Mike Fruge / OneWire

Implementation of 1-Wire with added Alarm Search Functionality

Dependents:   Max32630_One_Wire_Interface

OneWire_Bridge/DS28E17/ds28e17.h@17:b646b1e3970b, 2016-03-18 (annotated)

Committer:
j3
Date:
Fri Mar 18 20:21:05 2016 +0000
Revision:
17:b646b1e3970b
Parent:
13:d1bdb03703de
Child:
21:00c94aeb533e
Updated library with error codes on return statements

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
j3 4:ca27db159b10 33
j3 4:ca27db159b10 34 #ifndef DS28E17_H
j3 4:ca27db159b10 35 #define DS28E17_H
j3 4:ca27db159b10 36
j3 4:ca27db159b10 37
j3 4:ca27db159b10 38 #include "mbed.h"
j3 4:ca27db159b10 39 #include "OneWireMasters.h"
j3 4:ca27db159b10 40
j3 4:ca27db159b10 41
j3 4:ca27db159b10 42 class Ds28e17
j3 4:ca27db159b10 43 {
j3 4:ca27db159b10 44 public:
j3 4:ca27db159b10 45
j3 7:78a8857b3810 46 enum DS28E17_CMDS
j3 7:78a8857b3810 47 {
j3 7:78a8857b3810 48 CMD_I2C_WRITE_W_STOP = 0x4B,
j3 7:78a8857b3810 49 CMD_I2C_WRITE_NO_STOP = 0x5A,
j3 7:78a8857b3810 50 CMD_I2C_WRITE_ONLY = 0x69,
j3 7:78a8857b3810 51 CMD_I2C_WRITE_ONLY_W_STOP = 0x78,
j3 7:78a8857b3810 52 CMD_I2C_READ_W_STOP = 0x87,
j3 7:78a8857b3810 53 CMD_I2C_WRITE_READ_W_STOP = 0x2D,
j3 7:78a8857b3810 54 CMD_WRITE_CONFIG_REG = 0xD2,
j3 7:78a8857b3810 55 CMD_READ_CONFIG_REG = 0xE1,
j3 7:78a8857b3810 56 CMD_DISABLE_OW_MODE = 0x96,
j3 7:78a8857b3810 57 CMD_ENABLE_SLEEP_MODE = 0x1E,
j3 7:78a8857b3810 58 CMD_READ_DEVICE_REV = 0xC3
j3 7:78a8857b3810 59 };
j3 7:78a8857b3810 60
j3 17:b646b1e3970b 61 enum CmdResult
j3 17:b646b1e3970b 62 {
j3 17:b646b1e3970b 63 Success,
j3 17:b646b1e3970b 64 CommsReadBitError,
j3 17:b646b1e3970b 65 CommsWriteBitError,
j3 17:b646b1e3970b 66 CommsReadByteError,
j3 17:b646b1e3970b 67 CommsWriteByteError,
j3 17:b646b1e3970b 68 CommsReadBlockError,
j3 17:b646b1e3970b 69 CommsWriteBlockError,
j3 17:b646b1e3970b 70 TimeoutError,
j3 17:b646b1e3970b 71 OperationFailure
j3 17:b646b1e3970b 72 };
j3 17:b646b1e3970b 73
j3 7:78a8857b3810 74 static const size_t POLL_LIMIT = 10000;
j3 7:78a8857b3810 75
j3 4:ca27db159b10 76 /**********************************************************//**
j3 4:ca27db159b10 77 * @brief Ds28e17 constructor
j3 4:ca27db159b10 78 *
j3 4:ca27db159b10 79 * @details
j3 4:ca27db159b10 80 *
j3 4:ca27db159b10 81 * On Entry:
j3 4:ca27db159b10 82 * @param[in] p_owm - pointer to a 1-wire master of the following
j3 4:ca27db159b10 83 * types; Ds248x, Ds2480b, OwGpio which
j3 4:ca27db159b10 84 * inherit the base class 'OneWireInterface'
j3 4:ca27db159b10 85 *
j3 4:ca27db159b10 86 * On Exit:
j3 4:ca27db159b10 87 * @return
j3 4:ca27db159b10 88 **************************************************************/
j3 7:78a8857b3810 89 Ds28e17(OneWireInterface &owm);
j3 4:ca27db159b10 90
j3 17:b646b1e3970b 91 /**********************************************************//**
