📄 flash.lst
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C51 COMPILER V6.23a FLASH 11/27/2003 16:49:26 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
2
3 #include <stdio.h>
4 #include <stdlib.h>
5 #include <string.h>
6
7
8 #include <REGSND1.H>
9 #include "flash.h"
10 #include "uart.h"
11
12 xdata BYTE rKM29UXDATA _at_ 0x4000;
13
14
15
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 // int i;
55 1
C51 COMPILER V6.23a FLASH 11/27/2003 16:49:26 PAGE 2
56 1 FC_CMD;
57 1 rKM29UXDATA = 0x60;
58 1
59 1 FC_ADDR;
60 1 rKM29UXDATA = blockPage & 0xff;
61 1 rKM29UXDATA = (blockPage>>8) & 0xff;
62 1
63 1 // for(i=0;i<2;i++); //tWC 50ns
64 1
65 1 FC_CMD;
66 1 rKM29UXDATA = 0xd0;
67 1
68 1 // for(i=0;i<3;i++);
69 1
70 1 FC_DATA;
71 1 WAITRB; //wait max 3ms
72 1
73 1 FC_CMD;
74 1 rKM29UXDATA = 0x70;
75 1 FC_DATA;
76 1 if (rKM29UXDATA & 0x1) //erase error
77 1 {
78 2 FC_INACTIVE;
79 2 return FALSE;
80 2 }
81 1 else
82 1 {
83 2 FC_INACTIVE;
84 2 return TRUE;
85 2 }
86 1 }
87
88 /*****************************************************************/
89 /*功能：读取FLASH的某个Block中的1page数据 */
90 /* 在文件系统中，有如下对应关系：Block=Cluster */
91 /* Page =Sector */
92 /*输入：unsigned int block,page,unsigned char *pPage(存放数据的地址)*/
93 /*****************************************************************/
94
95 void ReadPage(unsigned int block,unsigned int page,unsigned char *pPage)
96 {
97 1 int i=512;
98 1 unsigned int blockPage = (block<<5) + page;
99 1
100 1 FC_CMD;
101 1 rKM29UXDATA = 0x00;
102 1 FC_ADDR;
103 1 rKM29UXDATA = 0;
104 1 rKM29UXDATA = blockPage & 0xff;
105 1 rKM29UXDATA = (blockPage>>8) & 0xff;
106 1 // for(i=0;i<3;i++);
107 1 FC_DATA;
108 1 WAITRB; //random access ,wait max. 10us
109 1 // __RdPage528(pPage); //which is written with assemble in flash.s
110 1 while(i--) {*pPage++=rKM29UXDATA;}
111 1 FC_INACTIVE;
112 1 }
113
114 /*****************************************************************/
115 /*功能：向FLASH的某个Block中的1page写入数据 */
116 /* 在文件系统中，有如下对应关系：Block=Cluster */
117 /* Page =Sector */
C51 COMPILER V6.23a FLASH 11/27/2003 16:49:26 PAGE 3
118 /*输入：unsigned int block,page,unsigned char *pPage(存放数据的地址)*/
119 /*输出：0:Fail;1:OK */
120 /*****************************************************************/
121
122 int WritePage(unsigned int block,unsigned int page,unsigned char *pPage)
123 {
124 1 int i=512;
125 1 unsigned int blockPage = (block<<5) + page;
126 1 // unsigned char *Source; //the begin addr of data to write
127 1 // Source=pPage;
128 1 FC_CMD;
129 1 rKM29UXDATA = 0x80;
130 1 FC_ADDR;
131 1 rKM29UXDATA = 0;
132 1 rKM29UXDATA = blockPage & 0xff;
133 1 rKM29UXDATA = (blockPage>>8) & 0xff;
134 1 FC_DATA;
135 1 while(i--)
136 1 {rKM29UXDATA=*pPage++;} //data input->as the same as _WrPage528()
137 1 // __WrPage528(pPage); //which is written with assemble in flash.s
138 1
139 1 FC_CMD;
140 1 rKM29UXDATA = 0x10;
141 1 // for(i=0;i<10;i++); //twb=100ns. why is it 10? spec is false?
142 1 //No. It's because of LED of PE1.
143 1 WAITRB; //wait max 500us;
144 1 rKM29UXDATA = 0x70;
145 1 FC_DATA;
146 1 // for(i=0;i<3;i++); //twhr=60ns
147 1 if((rKM29UXDATA & 0x1)) //
148 1 {
149 2 FC_INACTIVE;
150 2 return 0;
151 2 }
152 1 else
153 1 {
154 2 FC_INACTIVE;
155 2 }
156 1 }
157
158
159
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 452 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- 10
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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