DS2423/OWDS2423.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 #include "../common/OWConfig.s"
  36 #include "../common/OWCRC16.s"
  37
  38 .extern pack,45
  39 .extern counters,8
  40
  41 .macro CHIP_INIT
  42 .endm
  43
  44 .macro COMMAND_TABLE
  45                 rjmp h_writescratchpad
  46                 rjmp h_writescratchpad_crc
  47                 rjmp h_readscratchpad
  48                 rjmp h_copyscratchpad
  49                 rjmp h_readmemory_addr
  50                 rjmp h_readmemory
  51                 rjmp h_readmemorycounter_addr
  52                 rjmp h_readmemorycounter
  53                 rjmp h_readmemorycounter_ex
  54 .endm
  55
  56 #include "../common/OWRomFunctions.s"
  57 #include "../common/OWTimerInterrupt.s"
  58
  59
  60
  61 ; Ab hier Geraeteabhaenging
  62 #define OW_WRITE_SCRATCHPAD OW_FIRST_COMMAND+0
  63 #define OW_WRITE_SCRATCHPAD_CRC OW_FIRST_COMMAND+1
  64 #define OW_READ_SCRATCHPAD OW_FIRST_COMMAND+2
  65 #define OW_COPY_SCRATCHPAD OW_FIRST_COMMAND+3
  66 #define OW_READ_MEMORY_ADDR OW_FIRST_COMMAND+4
  67 #define OW_READ_MEMORY OW_FIRST_COMMAND+5
  68 #define OW_READ_MEMORYCOUNTER_ADDR OW_FIRST_COMMAND+6
  69 #define OW_READ_MEMORYCOUNTER OW_FIRST_COMMAND+7
  70 #define OW_READ_MEMORYCOUNTER_EX OW_FIRST_COMMAND+8
  71
  72 ;---------------------------------------------------
  73 ;       READ COMMAND and start operation
  74 ;---------------------------------------------------
  75
  76
  77 h_readcommand:
  78         clr r_bytep
  79 #ifndef _DIS_FLASH_
  80         FLASH_COMMANDS ; muss zu erst sein....
  81 #endif
  82         cset 0x0F,OW_WRITE_SCRATCHPAD
  83         cjmp 0xAA,hrc_set_readscratchpad
  84         cset 0x5A,OW_COPY_SCRATCHPAD
  85         cset 0xF0,OW_READ_MEMORY_ADDR
  86         cset 0xA5,OW_READ_MEMORYCOUNTER_ADDR
  87 #ifdef _CHANGEABLE_ID_
  88         CHANGE_ID_COMMANDS
  89 #endif
  90         ldi r_mode,OW_SLEEP
  91         rjmp handle_end
  92
  93 hrc_set_readscratchpad:
  94         ldi r_mode,OW_READ_SCRATCHPAD
  95         ldi r_sendflag,1
  96         rjmp h_readscratchpad
  97
  98 h_writescratchpad:
  99         configZ pack,r_bytep
 100         inc  r_bytep
 101         st   Z,r_rwbyte
 102         cpi  r_bytep,2
 103         breq h_writescratchpad_block
 104         brsh h_writescratchpad_set_eoffset ;;33
 105         rjmp handle_end  ;handle_end zu weit entfernt fuer br...
 106 h_writescratchpad_set_eoffset:
 107         cpi  r_bytep,35
 108         breq h_writescratchpad_setcrc
 109         mov r_temp,r_bytep
 110         subi r_temp,4
 111         sts pack+2,r_temp ;AA und PF cleared
 112         rjmp handle_end
 113 ;Start writeing to 32 Byte Block ; skip status byte
 114 h_writescratchpad_block:
 115         lds r_temp,pack ; Adresse low byte
 116         andi r_temp,0x1F ;32 byte
 117         add r_bytep,r_temp ;Zur angegebenen Startadresse springen
 118         ;ori r_temp,0x20 ; Set PF flag
 119         sts pack+2,r_temp  ;E4:E0 vorher setzen
 120         ; Byte 3 ueberspringen
 121         rjmp handle_end_inc
 122
 123 h_writescratchpad_setcrc:
 124         ;copy crc to pack
 125         lds r_temp,crc
 126         com r_temp
 127         sts pack+43,r_temp
 128         lds r_temp,crc+1
 129         com r_temp ; invertieren , komischer name.....