j3 17:b646b1e3970b 92 * @brief
j3 17:b646b1e3970b 93 *
j3 17:b646b1e3970b 94 * @details
j3 17:b646b1e3970b 95 *
j3 17:b646b1e3970b 96 * On Entry:
j3 17:b646b1e3970b 97 * @param[in] romId - reference to RomId type
j3 17:b646b1e3970b 98 *
j3 17:b646b1e3970b 99 * On Exit:
j3 17:b646b1e3970b 100 *
j3 17:b646b1e3970b 101 * @return
j3 17:b646b1e3970b 102 **************************************************************/
j3 17:b646b1e3970b 103 void set_rom_id(const RomId & romId);
j3 17:b646b1e3970b 104
j3 17:b646b1e3970b 105 /**********************************************************//**
j3 17:b646b1e3970b 106 * @brief
j3 17:b646b1e3970b 107 *
j3 17:b646b1e3970b 108 * @details
j3 17:b646b1e3970b 109 *
j3 17:b646b1e3970b 110 * On Entry:
j3 17:b646b1e3970b 111 *
j3 17:b646b1e3970b 112 * On Exit:
j3 17:b646b1e3970b 113 *
j3 17:b646b1e3970b 114 * @return current RomId held by this object
j3 17:b646b1e3970b 115 **************************************************************/
j3 17:b646b1e3970b 116 RomId get_rom_id(void);
j3 4:ca27db159b10 117
j3 4:ca27db159b10 118 /**********************************************************//**
j3 4:ca27db159b10 119 * @brief Write to selected DS28E17's I2C with Stop.
j3 4:ca27db159b10 120 * Poll until I2C write complete and receive status info.
j3 4:ca27db159b10 121 *
j3 4:ca27db159b10 122 * @details Output on I2C: S, Address + Write, Write Data [1-255], P
j3 4:ca27db159b10 123 *
j3 4:ca27db159b10 124 * On Entry:
j3 4:ca27db159b10 125 * @param[in] I2C_addr -
j3 4:ca27db159b10 126 * Writes I2C address. The least significant bit of the I2C
j3 4:ca27db159b10 127 * address is automatically cleared by the command.
j3 4:ca27db159b10 128 *
j3 4:ca27db159b10 129 * @param[in] length
j3 4:ca27db159b10 130 * The number of data bytes to be written ranging from 01h to FFh.
j3 4:ca27db159b10 131 * A value of zero will assert the Error Detected pin (ED).
j3 4:ca27db159b10 132 *
j3 4:ca27db159b10 133 * @param[in] *data
j3 4:ca27db159b10 134 * User defines write data ranging from 1-255 bytes.
j3 4:ca27db159b10 135 *
j3 4:ca27db159b10 136 * On Exit:
j3 4:ca27db159b10 137 * @param[out] status
j3 4:ca27db159b10 138 * Detects the condition of the Start (bit3), N/A (bit2),
j3 4:ca27db159b10 139 * Address(bit1) and CRC16(bit0) bits.
j3 4:ca27db159b10 140 * b3;0=No Err|1=I2CStart prev-not issued,
j3 4:ca27db159b10 141 * b2;0=No Err|1=I2C N/A Err,
j3 4:ca27db159b10 142 * b1;0=No Err|1=Addr Err,
j3 4:ca27db159b10 143 * b0;0=Valid CRC16|1=Invalid CRC16
j3 4:ca27db159b10 144 *
j3 4:ca27db159b10 145 * @param[out] wr_status
j3 4:ca27db159b10 146 * Indicates which write byte NACK’d. A value of 00h indicates
j3 4:ca27db159b10 147 * all bytes were acknowledged by the slave.
j3 4:ca27db159b10 148 * A non-zero value indicates the byte number that NACK’d.
