📄 ds1302.lst
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C51 COMPILER V7.20 DS1302 09/12/2007 14:29:53 PAGE 1
C51 COMPILER V7.20, COMPILATION OF MODULE DS1302
OBJECT MODULE PLACED IN DS1302.OBJ
COMPILER INVOKED BY: d:\Program Files\Keil\C51\BIN\C51.EXE DS1302.c BROWSE DEBUG OBJECTEXTEND
line level source
1 #include <REG51.H>
2 #include <intrins.h>
3 //#include "LCD1602.h"
4 //#include "DS1302.h"
5 #define uint unsigned int
6 #define uchar unsigned char
7 sbit DS1302_CLK = P1^7; //实时时钟时钟线引脚
8 sbit DS1302_IO = P1^6; //实时时钟数据线引脚
9 sbit DS1302_RST = P1^5; //实时时钟复位线引脚
10 sbit wireless_1 = P3^0;
11 sbit wireless_2 = P3^1;
12 sbit wireless_3 = P3^2;
13 sbit wireless_4 = P3^3;
14 sbit ACC0 = ACC^0;
15 sbit ACC7 = ACC^7;
16 char hide_sec,hide_min,hide_hour,hide_day,hide_week,hide_month,hide_year; //秒,分,时到日,月,年位闪的计数
17 sbit Set = P2^0; //模式切换键
18 sbit Up = P2^1; //加法按钮
19 sbit Down = P2^2; //减法按钮
20 sbit out = P2^3; //立刻跳出调整模式按钮
21 sbit DQ = P1^0; //温度传送数据IO口
22 char done,count,temp,flag,up_flag,down_flag;
23 uchar temp_value; //温度值
24 uchar TempBuffer[5],week_value[2];
25
26
27 void show_time(); //液晶显示程序
28 /***********1602液晶显示部分子程序****************/
29
30
31 //Port Definitions**********************************************************
32 sbit LcdRs = P2^5;
33 sbit LcdRw = P2^6;
34 sbit LcdEn = P2^7;
35 sfr DBPort = 0x80; //P0=0x80,P1=0x90,P2=0xA0,P3=0xB0.数据端口
36
37 //内部等待函数**************************************************************************
38 unsigned char LCD_Wait(void)
39 {
40 1 LcdRs=0;
41 1 LcdRw=1; _nop_();
42 1 LcdEn=1; _nop_();
43 1
44 1 LcdEn=0;
45 1 return DBPort;
46 1 }
47 //向LCD写入命令或数据************************************************************
48 #define LCD_COMMAND 0 // Command
49 #define LCD_DATA 1 // Data
50 #define LCD_CLEAR_SCREEN 0x01 // 清屏
51 #define LCD_HOMING 0x02 // 光标返回原点
52 void LCD_Write(bit style, unsigned char input)
53 {
54 1 LcdEn=0;
55 1 LcdRs=style;
C51 COMPILER V7.20 DS1302 09/12/2007 14:29:53 PAGE 2
56 1 LcdRw=0; _nop_();
57 1 DBPort=input; _nop_();//注意顺序
58 1 LcdEn=1; _nop_();//注意顺序
59 1 LcdEn=0; _nop_();
60 1 LCD_Wait();
61 1 }
62
63 //设置显示模式************************************************************
64 #define LCD_SHOW 0x04 //显示开
65 #define LCD_HIDE 0x00 //显示关
66
67 #define LCD_CURSOR 0x02 //显示光标
68 #define LCD_NO_CURSOR 0x00 //无光标
69
70 #define LCD_FLASH 0x01 //光标闪动
71 #define LCD_NO_FLASH 0x00 //光标不闪动
72
73 void LCD_SetDisplay(unsigned char DisplayMode)
74 {
75 1 LCD_Write(LCD_COMMAND, 0x08|DisplayMode);
76 1 }
77
78 //设置输入模式************************************************************
79 #define LCD_AC_UP 0x02
80 #define LCD_AC_DOWN 0x00 // default
81
82 #define LCD_MOVE 0x01 // 画面可平移
83 #define LCD_NO_MOVE 0x00 //default
84
85 void LCD_SetInput(unsigned char InputMode)
86 {
87 1 LCD_Write(LCD_COMMAND, 0x04|InputMode);
