📄 util.lst
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C51 COMPILER V7.50 UTIL 04/04/2007 15:49:16 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE UTIL
OBJECT MODULE PLACED IN util.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE util.c BROWSE DEBUG OBJECTEXTEND CODE
line level source
1 /* YuanGao electronic designe co.ldt
2 (c) Copyright 2002,2003, All Rights Reserved */
3
4 #include <w77e58.h>
5 #include "global.h"
6 #include "io.h"
7 #include "util.h"
8
9
10 //#define UART0_9600_11M
11 #define UART0_19200_11M
12
13 //#define UART0_38400_11M
14
15
16 //uchar idata SysTask;
17 uchar idata SysTimer;
18 uchar idata Uart0Timer;
19 UINT16 idata GPSTimer30;
20
21 uchar idata _timer0=0; /* timer0 interrupt counter, use this counter to adjust timeout counte
-rs period */
22 #define TIMEOUT_FACTOR 17 /* timeout factor x 1.0ms (timer0 period) = actual timeout p
-eriod */
23
24
25
26 //P3.2 0003H INT0
27 void ISR_INT0(void) interrupt 0 //using 1
28 {
29 1 ;
30 1 }
31
32
33
34 //Timer0 000BH
35 void ISR_Timer0(void) interrupt 1 //using 2
36 {
37 1
38 1 //TIMER0: Mode 1每中断一次的时间间隔是:Timer=T x (2^16-TH0TL0),T=(12/11.0592)/4; 0XF760的定时是:0.27
-126736 X (65536-63328)=0.27126736X2208=599u
39 1 //TIMEOUT_FACTOR=17的定时为:17x599us =10183 us =10(ms)
40 1
41 1
42 1 TF0 = 0;
43 1 TH0 = 0xF7;
44 1 TL0 = 0x60;
45 1 TR0 = 1;
46 1
47 1 /* count down timeout counters */
48 1 if( _timer0 < TIMEOUT_FACTOR )
49 1 _timer0++;
50 1 else
51 1 {
52 2 _timer0 = 0;
C51 COMPILER V7.50 UTIL 04/04/2007 15:49:16 PAGE 2
53 2 if(SysTimer) SysTimer--;
54 2 if(Uart0Timer) Uart0Timer--;
55 2 if(GPSTimer30) GPSTimer30--;
56 2
57 2
58 2 }
59 1
60 1 }
61
62
63 //P3.3 Int1 0013H
64 void ISR_INT1(void) interrupt 2 //using 1
65 {
66 1
67 1 ;
68 1
69 1 }
70
71
72
73
74
75
76
77 /**************************************************************************
78 * Timer1 for 1.5ms interrupt
79 **************************************************************************/
80 //Timer1 001bH
81 void ISR_Timer1(void) interrupt 3 //using 1
82 {
83 1 #if 0
TH1 = 0xf7; /* 0xf7 */
TL1 = 0; /* 0x0 */
TR1 = 1;
/* count down timeout counters */
if( _timer0 < TIMEOUT_FACTOR )
_timer0++;
else
{
_timer0 = 0;
if(SysTimer) SysTimer--;
}
#endif
100 1
101 1
102 1 }
103
104
105
106 #if 0
//*****************************************
//串口中断处理
//serial_0 0023H
void serial(void) interrupt 4 //using 2
{
if (TI)
{
TI = 0;
C51 COMPILER V7.50 UTIL 04/04/2007 15:49:16 PAGE 3
//SBUF='1';
#if 1
if (outbufsign)
//if (putlast==outlast) outbufsign=0;
//else
{
SBUF=*outlast; //未发送完继续发送
outlast++; //最后传出去的字节位置加一
if (outlast==outbuf+OLEN) outlast=outbuf;//地址到顶部回到底部
if (putlast==outlast) outbufsign=0; //数据发送完置发送缓冲区空标志
}
else outbufsign0=0;
#endif
}
if (RI)
{
#if 0
RI = 0;
if(!inbufful)
{
*inlast= SBUF; //放入数据
inlast++; //最后放入的位置加一
inbufsign=1;
if (inlast==inbuf+ILEN) inlast=inbuf; //地址到顶部回到底部
if (inlast==getlast) inbufful=1; //接收缓冲区满置满标志
}
#endif
}
}
#endif
152
153
154 /**************************************************************************
155 * Timer2 for 2ms interrupt
156 **************************************************************************/
157 //002BH
158 void ISR_Timer2(void) interrupt 5 //using 1
159 {
160 1
161 1 ;
162 1
163 1 }
164
165
166 #if 0
//SERIAL 1 003BH
void serial_1(void) interrupt 7 //using 2
{
if(RI_1)
{
RI_1 = 0;
}
if(TI_1)
C51 COMPILER V7.50 UTIL 04/04/2007 15:49:16 PAGE 4
{
TI_1=0;
SBUF1=0x34;
#if 0
while(TI_1_1==0) ;
TI_1=0;
SBUF1=0x35;
while(TI_1_1==0) ;
TI_1=0;
SBUF1=0x36;
while(TI_1_1==0) ;
TI_1=0;
#endif
}
}
#endif
196
197
198 //P1.4
199 void ISR_Int2(void) interrupt 8 //using 1
200 {
201 1
202 1 //if(SysTask==0)SysTask++;
203 1
204 1
205 1 }
206
207
208 void ISR_Int3(void) interrupt 9 //using 1
209 {
210 1
211 1 ;
212 1
213 1 }
214
215
216 void ISR_Int4(void) interrupt 10 //using 1
217 {
218 1
219 1 ;
220 1
221 1 }
222
223 void ISR_Int5(void) interrupt 11 //using 1
224 {
225 1
226 1 ;
227 1
228 1 }
229
230
231 void ISR_WatchDog(void) interrupt 12 //using 1
232 {
233 1
234 1 ;
235 1
236 1 }
237
238
C51 COMPILER V7.50 UTIL 04/04/2007 15:49:16 PAGE 5
239 #ifdef DEBUG_GPS
240 #define UART1_9600_11M
241 #else
#define UART1_4800_11M
#endif
244 /**************************************************************************
245 * Init system
246 **************************************************************************/
247 void CPU_init(void)
248 {
249 1
250 1 EA = 0;
251 1 EIE = 0;
252 1
253 1 P1=0xff;
254 1 P3=0xff;
255 1 P0=0xff;
256 1
257 1 //system init ，其中串口0用定时器2，串口1用定时器1
258 1 //串口1的设置
259 1 IE = 0x90; //允许总中断和串口0的中断
260 1 TMOD=0x20; //定时器1工作在模式2
261 1 //CKCON=0x30; //Timerl和Timer2时钟为1／12CLOCK
262 1 //CKCON |= 0x10; //Timer1 =1/4 clock
263 1 //CKCON |= 0x20; //Timer2 =1/4 clock
264 1
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