j3 4:ca27db159b10 149 *
j3 4:ca27db159b10 150 * @return
j3 4:ca27db159b10 151 * true if device selected and written @n
j3 4:ca27db159b10 152 * false if failed device select
j3 4:ca27db159b10 153 **************************************************************/
j3 17:b646b1e3970b 154 CmdResult I2C_WriteDataWithStop(uint8_t I2C_addr, uint8_t length,
j3 7:78a8857b3810 155 uint8_t *data, uint8_t &status,
j3 7:78a8857b3810 156 uint8_t &wr_status);
j3 4:ca27db159b10 157
j3 4:ca27db159b10 158 /**********************************************************//**
j3 4:ca27db159b10 159 * @brief Write to selected DS28E17's I2C No Stop.
j3 4:ca27db159b10 160 * Poll until I2C write complete and receive status info.
j3 4:ca27db159b10 161 *
j3 4:ca27db159b10 162 * @details Output on I2C: S, Address + Write, Write Data [1-255]
j3 4:ca27db159b10 163 *
j3 4:ca27db159b10 164 * On Entry:
j3 4:ca27db159b10 165 * @param[in] I2C_addr
j3 4:ca27db159b10 166 * Writes I2C address. The least significant bit of the I2C address
j3 4:ca27db159b10 167 * is automatically cleared by the command.
j3 4:ca27db159b10 168 *
j3 4:ca27db159b10 169 * @param[in] length
j3 4:ca27db159b10 170 * The number of data bytes to be written ranging from 01h to FFh.
j3 4:ca27db159b10 171 * A value of zero will assert the Error Detected pin (ED).
j3 4:ca27db159b10 172 *
j3 4:ca27db159b10 173 * @param[in] *data
j3 4:ca27db159b10 174 * User defines write data ranging from 1-255 bytes.
j3 4:ca27db159b10 175 *
j3 4:ca27db159b10 176 * On Exit:
j3 4:ca27db159b10 177 * @param[out] status
j3 4:ca27db159b10 178 * Detects the condition of the Start (bit3), N/A (bit2),
j3 4:ca27db159b10 179 * Address(bit1) and CRC16(bit0) bits.
j3 4:ca27db159b10 180 * b3;0=No Err|1=I2CStart prev-not issued,
j3 4:ca27db159b10 181 * b2;0=No Err|1=I2C N/A Err,
j3 4:ca27db159b10 182 * b1;0=No Err|1=Addr Err,
j3 4:ca27db159b10 183 * b0;0=Valid CRC16|1=Invalid CRC16
j3 4:ca27db159b10 184 *
j3 4:ca27db159b10 185 * @param[out] wr_status
j3 4:ca27db159b10 186 * Indicates which write byte NACK’d. A value of 00h indicates
j3 4:ca27db159b10 187 * all bytes were acknowledged by the slave.
j3 4:ca27db159b10 188 * A non-zero value indicates the byte number that NACK’d.
j3 4:ca27db159b10 189 *
j3 4:ca27db159b10 190 * @return
j3 4:ca27db159b10 191 * true if device selected and written @n
j3 4:ca27db159b10 192 * false if failed device select
j3 4:ca27db159b10 193 **************************************************************/
j3 17:b646b1e3970b 194 CmdResult I2C_WriteDataNoStop(uint8_t I2C_addr, uint8_t length,
j3 7:78a8857b3810 195 uint8_t *data, uint8_t &status,
j3 7:78a8857b3810 196 uint8_t &wr_status);
j3 4:ca27db159b10 197
j3 4:ca27db159b10 198
j3 4:ca27db159b10 199 /**********************************************************//**
j3 4:ca27db159b10 200 * @brief Write to selected DS28E17's I2C with Data only.
j3 4:ca27db159b10 201 * Poll until I2C write complete and receive status info.
j3 4:ca27db159b10 202 *
j3 4:ca27db159b10 203 * @details Output on I2C: Write Data [1-255]
j3 4:ca27db159b10 204 *
j3 4:ca27db159b10 205 * On Entry:
j3 4:ca27db159b10 206 * @param[in] length
j3 4:ca27db159b10 207 * The number of data bytes to be written ranging from 01h to FFh.
j3 4:ca27db159b10 208 * A value of zero will assert the Error Detected pin (ED).
j3 4:ca27db159b10 209 *
j3 4:ca27db159b10 210 * @param[in] *data
j3 4:ca27db159b10 211 * User defines write data ranging from 1-255 bytes.
