78a8857b3810 | 101 | send_block[send_cnt++] = ((uint8_t)(_crc16 & 0xFF)); |
j3 | 7:78a8857b3810 | 102 | send_block[send_cnt++] = ((uint8_t)((_crc16 >> 8) & 0xFF)); |
j3 | 7:78a8857b3810 | 103 | |
j3 | 7:78a8857b3810 | 104 | // Send Packet |
j3 | 17:b646b1e3970b | 105 | bridge_result = send_packet(send_block, send_cnt, status, wr_status); |
j3 | 7:78a8857b3810 | 106 | } |
j3 | 4:ca27db159b10 | 107 | |
j3 | 17:b646b1e3970b | 108 | return bridge_result; |
j3 | 4:ca27db159b10 | 109 | } |
j3 | 4:ca27db159b10 | 110 | |
j3 | 4:ca27db159b10 | 111 | |
j3 | 4:ca27db159b10 | 112 | //********************************************************************* |
j3 | 17:b646b1e3970b | 113 | Ds28e17::CmdResult Ds28e17::I2C_WriteDataNoStop(uint8_t I2C_addr, uint8_t length, |
j3 | 7:78a8857b3810 | 114 | uint8_t *data, uint8_t &status, |
j3 | 7:78a8857b3810 | 115 | uint8_t &wr_status) |
j3 | 4:ca27db159b10 | 116 | { |
j3 | 17:b646b1e3970b | 117 | Ds28e17::CmdResult bridge_result = Ds28e17::OperationFailure; |
j3 | 4:ca27db159b10 | 118 | |
j3 | 7:78a8857b3810 | 119 | size_t send_cnt = 0; |
j3 | 7:78a8857b3810 | 120 | uint8_t send_block[0xff]; |
j3 | 7:78a8857b3810 | 121 | |
j3 | 23:e8e403d61359 | 122 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(_romId); |
j3 | 17:b646b1e3970b | 123 | |
j3 | 23:e8e403d61359 | 124 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 125 | { |
j3 | 7:78a8857b3810 | 126 | // seed the crc |
j3 | 7:78a8857b3810 | 127 | _crc16 = 0; |
j3 | 7:78a8857b3810 | 128 | |
j3 | 7:78a8857b3810 | 129 | // I2C Write Data with Stop command |
j3 | 7:78a8857b3810 | 130 | send_block[send_cnt] = CMD_I2C_WRITE_NO_STOP; |
j3 | 7:78a8857b3810 | 131 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 132 | |
j3 | 7:78a8857b3810 | 133 | // I2C Address |
j3 | 7:78a8857b3810 | 134 | send_block[send_cnt] = I2C_addr; |
j3 | 7:78a8857b3810 | 135 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 136 | |
j3 | 7:78a8857b3810 | 137 | // Length field |
j3 | 7:78a8857b3810 | 138 | send_block[send_cnt] = length; |
j3 | 7:78a8857b3810 | 139 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 140 | |
j3 | 7:78a8857b3810 | 141 | // Form the write data |
j3 | 17:b646b1e3970b | 142 | for(size_t idx = 0; idx < length; idx++) |
j3 | 7:78a8857b3810 | 143 | { |
j3 | 7:78a8857b3810 | 144 | send_block[send_cnt] = data[idx]; |
j3 | 7:78a8857b3810 | 145 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 146 | } |
j3 | 7:78a8857b3810 | 147 | |
j3 | 7:78a8857b3810 | 148 | // Form the CRC16 |
j3 | 7:78a8857b3810 | 149 | _crc16 = _crc16^0xFFFF; |
j3 | 7:78a8857b3810 | 150 | send_block[send_cnt++] = ((uint8_t)(_crc16 & 0xFF)); |
j3 | 7:78a8857b3810 | 151 | send_block[send_cnt++] = ((uint8_t)((_crc16 >> 8) & 0xFF)); |
j3 | 7:78a8857b3810 | 152 | |
j3 | 7:78a8857b3810 | 153 | // Send Packet |
j3 | 17:b646b1e3970b | 154 | bridge_result = send_packet(send_block, send_cnt, status, wr_status); |
j3 | 7:78a8857b3810 | 155 | } |
j3 | 7:78a8857b3810 | 156 | |
j3 | 17:b646b1e3970b | 157 | return bridge_result; |
j3 | 4:ca27db159b10 | 158 | } |
j3 | 4:ca27db159b10 | 159 | |
j3 | 4:ca27db159b10 | 160 | |
j3 | 4:ca27db159b10 | 161 | //********************************************************************* |
j3 | 17:b646b1e3970b | 162 | Ds28e17::CmdResult Ds28e17::I2C_WriteDataOnly(uint8_t length, uint8_t *data, |
j3 | 7:78a8857b3810 | 163 | uint8_t &status, uint8_t &wr_status) |
j3 | 4:ca27db159b10 | 164 | { |
