DS18B20_DS2438/OWDS18B20_DS2438.S

   1
   2 // Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de
   3 // All rights reserved.
   4 //
   5 // Redistribution and use in source and binary forms, with or without
   6 // modification, are permitted provided that the following conditions are
   7 // met:
   8 //
   9 //  * Redistributions of source code must retain the above copyright
  10 //    notice, this list of conditions and the following disclaimer.
  11 //  * Redistributions in binary form must reproduce the above copyright
  12 //    notice, this list of conditions and the following disclaimer in the
  13 //    documentation and/or other materials provided with the
  14 //    distribution.
  15 //  * All advertising materials mentioning features or use of this
  16 //    software must display the following acknowledgement: This product
  17 //    includes software developed by tm3d.de and its contributors.
  18 //  * Neither the name of tm3d.de nor the names of its contributors may
  19 //    be used to endorse or promote products derived from this software
  20 //    without specific prior written permission.
  21 //
  22 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  24 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  25 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  26 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  27 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  28 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  30 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  31 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  32 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33
  34 #define _CHANGEABLE_ID_
  35 #define _ZERO_POLLING_
  36 #define _DB_
  37
  38 #include "../common/OWConfig.s"
  39 #include "../common/OWCRC8.s"
  40
  41 .extern pack1,8
  42
  43 //.extern  am2302_temp,2
  44
  45 #if  defined(__AVR_ATtiny25__)
  46 .extern pack2,16
  47 #else
  48 .extern pack2,64
  49 #endif
  50 .extern  am2302_temp,2
  51 .extern  am2302_hum,2
  52 .comm block,1 ; Block der augegeben, geschrieben wird (Parameter von READ/WRITE Scratchpad)
  53
  54
  55 .macro CHIP_INIT
  56 Init_EEPROM_read:
  57         sbic _SFR_IO_ADDR(EECR), EEPE
  58         rjmp Init_EEPROM_read
  59         ldi r_temp,0
  60         out _SFR_IO_ADDR(EEARH), r_temp
  61         ldi r_temp,2
  62         out _SFR_IO_ADDR(EEARL), r_temp
  63         sbi _SFR_IO_ADDR(EECR), EERE
  64         in r_temp,_SFR_IO_ADDR(EEDR)
  65         sbrs r_temp,7
  66         rcall hrc_recall_eeprom_func1
  67 .endm
  68
  69 .macro COMMAND_TABLE
  70                 rjmp h_readscratchpad1
  71                 rjmp h_writescratchpad1
  72                 rjmp h_readscratchpad_adr2
  73                 rjmp h_readscratchpad2
  74                 rjmp h_writescratchpad_adr2
  75                 rjmp h_writescratchpad2
  76 .endm
  77
  78 #include "../common/OWRomFunctionsDual.s"
  79 #include "../common/OWTimerInterrupt.s"
  80
  81
  82
  83 ; Ab hier Geraeteabhaenging
  84 #define OW_READ_SCRATCHPAD1 OW_FIRST_COMMAND+0
  85 #define OW_WRITE_SCRATCHPAD1 OW_FIRST_COMMAND+1
  86 #define OW_READ_SCRATCHPAD_ADR2 OW_FIRST_COMMAND+2
  87 #define OW_READ_SCRATCHPAD2 OW_FIRST_COMMAND+3
  88 #define OW_WRITE_SCRATCHPAD_ADR2 OW_FIRST_COMMAND+4
  89 #define OW_WRITE_SCRATCHPAD2 OW_FIRST_COMMAND+5
  90
  91
  92 ;---------------------------------------------------
  93 ;       READ COMMAND and start operation
  94 ;---------------------------------------------------
  95
  96
  97 h_readcommand1:
