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