j3 | 17:b646b1e3970b | 165 | Ds28e17::CmdResult bridge_result = Ds28e17::OperationFailure; |
j3 | 4:ca27db159b10 | 166 | |
j3 | 7:78a8857b3810 | 167 | size_t send_cnt = 0; |
j3 | 7:78a8857b3810 | 168 | uint8_t send_block[0xff]; |
j3 | 7:78a8857b3810 | 169 | |
j3 | 23:e8e403d61359 | 170 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(_romId); |
j3 | 17:b646b1e3970b | 171 | |
j3 | 23:e8e403d61359 | 172 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 173 | { |
j3 | 7:78a8857b3810 | 174 | // seed the crc |
j3 | 7:78a8857b3810 | 175 | _crc16 = 0; |
j3 | 7:78a8857b3810 | 176 | |
j3 | 7:78a8857b3810 | 177 | // Form the 1-Wire Packet |
j3 | 7:78a8857b3810 | 178 | |
j3 | 7:78a8857b3810 | 179 | // I2C Write Data with Stop command |
j3 | 7:78a8857b3810 | 180 | send_block[send_cnt] = CMD_I2C_WRITE_ONLY; |
j3 | 7:78a8857b3810 | 181 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 182 | |
j3 | 7:78a8857b3810 | 183 | // Length field |
j3 | 7:78a8857b3810 | 184 | send_block[send_cnt] = length; |
j3 | 7:78a8857b3810 | 185 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 186 | |
j3 | 7:78a8857b3810 | 187 | // Form the write data |
j3 | 17:b646b1e3970b | 188 | for (size_t idx = 0; idx < length; idx++) |
j3 | 7:78a8857b3810 | 189 | { |
j3 | 7:78a8857b3810 | 190 | send_block[send_cnt] = data[idx]; |
j3 | 7:78a8857b3810 | 191 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 192 | } |
j3 | 7:78a8857b3810 | 193 | |
j3 | 7:78a8857b3810 | 194 | // Form the CRC16\ |
j3 | 7:78a8857b3810 | 195 | _crc16 = _crc16^0xFFFF; |
j3 | 7:78a8857b3810 | 196 | send_block[send_cnt++] = (_crc16 & 0xFF); |
j3 | 7:78a8857b3810 | 197 | send_block[send_cnt++] = ((_crc16 >> 8) & 0xFF); |
j3 | 7:78a8857b3810 | 198 | |
j3 | 7:78a8857b3810 | 199 | // Send Packet |
j3 | 17:b646b1e3970b | 200 | bridge_result = send_packet(send_block, send_cnt, status, wr_status); |
j3 | 7:78a8857b3810 | 201 | } |
j3 | 7:78a8857b3810 | 202 | |
j3 | 17:b646b1e3970b | 203 | return bridge_result; |
j3 | 4:ca27db159b10 | 204 | } |
j3 | 4:ca27db159b10 | 205 | |
j3 | 4:ca27db159b10 | 206 | |
j3 | 4:ca27db159b10 | 207 | //********************************************************************* |
j3 | 17:b646b1e3970b | 208 | Ds28e17::CmdResult Ds28e17::I2C_WriteDataOnlyWithStop(uint8_t length, uint8_t *data, |
j3 | 7:78a8857b3810 | 209 | uint8_t &status, uint8_t &wr_status) |
j3 | 4:ca27db159b10 | 210 | { |
j3 | 17:b646b1e3970b | 211 | Ds28e17::CmdResult bridge_result = Ds28e17::OperationFailure; |
j3 | 4:ca27db159b10 | 212 | |
j3 | 7:78a8857b3810 | 213 | size_t send_cnt = 0; |
j3 | 7:78a8857b3810 | 214 | uint8_t send_block[0xff]; |
j3 | 7:78a8857b3810 | 215 | |
j3 | 23:e8e403d61359 | 216 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(_romId); |
j3 | 17:b646b1e3970b | 217 | |
j3 | 23:e8e403d61359 | 218 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 219 | { |
j3 | 7:78a8857b3810 | 220 | //seed the crc |
j3 | 7:78a8857b3810 | 221 | _crc16 = 0; |
j3 | 7:78a8857b3810 | 222 | |
j3 | 7:78a8857b3810 | 223 | // Form the 1-Wire Packet |
j3 | 7:78a8857b3810 | 224 | |
j3 | 7:78a8857b3810 | 225 | // I2C Write Data with Stop command |
j3 | 7:78a8857b3810 | 226 | send_block[send_cnt] = CMD_I2C_WRITE_ONLY_W_STOP; |
j3 | 7:78a8857b3810 | 227 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 228 | |
j3 | 7:78a8857b3810 | 229 | // Length field |
j3 | 7:78a8857b3810 | 230 | send_block[send_cnt] = length; |
j3 | 7:78a8857b3810 | 231 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 232 | |
