📄 i2c.lst
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HI-TECH Software PICC Macro Assembler V8.05PL1
Serial number: HCPIC-80329 Thu Jul 19 15:11:23 2007
Licensed to: BOSS
1 processor 16F873A
2 opt pw 79
3 psect __Z80329RS_,global,delta=1
4 psect text10,local,class=CODE,delta=2
5 psect text12,local,class=CODE,delta=2
6 psect text13,local,class=CODE,delta=2
7 psect text15,local,class=CODE,delta=2
8 psect temp,global,ovrld,class=BANK0,space=1,de
+ lta=1
9 0000
10 0000
11 0000
12 0000
13 0000
14 0000
15 0000
16 0000
17 0000
18 0000
19
20 psect __Z80329RS_
21 00A0
22 00A0
23
24 psect text10
25 0370 _i2c_GetString
26 ; _str assigned to ?a_i2c_GetString+0
27 0000 _i2c_GetString$str set ?a_i2c_GetString
28 ; _byte assigned to ?a_i2c_GetString+1
29 0000 _i2c_GetString$byte set ?a_i2c_GetString+1
30 ;_str stored from w
31 0370 0183 clrf 3 ;select bank 0
32 0371 00C3 movwf ?a_i2c_GetString
33 ;i2c.c: 228: int byte;
34 0372 2B89 goto l75
35 0373 l76
36 ;i2c.c: 231: {
37 0373 0343 decf ?_i2c_GetString,w
38 0374 118A 2597 118A fcall _i2c_GetByte
39 0377 0856 movf btemp,w
40 0378 00C4 movwf ?a_i2c_GetString+1
41 0379 0857 movf btemp+1,w
42 037A 00C5 movwf ?a_i2c_GetString+2
43 037B 0A44 incf ?a_i2c_GetString+1,w
44 037C 1903 btfsc 3,2
45 037D 0A45 incf ?a_i2c_GetString+2,w
46 037E 1D03 btfss 3,2
47 037F 2B82 goto l78
48 ;i2c.c: 233: return number;
49 0380 0843 movf ?_i2c_GetString,w
50 0381 0008 return
51 0382 l78
52 ;i2c.c: 235: *str = (unsigned char)byte;
53 0382 0843 movf ?a_i2c_GetString,w
54 0383 0084 movwf 4
55 0384 1383 bcf 3,7
56 0385 0844 movf ?a_i2c_GetString+1,w
57 0386 0080 movwf 0
58 ;i2c.c: 236: str++;
59 0387 0AC3 incf ?a_i2c_GetString
60 ;i2c.c: 237: number--;
61 0388 03C3 decf ?_i2c_GetString
62 0389 l75
63 ;i2c.c: 238: }
64 0389 1283 bcf 3,5
65 038A 1303 bcf 3,6 ;carry unused
66 038B 08C3 movf ?_i2c_GetString
67 038C 1903 btfsc 3,2
68 ;i2c.c: 240: return 0;
69 038D 3400 retlw 0
70 038E 2B73 goto l76
71
72 psect text12
73 ;i2c.c: 265: unsigned char
74 ;i2c.c: 266: i2c_WaitForSCL(void)
75 ;i2c.c: 267: {
76 0487 _i2c_WaitForSCL
77 ; __dcnt assigned to ?a_i2c_WaitForSCL+0
78 0000 _i2c_WaitForSCL$_dcnt set ?a_i2c_WaitForSCL
79 ;i2c.c: 269: if(!RC1)
80 0487 0183 clrf 3 ;select bank 0
81 0488 1887 btfsc 7,1
82 0489 3400 retlw 0
83 ;i2c.c: 270: {
84 048A 300A movlw 10
85 048B 00C3 movwf ?a_i2c_WaitForSCL
86 048C l85
87 048C 0BC3 decfsz ?a_i2c_WaitForSCL
88 048D 2C8C goto l85
89 ;i2c.c: 273: if(!RC1)
