📄 intctrl.lst
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C51 COMPILER V7.20 INTCTRL 07/16/2005 13:42:39 PAGE 1
C51 COMPILER V7.20, COMPILATION OF MODULE INTCTRL
OBJECT MODULE PLACED IN ..\output\IntCtrl.obj
COMPILER INVOKED BY: C:\Keil51\C51\BIN\C51.EXE ..\source\KERNEL\IntCtrl.c BROWSE DEBUG OBJECTEXTEND CODE PRINT(..\output
-\IntCtrl.lst) OBJECT(..\output\IntCtrl.obj)
line level source
1 #include "reg52.h"
2 #include "intrins.h"
3 #include "..\..\inc\globedef.h"
4 #include "..\..\inc\intctrl.h"
5 #include "..\..\inc\keyproc.h"
6 #include "..\..\inc\tuner.h"
7
8 /*====================================================
9 外部中断1, 用来接收遥控信号，和Timer0配合使用
10 ====================================================*/
11 void RemoteInt(void) interrupt 2
12 {
13 1 WORD IRTimeCount;
14 1 BYTE temp1,temp2;
15 1 IRTimeCount = (WORD)Timer0_CntH*256+(WORD)Timer0_CntL;
16 1 Timer0_CntH =0;
17 1 Timer0_CntL = 0;
18 1 Start_Timer0;
19 1 switch(IrState)
20 1 {
21 2 case IR_READY:
22 2 IRDataTemp=0;
23 2 IRDataCount=0;
24 2 IrState=IR_HEAD;
25 2 break;
26 2 case IR_HEAD:
27 2 if((IRTimeCount<IR_HEAD_MAX)&&(IRTimeCount>IR_HEAD_MIN))
28 2 {
29 3 IRDataCount=0;
30 3 IrState=IR_OFFCODE;
31 3 IRDataTemp=0;
32 3 RepCount = 0;
33 3 Current_Remote_In = 0;
34 3 }
35 2 else if((IRTimeCount>IR_REP_MIN) && (IRTimeCount<IR_REP_MAX))
36 2 {
37 3 //是重复信号
38 3 #ifdef IRRepEnable
39 3 if(1 == Current_Remote_In)
40 3 {
41 4 if( (Remote_value == 18) //FM/AM 和AUTO_SCAN_KEY复用
42 4 || (Remote_value == 7) //STEPR和FB复用
43 4 || (Remote_value == 8)) //STEPF和FF复用
44 4 {
45 5 FMAM_PRESSED = 1;
46 5 RepCount++;
47 5 }
48 4 if( (Remote_value == 19) //IR_KEY_TBL[2] = VOLUME_UP_KEY;
49 4 ||(Remote_value == 2) //IR_KEY_TBL[6] = VOLUME_DOWN_KEY;
50 4 ||(Remote_value == 12) //IR_KEY_TBL[5] = BASS_PLUS_KEY;
51 4 ||(Remote_value == 14)) //IR_KEY_TBL[9] = CENTER_MINUS_KEY;
52 4 //||(Remote_value == 0x7) ) //IR_KEY_TBL[7] = CENTER_PLUS_KEY;
53 4 {
54 5 //当遥控输入是以上按键时，才有重复功能
C51 COMPILER V7.20 INTCTRL 07/16/2005 13:42:39 PAGE 2
55 5 RepCount++;
56 5 if(RepCount > 3)
57 5 IR_KeyAct = 1; //当重复计数值超过设定值时，重复有效
58 5 }
59 4 }
60 3 #endif
61 3 IrState = IR_READY;
62 3 }
63 2 else
64 2 {
65 3 //是杂波
66 3 IR_KeyAct = 0;
67 3 IrState = IR_READY;
68 3 Current_Remote_In = 0;
69 3 }
70 2 break;
71 2 case IR_OFFCODE:
72 2 //地址码检测
73 2 IRDataTemp<<=1;
74 2 if(((IRTimeCount < CODE_1_MAX) && (IRTimeCount > CODE_1_MIN))
75 2 || ((IRTimeCount < CODE_0_MAX) && (IRTimeCount > CODE_0_MIN)))
76 2 {
77 3 IRDataCount++;
78 3 if((IRTimeCount < CODE_1_MAX) && (IRTimeCount > CODE_1_MIN))
79 3 IRDataTemp |= 0x1;//检测"1
80 3 if(IRDataCount >= 16)
81 3 {
82 4 IRDataCount=0;
83 4 if((IRDataTemp==IR_SYSTEM_CODE))
84 4 {
85 5 //是正确的地址码
86 5 IrState=IR_ADDRESS;
87 5 IRDataTemp=0;
88 5
89 5
90 5 }
91 4
92 4 else
93 4 {
94 5 //错误的地址码
95 5 IR_KeyAct=0;
96 5 Current_Remote_In = 0;
97 5 IrState=IR_READY;
98 5 }
99 4 }
100 3 }
101 2 else
102 2 {
103 3 //是杂波
104 3 IR_KeyAct = 0;
105 3 Current_Remote_In = 0;
106 3 IrState = IR_READY;
107 3 }
108 2 break;
109 2 case IR_ADDRESS:
110 2 //数据码检测
111 2 IRDataTemp>>=1;