 130         sts pack+44,r_temp
 131         ldi  r_mode,OW_WRITE_SCRATCHPAD_CRC
 132         ldi r_sendflag,1
 133         ldi r_bytep,43
 134 h_writescratchpad_crc:
 135         cpi r_bytep,45
 136         breq h_writescratchpad_crc_end
 137         configZ pack,r_bytep
 138         ld r_rwbyte,Z
 139         rjmp handle_end_inc
 140 h_writescratchpad_crc_end:
 141         rjmp handle_end_sleep
 142
 143
 144 h_readscratchpad:
 145         cpi r_bytep,35
 146         breq h_readscratchpad_end
 147         cpi r_bytep,3
 148         brne h_readscratchpad_read_byte
 149 h_readscratchpad_set_offset:
 150         lds r_temp,pack
 151         andi r_temp,0x1F
 152         ldi r_temp2,3
 153         add r_temp,r_temp2
 154         mov r_bytep,r_temp
 155 h_readscratchpad_read_byte:
 156         configZ pack,r_bytep
 157         ld r_rwbyte,Z
 158         rjmp handle_end_inc
 159 h_readscratchpad_end:
 160         rjmp handle_end_sleep
 161
 162
 163
 164 h_copyscratchpad:
 165         cpi  r_bytep,3
 166         brsh h_copyscratchpad_ok
 167         configZ pack,r_bytep
 168         inc  r_bytep
 169         ld   r_temp,Z
 170         cp r_temp,r_rwbyte
 171         brne h_copyscratchpad_nok
 172         cpi  r_bytep,3
 173         breq h_copyscratchpad_ok
 174         ldi  r_bcount,1
 175         rjmp handle_end
 176 h_copyscratchpad_ok:
 177         ldi r_rwbyte,0xAA
 178         ldi r_sendflag,1
 179         rjmp handle_end
 180 h_copyscratchpad_nok:
 181         lds r_temp,pack+3
 182         andi r_temp,~0x80
 183         sts pack+3,r_temp
 184         rjmp handle_end_sleep
 185
 186
 187 h_readmemory_addr:
 188         cpi r_bytep,0
 189         brne h_readmrmory_addr_byte1
 190         sts pack,r_rwbyte
 191         rjmp handle_end_inc
 192 h_readmrmory_addr_byte1:
 193         sts pack+1,r_rwbyte
 194         ldi r_mode,OW_READ_MEMORY
 195         ldi r_sendflag,1
 196         clr r_bytep
 197         rjmp h_readmemory2
 198 h_readmemory:
 199         lds r_bytep,pack
 200         lds r_temp2,pack+1
 201         inc r_bytep
 202         clr r_temp
 203         adc r_temp2,r_temp
 204         sbrc r_temp2,1
 205         rjmp h_readmemory_end
 206         sts pack+1,r_temp
 207         sts pack,r_bytep
 208 h_readmemory2:
 209         lds r_bytep,pack
 210         andi r_bytep,0x1F
 211         configZ pack+3,r_bytep
 212         ld   r_rwbyte,Z
 213         rjmp handle_end
 214 h_readmemory_end:
 215         rjmp handle_end_sleep
 216
 217
 218
 219
 220
 221
 222
 223
 224 h_readmemorycounter_addr:
 225         cpi r_bytep,0
 226         brne h_readmrmorycounter_addr_byte1
 227         sts pack,r_rwbyte
 228         inc r_bytep
 229         ;ldi r_bcount,1
 230         rjmp handle_end
 231 h_readmrmorycounter_addr_byte1:
 232         sts pack+1,r_rwbyte
 233         ldi r_mode,OW_READ_MEMORYCOUNTER
 234         ;ldi r_bcount,1
 235         ldi r_sendflag,1
 236         clr r_bytep
 237         rjmp h_readmemorycounter2
