📄 flash.lst
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C51 COMPILER V6.23a FLASH 11/27/2003 16:35:40 PAGE 1
C51 COMPILER V6.23a, COMPILATION OF MODULE FLASH
OBJECT MODULE PLACED IN FLASH.OBJ
COMPILER INVOKED BY: d:\SoftDev\Keil\C51\BIN\C51.EXE FLASH.C LARGE BROWSE DEBUG OBJECTEXTEND
stmt level source
1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <string.h>
4
5
6 #include <REGSND1.H>
7 #include "flash.h"
8 #include "uart.h"
9
10 xdata BYTE rKM29UXDATA _at_ 0x4000;
11
12 extern unsigned char databuff[SectorLength];
13
14 long int Current_Cluster,DataRead=0,DataRemain=0;
15 unsigned short FAT_Table[SectorLength];
16
17 unsigned int Check_Flash_Id(void)
18 {
19 1 int i;
20 1 unsigned int id;
21 1
22 1 FC_CMD;
23 1 rKM29UXDATA = 0x90;
24 1
25 1 FC_ADDR;
26 1 rKM29UXDATA = 0;
27 1 FC_DATA;
28 1
29 1 for(i=0;i<5;i++); //wait 100ns
30 1 id = rKM29UXDATA<<8;
31 1 for(i=0;i<5;i++); //wait 100ns
32 1 id += rKM29UXDATA;
33 1 FC_INACTIVE;
34 1 return id;
35 1 }
36 void Flash_Reset() //flash reset
37 {
38 1 int i;
39 1 // rPDATC = rPDATC | WP; //write unprotect
40 1 FC_CMD;
41 1 rKM29UXDATA = 0xff; //reset command
42 1 for (i=0;i<3000;i++); //delay
43 1 }
44 /********************************************************/
45 /*功能：擦除FLASH的1Block(对应文件系统为1Cluster) */
46 /* 每一个簇为16KB，因此KM29U128共有1024个簇 */
47 /*输入：unsigned int cluster/block(需要擦除的Block Number)*/
48 /*返回：OK或FAIL */
49 /********************************************************/
50
51 unsigned char Erase_Cluster(unsigned int cluster)
52 {
53 1 unsigned int blockPage = (cluster<<5);
54 1
55 1 FC_CMD;
C51 COMPILER V6.23a FLASH 11/27/2003 16:35:40 PAGE 2
56 1 rKM29UXDATA = 0x60;
57 1
58 1 FC_ADDR;
59 1 rKM29UXDATA = blockPage & 0xff;
60 1 rKM29UXDATA = (blockPage>>8) & 0xff;
61 1
62 1 // for(i=0;i<2;i++); //tWC 50ns
63 1
64 1 FC_CMD;
65 1 rKM29UXDATA = 0xd0;
66 1
67 1 // for(i=0;i<3;i++);
68 1
69 1 FC_DATA;
70 1 WAITRB; //wait max 3ms
71 1
72 1 FC_CMD;
73 1 rKM29UXDATA = 0x70;
74 1 FC_DATA;
75 1 if (rKM29UXDATA & 0x1) //erase error
76 1 {
77 2 FC_INACTIVE;
78 2 return FALSE;
79 2 }
80 1 else
81 1 {
82 2 FC_INACTIVE;
83 2 return TRUE;
84 2 }
85 1 }
86
87 /********************************************************/
88
89 int VerifyPage(unsigned int block,unsigned int page,unsigned char *buffer)
90 {
91 1 ReadPage(block,page,databuff);
92 1 if(strncmp((char *)databuff,(char *)buffer,528)==0)
93 1 return 1;
94 1 else
95 1 return 0;
96 1 }
97
98 /*****************************************************************/
99 /*功能：读取FLASH的某个Block中的1page数据 */
100 /* 在文件系统中，有如下对应关系：Block=Cluster */
101 /* Page =Sector */
102 /*输入：unsigned int block,page,unsigned char *pPage(存放数据的地址)*/
103 /*****************************************************************/
104
105 void ReadPage(unsigned int block,unsigned int page,unsigned char *pPage)
106 {
107 1 int i=512;
108 1 unsigned int blockPage = (block<<5) + page;
109 1
110 1 FC_CMD;
111 1 rKM29UXDATA = 0x00;
112 1 FC_ADDR;
113 1 rKM29UXDATA = 0;
114 1 rKM29UXDATA = blockPage & 0xff;
115 1 rKM29UXDATA = (blockPage>>8) & 0xff;
116 1 // for(i=0;i<3;i++);
117 1 FC_DATA;
C51 COMPILER V6.23a FLASH 11/27/2003 16:35:40 PAGE 3
118 1 WAITRB; //random access ,wait max. 10us
119 1 // __RdPage528(pPage); //which is written with assemble in flash.s
120 1 while(i--) {*pPage++=rKM29UXDATA;}
121 1 FC_INACTIVE;
122 1 }
123
124 /*****************************************************************/
125 /*功能：向FLASH的某个Block中的1page写入数据 */
126 /* 在文件系统中，有如下对应关系：Block=Cluster */
127 /* Page =Sector */
128 /*输入：unsigned int block,page,unsigned char *pPage(存放数据的地址)*/
129 /*输出：0:Fail;1:OK */
130 /*****************************************************************/
131
132 int WritePage(unsigned int block,unsigned int page,unsigned char *pPage)
133 {
134 1 int i=512;
135 1 unsigned int blockPage = (block<<5) + page;
136 1 // unsigned char *Source; //the begin addr of data to write
137 1 // Source=pPage;
138 1 FC_CMD;
139 1 rKM29UXDATA = 0x80;
140 1 FC_ADDR;
141 1 rKM29UXDATA = 0;
142 1 rKM29UXDATA = blockPage & 0xff;
143 1 rKM29UXDATA = (blockPage>>8) & 0xff;
144 1 FC_DATA;
145 1 while(i--)
146 1 {rKM29UXDATA=*pPage++;} //data input->as the same as _WrPage528()
147 1 // __WrPage528(pPage); //which is written with assemble in flash.s
148 1
149 1 FC_CMD;
150 1 rKM29UXDATA = 0x10;
151 1 // for(i=0;i<10;i++); //twb=100ns. why is it 10? spec is false?
152 1 //No. It's because of LED of PE1.
153 1 WAITRB; //wait max 500us;
154 1 rKM29UXDATA = 0x70;
155 1 FC_DATA;
156 1 // for(i=0;i<3;i++); //twhr=60ns
157 1 if((rKM29UXDATA & 0x1)) //
158 1 {
159 2 FC_INACTIVE;
160 2 return 0;
161 2 }
162 1 else
163 1 {
164 2 FC_INACTIVE;
165 2 #if (WRITEVERIFY==1)
166 2 return VerifyPage(block,page,pPage);
167 2 #else
return 1;
#endif
170 2 }
171 1 }
172
173
174
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 553 ----
CONSTANT SIZE = ---- ----
C51 COMPILER V6.23a FLASH 11/27/2003 16:35:40 PAGE 4
XDATA SIZE = 1036 15
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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