j3 4:ca27db159b10 212 *
j3 4:ca27db159b10 213 * On Exit:
j3 4:ca27db159b10 214 * @param[out] status
j3 4:ca27db159b10 215 * Detects the condition of the Start (bit3), N/A (bit2),
j3 4:ca27db159b10 216 * Address(bit1) and CRC16(bit0) bits.
j3 4:ca27db159b10 217 * b3;0=No Err|1=I2CStart prev-not issued,
j3 4:ca27db159b10 218 * b2;0=No Err|1=I2C N/A Err,
j3 4:ca27db159b10 219 * b1;0=No Err|1=Addr Err,
j3 4:ca27db159b10 220 * b0;0=Valid CRC16|1=Invalid CRC16
j3 4:ca27db159b10 221 *
j3 4:ca27db159b10 222 * @param[out] wr_status
j3 4:ca27db159b10 223 * Indicates which write byte NACK’d. A value of 00h indicates all bytes were acknowledged by the slave.
j3 4:ca27db159b10 224 * A non-zero value indicates the byte number that NACK’d.
j3 4:ca27db159b10 225 *
j3 4:ca27db159b10 226 * @return
j3 4:ca27db159b10 227 * true if device selected and written @n
j3 4:ca27db159b10 228 * false if failed device select
j3 4:ca27db159b10 229 **************************************************************/
j3 17:b646b1e3970b 230 CmdResult I2C_WriteDataOnly(uint8_t length, uint8_t *data,
j3 7:78a8857b3810 231 uint8_t &status, uint8_t &wr_status);
j3 4:ca27db159b10 232
j3 4:ca27db159b10 233
j3 4:ca27db159b10 234 /**********************************************************//**
j3 4:ca27db159b10 235 * @brief Write to selected DS28E17's I2C with Stop.
j3 4:ca27db159b10 236 * Poll until I2C write complete and receive status info.
j3 4:ca27db159b10 237 *
j3 4:ca27db159b10 238 * @details Output on I2C: Write Data [1-255], P
j3 4:ca27db159b10 239 *
j3 4:ca27db159b10 240 * On Entry:
j3 4:ca27db159b10 241 * @param[in] length
j3 4:ca27db159b10 242 * The number of data bytes to be written ranging from 01h to FFh.
j3 4:ca27db159b10 243 * A value of zero will assert the Error Detected pin (ED).
j3 4:ca27db159b10 244 *
j3 4:ca27db159b10 245 * @param[in] *data
j3 4:ca27db159b10 246 * User defines write data ranging from 1-255 bytes.
j3 4:ca27db159b10 247 *
j3 4:ca27db159b10 248 * On Exit:
j3 4:ca27db159b10 249 * @param[out] status
j3 4:ca27db159b10 250 * Detects the condition of the Start (bit3), N/A (bit2),
j3 4:ca27db159b10 251 * Address(bit1) and CRC16(bit0) bits.
j3 4:ca27db159b10 252 * b3;0=No Err|1=I2CStart prev-not issued,
j3 4:ca27db159b10 253 * b2;0=No Err|1=I2C N/A Err,
j3 4:ca27db159b10 254 * b1;0=No Err|1=Addr Err,
j3 4:ca27db159b10 255 * b0;0=Valid CRC16|1=Invalid CRC16
j3 4:ca27db159b10 256 *
j3 4:ca27db159b10 257 * @param[out] wr_status
j3 4:ca27db159b10 258 * Indicates which write byte NACK’d. A value of 00h indicates all bytes were acknowledged by the slave.
j3 4:ca27db159b10 259 * A non-zero value indicates the byte number that NACK’d.
j3 4:ca27db159b10 260 *
j3 4:ca27db159b10 261 * @return
j3 4:ca27db159b10 262 * true if device selected and written @n
j3 4:ca27db159b10 263 * false if failed device select
j3 4:ca27db159b10 264 **************************************************************/
j3 17:b646b1e3970b 265 CmdResult I2C_WriteDataOnlyWithStop(uint8_t length, uint8_t *data,
j3 7:78a8857b3810 266 uint8_t &status, uint8_t &wr_status);
j3 4:ca27db159b10 267
j3 4:ca27db159b10 268
j3 4:ca27db159b10 269 /**********************************************************//**
j3 4:ca27db159b10 270 * @brief Write to selected DS28E17's I2C with Stop and poll until I2C write complete
j3 4:ca27db159b10 271 * receive status info, and read data with a stop at the end.