  98         clr r_bytep
  99 #ifndef _DIS_FLASH_
 100         FLASH_COMMANDS ; muss zu erst sein....
 101 #endif
 102         cjmp 0xBE,hrc_set_readscratchpad1
 103         cjmp 0x4E,hrc_set_writescratchpad1
 104         cjmp 0x44,hrc_set_convertT1
 105         cjmp 0x48,hrc_copy_scratchpad1
 106         cjmp 0xB8,hrc_recall_eeprom1
 107         FW_CONFIG_INFO1
 108 #ifdef _CHANGEABLE_ID_
 109         CHANGE_ID_COMMANDS
 110 #endif
 111         ldi r_mode,OW_SLEEP
 112         rjmp handle_end
 113
 114 hrc_set_readscratchpad1:
 115         ldi r_mode,OW_READ_SCRATCHPAD1
 116         ldi r_sendflag,1
 117         CRCInit2
 118         rjmp h_readscratchpad1
 119
 120 hrc_set_writescratchpad1:
 121         ldi r_mode,OW_WRITE_SCRATCHPAD1
 122         ldi r_bytep,2 ;start to write in 2
 123         rjmp handle_end
 124
 125 hrc_recall_eeprom1:
 126         rcall hrc_recall_eeprom_func1
 127         rjmp handle_end
 128
 129
 130
 131 hrc_set_convertT1:
 132         ldi r_temp,1
 133         sts gcontrol,r_temp
 134
 135         rjmp handle_end_sleep
 136
 137
 138 hrc_copy_scratchpad1:
 139         ldi r_bytep,2
 140         configZ pack1,r_bytep
 141         clr r_bytep
 142 hrc_copy_scratchpad_EEPROM_write1:
 143         sbic _SFR_IO_ADDR(EECR), EEPE
 144         rjmp hrc_copy_scratchpad_EEPROM_write1
 145         ldi r_temp, (0<<EEPM1)|(0<<EEPM0)
 146         out _SFR_IO_ADDR(EECR), r_temp
 147         ldi r_temp,0
 148         out _SFR_IO_ADDR(EEARH),r_temp
 149         out _SFR_IO_ADDR(EEARL), r_bytep
 150         ld  r_rwbyte,Z+
 151         out _SFR_IO_ADDR(EEDR), r_rwbyte
 152         sbi _SFR_IO_ADDR(EECR), EEMPE
 153         sbi _SFR_IO_ADDR(EECR), EEPE
 154         inc r_bytep
 155         cpi r_bytep,3
 156         brne hrc_copy_scratchpad_EEPROM_write1
 157         rjmp handle_end
 158
 159
 160 hrc_recall_eeprom_func1:
 161         ldi r_bytep,2
 162         configZ pack1,r_bytep
 163         clr r_bytep
 164         clr r_temp
 165 hrc_recall_eeprom_EEPROM_read1:
 166         sbic _SFR_IO_ADDR(EECR), EEPE
 167         rjmp hrc_recall_eeprom_EEPROM_read1
 168         out _SFR_IO_ADDR(EEARH), r_temp
 169         out _SFR_IO_ADDR(EEARL), r_bytep
 170         sbi _SFR_IO_ADDR(EECR), EERE
 171         in r_rwbyte,_SFR_IO_ADDR(EEDR)
 172         st Z+,r_rwbyte
 173         inc r_bytep
 174         cpi r_bytep,3
 175         brne hrc_recall_eeprom_EEPROM_read1
 176         ret
 177
 178
 179
 180
 181
 182
 183 ;---------------------------------------------------
 184 ;   READ SCRATCHPAD
 185 ;---------------------------------------------------
 186
 187 h_readscratchpad1:
 188         cpi  r_bytep,8
 189         breq h_readscratchpad_crc1
 190         cpi  r_bytep,9
 191         breq h_readscratchpad_all1
 192         configZ pack1,r_bytep
 193         ld   r_rwbyte,Z
 194         rjmp h_readscratchpad_endc1
 195 h_readscratchpad_crc1:
 196         lds  r_rwbyte,crc
 197 h_readscratchpad_endc1:
 198         inc  r_bytep
 199         ldi  r_bcount,1
 200         rjmp handle_end
 201 h_readscratchpad_all1:
 202         rjmp handle_end_sleep
 203
 204
 205
 206
 207
 208 ;---------------------------------------------------
 209 ;   WRITE SCRATCHPAD
 210 ;---------------------------------------------------
 211
 212 h_writescratchpad1:
 213         configZ pack1,r_bytep
 214         inc  r_bytep
 215         cpi  r_bytep,5
 216         breq h_writescratchpad_all1
 217         st   Z,r_rwbyte
 218         rjmp handle_end
 219 h_writescratchpad_all1:
 220         ori r_rwbyte,0x1F ; Alle unteren Bits sind immer 1
 221         st   Z,r_rwbyte
 222         rjmp handle_end_sleep
 223
 224 ;*****************************************************************************************************************************************************************************************
 225 ;*****************************************************************************************************************************************************************************************
 226 ;*****************************************************************************************************************************************************************************************
 227 ;*****************************************************************************************************************************************************************************************
 228 ;*****************************************************************************************************************************************************************************************
 229
 230
 231
 232
 233
 234 h_readcommand2:
 235         clr r_bytep
 236 #ifndef _DIS_FLASH_
 237         FLASH_COMMANDS ; muss zu erst sein....
 238 #endif
 239         cset 0xBE,OW_READ_SCRATCHPAD_ADR2
 240         cset 0x4E,OW_WRITE_SCRATCHPAD_ADR2
 241         cjmp 0x44,hrc_set_convertT2
 242         cjmp 0xB4,hrc_set_convertV2
 243         FW_CONFIG_INFO2
 244 #ifdef _CHANGEABLE_ID_
 245         CHANGE_ID_COMMANDS
 246 #endif
 247         rjmp handle_end_sleep
 248
 249
 250 hrc_set_convertT2:
 251         ldi r_temp,2
 252         sts gcontrol,r_temp
 253         lds r_temp,am2302_temp
 254         sts pack2+1,r_temp
 255         lds r_temp,am2302_temp+1
 256         sts pack2+2,r_temp
 257         rjmp handle_end_sleep
 258 hrc_set_convertV2:
 259         lds r_temp,pack2
 260         sbrs r_temp,3
 261         rjmp hrc_set_convertVV2
 262         ldi r_temp,0xF4
 263         sts pack2+3,r_temp
 264         ldi r_temp,0x01
 265         sts pack2+4,r_temp
 266         rjmp hrc_set_convertend2
 267 hrc_set_convertVV2:
 268         ldi r_temp,3
 269         sts gcontrol,r_temp
 270         lds r_temp,am2302_hum
 271         sts pack2+3,r_temp
 272         lds r_temp,am2302_hum+1
 273         sts pack2+4,r_temp
 274 hrc_set_convertend2:
 275         rjmp handle_end_sleep
 276
 277
 278
 279 ;---------------------------------------------------
 280 ;   READ SCRATCHPAD
 281 ;---------------------------------------------------
 282
 283 h_readscratchpad_adr2:
 284         lsl r_rwbyte
 285         lsl r_rwbyte
 286         lsl r_rwbyte
 287 #if  defined(__AVR_ATtiny25__)
 288         andi r_rwbyte,0x01 ;nur Page 0 und 1 und das immer wiederholen
 289 #endif
 290         sts block,r_rwbyte
 291         ldi r_sendflag,1
 292         ldi r_mode,OW_READ_SCRATCHPAD2
 293         CRCInit2
 294 h_readscratchpad2:
 295         cpi  r_bytep,8
 296         breq h_readscratchpad_crc2
 297         cpi  r_bytep,9
 298         breq h_readscratchpad_all2
 299         lds  r_temp,block
 300         add  r_temp,r_bytep
 301         configZ pack2,r_temp
 302         ld   r_rwbyte,Z
 303         rjmp handle_end_inc
 304 h_readscratchpad_crc2:
 305         lds  r_rwbyte,crc
 306         rjmp handle_end_inc
 307 h_readscratchpad_all2:
 308         rjmp handle_end_sleep
 309
 310
 311
 312
 313 ;---------------------------------------------------
 314 ;   WRITE SCRATCHPAD
 315 ;---------------------------------------------------
 316 h_writescratchpad_adr2:
 317         lsl r_rwbyte
 318         lsl r_rwbyte
 319         lsl r_rwbyte
 320 #if  defined(__AVR_ATtiny25__)
 321         andi r_rwbyte,0x01 ;nur Page 0 und 1 und das immer wiederholen
 322 #endif
 323         sts block,r_rwbyte
 324         ldi r_mode,OW_WRITE_SCRATCHPAD2
 325         ldi  r_bcount,1
 326         rjmp handle_end
 327 h_writescratchpad2:
 328         cpi  r_bytep,8
 329         breq h_writescratchpad_all2
 330         lds  r_temp,block
 331         add  r_temp,r_bytep
 332         configZ pack2,r_temp
 333         st   Z,r_rwbyte
 334         rjmp handle_end_inc
 335 h_writescratchpad_all2:
 336         rjmp handle_end_sleep
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346 #include "../common/OWPinInterrupt.s"
 347 .end