j3 | 7:78a8857b3810 | 233 | // Form the write data |
j3 | 17:b646b1e3970b | 234 | for (size_t idx = 0; idx < length; idx++) |
j3 | 7:78a8857b3810 | 235 | { |
j3 | 7:78a8857b3810 | 236 | send_block[send_cnt] = data[idx]; |
j3 | 7:78a8857b3810 | 237 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 238 | } |
j3 | 7:78a8857b3810 | 239 | |
j3 | 7:78a8857b3810 | 240 | // Form the CRC16 |
j3 | 7:78a8857b3810 | 241 | _crc16 = _crc16^0xFFFF; |
j3 | 7:78a8857b3810 | 242 | send_block[send_cnt++] = (_crc16 & 0xFF); |
j3 | 7:78a8857b3810 | 243 | send_block[send_cnt++] = ((_crc16 >> 8) & 0xFF); |
j3 | 7:78a8857b3810 | 244 | |
j3 | 7:78a8857b3810 | 245 | // Send Packet |
j3 | 17:b646b1e3970b | 246 | bridge_result = send_packet(send_block, send_cnt, status, wr_status); |
j3 | 17:b646b1e3970b | 247 | } |
j3 | 7:78a8857b3810 | 248 | |
j3 | 17:b646b1e3970b | 249 | return bridge_result; |
j3 | 4:ca27db159b10 | 250 | } |
j3 | 4:ca27db159b10 | 251 | |
j3 | 4:ca27db159b10 | 252 | |
j3 | 4:ca27db159b10 | 253 | //********************************************************************* |
j3 | 17:b646b1e3970b | 254 | Ds28e17::CmdResult Ds28e17::I2C_WriteReadDataWithStop(uint8_t I2C_addr, uint8_t length, |
j3 | 4:ca27db159b10 | 255 | uint8_t *data, uint8_t nu_bytes_read, |
j3 | 7:78a8857b3810 | 256 | uint8_t &status, uint8_t &wr_status, |
j3 | 4:ca27db159b10 | 257 | uint8_t *read_data) |
j3 | 4:ca27db159b10 | 258 | { |
j3 | 17:b646b1e3970b | 259 | Ds28e17::CmdResult bridge_result = Ds28e17::OperationFailure; |
j3 | 4:ca27db159b10 | 260 | |
j3 | 7:78a8857b3810 | 261 | size_t send_cnt = 0; |
j3 | 7:78a8857b3810 | 262 | size_t idx = 0; |
j3 | 7:78a8857b3810 | 263 | uint8_t send_block[0xff]; |
j3 | 7:78a8857b3810 | 264 | |
j3 | 23:e8e403d61359 | 265 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(_romId); |
j3 | 17:b646b1e3970b | 266 | |
j3 | 23:e8e403d61359 | 267 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 268 | { |
j3 | 7:78a8857b3810 | 269 | //seed the crc |
j3 | 7:78a8857b3810 | 270 | _crc16 = 0; |
j3 | 7:78a8857b3810 | 271 | |
j3 | 7:78a8857b3810 | 272 | // Form the 1-Wire Packet |
j3 | 7:78a8857b3810 | 273 | |
j3 | 7:78a8857b3810 | 274 | // I2C Write Data with Stop command |
j3 | 7:78a8857b3810 | 275 | send_block[send_cnt] = CMD_I2C_WRITE_READ_W_STOP; |
j3 | 7:78a8857b3810 | 276 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 277 | |
j3 | 7:78a8857b3810 | 278 | // I2C Address |
j3 | 7:78a8857b3810 | 279 | send_block[send_cnt] = I2C_addr; |
j3 | 7:78a8857b3810 | 280 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 281 | |
j3 | 7:78a8857b3810 | 282 | // Length field |
j3 | 7:78a8857b3810 | 283 | send_block[send_cnt] = length; |
j3 | 7:78a8857b3810 | 284 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 285 | |
j3 | 7:78a8857b3810 | 286 | // Form the write data |
j3 | 7:78a8857b3810 | 287 | for (idx = 0; idx < length; idx++) |
j3 | 7:78a8857b3810 | 288 | { |
j3 | 7:78a8857b3810 | 289 | send_block[send_cnt] = data[idx]; |
j3 | 7:78a8857b3810 | 290 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 291 | } |
j3 | 7:78a8857b3810 | 292 | |
j3 | 7:78a8857b3810 | 293 | // # of bytes to Read field |
j3 | 7:78a8857b3810 | 294 | send_block[send_cnt] = nu_bytes_read; |
j3 | 7:78a8857b3810 | 295 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 296 | |
j3 | 7:78a8857b3810 | 297 | // Form the CRC16 |
j3 | 7:78a8857b3810 | 298 | _crc16 = _crc16^0xFFFF; |
j3 | 7:78a8857b3810 | 299 | send_block[send_cnt++] = (_crc16 & 0xFF); |
