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1-Wire implementation, using DS2480B controller interfaced with serial port, working example to read DS18B20, based on work already in progress / Dallas - Public domain code
Headers/ds2480.h@0:1193dbfe28e2, 2011-03-24 (annotated)
- Committer:
- pwheels
- Date:
- Thu Mar 24 17:21:29 2011 +0000
- Revision:
- 0:1193dbfe28e2
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
pwheels | 0:1193dbfe28e2 | 1 | //--------------------------------------------------------------------------- |
pwheels | 0:1193dbfe28e2 | 2 | // Copyright (C) 2000 Dallas Semiconductor Corporation, All Rights Reserved. |
pwheels | 0:1193dbfe28e2 | 3 | // |
pwheels | 0:1193dbfe28e2 | 4 | // Permission is hereby granted, free of charge, to any person obtaining a |
pwheels | 0:1193dbfe28e2 | 5 | // copy of this software and associated documentation files (the "Software"), |
pwheels | 0:1193dbfe28e2 | 6 | // to deal in the Software without restriction, including without limitation |
pwheels | 0:1193dbfe28e2 | 7 | // the rights to use, copy, modify, merge, publish, distribute, sublicense, |
pwheels | 0:1193dbfe28e2 | 8 | // and/or sell copies of the Software, and to permit persons to whom the |
pwheels | 0:1193dbfe28e2 | 9 | // Software is furnished to do so, subject to the following conditions: |
pwheels | 0:1193dbfe28e2 | 10 | // |
pwheels | 0:1193dbfe28e2 | 11 | // The above copyright notice and this permission notice shall be included |
pwheels | 0:1193dbfe28e2 | 12 | // in all copies or substantial portions of the Software. |
pwheels | 0:1193dbfe28e2 | 13 | // |
pwheels | 0:1193dbfe28e2 | 14 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
pwheels | 0:1193dbfe28e2 | 15 | // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
pwheels | 0:1193dbfe28e2 | 16 | // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
pwheels | 0:1193dbfe28e2 | 17 | // IN NO EVENT SHALL DALLAS SEMICONDUCTOR BE LIABLE FOR ANY CLAIM, DAMAGES |
pwheels | 0:1193dbfe28e2 | 18 | // OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
pwheels | 0:1193dbfe28e2 | 19 | // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
pwheels | 0:1193dbfe28e2 | 20 | // OTHER DEALINGS IN THE SOFTWARE. |
pwheels | 0:1193dbfe28e2 | 21 | // |
pwheels | 0:1193dbfe28e2 | 22 | // Except as contained in this notice, the name of Dallas Semiconductor |
pwheels | 0:1193dbfe28e2 | 23 | // shall not be used except as stated in the Dallas Semiconductor |
pwheels | 0:1193dbfe28e2 | 24 | // Branding Policy. |
pwheels | 0:1193dbfe28e2 | 25 | //--------------------------------------------------------------------------- |
pwheels | 0:1193dbfe28e2 | 26 | // |
pwheels | 0:1193dbfe28e2 | 27 | // DS2480.H - This file contains the DS2480B constants |
pwheels | 0:1193dbfe28e2 | 28 | // |