j3 4:ca27db159b10 272 *
j3 4:ca27db159b10 273 * @details Output on I2C:
j3 4:ca27db159b10 274 * S, Slave Address + Write, Write Data [1-255],
j3 4:ca27db159b10 275 * Sr, Address + Read, Read Data [1-255], P (NACK last read byte)
j3 4:ca27db159b10 276 *
j3 4:ca27db159b10 277 * On Entry:
j3 4:ca27db159b10 278 * @param[in] I2C_addr
j3 4:ca27db159b10 279 * Writes I2C address. The least significant bit of the I2C address
j3 4:ca27db159b10 280 * is automatically cleared by the command.
j3 4:ca27db159b10 281 *
j3 4:ca27db159b10 282 * @param[in] length
j3 4:ca27db159b10 283 * The number of data bytes to be written ranging from 01h to FFh.
j3 4:ca27db159b10 284 * A value of zero will assert the Error Detected pin (ED).
j3 4:ca27db159b10 285 *
j3 4:ca27db159b10 286 * @param[in] *data
j3 4:ca27db159b10 287 * User defines write data ranging from 1-255 bytes.
j3 4:ca27db159b10 288 *
j3 8:7c7a0ea0c568 289 * @param[in] nu_bytes_read
j3 4:ca27db159b10 290 * Number of I2C bytes to read. A value of zero will assert the Error Detected pin (ED).
j3 4:ca27db159b10 291 *
j3 8:7c7a0ea0c568 292 * On Exit:
j3 4:ca27db159b10 293 * @param[out] status
j3 4:ca27db159b10 294 * Detects the condition of the Start (bit3), N/A (bit2),
j3 4:ca27db159b10 295 * Address(bit1) and CRC16(bit0) bits.
j3 4:ca27db159b10 296 * b3;0=No Err|1=I2CStart prev-not issued,
j3 4:ca27db159b10 297 * b2;0=No Err|1=I2C N/A Err,
j3 4:ca27db159b10 298 * b1;0=No Err|1=Addr Err,
j3 4:ca27db159b10 299 * b0;0=Valid CRC16|1=Invalid CRC16
j3 4:ca27db159b10 300 *
j3 4:ca27db159b10 301 * @param[out] wr_status
j3 4:ca27db159b10 302 * Indicates which write byte NACK’d. A value of 00h indicates all bytes were acknowledged by the slave.
j3 4:ca27db159b10 303 * A non-zero value indicates the byte number that NACK’d.
j3 4:ca27db159b10 304 *
j3 4:ca27db159b10 305 * @param[out] *read_data
j3 4:ca27db159b10 306 * Array of read data received from I2C.
j3 4:ca27db159b10 307 *
j3 4:ca27db159b10 308 * @return
j3 4:ca27db159b10 309 * true if device selected, written and read @n
j3 4:ca27db159b10 310 * false if failed device select or timeout occurred or CRC16 error
j3 4:ca27db159b10 311 **************************************************************/
j3 17:b646b1e3970b 312 CmdResult I2C_WriteReadDataWithStop(uint8_t I2C_addr, uint8_t length,
j3 4:ca27db159b10 313 uint8_t *data, uint8_t nu_bytes_read,
j3 7:78a8857b3810 314 uint8_t &status, uint8_t &wr_status,
j3 4:ca27db159b10 315 uint8_t *read_data);
j3 4:ca27db159b10 316
j3 4:ca27db159b10 317
j3 4:ca27db159b10 318 /**********************************************************//**
j3 4:ca27db159b10 319 * @brief Selected DS28E17's and send I2C address and poll until
j3 4:ca27db159b10 320 * I2C read address complete, receive status info, and read data
j3 4:ca27db159b10 321 * with a stop at the end.
j3 4:ca27db159b10 322 *
j3 4:ca27db159b10 323 * @details Output on I2C:
j3 4:ca27db159b10 324 * S, Slave Address + Read, Read Data [1-255], P (NACK last read byte)
j3 4:ca27db159b10 325 *
j3 4:ca27db159b10 326 * On Entry:
j3 4:ca27db159b10 327 * @param[in] I2C_addr
j3 4:ca27db159b10 328 * Writes I2C address. The least significant bit of the I2C address
j3 4:ca27db159b10 329 * is automatically cleared by the command.
