1-Wire® library for mbed. Complete 1-Wire library that supports our silicon masters along with a bit-bang master on the MAX32600MBED platform with one common interface for mbed. Slave support has also been included and more slaves will be added as time permits.
Dependents: MAXREFDES131_Qt_Demo MAX32630FTHR_iButton_uSD_Logger MAX32630FTHR_DS18B20_uSD_Logger MAXREFDES130_131_Demo ... more
Superseded by MaximInterface.
Switches/DS2413/DS2413.cpp@76:84e6c4994e29, 2016-05-14 (annotated)
- Committer:
- IanBenzMaxim
- Date:
- Sat May 14 14:27:56 2016 -0500
- Revision:
- 76:84e6c4994e29
- Parent:
- 75:8b627804927c
- Child:
- 77:529edb329ee0
Move ROM commands outside of OneWireMaster to increase cohesiveness of the class. Do not use subdivide OneWire namespace since it will likely not provide value on this project.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
j3 | 19:6d4c039a2d8e | 1 | /******************************************************************//** |
j3 | 19:6d4c039a2d8e | 2 | * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved. |
j3 | 19:6d4c039a2d8e | 3 | * |
j3 | 19:6d4c039a2d8e | 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
j3 | 19:6d4c039a2d8e | 5 | * copy of this software and associated documentation files (the "Software"), |
j3 | 19:6d4c039a2d8e | 6 | * to deal in the Software without restriction, including without limitation |
j3 | 19:6d4c039a2d8e | 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
j3 | 19:6d4c039a2d8e | 8 | * and/or sell copies of the Software, and to permit persons to whom the |
j3 | 19:6d4c039a2d8e | 9 | * Software is furnished to do so, subject to the following conditions: |
j3 | 19:6d4c039a2d8e | 10 | * |
j3 | 19:6d4c039a2d8e | 11 | * The above copyright notice and this permission notice shall be included |
j3 | 19:6d4c039a2d8e | 12 | * in all copies or substantial portions of the Software. |
j3 | 19:6d4c039a2d8e | 13 | * |
j3 | 19:6d4c039a2d8e | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
j3 | 19:6d4c039a2d8e | 15 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
j3 | 19:6d4c039a2d8e | 16 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
j3 | 19:6d4c039a2d8e | 17 | * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES |
j3 | 19:6d4c039a2d8e | 18 | * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
j3 | 19:6d4c039a2d8e | 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
j3 | 19:6d4c039a2d8e | 20 | * OTHER DEALINGS IN THE SOFTWARE. |
j3 | 19:6d4c039a2d8e | 21 | * |
j3 | 19:6d4c039a2d8e | 22 | * Except as contained in this notice, the name of Maxim Integrated |
