📄 a93c46.lst
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C51 COMPILER V8.02 A93C46 07/11/2008 16:59:10 PAGE 1
C51 COMPILER V8.02, COMPILATION OF MODULE A93C46
OBJECT MODULE PLACED IN a93C46.OBJ
COMPILER INVOKED BY: D:\Keil\C51\BIN\C51.EXE a93C46.c BROWSE DEBUG OBJECTEXTEND
line level source
1 #include <reg51.h>
2 #include "a93c46.h"
3
4 // Write enable must precede all programming modes.
5 void Ewen(void)
6 {
7 1 uchar temp,InData;
8 1 CS=0;
9 1 SK=0;
10 1 CS=1;
11 1 InData=0x98; // 10011XXXX
12 1 for(temp=9;temp!=0;temp--) { // 9
13 2 DI=InData&0x80;
14 2 SK=1; SK=0;
15 2 InData<<=1;
16 2 }
17 1 CS=0;
18 1 }
19
20 // Disables all programming instructions.
21 void Ewds(void)
22 {
23 1 uchar temp,InData;
24 1 CS=0;
25 1 SK=0;
26 1 CS=1;
27 1 InData=0x80; // 10000XXXX
28 1 for(temp=9;temp!=0;temp--) { // 9
29 2 DI=InData&0x80;
30 2 SK=1; SK=0;
31 2 InData<<=1;
32 2 }
33 1 CS=0;
34 1 }
35
36 // Reads data stored in memory, at specified address.
37 uint Read(uchar address)
38 {
39 1 uchar temp;
40 1 uint result;
41 1 Ewen();
42 1 SK=0; DI=1; // 110 A5-A0
43 1 CS=0; CS=1;
44 1 SK=1; SK=0; // 1
45 1 address=address&0x3f|0x80;
46 1 for(temp=8;temp!=0;temp--) { // 8
47 2 DI=address&0x80;
48 2 SK=1; SK=0;
49 2 address<<=1;
50 2 }
51 1 DO=1;
52 1 for(temp=16;temp!=0;temp--) { // 16
53 2 SK=1;
54 2 result=(result<<1)|DO;
55 2 SK=0;
C51 COMPILER V8.02 A93C46 07/11/2008 16:59:10 PAGE 2
56 2 }
57 1 CS=0;
58 1 Ewds();
59 1 return(result);
60 1 }
61
62 // Writes memory location An - A0.
63 void Write(uchar address,uint InData)
64 {
65 1 uchar temp;
66 1 Ewen();
67 1 SK=0; DI=1; // 101 A5-A0
68 1 CS=0; CS=1;
69 1 SK=1; SK=0; // 1
70 1 address=address&0x3f|0x40;
71 1 /* for(temp=8;temp!=0;temp--) { // 8
72 1 DI=address&0x80;
73 1 SK=1; SK=0;
74 1 address<<=1;
75 1 }*/
76 1 for(temp=16;temp!=0;temp--) { // 16
77 2 DI=InData&0x8000;
78 2 SK=1; SK=0;
79 2 InData<<=1;
80 2 }
81 1 CS=0; DO=1;
82 1 CS=1; SK=1;
83 1 while(DO==0) { // busy test
84 2 SK=0; SK=1;
85 2 }
86 1 SK=0; CS=0;
87 1 Ewds();
88 1 }
89
90 /*
91 // Erase memory location An - A0.
92 void Erase(uchar address) {
93 uchar temp;
94 Ewen();
95 SK=0; DI=1; // 111 A5-A0
96 CS=0; CS=1;
97 SK=1; SK=0; // 1
98 address =0xc0;
99 for(temp=8;temp!=0;temp--) { // 8
100 DI=address&0x80;
101 SK=1; SK=0;
102 address<<=1;
103 }
104 CS=0; DO=1;
105 CS=1; SK=1;
106 while(DO==0) {
107 SK=0; SK=1;
108 }
109 SK=0; CS=0;
110 Ewds();
111 }
112
113 // Erases all memory locations. Valid only at VCC = 4.5V to 5.5V.
114 void Eral(void) {
115 uchar temp,InData;
116 Ewen();
117 CS=0;
C51 COMPILER V8.02 A93C46 07/11/2008 16:59:10 PAGE 3
118 SK=0;
119 CS=1;
120 InData=0x90; // 10010XXXX
121 for(temp=9;temp!=0;temp--) { // 9
122 DI=InData&0x80;
123 SK=1; SK=0;
124 InData<<=1;
125 }
126 CS=0; DO=1;
127 CS=1; SK=1;
128 while(DO==0) {
129 SK=0; SK=1;
130 }
131 SK=0; CS=0;
132 Ewds();
133 }
134
135 // Writes all memory locations. Valid only at VCC = 4.5V to 5.5V.
136 void Wral(uint InData) {
137 uchar temp,address;
138 Ewen();
139 CS=0;
140 SK=0;
141 CS=1;
142 address=0x88; // 10001XXXX
143 for(temp=9;temp!=0;temp--) { // 9
144 DI=address&0x80;
145 SK=1; SK=0;
146 address<<=1;
147 }
148 for(temp=16;temp!=0;temp--) { // 16
149 DI=InData&0x8000;
150 SK=1; SK=0;
151 InData<<=1;
152 }
153 CS=0; DO=1;
154 CS=1; SK=1;
155 while(DO==0) {
156 SK=0; SK=1;
157 }
158 SK=0; CS=0;
159 Ewds();
160 }
161
162 */
163
164 uchar ReadChar(uchar address)
165 {
166 1 uchar temp=address>>1;
167 1 if(address&0x01) return((uchar)(Read(temp)>>8));
168 1 else return((uchar)(Read(temp)));
169 1 }
170
171 void WriteChar(uchar address,uchar InData)
172 {
173 1 uchar temp=address>>1;
174 1 if(address&0x01) Write(temp,(uint)(Read(temp)&0x00ff|(InData<<8)));
175 1 else Write(temp,(uint)(Read(temp)&0xff00|InData));
176 1 }
177
178 void ReadString(uchar data *RamAddress,uchar RomAddress,uchar Number)
179 {
C51 COMPILER V8.02 A93C46 07/11/2008 16:59:10 PAGE 4
180 1 while(Number!=0) {
181 2 *RamAddress=ReadChar(RomAddress);
182 2 RamAddress++;
183 2 RomAddress++;
184 2 Number--;
185 2 }
186 1 }
187
188 void WriteString(uchar data *RamAddress,uchar RomAddress,uchar Number)
189 {
190 1 uint temp;
191 1 if(Number==0) return;
192 1 if(RomAddress&0x01) {
193 2 WriteChar(RomAddress,*RamAddress);
194 2 RamAddress++;
195 2 RomAddress++;
196 2 Number--;
197 2 }
198 1 if(Number==0) return;
199 1 while(Number>>1) {
200 2 temp=*RamAddress;
201 2 RamAddress++;
202 2 temp=temp|(*RamAddress)<<8;
203 2 RamAddress++;
204 2 Write(RomAddress>>1,temp);
205 2 RomAddress++;
206 2 RomAddress++;
207 2 Number--;
208 2 Number--;
209 2 }
210 1 if(Number) WriteChar(RomAddress,*RamAddress);
211 1 }
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 358 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = ---- 5
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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