pwheels | 0:1193dbfe28e2 | 29 | // Version: 2.00 |
pwheels | 0:1193dbfe28e2 | 30 | // |
pwheels | 0:1193dbfe28e2 | 31 | // History: 1.02 -> 1.03 Make sure uchar is not defined twice. |
pwheels | 0:1193dbfe28e2 | 32 | // |
pwheels | 0:1193dbfe28e2 | 33 | // |
pwheels | 0:1193dbfe28e2 | 34 | |
pwheels | 0:1193dbfe28e2 | 35 | |
pwheels | 0:1193dbfe28e2 | 36 | #ifndef DS2480_H |
pwheels | 0:1193dbfe28e2 | 37 | #define DS2480_H |
pwheels | 0:1193dbfe28e2 | 38 | |
pwheels | 0:1193dbfe28e2 | 39 | #include "ownet.h" |
pwheels | 0:1193dbfe28e2 | 40 | |
pwheels | 0:1193dbfe28e2 | 41 | #ifndef __MC68K__ |
pwheels | 0:1193dbfe28e2 | 42 | #include <stdlib.h> |
pwheels | 0:1193dbfe28e2 | 43 | #ifndef _WIN32_WCE |
pwheels | 0:1193dbfe28e2 | 44 | #include <stdio.h> |
pwheels | 0:1193dbfe28e2 | 45 | #endif |
pwheels | 0:1193dbfe28e2 | 46 | #endif |
pwheels | 0:1193dbfe28e2 | 47 | |
pwheels | 0:1193dbfe28e2 | 48 | // Mode Commands |
pwheels | 0:1193dbfe28e2 | 49 | #define MODE_DATA 0xE1 |
pwheels | 0:1193dbfe28e2 | 50 | #define MODE_COMMAND 0xE3 |
pwheels | 0:1193dbfe28e2 | 51 | #define MODE_STOP_PULSE 0xF1 |
pwheels | 0:1193dbfe28e2 | 52 | |
pwheels | 0:1193dbfe28e2 | 53 | // Return byte value |
pwheels | 0:1193dbfe28e2 | 54 | #define RB_CHIPID_MASK 0x1C |
pwheels | 0:1193dbfe28e2 | 55 | #define RB_RESET_MASK 0x03 |
pwheels | 0:1193dbfe28e2 | 56 | #define RB_1WIRESHORT 0x00 |
pwheels | 0:1193dbfe28e2 | 57 | #define RB_PRESENCE 0x01 |
pwheels | 0:1193dbfe28e2 | 58 | #define RB_ALARMPRESENCE 0x02 |
pwheels | 0:1193dbfe28e2 | 59 | #define RB_NOPRESENCE 0x03 |
pwheels | 0:1193dbfe28e2 | 60 | |
pwheels | 0:1193dbfe28e2 | 61 | #define RB_BIT_MASK 0x03 |
pwheels | 0:1193dbfe28e2 | 62 | #define RB_BIT_ONE 0x03 |
pwheels | 0:1193dbfe28e2 | 63 | #define RB_BIT_ZERO 0x00 |
pwheels | 0:1193dbfe28e2 | 64 | |
pwheels | 0:1193dbfe28e2 | 65 | // Masks for all bit ranges |
pwheels | 0:1193dbfe28e2 | 66 | #define CMD_MASK 0x80 |
pwheels | 0:1193dbfe28e2 | 67 | #define FUNCTSEL_MASK 0x60 |
pwheels | 0:1193dbfe28e2 | 68 | #define BITPOL_MASK 0x10 |
pwheels | 0:1193dbfe28e2 | 69 | #define SPEEDSEL_MASK 0x0C |
pwheels | 0:1193dbfe28e2 | 70 | #define MODSEL_MASK 0x02 |
pwheels | 0:1193dbfe28e2 | 71 | #define PARMSEL_MASK 0x70 |
pwheels | 0:1193dbfe28e2 | 72 | #define PARMSET_MASK 0x0E |
pwheels | 0:1193dbfe28e2 | 73 | #define VERSION_MASK 0x1C |
pwheels | 0:1193dbfe28e2 | 74 | |
pwheels | 0:1193dbfe28e2 | 75 | // Command or config bit |
pwheels | 0:1193dbfe28e2 | 76 | #define CMD_COMM 0x81 |
pwheels | 0:1193dbfe28e2 | 77 | #define CMD_CONFIG 0x01 |
pwheels | 0:1193dbfe28e2 | 78 | |
pwheels | 0:1193dbfe28e2 | 79 | // Function select bits |
pwheels | 0:1193dbfe28e2 | 80 | #define FUNCTSEL_BIT 0x00 |
pwheels | 0:1193dbfe28e2 | 81 | #define FUNCTSEL_SEARCHON 0x30 |
pwheels | 0:1193dbfe28e2 | 82 | #define FUNCTSEL_SEARCHOFF 0x20 |
