2 // Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de
3 // All rights reserved.
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are
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
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.
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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29 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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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.
34 #define _CHANGEABLE_ID_
35 #include "../common/OWConfig.s"
36 #include "../common/OWCRC16.s"
45 rjmp h_writescratchpad
46 rjmp h_writescratchpad_crc
49 rjmp h_readmemory_addr
51 rjmp h_readmemorycounter_addr
52 rjmp h_readmemorycounter
53 rjmp h_readmemorycounter_ex
56 #include "../common/OWRomFunctions.s"
57 #include "../common/OWTimerInterrupt.s"
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
72 ;---------------------------------------------------
73 ; READ COMMAND and start operation
74 ;---------------------------------------------------
80 FLASH_COMMANDS ; muss zu erst sein....
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_
93 hrc_set_readscratchpad:
94 ldi r_mode,OW_READ_SCRATCHPAD
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:
108 breq h_writescratchpad_setcrc
111 sts pack+2,r_temp ;AA und PF cleared
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
123 h_writescratchpad_setcrc:
129 com r_temp ; invertieren , komischer name.....
131 ldi r_mode,OW_WRITE_SCRATCHPAD_CRC
134 h_writescratchpad_crc:
136 breq h_writescratchpad_crc_end
140 h_writescratchpad_crc_end:
141 rjmp handle_end_sleep
146 breq h_readscratchpad_end
148 brne h_readscratchpad_read_byte
149 h_readscratchpad_set_offset:
155 h_readscratchpad_read_byte:
159 h_readscratchpad_end:
160 rjmp handle_end_sleep
166 brsh h_copyscratchpad_ok
171 brne h_copyscratchpad_nok
173 breq h_copyscratchpad_ok
180 h_copyscratchpad_nok:
184 rjmp handle_end_sleep
189 brne h_readmrmory_addr_byte1
192 h_readmrmory_addr_byte1:
194 ldi r_mode,OW_READ_MEMORY
205 rjmp h_readmemory_end
211 configZ pack+3,r_bytep
215 rjmp handle_end_sleep
224 h_readmemorycounter_addr:
226 brne h_readmrmorycounter_addr_byte1
231 h_readmrmorycounter_addr_byte1:
233 ldi r_mode,OW_READ_MEMORYCOUNTER
237 rjmp h_readmemorycounter2
241 ldi r_temp,1 ;inc leider kein c flag
247 breq h_readmemorycounter_next
250 h_readmemorycounter2: ;Lesen von dem worauf die erstenzwei bytes zeigen
253 configZ pack+3,r_bytep
257 //h_readmemorycounter_end:
258 // ldi r_mode,OW_SLEEP
261 h_readmemorycounter_next: ; rest lesen
262 ldi r_mode,OW_READ_MEMORYCOUNTER_EX
272 brne h_readmemorycounter_cFF
278 configZ counters,r_temp2
287 rjmp h_readmemorycounter_ex
288 h_readmemorycounter_cFF:
295 h_readmemorycounter_ex:
298 breq h_readmemorycounter_ex_end
300 brne h_readmemorycounter_ex2
307 h_readmemorycounter_ex2:
312 h_readmemorycounter_ex_end:
315 ldi r_temp,1 ;inc leider kein c flag
319 sbrc r_temp2,1 ;am ene von allem
320 rjmp h_readmemorycounter_ex_sleep
322 ldi r_mode,OW_READ_MEMORYCOUNTER
325 rjmp h_readmemorycounter2
326 h_readmemorycounter_ex_sleep:
335 #include "../common/OWPinInterrupt.s"