j3 | 7:78a8857b3810 | 300 | send_block[send_cnt++] = ((_crc16 >> 8) & 0xFF); |
j3 | 7:78a8857b3810 | 301 | |
j3 | 7:78a8857b3810 | 302 | // Send Packet |
j3 | 17:b646b1e3970b | 303 | bridge_result = send_packet(send_block, send_cnt, status, wr_status); |
j3 | 17:b646b1e3970b | 304 | if(bridge_result == Ds28e17::Success) |
j3 | 7:78a8857b3810 | 305 | { |
j3 | 17:b646b1e3970b | 306 | ow_result = _owm.OWReadBlock(read_data, nu_bytes_read); |
j3 | 23:e8e403d61359 | 307 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 308 | { |
j3 | 17:b646b1e3970b | 309 | bridge_result = Ds28e17::Success; |
j3 | 7:78a8857b3810 | 310 | } |
j3 | 17:b646b1e3970b | 311 | else |
j3 | 17:b646b1e3970b | 312 | { |
j3 | 17:b646b1e3970b | 313 | bridge_result = Ds28e17::CommsReadBlockError; |
j3 | 17:b646b1e3970b | 314 | } |
j3 | 7:78a8857b3810 | 315 | } |
j3 | 7:78a8857b3810 | 316 | } |
j3 | 7:78a8857b3810 | 317 | |
j3 | 17:b646b1e3970b | 318 | return bridge_result; |
j3 | 4:ca27db159b10 | 319 | } |
j3 | 4:ca27db159b10 | 320 | |
j3 | 4:ca27db159b10 | 321 | |
j3 | 4:ca27db159b10 | 322 | //********************************************************************* |
j3 | 17:b646b1e3970b | 323 | Ds28e17::CmdResult Ds28e17::I2C_ReadDataWithStop(uint8_t I2C_addr, uint8_t nu_bytes_read, |
j3 | 7:78a8857b3810 | 324 | uint8_t &status, uint8_t *read_data) |
j3 | 4:ca27db159b10 | 325 | { |
j3 | 17:b646b1e3970b | 326 | Ds28e17::CmdResult bridge_result = Ds28e17::OperationFailure; |
j3 | 4:ca27db159b10 | 327 | |
j3 | 7:78a8857b3810 | 328 | size_t send_cnt = 0; |
j3 | 7:78a8857b3810 | 329 | uint8_t send_block[0xff]; |
j3 | 7:78a8857b3810 | 330 | |
j3 | 23:e8e403d61359 | 331 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(_romId); |
j3 | 17:b646b1e3970b | 332 | |
j3 | 23:e8e403d61359 | 333 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 334 | { |
j3 | 7:78a8857b3810 | 335 | //seed the crc for transmit bytes |
j3 | 7:78a8857b3810 | 336 | _crc16 = 0; |
j3 | 7:78a8857b3810 | 337 | |
j3 | 7:78a8857b3810 | 338 | // Form the 1-Wire Packet to send |
j3 | 7:78a8857b3810 | 339 | |
j3 | 7:78a8857b3810 | 340 | // I2C Write Data with Stop command |
j3 | 7:78a8857b3810 | 341 | send_block[send_cnt] = CMD_I2C_READ_W_STOP; |
j3 | 7:78a8857b3810 | 342 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 343 | |
j3 | 7:78a8857b3810 | 344 | // I2C Address |
j3 | 7:78a8857b3810 | 345 | send_block[send_cnt] = I2C_addr; |
j3 | 7:78a8857b3810 | 346 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 347 | |
j3 | 7:78a8857b3810 | 348 | // # of bytes to Read field |
j3 | 7:78a8857b3810 | 349 | send_block[send_cnt] = nu_bytes_read; |
j3 | 7:78a8857b3810 | 350 | docrc16(send_block[send_cnt++]); |
j3 | 7:78a8857b3810 | 351 | |
j3 | 7:78a8857b3810 | 352 | // Form the CRC16 |
j3 | 7:78a8857b3810 | 353 | _crc16 = _crc16^0xFFFF; |
j3 | 7:78a8857b3810 | 354 | send_block[send_cnt++] = (_crc16 & 0xFF); |
j3 | 7:78a8857b3810 | 355 | send_block[send_cnt++] = ((_crc16 >> 8) & 0xFF); |
j3 | 7:78a8857b3810 | 356 | |
j3 | 7:78a8857b3810 | 357 | // Send Packet |
j3 | 17:b646b1e3970b | 358 | bridge_result = send_packet(send_block, send_cnt, status); |
j3 | 17:b646b1e3970b | 359 | if(bridge_result == Ds28e17::Success) |
j3 | 7:78a8857b3810 | 360 | { |
j3 | 17:b646b1e3970b | 361 | ow_result = _owm.OWReadBlock(read_data, nu_bytes_read); |
j3 | 23:e8e403d61359 | 362 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 363 | { |
j3 | 17:b646b1e3970b | 364 | bridge_result = Ds28e17::Success; |