j3 | 19:6d4c039a2d8e | 23 | * Products, Inc. shall not be used except as stated in the Maxim Integrated |
j3 | 19:6d4c039a2d8e | 24 | * Products, Inc. Branding Policy. |
j3 | 19:6d4c039a2d8e | 25 | * |
j3 | 19:6d4c039a2d8e | 26 | * The mere transfer of this software does not imply any licenses |
j3 | 19:6d4c039a2d8e | 27 | * of trade secrets, proprietary technology, copyrights, patents, |
j3 | 19:6d4c039a2d8e | 28 | * trademarks, maskwork rights, or any other form of intellectual |
j3 | 19:6d4c039a2d8e | 29 | * property whatsoever. Maxim Integrated Products, Inc. retains all |
j3 | 19:6d4c039a2d8e | 30 | * ownership rights. |
j3 | 19:6d4c039a2d8e | 31 | **********************************************************************/ |
j3 | 19:6d4c039a2d8e | 32 | |
IanBenzMaxim | 73:2cecc1372acc | 33 | #include "DS2413.h" |
IanBenzMaxim | 73:2cecc1372acc | 34 | #include "Masters/OneWireMasters.h" |
IanBenzMaxim | 76:84e6c4994e29 | 35 | #include "RomCommands.h" |
j3 | 19:6d4c039a2d8e | 36 | |
IanBenzMaxim | 76:84e6c4994e29 | 37 | using OneWire::DS2413; |
IanBenzMaxim | 76:84e6c4994e29 | 38 | using OneWire::OneWireMaster; |
IanBenzMaxim | 76:84e6c4994e29 | 39 | using namespace OneWire::RomCommands; |
j3 | 19:6d4c039a2d8e | 40 | |
IanBenzMaxim | 75:8b627804927c | 41 | enum DS2413_CMDS |
IanBenzMaxim | 75:8b627804927c | 42 | { |
IanBenzMaxim | 75:8b627804927c | 43 | PIO_ACCESS_READ = 0xF5, |
IanBenzMaxim | 75:8b627804927c | 44 | PIO_ACCESS_WRITE = 0x5A |
IanBenzMaxim | 75:8b627804927c | 45 | }; |
IanBenzMaxim | 75:8b627804927c | 46 | |
IanBenzMaxim | 75:8b627804927c | 47 | enum DS2413_PIO |
IanBenzMaxim | 75:8b627804927c | 48 | { |
IanBenzMaxim | 75:8b627804927c | 49 | PIOA, |
IanBenzMaxim | 75:8b627804927c | 50 | PIOB, |
IanBenzMaxim | 75:8b627804927c | 51 | PIOAB |
IanBenzMaxim | 75:8b627804927c | 52 | }; |
IanBenzMaxim | 75:8b627804927c | 53 | |
IanBenzMaxim | 76:84e6c4994e29 | 54 | DS2413::DS2413(OneWireMaster &owm) : OneWireSlave(&owm) |
j3 | 19:6d4c039a2d8e | 55 | { |
j3 | 19:6d4c039a2d8e | 56 | } |
j3 | 19:6d4c039a2d8e | 57 | |
IanBenzMaxim | 73:2cecc1372acc | 58 | DS2413::CmdResult DS2413::pio_access_read_chA(uint8_t & val) |
j3 | 19:6d4c039a2d8e | 59 | { |
IanBenzMaxim | 74:23be10c32fa3 | 60 | DS2413::CmdResult result = OpFailure; |
IanBenzMaxim | 74:23be10c32fa3 | 61 | |
IanBenzMaxim | 74:23be10c32fa3 | 62 | result = pio_access_read(val); |
IanBenzMaxim | 74:23be10c32fa3 | 63 | |
IanBenzMaxim | 74:23be10c32fa3 | 64 | val = (val & 0x01); |
IanBenzMaxim | 74:23be10c32fa3 | 65 | |
IanBenzMaxim | 74:23be10c32fa3 | 66 | return result; |
j3 | 19:6d4c039a2d8e | 67 | } |
j3 | 19:6d4c039a2d8e | 68 | |
