?? ds1302.lst
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C51 COMPILER V7.50 DS1302 06/12/2008 09:13:37 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE DS1302
OBJECT MODULE PLACED IN ds1302.OBJ
COMPILER INVOKED BY: g:\Keil\C51\BIN\C51.EXE ds1302.c BROWSE DEBUG OBJECTEXTEND
line level source
1 #include "regx52.h"
2 #include "lcd1602.h"
3
4 #define DS_RST P2_5
5 #define DS_IO P2_7
6 #define DS_CLK P2_6
7
8 unsigned char Time[7]={0x56,0x00,0x00,0x01,0x01,0x05,0x08};
9 unsigned char Temp_Buffer[2];
10
11 void DS_Open(void)
12 {
13 1 DS_CLK=0;
14 1 DS_RST=1;
15 1 }
16
17 void DS_Close(void)
18 {
19 1 DS_RST=0;
20 1 DS_CLK=0;
21 1 }
22
23 void DS_Write_Byte(unsigned char dat)
24 {
25 1 unsigned char i;
26 1 for(i=0;i<8;i++)
27 1 {
28 2 if(dat&0x01)
29 2 {
30 3 DS_IO=1;
31 3 }
32 2 else
33 2 {
34 3 DS_IO=0;
35 3 }
36 2 DS_CLK=1;
37 2 _nop_();
38 2 _nop_();
39 2 DS_CLK=0;
40 2 dat>>=1;
41 2 }
42 1 DS_IO=1;
43 1 }
44
45 unsigned char DS_Read_Byte(void)
46 {
47 1 unsigned char i,r_dat;
48 1 for(i=0;i<8;i++)
49 1 {
50 2 r_dat>>=1;
51 2 if(DS_IO)
52 2 {
53 3 r_dat+=0x80;
54 3 }
55 2 DS_CLK=1;
C51 COMPILER V7.50 DS1302 06/12/2008 09:13:37 PAGE 2
56 2 _nop_();
57 2 _nop_();
58 2 DS_CLK=0;
59 2 }
60 1 return r_dat;
61 1 }
62
63 void DS_Get_Time(unsigned char *p)
64 {
65 1 unsigned char i;
66 1 DS_Open();
67 1 DS_Write_Byte(0xbf);
68 1 DS_Close();
69 1 DS_Open();
70 1 DS_Write_Byte(0xbf);
71 1 for(i=0;i<7;i++)
72 1 {
73 2 p[i]=DS_Read_Byte();
74 2 }
75 1 DS_Close();
76 1 }
77
78 void DS_Set_Time(unsigned char *p)
79 {
80 1 unsigned char i;
81 1 p[0]&=0x7f;
82 1 DS_Open();
83 1 DS_Write_Byte(0xbe);
84 1 for(i=0;i<7;i++)
85 1 {
86 2 DS_Write_Byte(p[i]);
87 2 }
88 1 DS_Write_Byte(0x00);
89 1 DS_Close();
90 1 }
91
92 void DS_Initial(void)
93 {
94 1 unsigned char dat;
95 1 DS_RST=0;
96 1 DS_Open();
97 1 DS_Write_Byte(0x8e);
98 1 DS_Write_Byte(0x00);
99 1 DS_Close();
100 1
101 1 DS_Open();
102 1 DS_Write_Byte(0x81);
103 1 dat=DS_Read_Byte();
104 1 DS_Close();
105 1
106 1 dat&=0x7f;
107 1
108 1 DS_Open();
109 1 DS_Write_Byte(0x80);
110 1 DS_Write_Byte(dat);
111 1 DS_Close();
112 1
113 1 DS_Open();
114 1 DS_Write_Byte(0x90);
115 1 DS_Write_Byte(0xa5);
116 1 DS_Close();
117 1
C51 COMPILER V7.50 DS1302 06/12/2008 09:13:37 PAGE 3
118 1 DS_Open();
119 1 DS_Write_Byte(0x8e);
120 1 DS_Write_Byte(0x80);
121 1 DS_Close();
122 1 }
123
124 void Change_To_Char(unsigned int t,unsigned char *str)
125 {
126 1 unsigned char a[2];
127 1 char i, j;
128 1 a[0]=(t/10)%10;
129 1 a[1]=t%10;
-
130 1 for(i=0; i<2; i++)
131 1 a[i]=a[i]+'0';
132 1 for(i=0; (a[i]=='0')&&(i<2); i++)
133 1 {
134 2 ;
135 2 }
136 1 for(j=0; j<i; j++)
137 1 {
