📄 main.lst
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C51 COMPILER V7.06 MAIN 05/18/2006 14:10:09 PAGE 1
C51 COMPILER V7.06, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: D:\Program Files\Keil\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND
stmt level source
1 #include "test.h"
2 #define GAIN_W_L8 XBYTE[0XB000]
3 #define GAIN_W_H4 XBYTE[0XB001]
4 #define GAIN_R_L8 XBYTE[0XB002]
5 #define GAIN_R_H4 XBYTE[0XB003]
6 #define GAIN_UPDATE XBYTE[0XC000]
7 #define AD_START XBYTE[0XA000]
8 #define AD_H8 XBYTE[0XA000]
9 #define AD_L4 XBYTE[0XA001]
10 sbit SCL=P1^3;
11 sbit SDA=P1^4; /*DEFINE CLOCK LINE AND DATA LINE FIRST */
12 int Sample0( )
13 {
14 1 unsigned char xdata IntNum ;
15 1 unsigned int xdata Cycle ;
16 1 unsigned int xdata DataW ;
17 1
18 1 unsigned int xdata DataWSum ;
19 1
20 1
21 1
22 1 DataWSum = 0 ;
23 1 for ( Cycle = 0 ; Cycle < 30 ; Cycle++ )
24 1 {
25 2 IntNum |= 0X80 ;
26 2 AD_START = 0x10 ; //启动转换
27 2 while( IntNum & 0X80 ) //工作通道转换结束,K开始接受数据
28 2 {
29 3 IntNum = ADDR_INT ;
30 3 }
31 2 DataW = AD_H8 ;
32 2 DataW = _irol_ ( DataW , 4 );
33 2 DataW += AD_L4 /16 ;
34 2 DataWSum += DataW / 30 ;
35 2 }
36 1 return DataWSum ;
37 1
38 1 }
39
40 void Start()
41 {
42 1 SDA=1;
43 1 SCL=1;
44 1 SDA=0;
45 1 SCL=0;
46 1 } /*开始的前导符*/
47 void Stop()
48 {
49 1
50 1
51 1 SDA=0;
52 1 SCL=1;
53 1 SDA=1;
54 1 SCL=0;
55 1 SDA=0;
C51 COMPILER V7.06 MAIN 05/18/2006 14:10:09 PAGE 2
56 1
57 1
58 1 }
59 void Send(unsigned char SendData)
60 {
61 1 unsigned char temp;
62 1 unsigned char i;
63 1 SCL=0;
64 1 for (i=0;i<8;i++)
65 1 {
66 2 temp=SendData ;
67 2 temp=temp&0x80;
68 2
69 2 if (temp==0x80) /*bit 7 is 1*/
70 2 {
71 3 SDA=1;
72 3 }
73 2 else
74 2 {
75 3 SDA=0;
76 3 }
77 2
78 2 SCL=1;
79 2 SCL=0;
80 2
81 2 SendData=SendData<<1;
82 2 } /* end for i*/
83 1
84 1 SDA=1;
85 1
86 1 SCL=1;
87 1 while(SDA) {} /*JUDGE WHETHER ACKNOWLEDGE IS OCCUR OR NOT*/
88 1 SCL=0;
89 1
90 1 } /*发送数据*/
91 void Start_2464(unsigned char rw, /*读或写的标志*/
92 unsigned char ChipID ) /*24c256的硬件的编址*/
93
94
95 {
96 1 unsigned char byte;
97 1 rw&=0x01;
98 1 byte=0xa0;
99 1 byte|=rw;
100 1 ChipID&=0x07; /*get low three bit */
101 1 ChipID=ChipID<<1;
102 1 byte|=ChipID;
103 1 Start();
104 1
105 1 Send(byte);
106 1
107 1
108 1 }
109 void ByteWrite_2464( unsigned char ChipID ,
110 unsigned int addr , /*待发送的数的首址*/
111 unsigned char senddata) /* 待发送的数 */
112 {
113 1 unsigned char temp;
114 1
115 1 Start_2464(0x00,ChipID);
116 1 temp= addr>>8 ; /*high address */
117 1 Send(temp);
C51 COMPILER V7.06 MAIN 05/18/2006 14:10:09 PAGE 3
118 1 temp=addr&0x00ff; /*low address */
119 1 Send(temp);
120 1 Send(senddata);
121 1 Stop();
122 1 for (temp=0;temp<0xff ;temp++); /*对于I2C总线而言延时是最重要的,*/
123 1 for (temp=0;temp<0xff;temp++);
124 1 for (temp=0;temp<0xff ;temp++); /*对于I2C总线而言延时是最重要的,*/
125 1 for (temp=0;temp<0xa0;temp++);
126 1
127 1
128 1
129 1 }
130 char Get_2464 () /*获取一个字节的数据*/
131 {
132 1 unsigned char getdata;
133 1 unsigned char cycle ;
134 1 getdata=0x00;
135 1
136 1 for (cycle=0;cycle<8;cycle++) /*一共要接受8个字节的数据*/
137 1 {
138 2 getdata=getdata<<1;
139 2 SCL=1;
140 2 if (SDA) /*SDA=1*/
141 2 {
142 3 getdata|=0x01;
143 3 }
144 2 else /*SDA=0*/
145 2 {
146 3 getdata|=0x00;
147 3 }
148 2 SCL=0;
149 2
150 2 } /*end for cycle*/
151 1 return getdata;
152 1
153 1
154 1 }
155
156 void SequentialRead_2464( unsigned char ChipID ,
157 unsigned char *Buffer, /*存放数据的首址,读取的数据全部存储到外部的数据存
-储器*/
158 unsigned int num ) /*读取数据的字节数*/
159 {
160 1 unsigned int cycle;
161 1 unsigned char senddata;
162 1
163 1
164 1
165 1 Start_2464(0X01,ChipID);
166 1 for (cycle=0;cycle<num;cycle++)
167 1 {
168 2 senddata=Get_2464();
169 2 Buffer[cycle]=senddata; /*送到外部的数据存储器*/
170 2
171 2 if(cycle==num-1) /*the last byte data need not ACK*/
172 2 {
173 3 SDA=1;
174 3 SCL=1;
175 3 SCL=0; /*NOACK*/
176 3 Stop();
177 3 break;
178 3 }
C51 COMPILER V7.06 MAIN 05/18/2006 14:10:09 PAGE 4
179 2 SDA=0; /*ACK*/
180 2 SCL=1; /*ACK*/
181 2 SCL=0; /*ACK*/
182 2 SDA=1; /*ACK*/
183 2 } /*end for cycle*/
184 1 }
185 void RandomRead_2464(unsigned char ChipID ,
186 unsigned char *Buffer,/*读取的数据放到外部的数据存储器waddr就是外部的数⌨️ 快捷键说明
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