j3 4:ca27db159b10 330 *
j3 4:ca27db159b10 331 * On Exit:
j3 4:ca27db159b10 332 * @param[out] nu_bytes_read
j3 4:ca27db159b10 333 * Number of I2C bytes to read. A value of zero will assert the Error Detected pin (ED).
j3 4:ca27db159b10 334 *
j3 4:ca27db159b10 335 * @param[out] status
j3 4:ca27db159b10 336 * Detects the condition of the Start (bit3), N/A (bit2),
j3 4:ca27db159b10 337 * Address(bit1) and CRC16(bit0) bits.
j3 4:ca27db159b10 338 * b3;0=No Err|1=I2CStart prev-not issued,
j3 4:ca27db159b10 339 * b2;0=No Err|1=I2C N/A Err,
j3 4:ca27db159b10 340 * b1;0=No Err|1=Addr Err,
j3 4:ca27db159b10 341 * b0;0=Valid CRC16|1=Invalid CRC16
j3 4:ca27db159b10 342 *
j3 4:ca27db159b10 343 * @param[out] *read_data
j3 4:ca27db159b10 344 * Array of read data received from I2C.
j3 4:ca27db159b10 345 *
j3 4:ca27db159b10 346 * @return
j3 4:ca27db159b10 347 * true if device selected, written and read @n
j3 4:ca27db159b10 348 * false if failed device select or timeout occurred or CRC16 error
j3 4:ca27db159b10 349 **************************************************************/
j3 17:b646b1e3970b 350 CmdResult I2C_ReadDataWithStop(uint8_t I2C_addr, uint8_t nu_bytes_read,
j3 7:78a8857b3810 351 uint8_t &status, uint8_t *read_data);
j3 4:ca27db159b10 352
j3 4:ca27db159b10 353
j3 4:ca27db159b10 354 /**********************************************************//**
j3 4:ca27db159b10 355 * @brief Write to Configuration Register of DS28E17.
j3 4:ca27db159b10 356 *
j3 4:ca27db159b10 357 * @details
j3 4:ca27db159b10 358 *
j3 4:ca27db159b10 359 * On Entry:
j3 4:ca27db159b10 360 * @param[in] data
j3 4:ca27db159b10 361 * sent to configuration register
j3 4:ca27db159b10 362 *
j3 4:ca27db159b10 363 * On Exit:
j3 4:ca27db159b10 364 *
j3 4:ca27db159b10 365 * @return
j3 4:ca27db159b10 366 * true if device selected and written @n
j3 4:ca27db159b10 367 * false if failed device select
j3 4:ca27db159b10 368 **************************************************************/
j3 17:b646b1e3970b 369 CmdResult WriteConfigReg(uint8_t data);
j3 4:ca27db159b10 370
j3 4:ca27db159b10 371
j3 4:ca27db159b10 372 /**********************************************************//**
j3 4:ca27db159b10 373 * @brief Read the Configuration Register of DS28E17.
j3 4:ca27db159b10 374 *
j3 4:ca27db159b10 375 * @details
j3 4:ca27db159b10 376 *
j3 4:ca27db159b10 377 * On Entry:
j3 4:ca27db159b10 378 *
j3 4:ca27db159b10 379 * On Exit:
j3 4:ca27db159b10 380 *
j3 4:ca27db159b10 381 * @return
j3 7:78a8857b3810 382 * true if device selected and read correctly @n
j3 4:ca27db159b10 383 * false if failed device select
j3 4:ca27db159b10 384 **************************************************************/
j3 17:b646b1e3970b 385 CmdResult ReadConfigReg(uint8_t & config);
j3 4:ca27db159b10 386
j3 4:ca27db159b10 387
j3 4:ca27db159b10 388 /**********************************************************//**
j3 4:ca27db159b10 389 * @brief Disable 1-Wire Mode DS28E17 and activates the input detection pin.
j3 4:ca27db159b10 390 * Immediately after the command, all 1-Wire signaling will be ignored
j3 4:ca27db159b10 391 * until the 1W_DET pin is high for more than 3ms.