IanBenzMaxim | 73:2cecc1372acc | 69 | DS2413::CmdResult DS2413::pio_access_read_chB(uint8_t & val) |
j3 | 19:6d4c039a2d8e | 70 | { |
IanBenzMaxim | 74:23be10c32fa3 | 71 | DS2413::CmdResult result = OpFailure; |
IanBenzMaxim | 74:23be10c32fa3 | 72 | |
IanBenzMaxim | 74:23be10c32fa3 | 73 | result = pio_access_read(val); |
IanBenzMaxim | 74:23be10c32fa3 | 74 | |
IanBenzMaxim | 74:23be10c32fa3 | 75 | val = ((val >> 2) & 0x01); |
IanBenzMaxim | 74:23be10c32fa3 | 76 | |
IanBenzMaxim | 74:23be10c32fa3 | 77 | return result; |
j3 | 19:6d4c039a2d8e | 78 | } |
j3 | 19:6d4c039a2d8e | 79 | |
IanBenzMaxim | 73:2cecc1372acc | 80 | DS2413::CmdResult DS2413::pio_access_write_chA(uint8_t val) |
j3 | 19:6d4c039a2d8e | 81 | { |
IanBenzMaxim | 74:23be10c32fa3 | 82 | DS2413::CmdResult result = OpFailure; |
IanBenzMaxim | 74:23be10c32fa3 | 83 | |
IanBenzMaxim | 74:23be10c32fa3 | 84 | uint8_t local_val = 0; |
IanBenzMaxim | 74:23be10c32fa3 | 85 | |
IanBenzMaxim | 74:23be10c32fa3 | 86 | //read current state of PIO |
IanBenzMaxim | 74:23be10c32fa3 | 87 | result = pio_access_read(local_val); |
IanBenzMaxim | 74:23be10c32fa3 | 88 | |
IanBenzMaxim | 74:23be10c32fa3 | 89 | if (result == DS2413::Success) |
IanBenzMaxim | 74:23be10c32fa3 | 90 | { |
IanBenzMaxim | 74:23be10c32fa3 | 91 | //modify |
IanBenzMaxim | 74:23be10c32fa3 | 92 | //current state of pioB OR |
IanBenzMaxim | 74:23be10c32fa3 | 93 | //desired state of pioA OR |
IanBenzMaxim | 74:23be10c32fa3 | 94 | //bits[7:2] should all be 1, per datasheet |
IanBenzMaxim | 74:23be10c32fa3 | 95 | val = (0xFC | (((local_val >> 1) & 0x02) | (0x01 & val))); |
IanBenzMaxim | 74:23be10c32fa3 | 96 | |
IanBenzMaxim | 74:23be10c32fa3 | 97 | //write, bit[1:0] new state of pio |
IanBenzMaxim | 74:23be10c32fa3 | 98 | result = pio_access_write(val); |
IanBenzMaxim | 74:23be10c32fa3 | 99 | } |
IanBenzMaxim | 74:23be10c32fa3 | 100 | |
IanBenzMaxim | 74:23be10c32fa3 | 101 | return result; |
j3 | 19:6d4c039a2d8e | 102 | } |
j3 | 19:6d4c039a2d8e | 103 | |
IanBenzMaxim | 73:2cecc1372acc | 104 | DS2413::CmdResult DS2413::pio_access_write_chB(uint8_t val) |
j3 | 19:6d4c039a2d8e | 105 | { |
IanBenzMaxim | 74:23be10c32fa3 | 106 | DS2413::CmdResult result = OpFailure; |
IanBenzMaxim | 74:23be10c32fa3 | 107 | |
IanBenzMaxim | 74:23be10c32fa3 | 108 | uint8_t local_val = 0; |
IanBenzMaxim | 74:23be10c32fa3 | 109 | |
IanBenzMaxim | 74:23be10c32fa3 | 110 | //read current state of PIO |
IanBenzMaxim | 74:23be10c32fa3 | 111 | result = pio_access_read(local_val); |
IanBenzMaxim | 74:23be10c32fa3 | 112 | |
IanBenzMaxim | 74:23be10c32fa3 | 113 | if (result == DS2413::Success) |