j3 | 7:78a8857b3810 | 365 | } |
j3 | 17:b646b1e3970b | 366 | else |
j3 | 17:b646b1e3970b | 367 | { |
j3 | 17:b646b1e3970b | 368 | bridge_result = Ds28e17::CommsReadBlockError; |
j3 | 17:b646b1e3970b | 369 | } |
j3 | 7:78a8857b3810 | 370 | } |
j3 | 7:78a8857b3810 | 371 | } |
j3 | 7:78a8857b3810 | 372 | |
j3 | 17:b646b1e3970b | 373 | return bridge_result; |
j3 | 4:ca27db159b10 | 374 | } |
j3 | 4:ca27db159b10 | 375 | |
j3 | 4:ca27db159b10 | 376 | |
j3 | 4:ca27db159b10 | 377 | //********************************************************************* |
j3 | 17:b646b1e3970b | 378 | Ds28e17::CmdResult Ds28e17::WriteConfigReg(uint8_t data) |
j3 | 7:78a8857b3810 | 379 | { |
j3 | 17:b646b1e3970b | 380 | Ds28e17::CmdResult bridge_result = Ds28e17::OperationFailure; |
j3 | 7:78a8857b3810 | 381 | |
j3 | 23:e8e403d61359 | 382 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(_romId); |
j3 | 17:b646b1e3970b | 383 | |
j3 | 23:e8e403d61359 | 384 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 385 | { |
j3 | 7:78a8857b3810 | 386 | // Send CMD and Data |
j3 | 17:b646b1e3970b | 387 | uint8_t send_block[] = {CMD_WRITE_CONFIG_REG, data}; |
j3 | 17:b646b1e3970b | 388 | |
j3 | 17:b646b1e3970b | 389 | ow_result = _owm.OWWriteBlock(send_block, 2); |
j3 | 23:e8e403d61359 | 390 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 391 | { |
j3 | 17:b646b1e3970b | 392 | _i2c_speed = data & 0x03; // Save off _i2c_speed setting to be used by other functions |
j3 | 17:b646b1e3970b | 393 | bridge_result = Ds28e17::Success; |
j3 | 17:b646b1e3970b | 394 | } |
j3 | 17:b646b1e3970b | 395 | else |
j3 | 17:b646b1e3970b | 396 | { |
j3 | 17:b646b1e3970b | 397 | bridge_result = Ds28e17::CommsWriteBlockError; |
j3 | 17:b646b1e3970b | 398 | } |
j3 | 7:78a8857b3810 | 399 | } |
j3 | 7:78a8857b3810 | 400 | |
j3 | 17:b646b1e3970b | 401 | return bridge_result; |
j3 | 7:78a8857b3810 | 402 | } |
j3 | 7:78a8857b3810 | 403 | |
j3 | 7:78a8857b3810 | 404 | |
j3 | 7:78a8857b3810 | 405 | //********************************************************************* |
j3 | 17:b646b1e3970b | 406 | Ds28e17::CmdResult Ds28e17::ReadConfigReg(uint8_t & config) |
j3 | 7:78a8857b3810 | 407 | { |
j3 | 17:b646b1e3970b | 408 | Ds28e17::CmdResult bridge_result = Ds28e17::OperationFailure; |
j3 | 7:78a8857b3810 | 409 | |
j3 | 23:e8e403d61359 | 410 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(_romId); |
j3 | 17:b646b1e3970b | 411 | |
j3 | 23:e8e403d61359 | 412 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 413 | { |
j3 | 7:78a8857b3810 | 414 | // Send CMD and receive Data |
j3 | 17:b646b1e3970b | 415 | ow_result = _owm.OWWriteByte(CMD_READ_CONFIG_REG); |
j3 | 23:e8e403d61359 | 416 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 417 | { |
j3 | 17:b646b1e3970b | 418 | ow_result = _owm.OWReadByte(config); |
j3 | 23:e8e403d61359 | 419 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 420 | { |
j3 | 17:b646b1e3970b | 421 | bridge_result = Ds28e17::Success; |
j3 | 17:b646b1e3970b | 422 | } |
j3 | 17:b646b1e3970b | 423 | else |
j3 | 17:b646b1e3970b | 424 | { |
j3 | 17:b646b1e3970b | 425 | bridge_result = Ds28e17::CommsReadByteError; |
j3 | 17:b646b1e3970b | 426 | } |
j3 | 17:b646b1e3970b | 427 | } |
j3 | 17:b646b1e3970b | 428 | else |
j3 | 17:b646b1e3970b | 429 | { |
j3 | 17:b646b1e3970b | 430 | bridge_result = Ds28e17::CommsWriteByteError; |
j3 | 17:b646b1e3970b | 431 | } |
j3 | 7:78a8857b3810 | 432 | } |
j3 | 7:78a8857b3810 | 433 | |