pwheels | 0:1193dbfe28e2 | 83 | #define FUNCTSEL_RESET 0x40 |
pwheels | 0:1193dbfe28e2 | 84 | #define FUNCTSEL_CHMOD 0x60 |
pwheels | 0:1193dbfe28e2 | 85 | |
pwheels | 0:1193dbfe28e2 | 86 | // Bit polarity/Pulse voltage bits |
pwheels | 0:1193dbfe28e2 | 87 | #define BITPOL_ONE 0x10 |
pwheels | 0:1193dbfe28e2 | 88 | #define BITPOL_ZERO 0x00 |
pwheels | 0:1193dbfe28e2 | 89 | #define BITPOL_5V 0x00 |
pwheels | 0:1193dbfe28e2 | 90 | #define BITPOL_12V 0x10 |
pwheels | 0:1193dbfe28e2 | 91 | |
pwheels | 0:1193dbfe28e2 | 92 | // One Wire speed bits |
pwheels | 0:1193dbfe28e2 | 93 | #define SPEEDSEL_STD 0x00 |
pwheels | 0:1193dbfe28e2 | 94 | #define SPEEDSEL_FLEX 0x04 |
pwheels | 0:1193dbfe28e2 | 95 | #define SPEEDSEL_OD 0x08 |
pwheels | 0:1193dbfe28e2 | 96 | #define SPEEDSEL_PULSE 0x0C |
pwheels | 0:1193dbfe28e2 | 97 | |
pwheels | 0:1193dbfe28e2 | 98 | // Data/Command mode select bits |
pwheels | 0:1193dbfe28e2 | 99 | #define MODSEL_DATA 0x00 |
pwheels | 0:1193dbfe28e2 | 100 | #define MODSEL_COMMAND 0x02 |
pwheels | 0:1193dbfe28e2 | 101 | |
pwheels | 0:1193dbfe28e2 | 102 | // 5V Follow Pulse select bits (If 5V pulse |
pwheels | 0:1193dbfe28e2 | 103 | // will be following the next byte or bit.) |
pwheels | 0:1193dbfe28e2 | 104 | #define PRIME5V_TRUE 0x02 |
pwheels | 0:1193dbfe28e2 | 105 | #define PRIME5V_FALSE 0x00 |
pwheels | 0:1193dbfe28e2 | 106 | |
pwheels | 0:1193dbfe28e2 | 107 | // Parameter select bits |
pwheels | 0:1193dbfe28e2 | 108 | #define PARMSEL_PARMREAD 0x00 |
pwheels | 0:1193dbfe28e2 | 109 | #define PARMSEL_SLEW 0x10 |
pwheels | 0:1193dbfe28e2 | 110 | #define PARMSEL_12VPULSE 0x20 |
pwheels | 0:1193dbfe28e2 | 111 | #define PARMSEL_5VPULSE 0x30 |
pwheels | 0:1193dbfe28e2 | 112 | #define PARMSEL_WRITE1LOW 0x40 |
pwheels | 0:1193dbfe28e2 | 113 | #define PARMSEL_SAMPLEOFFSET 0x50 |
pwheels | 0:1193dbfe28e2 | 114 | #define PARMSEL_ACTIVEPULLUPTIME 0x60 |
pwheels | 0:1193dbfe28e2 | 115 | #define PARMSEL_BAUDRATE 0x70 |
pwheels | 0:1193dbfe28e2 | 116 | |
pwheels | 0:1193dbfe28e2 | 117 | // Pull down slew rate. |
pwheels | 0:1193dbfe28e2 | 118 | #define PARMSET_Slew15Vus 0x00 |
pwheels | 0:1193dbfe28e2 | 119 | #define PARMSET_Slew2p2Vus 0x02 |
pwheels | 0:1193dbfe28e2 | 120 | #define PARMSET_Slew1p65Vus 0x04 |
pwheels | 0:1193dbfe28e2 | 121 | #define PARMSET_Slew1p37Vus 0x06 |
pwheels | 0:1193dbfe28e2 | 122 | #define PARMSET_Slew1p1Vus 0x08 |
pwheels | 0:1193dbfe28e2 | 123 | #define PARMSET_Slew0p83Vus 0x0A |
pwheels | 0:1193dbfe28e2 | 124 | #define PARMSET_Slew0p7Vus 0x0C |
pwheels | 0:1193dbfe28e2 | 125 | #define PARMSET_Slew0p55Vus 0x0E |
pwheels | 0:1193dbfe28e2 | 126 | |
pwheels | 0:1193dbfe28e2 | 127 | // 12V programming pulse time table |
pwheels | 0:1193dbfe28e2 | 128 | #define PARMSET_32us 0x00 |
pwheels | 0:1193dbfe28e2 | 129 | #define PARMSET_64us 0x02 |