IanBenzMaxim | 74:23be10c32fa3 | 114 | { |
IanBenzMaxim | 74:23be10c32fa3 | 115 | //modify |
IanBenzMaxim | 74:23be10c32fa3 | 116 | //current state of pioA OR |
IanBenzMaxim | 74:23be10c32fa3 | 117 | //desired state of pioB OR |
IanBenzMaxim | 74:23be10c32fa3 | 118 | //bits[7:2] should all be 1, per datasheet |
IanBenzMaxim | 74:23be10c32fa3 | 119 | val = (0xFC | ((local_val & 0x01) | (0x02 & (val << 1)))); |
IanBenzMaxim | 74:23be10c32fa3 | 120 | |
IanBenzMaxim | 74:23be10c32fa3 | 121 | //write, bit[1:0] new state of pio |
IanBenzMaxim | 74:23be10c32fa3 | 122 | result = pio_access_write(val); |
IanBenzMaxim | 74:23be10c32fa3 | 123 | } |
IanBenzMaxim | 74:23be10c32fa3 | 124 | |
IanBenzMaxim | 74:23be10c32fa3 | 125 | return result; |
j3 | 19:6d4c039a2d8e | 126 | } |
j3 | 19:6d4c039a2d8e | 127 | |
IanBenzMaxim | 73:2cecc1372acc | 128 | DS2413::CmdResult DS2413::pio_access_write_chAB(uint8_t val) |
j3 | 54:08985bf69691 | 129 | { |
IanBenzMaxim | 73:2cecc1372acc | 130 | return pio_access_write((0x03 & val) | 0xFC); |
j3 | 54:08985bf69691 | 131 | } |
j3 | 54:08985bf69691 | 132 | |
IanBenzMaxim | 73:2cecc1372acc | 133 | DS2413::CmdResult DS2413::pio_access_read(uint8_t & val) |
j3 | 19:6d4c039a2d8e | 134 | { |
IanBenzMaxim | 74:23be10c32fa3 | 135 | DS2413::CmdResult result = DS2413::OpFailure; |
IanBenzMaxim | 74:23be10c32fa3 | 136 | |
IanBenzMaxim | 76:84e6c4994e29 | 137 | OneWireMaster::CmdResult ow_result = OWMatchRom(*p_owMaster, romId); |
IanBenzMaxim | 74:23be10c32fa3 | 138 | |
IanBenzMaxim | 74:23be10c32fa3 | 139 | if (ow_result == OneWireMaster::Success) |
j3 | 19:6d4c039a2d8e | 140 | { |
IanBenzMaxim | 76:84e6c4994e29 | 141 | ow_result = p_owMaster->OWWriteByte(PIO_ACCESS_READ); |
IanBenzMaxim | 74:23be10c32fa3 | 142 | |
IanBenzMaxim | 74:23be10c32fa3 | 143 | if (ow_result == OneWireMaster::Success) |
IanBenzMaxim | 74:23be10c32fa3 | 144 | { |
IanBenzMaxim | 76:84e6c4994e29 | 145 | ow_result = p_owMaster->OWReadByte(val); |
IanBenzMaxim | 74:23be10c32fa3 | 146 | |
IanBenzMaxim | 74:23be10c32fa3 | 147 | if (ow_result == OneWireMaster::Success) |
IanBenzMaxim | 74:23be10c32fa3 | 148 | { |
IanBenzMaxim | 74:23be10c32fa3 | 149 | result = DS2413::Success; |
IanBenzMaxim | 74:23be10c32fa3 | 150 | } |
IanBenzMaxim | 74:23be10c32fa3 | 151 | else |
IanBenzMaxim | 74:23be10c32fa3 | 152 | { |
IanBenzMaxim | 74:23be10c32fa3 | 153 | result = DS2413::CommsReadError; |
IanBenzMaxim | 74:23be10c32fa3 | 154 | } |
IanBenzMaxim | 74:23be10c32fa3 | 155 | } |
IanBenzMaxim | 74:23be10c32fa3 | 156 | else |
IanBenzMaxim | 74:23be10c32fa3 | 157 | { |
IanBenzMaxim | 74:23be10c32fa3 | 158 | result = DS2413::CommsWriteError; |