j3 | 17:b646b1e3970b | 434 | return bridge_result; |
j3 | 7:78a8857b3810 | 435 | } |
j3 | 7:78a8857b3810 | 436 | |
j3 | 7:78a8857b3810 | 437 | |
j3 | 7:78a8857b3810 | 438 | //********************************************************************* |
j3 | 17:b646b1e3970b | 439 | Ds28e17::CmdResult Ds28e17::DisableOWMode() |
j3 | 7:78a8857b3810 | 440 | { |
j3 | 17:b646b1e3970b | 441 | Ds28e17::CmdResult bridge_result = Ds28e17::OperationFailure; |
j3 | 7:78a8857b3810 | 442 | |
j3 | 23:e8e403d61359 | 443 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(_romId); |
j3 | 17:b646b1e3970b | 444 | |
j3 | 23:e8e403d61359 | 445 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 446 | { |
j3 | 7:78a8857b3810 | 447 | // Send CMD |
j3 | 17:b646b1e3970b | 448 | ow_result = _owm.OWWriteByte(CMD_DISABLE_OW_MODE); |
j3 | 23:e8e403d61359 | 449 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 450 | { |
j3 | 17:b646b1e3970b | 451 | bridge_result = Ds28e17::Success; |
j3 | 17:b646b1e3970b | 452 | } |
j3 | 17:b646b1e3970b | 453 | else |
j3 | 17:b646b1e3970b | 454 | { |
j3 | 17:b646b1e3970b | 455 | bridge_result = Ds28e17::CommsWriteByteError; |
j3 | 17:b646b1e3970b | 456 | } |
j3 | 7:78a8857b3810 | 457 | } |
j3 | 7:78a8857b3810 | 458 | |
j3 | 17:b646b1e3970b | 459 | return bridge_result; |
j3 | 7:78a8857b3810 | 460 | } |
j3 | 7:78a8857b3810 | 461 | |
j3 | 7:78a8857b3810 | 462 | |
j3 | 7:78a8857b3810 | 463 | //********************************************************************* |
j3 | 17:b646b1e3970b | 464 | Ds28e17::CmdResult Ds28e17::EnableSleepMode() |
j3 | 7:78a8857b3810 | 465 | { |
j3 | 17:b646b1e3970b | 466 | Ds28e17::CmdResult bridge_result = Ds28e17::OperationFailure; |
j3 | 7:78a8857b3810 | 467 | |
j3 | 23:e8e403d61359 | 468 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(_romId); |
j3 | 17:b646b1e3970b | 469 | |
j3 | 23:e8e403d61359 | 470 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 471 | { |
j3 | 7:78a8857b3810 | 472 | // Send CMD |
j3 | 17:b646b1e3970b | 473 | ow_result = _owm.OWWriteByte(CMD_ENABLE_SLEEP_MODE); |
j3 | 23:e8e403d61359 | 474 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 475 | { |
j3 | 17:b646b1e3970b | 476 | bridge_result = Ds28e17::Success; |
j3 | 17:b646b1e3970b | 477 | } |
j3 | 17:b646b1e3970b | 478 | else |
j3 | 17:b646b1e3970b | 479 | { |
j3 | 17:b646b1e3970b | 480 | bridge_result = Ds28e17::CommsWriteByteError; |
j3 | 17:b646b1e3970b | 481 | } |
j3 | 7:78a8857b3810 | 482 | } |
j3 | 7:78a8857b3810 | 483 | |
j3 | 17:b646b1e3970b | 484 | return bridge_result; |
j3 | 7:78a8857b3810 | 485 | } |
j3 | 7:78a8857b3810 | 486 | |
j3 | 7:78a8857b3810 | 487 | |
j3 | 7:78a8857b3810 | 488 | //********************************************************************* |
j3 | 17:b646b1e3970b | 489 | Ds28e17::CmdResult Ds28e17::ReadDeviceRevision(uint8_t & rev) |
j3 | 7:78a8857b3810 | 490 | { |
j3 | 17:b646b1e3970b | 491 | Ds28e17::CmdResult bridge_result = Ds28e17::OperationFailure; |
j3 | 7:78a8857b3810 | 492 | |
j3 | 23:e8e403d61359 | 493 | OneWireMaster::CmdResult ow_result = _owm.OWMatchROM(_romId); |
j3 | 17:b646b1e3970b | 494 | |
j3 | 23:e8e403d61359 | 495 | if(ow_result == OneWireMaster::Success) |
j3 | 7:78a8857b3810 | 496 | { |
j3 | 7:78a8857b3810 | 497 | // Send CMD and receive Data |
j3 | 17:b646b1e3970b | 498 | ow_result = _owm.OWWriteByte(CMD_READ_DEVICE_REV); |
j3 | 23:e8e403d61359 | 499 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 500 | { |
