📄 irint.lst
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C51 COMPILER V7.06 IRINT 01/12/2005 17:37:54 PAGE 1
C51 COMPILER V7.06, COMPILATION OF MODULE IRINT
OBJECT MODULE PLACED IN IrInt.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE IrInt.c BROWSE DEBUG OBJECTEXTEND
stmt level source
1 //#ifdef INTERRUPT1
2 #include "reg51.h"
3 #include <intrins.h>
4 #include "Remote.h"
5
6 bit ir_enable;
7 uCHAR ir_data;
*** ERROR C129 IN LINE 7 OF IRINT.C: missing ';' before 'ir_data'
8
9 bit Filter13(bit le)
10 {
11 bit r;
12 r=INT1;
13 if(le==1)
14 {
15 _nop_();
16 _nop_();
17 _nop_();
18 r&=INT1;
19 _nop_();
20 _nop_();
21 _nop_();
22 r&=INT1;
23 }
24 else
25 {
26 _nop_();
27 _nop_();
28 _nop_();
29 r|=INT1;
30 _nop_();
31 _nop_();
32 _nop_();
33 r|=INT1;
34 }
35 if(r==le)
36 return 1;
37 else
38 return 0;
39 }
40 /*遥控接收在此中断程序内完成
41 数据放在ir_data内*/
42 /************************************/
43 /* Interrupt for IR subroutine */
44 /* external interrupt source INT0 */
45 /************************************/
46 void int1Remote(void) interrupt 2
47 {
48 /* static uWORD IR_HEAD=20000;// = (XCLK_MCU*3/4);//10738//9000//7500
49 static uWORD OFF_CODE=10000;// = (IR_HEAD/2);//5369//4500//3750
50 uWORD OFF_REP;// = (IR_HEAD/4);//2684//2250// 1875
51 uWORD REP_CODE;// = (IR_HEAD/16);//667//467
52 uWORD DELTA ;// = 300;//250
53 uWORD CODE_0_TIME;//= (IR_HEAD/16);//667//557//467
54 uWORD CODE_1_TIME;//= (CODE_0_TIME*3);//2000//1670//1400*/
C51 COMPILER V7.06 IRINT 01/12/2005 17:37:54 PAGE 2
55 register BYTE i;
56 unsigned int count,count1; /*计时变量*/
57 unsigned int temp0,temp1,ir_code=0;
58 ir_enable=TRUE;
59 TMOD=0x11; /*timer 0 operate in 16 bit mode*/
60 EX1=0;
61 TL0=0;
62 TH0=0;
63 TR0=1;
64 /************************************/
65 /* Detect IR Head */
66 /************************************/
67 do /*Detect IR head 9mS*/
68 {
69 count=(TL0+TH0*256); /*count :us unit */
70 if(Filter13(1)==1) break;
71 }while(count<=(IR_HEAD+DELTA));
72 TR0=0; /*停止计时*/
73 count=(TL0+TH0*256); /*count :us unit */
74
75 if(Filter13(0)==1||((count<(IR_HEAD-DELTA*25))))//&&(IR_HEAD!=0xffff)))//||count<(7000))//IR_HEAD!=0xffff
-) /*for some noise disturb IR*/
76 {
77 ir_enable=FALSE; /* no IR head or not suitable for Ir head*/
78 EX1=1;
79 TR0=1;
80 return;
81 }
82 /************************************/
83 /* Detect OFF CODE 4.5mS */
84 /************************************/
85 while(Filter13(0)==1);
86 TR0=0;
87 TL0=0;
88 TH0=0;
89 TR0=1;
90 do /*Detect IR OFF CODE*/
91 {
92 count=(TL0+TH0*256); /*count :us unit */
93 if(Filter13(0)==1) break;
94 }while(count<(OFF_CODE+DELTA));
95 count1=count;
96 /* if(IR_HEAD==0xffff)IR_HEAD = count*2;//10738//9000//7500
97 OFF_CODE = IR_HEAD/2;//5369//4500//3750
98 OFF_REP = (IR_HEAD/4);//2684//2250// 1875
99 REP_CODE = (IR_HEAD/16);//667//467
100 DELTA = 300;//250
101 CODE_0_TIME= (IR_HEAD/16);//667//557//467
102 CODE_1_TIME= (CODE_0_TIME*3);//2000//1670//1400*/
103 TR0=0;
104 count=(TL0+TH0*256); /*count :us unit */
105 if(count<=(OFF_CODE-DELTA*2))
106 {
107 /*重复码OFF=2.25*/
108 if((count>(OFF_REP-DELTA)&&count<(OFF_REP+DELTA)))
109 {
110 TR0=0;
111 TL0=0;
112 TH0=0;
113 TR0=1;
114 do
115 {