IanBenzMaxim | 74:23be10c32fa3 | 159 | } |
j3 | 19:6d4c039a2d8e | 160 | } |
IanBenzMaxim | 74:23be10c32fa3 | 161 | |
IanBenzMaxim | 74:23be10c32fa3 | 162 | return result; |
j3 | 19:6d4c039a2d8e | 163 | } |
j3 | 19:6d4c039a2d8e | 164 | |
IanBenzMaxim | 73:2cecc1372acc | 165 | DS2413::CmdResult DS2413::pio_access_write(uint8_t val) |
j3 | 19:6d4c039a2d8e | 166 | { |
IanBenzMaxim | 74:23be10c32fa3 | 167 | DS2413::CmdResult result = DS2413::OpFailure; |
IanBenzMaxim | 74:23be10c32fa3 | 168 | |
IanBenzMaxim | 76:84e6c4994e29 | 169 | OneWireMaster::CmdResult ow_result = OWMatchRom(*p_owMaster, romId); |
IanBenzMaxim | 74:23be10c32fa3 | 170 | |
IanBenzMaxim | 74:23be10c32fa3 | 171 | if (ow_result == OneWireMaster::Success) |
j3 | 19:6d4c039a2d8e | 172 | { |
IanBenzMaxim | 75:8b627804927c | 173 | uint8_t send_block[] = { PIO_ACCESS_WRITE, val, ~val }; |
IanBenzMaxim | 74:23be10c32fa3 | 174 | |
IanBenzMaxim | 76:84e6c4994e29 | 175 | ow_result = p_owMaster->OWWriteBlock(send_block, 3); |
IanBenzMaxim | 74:23be10c32fa3 | 176 | if (ow_result == OneWireMaster::Success) |
j3 | 19:6d4c039a2d8e | 177 | { |
IanBenzMaxim | 74:23be10c32fa3 | 178 | uint8_t expected_status = ((0x01 & val) | ((0x01 & val) << 1) | |
IanBenzMaxim | 74:23be10c32fa3 | 179 | ((0x02 & val) << 1) | ((0x02 & val) << 2)); |
IanBenzMaxim | 74:23be10c32fa3 | 180 | |
IanBenzMaxim | 74:23be10c32fa3 | 181 | uint8_t rcv_block[2]; |
IanBenzMaxim | 76:84e6c4994e29 | 182 | ow_result = p_owMaster->OWReadBlock(rcv_block, 2); |
IanBenzMaxim | 74:23be10c32fa3 | 183 | |
IanBenzMaxim | 74:23be10c32fa3 | 184 | if (ow_result == OneWireMaster::Success) |
IanBenzMaxim | 74:23be10c32fa3 | 185 | { |
IanBenzMaxim | 74:23be10c32fa3 | 186 | if ((rcv_block[0] == 0xAA) && ((rcv_block[1] & 0x0F) == expected_status)) |
IanBenzMaxim | 74:23be10c32fa3 | 187 | { |
IanBenzMaxim | 74:23be10c32fa3 | 188 | result = DS2413::Success; |
IanBenzMaxim | 74:23be10c32fa3 | 189 | } |
IanBenzMaxim | 74:23be10c32fa3 | 190 | } |
IanBenzMaxim | 74:23be10c32fa3 | 191 | else |
IanBenzMaxim | 74:23be10c32fa3 | 192 | { |
IanBenzMaxim | 74:23be10c32fa3 | 193 | result = DS2413::CommsReadError; |
IanBenzMaxim | 74:23be10c32fa3 | 194 | } |
j3 | 19:6d4c039a2d8e | 195 | } |
IanBenzMaxim | 74:23be10c32fa3 | 196 | else |
IanBenzMaxim | 74:23be10c32fa3 | 197 | { |
IanBenzMaxim | 74:23be10c32fa3 | 198 | result = DS2413::CommsWriteError; |
IanBenzMaxim | 74:23be10c32fa3 | 199 | } |
j3 | 19:6d4c039a2d8e | 200 | } |
IanBenzMaxim | 74:23be10c32fa3 | 201 | |
IanBenzMaxim | 74:23be10c32fa3 | 202 | return result; |
j3 | 19:6d4c039a2d8e | 203 | } |