j3 | 17:b646b1e3970b | 501 | ow_result = _owm.OWReadByte(rev); |
j3 | 23:e8e403d61359 | 502 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 503 | { |
j3 | 17:b646b1e3970b | 504 | bridge_result = Ds28e17::Success; |
j3 | 17:b646b1e3970b | 505 | } |
j3 | 17:b646b1e3970b | 506 | else |
j3 | 17:b646b1e3970b | 507 | { |
j3 | 17:b646b1e3970b | 508 | bridge_result = Ds28e17::CommsReadByteError; |
j3 | 17:b646b1e3970b | 509 | } |
j3 | 17:b646b1e3970b | 510 | } |
j3 | 17:b646b1e3970b | 511 | else |
j3 | 17:b646b1e3970b | 512 | { |
j3 | 17:b646b1e3970b | 513 | bridge_result = Ds28e17::CommsWriteByteError; |
j3 | 17:b646b1e3970b | 514 | } |
j3 | 7:78a8857b3810 | 515 | } |
j3 | 7:78a8857b3810 | 516 | |
j3 | 17:b646b1e3970b | 517 | return bridge_result; |
j3 | 7:78a8857b3810 | 518 | } |
j3 | 7:78a8857b3810 | 519 | |
j3 | 7:78a8857b3810 | 520 | |
j3 | 7:78a8857b3810 | 521 | //********************************************************************* |
j3 | 7:78a8857b3810 | 522 | uint16_t Ds28e17::docrc16(uint16_t data) |
j3 | 7:78a8857b3810 | 523 | { |
j3 | 7:78a8857b3810 | 524 | data = ((data ^ (_crc16 & 0xff)) & 0xff); |
j3 | 7:78a8857b3810 | 525 | _crc16 >>= 8; |
j3 | 7:78a8857b3810 | 526 | |
j3 | 7:78a8857b3810 | 527 | if (Ds28e17::_oddparity[data & 0xf] ^ Ds28e17::_oddparity[data >> 4]) |
j3 | 7:78a8857b3810 | 528 | { |
j3 | 7:78a8857b3810 | 529 | _crc16 ^= 0xc001; |
j3 | 7:78a8857b3810 | 530 | } |
j3 | 7:78a8857b3810 | 531 | |
j3 | 7:78a8857b3810 | 532 | data <<= 6; |
j3 | 7:78a8857b3810 | 533 | _crc16 ^= data; |
j3 | 7:78a8857b3810 | 534 | data <<= 1; |
j3 | 7:78a8857b3810 | 535 | _crc16 ^= data; |
j3 | 7:78a8857b3810 | 536 | |
j3 | 7:78a8857b3810 | 537 | return _crc16; |
j3 | 7:78a8857b3810 | 538 | } |
j3 | 7:78a8857b3810 | 539 | |
j3 | 7:78a8857b3810 | 540 | |
j3 | 17:b646b1e3970b | 541 | //********************************************************************* |
j3 | 17:b646b1e3970b | 542 | Ds28e17::CmdResult Ds28e17::send_packet(const uint8_t * data, uint8_t data_length, |
j3 | 17:b646b1e3970b | 543 | uint8_t & status, uint8_t & wr_status) |
j3 | 17:b646b1e3970b | 544 | { |
j3 | 17:b646b1e3970b | 545 | Ds28e17::CmdResult bridge_result = Ds28e17::CommsWriteBlockError; |
j3 | 17:b646b1e3970b | 546 | uint32_t poll_count = 0; |
j3 | 17:b646b1e3970b | 547 | |
j3 | 23:e8e403d61359 | 548 | OneWireMaster::CmdResult ow_result = _owm.OWWriteBlock(data, data_length); |
j3 | 17:b646b1e3970b | 549 | |
j3 | 23:e8e403d61359 | 550 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 551 | { |
j3 | 17:b646b1e3970b | 552 | // Poll for Zero 1-Wire bit and return if an error occurs |
j3 | 17:b646b1e3970b | 553 | uint8_t recvbit = 0x01; |
j3 | 17:b646b1e3970b | 554 | do |
j3 | 17:b646b1e3970b | 555 | { |
j3 | 17:b646b1e3970b | 556 | ow_result = _owm.OWReadBit(recvbit); |
j3 | 17:b646b1e3970b | 557 | } |
j3 | 23:e8e403d61359 | 558 | while(recvbit && (poll_count++ < POLL_LIMIT) && (ow_result == OneWireMaster::Success)); |
j3 | 17:b646b1e3970b | 559 | |
j3 | 23:e8e403d61359 | 560 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 561 | { |
j3 | 17:b646b1e3970b | 562 | if(poll_count < POLL_LIMIT) |
j3 | 17:b646b1e3970b | 563 | { |
j3 | 17:b646b1e3970b | 564 | //Read Status and write status |
j3 | 17:b646b1e3970b | 565 | uint8_t read_block[2]; |
j3 | 17:b646b1e3970b | 566 | |
j3 | 17:b646b1e3970b | 567 | ow_result = _owm.OWReadBlock(read_block, 2); |
j3 | 17:b646b1e3970b | 568 | |
j3 | 23:e8e403d61359 | 569 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 570 | { |