112 2 if(((IRTimeCount < CODE_1_MAX)&&(IRTimeCount > CODE_1_MIN))
113 2 || ((IRTimeCount < CODE_0_MAX) && (IRTimeCount > CODE_0_MIN)))
114 2 {
115 3 IRDataCount++;
116 3
C51 COMPILER V7.20 INTCTRL 07/16/2005 13:42:39 PAGE 3
117 3 if((IRTimeCount < CODE_1_MAX) && (IRTimeCount > CODE_1_MIN))
118 3 IRDataTemp |= 0x8000; //检测到“1”
119 3
120 3 if(IRDataCount >= 16)
121 3 {
122 4 //判断检测到的数据码是否正确
123 4 IRDataCount=0;
124 4 temp1 = (BYTE)(IRDataTemp%256);
125 4 temp2 = (BYTE)(IRDataTemp/256);
126 4 temp2 = ~temp2;
127 4 if(temp1 == temp2)
128 4 {
129 5 Remote_value = temp1;
130 5 if(Remote_value > 0x1f)
131 5 Remote_value -= 0x20;
132 5 Current_Remote_In = 1;
133 5 if( (Remote_value == 18) //FM/AM 和AUTO_SCAN_KEY复用
134 5 || (Remote_value == 7) //STEPR和FB复用
135 5 || (Remote_value == 8)) //STEPF和FF复用
136 5 FMAM_PRESSED = 1;
137 5 else
138 5 IR_KeyAct = 1;
139 5 }
140 4 IrState = IR_READY;
141 4 IRDataCount = 0;
142 4 }
143 3 }
144 2 else
145 2 {
146 3 //无效键
147 3 IR_KeyAct = 0;
148 3 Current_Remote_In = 0;
149 3 IrState = IR_READY;
150 3
151 3 }
152 2 break;
153 2 }
154 1 }
155
156 /*======================================================
157 外部中断0, 用来判断CS49326是否有message发送给主控MCU
158 =======================================================*/
159 void CS49326Int(void) interrupt 0// using 1
160 {
161 1 //read CS49326 unsolicited messages
162 1 }
163
164 /*================================================================
165 Timer0中断用于遥控按键输入中断的计时
166 ================================================================*/
167 void TIMER0Int(void) interrupt INT_Timer0
168 {
169 1 Stop_Timer0;
170 1 IrState = IR_READY;
171 1 Timer0_CntH = 0;
172 1 Timer0_CntL = 0;
173 1 ET0 = 1;
174 1 }
175 /*===================================================================
176 设置TIMER1为定时中断，每次中断时间为20ms，中断1ms后开始测试滚轮按键，
177 VFD显示时间长度计时
178 ===================================================================*/
C51 COMPILER V7.20 INTCTRL 07/16/2005 13:42:39 PAGE 4
179 void TIMER1Int(void) interrupt INT_Timer1
180 {
181 1 Timer1_CntL = 0xE0;
182 1 Timer1_CntH = 0xB1;
183 1 Start_Timer1;
184 1 /*
185 1 if(Volume_Interval > 0)
186 1 {
187 1 Volume_Interval++;
188 1 if(Volume_Interval > 60)
189 1 Volume_Interval = 0;
190 1 }
191 1 */
192 1 if(FMAM_PRESSED > 0)
193 1 {
194 2 FMAM_PRESSED++;
195 2 //证明已经没有FM/AM按下,如果按下FMAM_PRESSED=1,
196 2 //按下经过120ms,(NEC最长为108ms)
197 2 if(FMAM_PRESSED > 8)
198 2 {
199 3 if(RepCount > 5)
200 3 {
201 4 if(Remote_value == 18)//FMAM_KEY
202 4 Remote_value = 28;//AUTO_SCAN_KEY
203 4 else if(Remote_value == 7) //CHANNEL_SETPR_KEY
204 4 Remote_value = 20;//CHANNEL_FB_KEY
205 4 else if(Remote_value == 8) //CHANNEL_SETPF_KEY
206 4 Remote_value = 21;//CHANNEL_FF_KEY
207 4
208 4 }
209 3 IR_KeyAct = 1;
210 3 FMAM_PRESSED = 0;
211 3 }
212 2
213 2
214 2 }
215 1 if(TO_MAIN_DISPLAY > 0)
216 1 {
217 2 TO_MAIN_DISPLAY--;
218 2 if((TO_MAIN_DISPLAY % 15) == 0)
219 2 {
220 3 if(FLASH_TEMP == 0)
221 3 FLASH_TEMP = 1;
222 3 else
223 3 FLASH_TEMP = 0;
224 3 }
225 2 }
226 1
227 1
228 1 if(Key_Timer >= 1)
229 1 {
230 2 Key_Timer++;
231 2
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