138 2 *str='0';
139 2 str++;
140 2 }
141 1 for(; i<2; i++)
142 1 {
143 2 *str=a[i];
144 2 str++;
145 2 }
146 1
147 1 *str='\0';
148 1 }
149
150 void Delay(void)
151 {
152 1 unsigned char i,j;
153 1 for(i=0;i<224;i++)
154 1 for(j=0;j<224;j++)
155 1 ;
156 1 }
157
158 void main(void)
159 {
160 1 unsigned char ii;
161 1 unsigned char year;
162 1 Lcd_Initial();
163 1 DS_Initial();
164 1 Gotoxy(0,0);
165 1 Print(" / / ");
166 1 Gotoxy(0,1);
167 1 Print(" : ");
168 1 DS_Set_Time(&Time[0]);
169 1 while(1)
170 1 {
171 2 year=20;
172 2 DS_Get_Time(&Time[0]);
173 2 ii=Time[1]&0x0f;
174 2 Time[1]>>=4;
175 2 Time[1]&=0x07;
176 2 Time[1]=Time[1]*10+ii;
177 2 Change_To_Char(Time[1],&Temp_Buffer[0]);
178 2 Gotoxy(3,1);
C51 COMPILER V7.50 DS1302 06/12/2008 09:13:37 PAGE 4
179 2 Print(&Temp_Buffer[0]);
180 2
181 2 if(Time[2]&&0x80)
182 2 {
183 3 if(Time[2]&&0x20)
184 3 {
185 4 Gotoxy(5,1);
186 4 Print("(AM)");
187 4 }
188 3 else
189 3 {
190 4 Gotoxy(5,1);
191 4 Print("(PM)");
192 4 }
193 3 }
194 2 else
195 2 {
196 3 Gotoxy(5,1);
197 3 Print("(24th)");
198 3 ii=Time[2]&0x0f;
199 3 Time[2]>>=4;
200 3 Time[2]&=0x03;
201 3 Time[2]=Time[2]*10+ii;
202 3 Change_To_Char(Time[2],&Temp_Buffer[0]);
203 3 Gotoxy(0,1);
204 3 Print(&Temp_Buffer[0]);
205 3 }
206 2
207 2 ii=Time[3]&0x0f;
208 2 Time[3]>>=4;
209 2 Time[3]&=0x03;
210 2 Time[3]=Time[3]*10+ii;
211 2 Change_To_Char(Time[3],&Temp_Buffer[0]);
212 2 Gotoxy(8,0);
213 2 Print(&Temp_Buffer[0]);
214 2
215 2 ii=Time[4]&0x0f;
216 2 Time[4]>>=4;
217 2 Time[4]&=0x01;
218 2 Time[4]=Time[4]*10+ii;
219 2 Change_To_Char(Time[4],&Temp_Buffer[0]);
220 2 Gotoxy(5,0);
221 2 Print(&Temp_Buffer[0]);
222 2
223 2 ii=Time[6]&0x0f;
224 2 Time[6]>>=4;
225 2 Time[6]&=0x0f;
226 2 Time[6]=Time[6]*10+ii;
227 2 Change_To_Char(Time[6],&Temp_Buffer[0]);
228 2 Gotoxy(2,0);
229 2 Print(&Temp_Buffer[0]);
230 2 Change_To_Char(year,&Temp_Buffer[0]);
231 2 Gotoxy(0,0);
232 2 Print(&Temp_Buffer[0]);
233 2
234 2 ii=Time[5]&0x07;
235 2 Gotoxy(12,1);
236 2 switch(ii)
237 2 {
238 3 case 0x01: Print("Mon"); break;
239 3 case 0x02: Print("Tue"); break;
240 3 case 0x03: Print("Wen"); break;
C51 COMPILER V7.50 DS1302 06/12/2008 09:13:37 PAGE 5
241 3 case 0x04: Print("Tue"); break;
242 3 case 0x05: Print("Fir"); break;
243 3 case 0x06: Print("Sat"); break;
244 3 case 0x07: Print("Sun"); break;
245 3 default: break;
246 3 }
247 2 Delay();
248 2 }
249 1 }
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 1012 ----
CONSTANT SIZE = 75 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = 9 16
IDATA SIZE = ---- ----
BIT SIZE = ---- 1
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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