j3 4:ca27db159b10 392 *
j3 4:ca27db159b10 393 * @details
j3 4:ca27db159b10 394 *
j3 4:ca27db159b10 395 * On Entry:
j3 4:ca27db159b10 396 *
j3 4:ca27db159b10 397 * On Exit:
j3 4:ca27db159b10 398 *
j3 4:ca27db159b10 399 * @return
j3 4:ca27db159b10 400 * true if device selected and written @n
j3 4:ca27db159b10 401 * false if failed device select
j3 4:ca27db159b10 402 **************************************************************/
j3 17:b646b1e3970b 403 CmdResult DisableOWMode();
j3 4:ca27db159b10 404
j3 4:ca27db159b10 405
j3 4:ca27db159b10 406 /**********************************************************//**
j3 4:ca27db159b10 407 * @brief The Enable Sleep Mode command puts the device into a low current mode.
j3 4:ca27db159b10 408 * All 1-Wire communication is ignored until woken up. Immediately after
j3 4:ca27db159b10 409 * the command, the device monitors the WAKEUP input pin and
j3 4:ca27db159b10 410 * exits sleep mode on a rising edge.
j3 4:ca27db159b10 411 *
j3 4:ca27db159b10 412 * @details
j3 4:ca27db159b10 413 *
j3 4:ca27db159b10 414 * On Entry:
j3 4:ca27db159b10 415 *
j3 4:ca27db159b10 416 * On Exit:
j3 4:ca27db159b10 417 *
j3 4:ca27db159b10 418 * @return
j3 4:ca27db159b10 419 * true if device selected and written @n
j3 4:ca27db159b10 420 * false if failed device select*
j3 4:ca27db159b10 421 **************************************************************/
j3 17:b646b1e3970b 422 CmdResult EnableSleepMode();
j3 4:ca27db159b10 423
j3 4:ca27db159b10 424
j3 4:ca27db159b10 425 /**********************************************************//**
j3 4:ca27db159b10 426 * @brief Read the Device Revision of DS28E17. The revision value
j3 4:ca27db159b10 427 * should never be zero. The upper nibble is the major revision
j3 4:ca27db159b10 428 * and the lower nibble is the minor revision.
j3 4:ca27db159b10 429 *
j3 4:ca27db159b10 430 * @details
j3 4:ca27db159b10 431 *
j3 4:ca27db159b10 432 * On Entry:
j3 4:ca27db159b10 433 *
j3 4:ca27db159b10 434 * On Exit:
j3 4:ca27db159b10 435 *
j3 4:ca27db159b10 436 * @return
j3 4:ca27db159b10 437 * revision value if device selected and read correctly @n
j3 4:ca27db159b10 438 * false if failed device select (i.e. 00h)
j3 4:ca27db159b10 439 **************************************************************/
j3 17:b646b1e3970b 440 CmdResult ReadDeviceRevision(uint8_t & rev);
j3 4:ca27db159b10 441
j3 4:ca27db159b10 442 private:
j3 4:ca27db159b10 443
j3 17:b646b1e3970b 444 CmdResult send_packet(const uint8_t * data, uint8_t data_length,
j3 17:b646b1e3970b 445 uint8_t & status, uint8_t & wr_status);
j3 17:b646b1e3970b 446
j3 17:b646b1e3970b 447 //overloaded function for I2C read only command
j3 17:b646b1e3970b 448 CmdResult send_packet(const uint8_t * data, uint8_t data_length,
j3 17:b646b1e3970b 449 uint8_t & status);
j3 17:b646b1e3970b 450
j3 17:b646b1e3970b 451 OneWireInterface &_owm;
j3 17:b646b1e3970b 452 RomId _romId;
j3 7:78a8857b3810 453
j3 4:ca27db159b10 454 uint16_t _crc16;
j3 4:ca27db159b10 455 uint8_t _i2c_speed;
j3 4:ca27db159b10 456
j3 7:78a8857b3810 457 static const uint16_t _oddparity[16];
j3 4:ca27db159b10 458
j3 4:ca27db159b10 459 uint16_t docrc16(uint16_t data);
j3 4:ca27db159b10 460 };
j3 4:ca27db159b10 461
j3 17:b646b1e3970b 462 #endif /*DS28E17_H*/
j3 17:b646b1e3970b 463