pwheels | 0:1193dbfe28e2 | 130 | #define PARMSET_128us 0x04 |
pwheels | 0:1193dbfe28e2 | 131 | #define PARMSET_256us 0x06 |
pwheels | 0:1193dbfe28e2 | 132 | #define PARMSET_512us 0x08 |
pwheels | 0:1193dbfe28e2 | 133 | #define PARMSET_1024us 0x0A |
pwheels | 0:1193dbfe28e2 | 134 | #define PARMSET_2048us 0x0C |
pwheels | 0:1193dbfe28e2 | 135 | #define PARMSET_infinite 0x0E |
pwheels | 0:1193dbfe28e2 | 136 | |
pwheels | 0:1193dbfe28e2 | 137 | // 5V strong pull up pulse time table |
pwheels | 0:1193dbfe28e2 | 138 | #define PARMSET_16p4ms 0x00 |
pwheels | 0:1193dbfe28e2 | 139 | #define PARMSET_65p5ms 0x02 |
pwheels | 0:1193dbfe28e2 | 140 | #define PARMSET_131ms 0x04 |
pwheels | 0:1193dbfe28e2 | 141 | #define PARMSET_262ms 0x06 |
pwheels | 0:1193dbfe28e2 | 142 | #define PARMSET_524ms 0x08 |
pwheels | 0:1193dbfe28e2 | 143 | #define PARMSET_1p05s 0x0A |
pwheels | 0:1193dbfe28e2 | 144 | #define PARMSET_2p10s 0x0C |
pwheels | 0:1193dbfe28e2 | 145 | #define PARMSET_infinite 0x0E |
pwheels | 0:1193dbfe28e2 | 146 | |
pwheels | 0:1193dbfe28e2 | 147 | // Write 1 low time |
pwheels | 0:1193dbfe28e2 | 148 | #define PARMSET_Write8us 0x00 |
pwheels | 0:1193dbfe28e2 | 149 | #define PARMSET_Write9us 0x02 |
pwheels | 0:1193dbfe28e2 | 150 | #define PARMSET_Write10us 0x04 |
pwheels | 0:1193dbfe28e2 | 151 | #define PARMSET_Write11us 0x06 |
pwheels | 0:1193dbfe28e2 | 152 | #define PARMSET_Write12us 0x08 |
pwheels | 0:1193dbfe28e2 | 153 | #define PARMSET_Write13us 0x0A |
pwheels | 0:1193dbfe28e2 | 154 | #define PARMSET_Write14us 0x0C |
pwheels | 0:1193dbfe28e2 | 155 | #define PARMSET_Write15us 0x0E |
pwheels | 0:1193dbfe28e2 | 156 | |
pwheels | 0:1193dbfe28e2 | 157 | // Data sample offset and Write 0 recovery time |
pwheels | 0:1193dbfe28e2 | 158 | #define PARMSET_SampOff3us 0x00 |
pwheels | 0:1193dbfe28e2 | 159 | #define PARMSET_SampOff4us 0x02 |
pwheels | 0:1193dbfe28e2 | 160 | #define PARMSET_SampOff5us 0x04 |
pwheels | 0:1193dbfe28e2 | 161 | #define PARMSET_SampOff6us 0x06 |
pwheels | 0:1193dbfe28e2 | 162 | #define PARMSET_SampOff7us 0x08 |
pwheels | 0:1193dbfe28e2 | 163 | #define PARMSET_SampOff8us 0x0A |
pwheels | 0:1193dbfe28e2 | 164 | #define PARMSET_SampOff9us 0x0C |
pwheels | 0:1193dbfe28e2 | 165 | #define PARMSET_SampOff10us 0x0E |
pwheels | 0:1193dbfe28e2 | 166 | |
pwheels | 0:1193dbfe28e2 | 167 | // Active pull up on time |
pwheels | 0:1193dbfe28e2 | 168 | #define PARMSET_PullUp0p0us 0x00 |
pwheels | 0:1193dbfe28e2 | 169 | #define PARMSET_PullUp0p5us 0x02 |
pwheels | 0:1193dbfe28e2 | 170 | #define PARMSET_PullUp1p0us 0x04 |
pwheels | 0:1193dbfe28e2 | 171 | #define PARMSET_PullUp1p5us 0x06 |
pwheels | 0:1193dbfe28e2 | 172 | #define PARMSET_PullUp2p0us 0x08 |
pwheels | 0:1193dbfe28e2 | 173 | #define PARMSET_PullUp2p5us 0x0A |