C51 COMPILER V7.06 IRINT 01/12/2005 17:37:54 PAGE 3
116 count=(TL0+TH0*256); /*count :us unit */
117 if(Filter13(1)==1) break;
118 }while(count<=(REP_CODE+DELTA));
119 TR0=0;
120 count=(TL0+TH0*256); /*count :us unit */
121 if(INT1==1)
122 {
123 TR0=0;
124 if(ir_data==REMOTE_KEY_VO_DEC||ir_data==REMOTE_KEY_VO_INC||
125 ir_data==REMOTE_KEY_DECR_F||ir_data==REMOTE_KEY_INCR_F||
126 ir_data==REMOTE_KEY_DECR||ir_data==REMOTE_KEY_INCR)
127 {
128 ir_enable=TRUE; /*注意：ir_data不变*/
129 EX1=0;
130 }
131 else
132 {
133 ir_data=0;
134 ir_enable=FALSE;
135 EX1=1;
136 TR0=1;
137 }
138 return;
139 }
140 }
141 else
142 {
143 ir_enable=FALSE; /*not suitable for off code*/
144 EX1=1;
145 TR0=1;
146 return;
147 }
148 }
149 /************************************/
150 /* Detect 16 bit address code */
151 /************************************/
152 if(ir_enable==TRUE)
153 {
154 TMOD=0x11; /*counter start with INT0 and TR0*/
155 ir_code=0; /*初始化变量*/
156 for(i=0;i<16;i++)
157 {
158 while(INT1==0);
159 TL0=0;
160 TH0=0;
161 TR0=1;
162 do
163 {
164 count=(TL0+TH0*256); /*count :us unit */
165 if(Filter13(0)==1) break;
166 }while(count<=(CODE_1_TIME+DELTA)); /*INT0为高电平时计时*/
167 TR0=0;
168 ir_code<<=1;
169 if((count>(CODE_1_TIME-DELTA))&&(count<=(CODE_1_TIME+DELTA))) /*detect 1 code 2.24mS-0.56mS=1.68mS*/
170 ir_code++;
171 else if((count>(CODE_0_TIME-DELTA))&&(count<=(CODE_0_TIME+DELTA))); /*detect 0 code 1.12mS-0.56mS=0.56
-mS*/
172 else
173 {
174 ir_enable=FALSE;
175 TR0=1;
176 break; /*not suitable for address code */
C51 COMPILER V7.06 IRINT 01/12/2005 17:37:54 PAGE 4
177 }
178 } /*end for*/
179 }
180 /************************************/
181 /* Detect 16 bit data code */
182 /************************************/
183 if(ir_enable==TRUE&&ir_code==IR_SYSTEM_CODE)/**/
184 {
185 TMOD=0x11; /*counter start with INT0 and TR0*/
186 ir_code=0;
187 for(i=0;i<16;i++)
188 {
189 while(INT1==0);
190 TL0=0;
191 TH0=0;
192 TR0=1;
193 do
194 {
195 count=(TL0+TH0*256);
196 if(Filter13(0)==1) break;
197 }while(count<=(CODE_1_TIME+DELTA)); /*INT0为高电平时计时*/
198 TR0=0;
199 //count=(TL0+TH0*256); /*count :us unit */
200 ir_code<<=1;
201 if((count>(CODE_1_TIME-DELTA))&&(count<=(CODE_1_TIME+DELTA))) /*detect 1 code 1.68mS*/
202 ir_code++;
203 else if((count>(CODE_0_TIME-DELTA)&&count<=(CODE_0_TIME+DELTA))); /*detect 0 code 0.56mS*/
204 else
205 {
206 ir_enable=FALSE;
207 TR0=1;
208 break; /*not suitable for address code */
209 }
210 } /*end for*/
211 if(ir_enable==TRUE)
212 {
213 temp0=ir_code&0xff00;
214 temp0=~temp0;
215 temp0>>=8;
216 temp1=ir_code&0x00ff;
217 if(temp0!=temp1)
218 ir_enable=FALSE;
219 else
220 {
221 ir_data=(BYTE)(temp1); /*true code effective*/
222 #ifdef REMOTE_CODE
ir_data=0xff-ir_data;
ir_data=((ir_data<<4)&0xf0)|((ir_data>>4)&0x0f);
ir_data=((ir_data<<2)&0xcc)|((ir_data>>2)&0x33);
ir_data=((ir_data<<1)&0xaa)|((ir_data>>1)&0x55);
#endif
228 ir_enable=TRUE; /*set ir flag*/
229 EX1=0;
230 // IR_HEAD = count1*2;
231 return;
232 }
233 }
234 }
235 else
236 { ir_enable=FALSE;
237 EX1=1;}
238 }
C51 COMPILER V7.06 IRINT 01/12/2005 17:37:54 PAGE 5
239
240 //#endif
241
C51 COMPILATION COMPLETE. 0 WARNING(S), 1 ERROR(S)
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