 238 h_readmemorycounter:
 239         lds r_bytep,pack
 240         lds r_temp2,pack+1
 241         ldi r_temp,1  ;inc leider kein c flag
 242         add r_bytep,r_temp
 243         clr r_temp
 244         adc r_temp2,r_temp
 245         mov r_temp,r_bytep
 246         andi r_temp,0x1F
 247         breq h_readmemorycounter_next
 248         sts pack+1,r_temp2
 249         sts pack,r_bytep
 250 h_readmemorycounter2:  ;Lesen von dem worauf die erstenzwei bytes zeigen
 251         lds r_bytep,pack
 252         andi r_bytep,0x1F
 253         configZ pack+3,r_bytep
 254         ld   r_rwbyte,Z
 255         ;ldi r_bcount,1
 256         rjmp handle_end
 257 //h_readmemorycounter_end:
 258 //      ldi  r_mode,OW_SLEEP
 259 //      clr r_sendflag
 260 //      rjmp handle_end
 261 h_readmemorycounter_next:  ; rest lesen
 262         ldi  r_mode,OW_READ_MEMORYCOUNTER_EX
 263         ldi r_bytep,34
 264         lds r_temp2,pack
 265         lds r_temp,pack+1
 266         //lsr r_temp
 267         //ror r_temp2
 268
 269         lsl r_temp2
 270         rol r_temp
 271         cpi r_temp,3
 272         brne h_readmemorycounter_cFF
 273         andi r_temp2,0xC0
 274         swap r_temp2
 275
 276         ;cpi r_temp,0xE0
 277
 278         configZ counters,r_temp2
 279         ld r_temp,Z+
 280         sts pack+35,r_temp
 281         ld r_temp,Z+
 282         sts pack+36,r_temp
 283         ld r_temp,Z+
 284         sts pack+37,r_temp
 285         ld r_temp,Z+
 286         sts pack+38,r_temp
 287         rjmp h_readmemorycounter_ex
 288 h_readmemorycounter_cFF:
 289         ldi r_temp,0xFF
 290         sts pack+35,r_temp
 291         sts pack+36,r_temp
 292         sts pack+37,r_temp
 293         sts pack+38,r_temp
 294
 295 h_readmemorycounter_ex:
 296         inc r_bytep
 297         cpi r_bytep,45
 298         breq h_readmemorycounter_ex_end
 299         cpi r_bytep,43
 300         brne h_readmemorycounter_ex2
 301         lds r_temp,crc
 302         com r_temp
 303         sts pack+43,r_temp
 304         lds r_temp,crc+1
 305         com r_temp
 306         sts pack+44,r_temp
 307 h_readmemorycounter_ex2:
 308         ;ldi r_bcount,1
 309         configZ pack,r_bytep
 310         ld   r_rwbyte,Z
 311         rjmp handle_end
 312 h_readmemorycounter_ex_end:
 313         lds r_bytep,pack
 314         lds r_temp2,pack+1
 315         ldi r_temp,1  ;inc leider kein c flag
 316         add r_bytep,r_temp
 317         clr r_temp
 318         adc r_temp2,r_temp
 319         sbrc r_temp2,1 ;am ene von allem
 320         rjmp h_readmemorycounter_ex_sleep
 321         CRCInit1
 322         ldi  r_mode,OW_READ_MEMORYCOUNTER
 323         sts pack+1,r_temp2
 324         sts pack,r_bytep
 325         rjmp h_readmemorycounter2
 326 h_readmemorycounter_ex_sleep:
 327         ldi r_mode,OW_SLEEP
 328         clr r_sendflag
 329         rjmp handle_end
 330
 331
 332
 333
 334
 335 #include "../common/OWPinInterrupt.s"
 336 .end