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
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  17 //    includes software developed by tm3d.de and its contributors.
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  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
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  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 #ifdef _CHANGEABLE_ID_
 108         CHANGE_ID_COMMANDS
 109 #endif
 110         ldi r_mode,OW_SLEEP
 111         rjmp handle_end
 112
 113 hrc_set_readscratchpad1:
 114         ldi r_mode,OW_READ_SCRATCHPAD1
 115         ldi r_sendflag,1
 116         CRCInit2
 117         rjmp h_readscratchpad1
 118
 119 hrc_set_writescratchpad1:
 120         ldi r_mode,OW_WRITE_SCRATCHPAD1
 121         ldi r_bytep,2 ;start to write in 2
 122         rjmp handle_end
 123
 124 hrc_recall_eeprom1:
 125         rcall hrc_recall_eeprom_func1
 126         rjmp handle_end
 127
 128
 129
 130 hrc_set_convertT1:
 131         ldi r_temp,1
 132         sts gcontrol,r_temp
 133
 134         rjmp handle_end_sleep
 135
 136
 137 hrc_copy_scratchpad1:
 138         ldi r_bytep,2
 139         configZ pack1,r_bytep
 140         clr r_bytep
 141 hrc_copy_scratchpad_EEPROM_write1:
 142         sbic _SFR_IO_ADDR(EECR), EEPE
 143         rjmp hrc_copy_scratchpad_EEPROM_write1
 144         ldi r_temp, (0<<EEPM1)|(0<<EEPM0)
 145         out _SFR_IO_ADDR(EECR), r_temp
 146         ldi r_temp,0
 147         out _SFR_IO_ADDR(EEARH),r_temp
 148         out _SFR_IO_ADDR(EEARL), r_bytep
 149         ld  r_rwbyte,Z+
 150         out _SFR_IO_ADDR(EEDR), r_rwbyte
 151         sbi _SFR_IO_ADDR(EECR), EEMPE
 152         sbi _SFR_IO_ADDR(EECR), EEPE
 153         inc r_bytep
 154         cpi r_bytep,3
 155         brne hrc_copy_scratchpad_EEPROM_write1
 156         rjmp handle_end
 157
 158
 159 hrc_recall_eeprom_func1:
 160         ldi r_bytep,2
 161         configZ pack1,r_bytep
 162         clr r_bytep
 163         clr r_temp
 164 hrc_recall_eeprom_EEPROM_read1:
 165         sbic _SFR_IO_ADDR(EECR), EEPE
 166         rjmp hrc_recall_eeprom_EEPROM_read1
 167         out _SFR_IO_ADDR(EEARH), r_temp
 168         out _SFR_IO_ADDR(EEARL), r_bytep
 169         sbi _SFR_IO_ADDR(EECR), EERE
 170         in r_rwbyte,_SFR_IO_ADDR(EEDR)
 171         st Z+,r_rwbyte
 172         inc r_bytep
 173         cpi r_bytep,3
 174         brne hrc_recall_eeprom_EEPROM_read1
 175         ret
 176
 177
 178
 179
 180
 181
 182 ;---------------------------------------------------
 183 ;   READ SCRATCHPAD
 184 ;---------------------------------------------------
 185
 186 h_readscratchpad1:
 187         cpi  r_bytep,8
 188         breq h_readscratchpad_crc1
 189         cpi  r_bytep,9
 190         breq h_readscratchpad_all1
 191         configZ pack1,r_bytep
 192         ld   r_rwbyte,Z
 193         rjmp h_readscratchpad_endc1
 194 h_readscratchpad_crc1:
 195         lds  r_rwbyte,crc
 196 h_readscratchpad_endc1:
 197         inc  r_bytep
 198         ldi  r_bcount,1
 199         rjmp handle_end
 200 h_readscratchpad_all1:
 201         rjmp handle_end_sleep
 202
 203
 204
 205
 206
 207 ;---------------------------------------------------
 208 ;   WRITE SCRATCHPAD
 209 ;---------------------------------------------------
 210
 211 h_writescratchpad1:
 212         configZ pack1,r_bytep
 213         inc  r_bytep
 214         cpi  r_bytep,5
 215         breq h_writescratchpad_all1
 216         st   Z,r_rwbyte
 217         rjmp handle_end
 218 h_writescratchpad_all1:
 219         ori r_rwbyte,0x1F ; Alle unteren Bits sind immer 1
 220         st   Z,r_rwbyte
 221         rjmp handle_end_sleep
 222
 223 ;*****************************************************************************************************************************************************************************************
 224 ;*****************************************************************************************************************************************************************************************
 225 ;*****************************************************************************************************************************************************************************************
 226 ;*****************************************************************************************************************************************************************************************
 227 ;*****************************************************************************************************************************************************************************************
 228
 229
 230
 231
 232
 233 h_readcommand2:
 234         clr r_bytep
 235 #ifndef _DIS_FLASH_
 236         FLASH_COMMANDS ; muss zu erst sein....
 237 #endif
 238         cset 0xBE,OW_READ_SCRATCHPAD_ADR2
 239         cset 0x4E,OW_WRITE_SCRATCHPAD_ADR2
 240         cjmp 0x44,hrc_set_convertT2
 241         cjmp 0xB4,hrc_set_convertV2
 242 #ifdef _CHANGEABLE_ID_
 243         CHANGE_ID_COMMANDS
 244 #endif
 245         rjmp handle_end_sleep
 246
 247
 248 hrc_set_convertT2:
 249         ldi r_temp,2
 250         sts gcontrol,r_temp
 251         lds r_temp,am2302_temp
 252         sts pack2+1,r_temp
 253         lds r_temp,am2302_temp+1
 254         sts pack2+2,r_temp
 255         rjmp handle_end_sleep
 256 hrc_set_convertV2:
 257         lds r_temp,pack2
 258         sbrs r_temp,3
 259         rjmp hrc_set_convertVV2
 260         ldi r_temp,0xF4
 261         sts pack2+3,r_temp
 262         ldi r_temp,0x01
 263         sts pack2+4,r_temp
 264         rjmp hrc_set_convertend2
 265 hrc_set_convertVV2:
 266         ldi r_temp,3
 267         sts gcontrol,r_temp
 268         lds r_temp,am2302_hum
 269         sts pack2+3,r_temp
 270         lds r_temp,am2302_hum+1
 271         sts pack2+4,r_temp
 272 hrc_set_convertend2:
 273         rjmp handle_end_sleep
 274
 275
 276
 277 ;---------------------------------------------------
 278 ;   READ SCRATCHPAD
 279 ;---------------------------------------------------
 280
 281 h_readscratchpad_adr2:
 282         lsl r_rwbyte
 283         lsl r_rwbyte
 284         lsl r_rwbyte
 285 #if  defined(__AVR_ATtiny25__)
 286         andi r_rwbyte,0x01 ;nur Page 0 und 1 und das immer wiederholen
 287 #endif
 288         sts block,r_rwbyte
 289         ldi r_sendflag,1
 290         ldi r_mode,OW_READ_SCRATCHPAD2
 291         CRCInit2
 292 h_readscratchpad2:
 293         cpi  r_bytep,8
 294         breq h_readscratchpad_crc2
 295         cpi  r_bytep,9
 296         breq h_readscratchpad_all2
 297         lds  r_temp,block
 298         add  r_temp,r_bytep
 299         configZ pack2,r_temp
 300         ld   r_rwbyte,Z
 301         rjmp handle_end_inc
 302 h_readscratchpad_crc2:
 303         lds  r_rwbyte,crc
 304         rjmp handle_end_inc
 305 h_readscratchpad_all2:
 306         rjmp handle_end_sleep
 307
 308
 309
 310
 311 ;---------------------------------------------------
 312 ;   WRITE SCRATCHPAD
 313 ;---------------------------------------------------
 314 h_writescratchpad_adr2:
 315         lsl r_rwbyte
 316         lsl r_rwbyte
 317         lsl r_rwbyte
 318 #if  defined(__AVR_ATtiny25__)
 319         andi r_rwbyte,0x01 ;nur Page 0 und 1 und das immer wiederholen
 320 #endif
 321         sts block,r_rwbyte
 322         ldi r_mode,OW_WRITE_SCRATCHPAD2
 323         ldi  r_bcount,1
 324         rjmp handle_end
 325 h_writescratchpad2:
 326         cpi  r_bytep,8
 327         breq h_writescratchpad_all2
 328         lds  r_temp,block
 329         add  r_temp,r_bytep
 330         configZ pack2,r_temp
 331         st   Z,r_rwbyte
 332         rjmp handle_end_inc
 333 h_writescratchpad_all2:
 334         rjmp handle_end_sleep
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344 #include "../common/OWPinInterrupt.s"
 345 .end