j3 | 17:b646b1e3970b | 571 | status = read_block[0]; |
j3 | 17:b646b1e3970b | 572 | wr_status = read_block[1]; |
j3 | 17:b646b1e3970b | 573 | bridge_result = Ds28e17::Success; |
j3 | 17:b646b1e3970b | 574 | } |
j3 | 17:b646b1e3970b | 575 | else |
j3 | 17:b646b1e3970b | 576 | { |
j3 | 17:b646b1e3970b | 577 | bridge_result = Ds28e17::CommsReadBlockError; |
j3 | 17:b646b1e3970b | 578 | } |
j3 | 17:b646b1e3970b | 579 | } |
j3 | 17:b646b1e3970b | 580 | else |
j3 | 17:b646b1e3970b | 581 | { |
j3 | 17:b646b1e3970b | 582 | bridge_result = Ds28e17::TimeoutError; |
j3 | 17:b646b1e3970b | 583 | } |
j3 | 17:b646b1e3970b | 584 | } |
j3 | 17:b646b1e3970b | 585 | else |
j3 | 17:b646b1e3970b | 586 | { |
j3 | 17:b646b1e3970b | 587 | bridge_result = Ds28e17::CommsReadBitError; |
j3 | 17:b646b1e3970b | 588 | } |
j3 | 17:b646b1e3970b | 589 | } |
j3 | 17:b646b1e3970b | 590 | |
j3 | 17:b646b1e3970b | 591 | return bridge_result; |
j3 | 17:b646b1e3970b | 592 | } |
j3 | 17:b646b1e3970b | 593 | |
j3 | 17:b646b1e3970b | 594 | |
j3 | 17:b646b1e3970b | 595 | //********************************************************************* |
j3 | 17:b646b1e3970b | 596 | Ds28e17::CmdResult Ds28e17::send_packet(const uint8_t * data, uint8_t data_length, |
j3 | 17:b646b1e3970b | 597 | uint8_t & status) |
j3 | 17:b646b1e3970b | 598 | { |
j3 | 17:b646b1e3970b | 599 | Ds28e17::CmdResult bridge_result = Ds28e17::CommsWriteBlockError; |
j3 | 17:b646b1e3970b | 600 | uint32_t poll_count = 0; |
j3 | 17:b646b1e3970b | 601 | |
j3 | 23:e8e403d61359 | 602 | OneWireMaster::CmdResult ow_result = _owm.OWWriteBlock(data, data_length); |
j3 | 17:b646b1e3970b | 603 | |
j3 | 23:e8e403d61359 | 604 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 605 | { |
j3 | 17:b646b1e3970b | 606 | // Poll for Zero 1-Wire bit and return if an error occurs |
j3 | 17:b646b1e3970b | 607 | uint8_t recvbit = 0x01; |
j3 | 17:b646b1e3970b | 608 | do |
j3 | 17:b646b1e3970b | 609 | { |
j3 | 17:b646b1e3970b | 610 | ow_result = _owm.OWReadBit(recvbit); |
j3 | 17:b646b1e3970b | 611 | } |
j3 | 23:e8e403d61359 | 612 | while(recvbit && (poll_count++ < POLL_LIMIT) && (ow_result == OneWireMaster::Success)); |
j3 | 17:b646b1e3970b | 613 | |
j3 | 23:e8e403d61359 | 614 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 615 | { |
j3 | 17:b646b1e3970b | 616 | if(poll_count < POLL_LIMIT) |
j3 | 17:b646b1e3970b | 617 | { |
j3 | 17:b646b1e3970b | 618 | //Read Status |
j3 | 17:b646b1e3970b | 619 | ow_result = _owm.OWReadByte(status); |
j3 | 23:e8e403d61359 | 620 | if(ow_result == OneWireMaster::Success) |
j3 | 17:b646b1e3970b | 621 | { |
j3 | 17:b646b1e3970b | 622 | bridge_result = Ds28e17::Success; |
j3 | 17:b646b1e3970b | 623 | } |
j3 | 17:b646b1e3970b | 624 | else |
j3 | 17:b646b1e3970b | 625 | { |
j3 | 17:b646b1e3970b | 626 | bridge_result = Ds28e17::CommsReadByteError; |
j3 | 17:b646b1e3970b | 627 | } |
j3 | 17:b646b1e3970b | 628 | } |
j3 | 17:b646b1e3970b | 629 | else |
j3 | 17:b646b1e3970b | 630 | { |
j3 | 17:b646b1e3970b | 631 | bridge_result = Ds28e17::TimeoutError; |
j3 | 17:b646b1e3970b | 632 | } |
j3 | 17:b646b1e3970b | 633 | } |
j3 | 17:b646b1e3970b | 634 | else |
j3 | 17:b646b1e3970b | 635 | { |
j3 | 17:b646b1e3970b | 636 | bridge_result = Ds28e17::CommsReadBitError; |
j3 | 17:b646b1e3970b | 637 | } |
j3 | 17:b646b1e3970b | 638 | } |
j3 | 17:b646b1e3970b | 639 | |
j3 | 17:b646b1e3970b | 640 | return bridge_result; |
j3 | 17:b646b1e3970b | 641 | } |
j3 | 17:b646b1e3970b | 642 |