?? flash.lst
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C51 COMPILER V7.09 FLASH 08/01/2005 10:32:13 PAGE 1
C51 COMPILER V7.09, COMPILATION OF MODULE FLASH
OBJECT MODULE PLACED IN Flash.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE Flash.c BROWSE DEBUG OBJECTEXTEND
line level source
1 /******************************************************/
2 /* 文件名: Flash.c */
3 /* 功能描述: 編程擴展AT29C010, 了解Flash特性 */
4 /******************************************************/
5
6 #define START_ADDR ((unsigned char volatile xdata *) 0x0000)
7 #define ADDR_UNLOCK1 ((unsigned char volatile xdata *) 0x5555)
8 #define ADDR_UNLOCK2 ((unsigned char volatile xdata *) 0x2AAA)
9
10 sfr AUXR = 0x8E;
11
12 void delay()
13 {
14 1 unsigned int i;
15 1 for(i=0; i<1000; i++);
16 1 }
17
18 void unprotect() // 取消軟件數據保護
19 {
20 1 *ADDR_UNLOCK1 = 0xAA;
21 1 *ADDR_UNLOCK2 = 0x55;
22 1 *ADDR_UNLOCK1 = 0x80;
23 1 *ADDR_UNLOCK1 = 0xAA;
24 1 *ADDR_UNLOCK2 = 0x55;
25 1 *ADDR_UNLOCK1 = 0x20;
26 1 }
27
28 void erase() // 芯片擦除
29 {
30 1 *ADDR_UNLOCK1 = 0xAA;
31 1 *ADDR_UNLOCK2 = 0x55;
32 1 *ADDR_UNLOCK1 = 0x80;
33 1 *ADDR_UNLOCK1 = 0xAA;
34 1 *ADDR_UNLOCK2 = 0x55;
35 1 *ADDR_UNLOCK1 = 0x10;
36 1 }
37
38 void unp_write() // 無保護寫
39 {
40 1 unsigned int i;
41 1 unsigned char *Des;
42 1 Des = START_ADDR;
43 1 for(i=0; i<128; i++)
44 1 {
45 2 *Des = 0x55; //全部寫0x55
46 2 Des++;
47 2 }
48 1 }
49
50 void p_write() // 帶保護寫
51 {
52 1 unsigned int i;
53 1 unsigned char *Des;
54 1 Des = START_ADDR;
55 1 *ADDR_UNLOCK1 = 0xAA;
C51 COMPILER V7.09 FLASH 08/01/2005 10:32:13 PAGE 2
56 1 *ADDR_UNLOCK2 = 0x55;
57 1 *ADDR_UNLOCK1 = 0xA0;
58 1 for(i=0; i<128; i++) //寫0~128到Flash
59 1 {
60 2 *Des = i;
61 2 Des++;
62 2 }
63 1 }
64
65 void main()
66 {
67 1 AUXR = 0x2;
68 1
69 1 p_write(); // 帶保護寫
70 1 delay();
71 1
72 1 unp_write(); // 不帶保護寫
73 1 delay();
74 1
75 1 unprotect(); // 去除保護
76 1 unp_write();
77 1 delay();
78 1
79 1 erase(); // 擦除
80 1
81 1 while(1);
82 1 }
83
84
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 195 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = ---- ----
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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