90 048E 1C87 btfss 7,1
91 ;i2c.c: 274: return !0;
92 048F 3401 retlw 1
93 ;i2c.c: 276: return 0;
94 0490 3400 retlw 0
95 ;i2c.c: 63: unsigned char
96 ;i2c.c: 64: i2c_SendByte(unsigned char byte)
97 ;i2c.c: 65: {
98 0491 _i2c_SendByte
99 ; _byte assigned to ?a_i2c_SendByte+0
100 0000 _i2c_SendByte$byte set ?a_i2c_SendByte
101 ; _i assigned to ?a_i2c_SendByte+1
102 0000 _i2c_SendByte$i set ?a_i2c_SendByte+1
103 ; __dcnt assigned to ?a_i2c_SendByte+2
104 0000 _i2c_SendByte$_dcnt set ?a_i2c_SendByte+2
105 ; __dcnt assigned to ?a_i2c_SendByte+2
106 0000 _i2c_SendByte$_dcnt set ?a_i2c_SendByte+2
107 ;_byte stored from w
108 0491 0183 clrf 3 ;select bank 0
109 0492 00C3 movwf ?a_i2c_SendByte
110 ;i2c.c: 66: signed char i;
111 0493 3007 movlw 7
112 0494 00C4 movwf ?a_i2c_SendByte+1
113 0495 l22
114 ;i2c.c: 69: {
115 ;i2c.c: 70: RC1 = 0; TRISC1 = 0;
116 0495 1087 bcf 7,1
117 0496 1683 bsf 3,5
118 0497 1087 bcf 7,1
119 ;i2c.c: 73: TRISC0 = ((byte>>i)&0x01);
120 0498 1283 bcf 3,5
121 0499 0843 movf ?a_i2c_SendByte,w
122 049A 00D6 movwf btemp
123 049B 0844 movf ?a_i2c_SendByte+1,w
124 049C 00D7 movwf btemp+1
125 049D 0AD7 incf btemp+1
126 049E 2CA1 goto u74
127 049F u75
128 049F 1003 bcf 3,0
129 04A0 0CD6 rrf btemp
130 04A1 u74
131 04A1 0BD7 decfsz btemp+1
132 04A2 2C9F goto u75
133 04A3 0856 movf btemp,w
134 04A4 00D6 movwf btemp
135 04A5 0C56 rrf btemp,w
136 04A6 1683 bsf 3,5
137 04A7 1C03 btfss 3,0
138 04A8 2CAB goto L2
139 04A9 1407 bsf 7,0
140 04AA 2CAC goto u94
141 04AB L2
142 04AB 1007 bcf 7,0
143 04AC u94
144 ;i2c.c: 74: if ((byte>>i)&0x01) {
145 04AC 1283 bcf 3,5
146 04AD 1303 bcf 3,6 ;carry unused
147 04AE 0843 movf ?a_i2c_SendByte,w
148 04AF 00D6 movwf btemp
149 04B0 0844 movf ?a_i2c_SendByte+1,w
150 04B1 00D7 movwf btemp+1
151 04B2 0AD7 incf btemp+1
152 04B3 2CB6 goto u104
153 04B4 u105
154 04B4 1003 bcf 3,0
155 04B5 0CD6 rrf btemp
156 04B6 u104
157 04B6 0BD7 decfsz btemp+1
158 04B7 2CB4 goto u105
159 04B8 0856 movf btemp,w
160 04B9 00D6 movwf btemp
161 04BA 1C56 btfss btemp,0
162 04BB 2CBE goto l25
163 ;i2c.c: 75: RC0 = 1; TRISC0 = 0;
164 04BC 1407 bsf 7,0
165 04BD 2CBF goto L1
166 ;i2c.c: 76: }else {
167 04BE l25
168 ;i2c.c: 77: RC0 = 0; TRISC0 = 0;
169 04BE 1007 bcf 7,0
170 04BF L1
171 04BF 1683 bsf 3,5
172 04C0 1007 bcf 7,0
173 ;i2c.c: 78: }
174 ;i2c.c: 79: { unsigned char _dcnt; _dcnt = (1)*
+ ((20*1000L)/(12*1000L)); while(--_dcnt != 0) co
+ ntinue; };
175 04C1 1283 bcf 3,5