88 1 }
89
90 //初始化LCD************************************************************
91 void LCD_Initial()
92 {
93 1 LcdEn=0;
94 1 LCD_Write(LCD_COMMAND,0x38); //8位数据端口,2行显示,5*7点阵
95 1 LCD_Write(LCD_COMMAND,0x38);
96 1 LCD_SetDisplay(LCD_SHOW|LCD_NO_CURSOR); //开启显示, 无光标
97 1 LCD_Write(LCD_COMMAND,LCD_CLEAR_SCREEN); //清屏
98 1 LCD_SetInput(LCD_AC_UP|LCD_NO_MOVE); //AC递增, 画面不动
99 1 }
100
101 //液晶字符输入的位置************************
102 void GotoXY(unsigned char x, unsigned char y)
103 {
104 1 if(y==0)
105 1 LCD_Write(LCD_COMMAND,0x80|x);
106 1 if(y==1)
107 1 LCD_Write(LCD_COMMAND,0x80|(x-0x40));
108 1 }
109
110 //将字符输出到液晶显示
111 void Print(unsigned char *str)
112 {
113 1 while(*str!='\0')
114 1 {
115 2 LCD_Write(LCD_DATA,*str);
116 2 str++;
117 2 }
C51 COMPILER V7.20 DS1302 09/12/2007 14:29:53 PAGE 3
118 1 }
119
120
121
122
123
124
125 /***********DS1302时钟部分子程序******************/
126 typedef struct __SYSTEMTIME__
127 {
128 unsigned char Second;
129 unsigned char Minute;
130 unsigned char Hour;
131 unsigned char Week;
132 unsigned char Day;
133 unsigned char Month;
134 unsigned char Year;
135 unsigned char DateString[11];
136 unsigned char TimeString[9];
137 }SYSTEMTIME; //定义的时间类型
138 SYSTEMTIME CurrentTime;
139
140
141 #define AM(X) X
142 #define PM(X) (X+12) // 转成24小时制
143 #define DS1302_SECOND 0x80 //时钟芯片的寄存器位置,存放时间
144 #define DS1302_MINUTE 0x82
145 #define DS1302_HOUR 0x84
146 #define DS1302_WEEK 0x8A
147 #define DS1302_DAY 0x86
148 #define DS1302_MONTH 0x88
149 #define DS1302_YEAR 0x8C
150
151 void DS1302InputByte(unsigned char d) //实时时钟写入一字节(内部函数)
152 {
153 1 unsigned char i;
154 1 ACC = d;
155 1 for(i=8; i>0; i--)
156 1 {
157 2 DS1302_IO = ACC0; //相当于汇编中的 RRC
158 2 DS1302_CLK = 1;
159 2 DS1302_CLK = 0;
160 2 ACC = ACC >> 1;
161 2 }
162 1 }
163
164 unsigned char DS1302OutputByte(void) //实时时钟读取一字节(内部函数)
165 {
166 1 unsigned char i;
167 1 for(i=8; i>0; i--)
168 1 {
169 2 ACC = ACC >>1; //相当于汇编中的 RRC
170 2 ACC7 = DS1302_IO;
171 2 DS1302_CLK = 1;
172 2 DS1302_CLK = 0;
173 2 }
174 1 return(ACC);
175 1 }
176
177 void Write1302(unsigned char ucAddr, unsigned char ucDa) //ucAddr: DS1302地址, ucData: 要写的数据
178 {
179 1 DS1302_RST = 0;
C51 COMPILER V7.20 DS1302 09/12/2007 14:29:53 PAGE 4
180 1 DS1302_CLK = 0;
181 1 DS1302_RST = 1;
182 1 DS1302InputByte(ucAddr); // 地址，命令
183 1 DS1302InputByte(ucDa); // 写1Byte数据
184 1 DS1302_CLK = 1;
185 1 DS1302_RST = 0;
186 1 }
187
188 unsigned char Read1302(unsigned char ucAddr) //读取DS1302某地址的数据
189 {
190 1 unsigned char ucData;
191 1 DS1302_RST = 0;
192 1 DS1302_CLK = 0;
193 1 DS1302_RST = 1;
194 1 DS1302InputByte(ucAddr|0x01); // 地址，命令
195 1 ucData = DS1302OutputByte(); // 读1Byte数据
196 1 DS1302_CLK = 1;
197 1 DS1302_RST = 0;
198 1 return(ucData);
199 1 }
200
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