pwheels | 0:1193dbfe28e2 | 174 | #define PARMSET_PullUp3p0us 0x0C |
pwheels | 0:1193dbfe28e2 | 175 | #define PARMSET_PullUp3p5us 0x0E |
pwheels | 0:1193dbfe28e2 | 176 | |
pwheels | 0:1193dbfe28e2 | 177 | // Baud rate bits |
pwheels | 0:1193dbfe28e2 | 178 | #define PARMSET_9600 0x00 |
pwheels | 0:1193dbfe28e2 | 179 | #define PARMSET_19200 0x02 |
pwheels | 0:1193dbfe28e2 | 180 | #define PARMSET_57600 0x04 |
pwheels | 0:1193dbfe28e2 | 181 | #define PARMSET_115200 0x06 |
pwheels | 0:1193dbfe28e2 | 182 | |
pwheels | 0:1193dbfe28e2 | 183 | // Baud rate bits - Inverted Read |
pwheels | 0:1193dbfe28e2 | 184 | #define PARMSET_INV_9600 0x08 |
pwheels | 0:1193dbfe28e2 | 185 | #define PARMSET_INV_19200 0x0A |
pwheels | 0:1193dbfe28e2 | 186 | #define PARMSET_INV_57600 0x0C |
pwheels | 0:1193dbfe28e2 | 187 | #define PARMSET_INV_115200 0x0E |
pwheels | 0:1193dbfe28e2 | 188 | |
pwheels | 0:1193dbfe28e2 | 189 | |
pwheels | 0:1193dbfe28e2 | 190 | // DS2480B program voltage available |
pwheels | 0:1193dbfe28e2 | 191 | #define DS2480PROG_MASK 0x20 |
pwheels | 0:1193dbfe28e2 | 192 | |
pwheels | 0:1193dbfe28e2 | 193 | // mode bit flags |
pwheels | 0:1193dbfe28e2 | 194 | #define MODE_NORMAL 0x00 |
pwheels | 0:1193dbfe28e2 | 195 | #define MODE_OVERDRIVE 0x01 |
pwheels | 0:1193dbfe28e2 | 196 | #define MODE_STRONG5 0x02 |
pwheels | 0:1193dbfe28e2 | 197 | #define MODE_PROGRAM 0x04 |
pwheels | 0:1193dbfe28e2 | 198 | #define MODE_BREAK 0x08 |
pwheels | 0:1193dbfe28e2 | 199 | |
pwheels | 0:1193dbfe28e2 | 200 | // Versions of DS2480 |
pwheels | 0:1193dbfe28e2 | 201 | #define VER_LINK 0x1C |
pwheels | 0:1193dbfe28e2 | 202 | #define VER_DS2480 0x08 |
pwheels | 0:1193dbfe28e2 | 203 | #define VER_DS2480B 0x0C |
pwheels | 0:1193dbfe28e2 | 204 | |
pwheels | 0:1193dbfe28e2 | 205 | // exportable functions defined in ds2480ut.c |
pwheels | 0:1193dbfe28e2 | 206 | SMALLINT DS2480Detect(int portnum); |
pwheels | 0:1193dbfe28e2 | 207 | SMALLINT DS2480ChangeBaud(int portnum, uchar newbaud); |
pwheels | 0:1193dbfe28e2 | 208 | |
pwheels | 0:1193dbfe28e2 | 209 | // link functions from win32lnk.c or other link files |
pwheels | 0:1193dbfe28e2 | 210 | SMALLINT OpenCOM(int portnum, char *port_zstr); |
pwheels | 0:1193dbfe28e2 | 211 | int OpenCOMEx(char *port_zstr); |
pwheels | 0:1193dbfe28e2 | 212 | void CloseCOM(int portnum); |
pwheels | 0:1193dbfe28e2 | 213 | void FlushCOM(int portnum); |
pwheels | 0:1193dbfe28e2 | 214 | SMALLINT WriteCOM(int portnum, int outlen, uchar *outbuf); |
pwheels | 0:1193dbfe28e2 | 215 | int ReadCOM(int portnum, int inlen, uchar *inbuf); |
pwheels | 0:1193dbfe28e2 | 216 | void BreakCOM(int portnum); |
pwheels | 0:1193dbfe28e2 | 217 | void SetBaudCOM(int portnum, int new_baud); |
pwheels | 0:1193dbfe28e2 | 218 | |
pwheels | 0:1193dbfe28e2 | 219 | |
pwheels | 0:1193dbfe28e2 | 220 | #endif //DS2480_H |