176 04C2 01C5 clrf ?a_i2c_SendByte+2
177 04C3 0AC5 incf ?a_i2c_SendByte+2
178 04C4 l28
179 04C4 0BC5 decfsz ?a_i2c_SendByte+2
180 04C5 2CC4 goto l28
181 ;i2c.c: 80: TRISC1 = 1;
182 04C6 1683 bsf 3,5
183 04C7 1487 bsf 7,1
184 ;i2c.c: 82: if(i2c_WaitForSCL())
185 04C8 2487 fcall _i2c_WaitForSCL
186 04C9 3800 iorlw 0
187 04CA 1D03 btfss 3,2
188 ;i2c.c: 83: return !0;
189 04CB 3401 retlw 1
190 ;i2c.c: 85: { unsigned char _dcnt; _dcnt = (4)*
+ ((20*1000L)/(12*1000L)); while(--_dcnt != 0) co
+ ntinue; };
191 04CC 3004 movlw 4
192 04CD 00C5 movwf ?a_i2c_SendByte+2
193 04CE l32
194 04CE 0BC5 decfsz ?a_i2c_SendByte+2
195 04CF 2CCE goto l32
196 ;i2c.c: 86: }
197 04D0 03C4 decf ?a_i2c_SendByte+1
198 04D1 1BC4 btfsc ?a_i2c_SendByte+1,7
199 ;i2c.c: 88: return 0;
200 04D2 3400 retlw 0
201 04D3 2C95 goto l22
202 ;i2c.c: 106: signed char
203 ;i2c.c: 107: i2c_ReadAcknowledge(void)
204 ;i2c.c: 108: {
205 04D4 _i2c_ReadAcknowledge
206 ; _ack assigned to ?a_i2c_ReadAcknowledge+0
207 0000 _i2c_ReadAcknowledge$ack set ?a_i2c_ReadAcknowl
+ edge
208 ; __dcnt assigned to ?a_i2c_ReadAcknowledge+1
209 0000 _i2c_ReadAcknowledge$_dcnt set ?a_i2c_ReadAckno
+ wledge+1
210 ; __dcnt assigned to ?a_i2c_ReadAcknowledge+1
211 0000 _i2c_ReadAcknowledge$_dcnt set ?a_i2c_ReadAckno
+ wledge+1
212 ;i2c.c: 109: unsigned char ack;
213 04D4 0183 clrf 3 ;select bank 0
214 04D5 1087 bcf 7,1
215 04D6 1683 bsf 3,5
216 04D7 1087 bcf 7,1
217 ;i2c.c: 112: TRISC0 = 1;
218 04D8 1407 bsf 7,0
219 ;i2c.c: 113: { unsigned char _dcnt; _dcnt = (2)
+ *((20*1000L)/(12*1000L)); while(--_dcnt != 0) c
+ ontinue; };
220 04D9 3002 movlw 2
221 04DA 1283 bcf 3,5
222 04DB 00C4 movwf ?a_i2c_ReadAcknowledge+1
223 04DC l36
224 04DC 0BC4 decfsz ?a_i2c_ReadAcknowledge+1
225 04DD 2CDC goto l36
226 ;i2c.c: 114: TRISC1 = 1;
227 04DE 1683 bsf 3,5
228 04DF 1487 bsf 7,1
229 ;i2c.c: 115: { unsigned char _dcnt; _dcnt = (1)
+ *((20*1000L)/(12*1000L)); while(--_dcnt != 0) c
+ ontinue; };
230 04E0 1283 bcf 3,5
231 04E1 01C4 clrf ?a_i2c_ReadAcknowledge+1
232 04E2 0AC4 incf ?a_i2c_ReadAcknowledge+1
233 04E3 l40
234 04E3 0BC4 decfsz ?a_i2c_ReadAcknowledge+1
235 04E4 2CE3 goto l40
236 ;i2c.c: 116: ack = RC0;
237 04E5 3000 movlw 0
238 04E6 1807 btfsc 7,0
239 04E7 3001 movlw 1
240 04E8 00C3 movwf ?a_i2c_ReadAcknowledge
241 ;i2c.c: 119: if(i2c_WaitForSCL())
242 04E9 2487 fcall _i2c_WaitForSCL
243 04EA 3800 iorlw 0
244 04EB 1D03 btfss 3,2
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