📄 flash.lst
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C51 COMPILER V6.23a FLASH 11/27/2003 16:50:20 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 /* UP-MP3DIY100 */
3 /* Beijing Universal Pioneering Technology Co., LTD */
4 /* CopyRighted,All right Reserved www.up-tech.com */
5 /* July,2003 */
6 /* 010-62387873 62381842 */
7 /****************************************************************/
8
9 #include <stdio.h>
10 #include <stdlib.h>
11 #include <string.h>
12
13
14 #include <REGSND1.H>
15 #include "flash.h"
16 #include "uart.h"
17
18 xdata BYTE rKM29UXDATA _at_ 0x4000;
19
20
21
22
23 unsigned int Check_Flash_Id(void)
24 {
25 1 int i;
26 1 unsigned int id;
27 1
28 1 FC_CMD;
29 1 rKM29UXDATA = 0x90;
30 1
31 1 FC_ADDR;
32 1 rKM29UXDATA = 0;
33 1 FC_DATA;
34 1
35 1 for(i=0;i<5;i++); //wait 100ns
36 1 id = rKM29UXDATA<<8;
37 1 for(i=0;i<5;i++); //wait 100ns
38 1 id += rKM29UXDATA;
39 1 FC_INACTIVE;
40 1 return id;
41 1 }
42 void Flash_Reset() //flash reset
43 {
44 1 int i;
45 1 // rPDATC = rPDATC | WP; //write unprotect
46 1 FC_CMD;
47 1 rKM29UXDATA = 0xff; //reset command
48 1 for (i=0;i<3000;i++); //delay
49 1 }
50 /********************************************************/
51 /*功能：擦除FLASH的1Block(对应文件系统为1Cluster) */
52 /* 每一个簇为16KB，因此KM29U128共有1024个簇 */
53 /*输入：unsigned int cluster/block(需要擦除的Block Number)*/
54 /*返回：OK或FAIL */
55 /********************************************************/
C51 COMPILER V6.23a FLASH 11/27/2003 16:50:20 PAGE 2
56
57 unsigned char Erase_Cluster(unsigned int cluster)
58 {
59 1 unsigned int blockPage = (cluster<<5);
60 1 // int i;
61 1
62 1 FC_CMD;
63 1 rKM29UXDATA = 0x60;
64 1
65 1 FC_ADDR;
66 1 rKM29UXDATA = blockPage & 0xff;
67 1 rKM29UXDATA = (blockPage>>8) & 0xff;
68 1
69 1 // for(i=0;i<2;i++); //tWC 50ns
70 1
71 1 FC_CMD;
72 1 rKM29UXDATA = 0xd0;
73 1
74 1 // for(i=0;i<3;i++);
75 1
76 1 FC_DATA;
77 1 WAITRB; //wait max 3ms
78 1
79 1 FC_CMD;
80 1 rKM29UXDATA = 0x70;
81 1 FC_DATA;
82 1 if (rKM29UXDATA & 0x1) //erase error
83 1 {
84 2 FC_INACTIVE;
85 2 return FALSE;
86 2 }
87 1 else
88 1 {
89 2 FC_INACTIVE;
90 2 return TRUE;
91 2 }
92 1 }
93
94 /*****************************************************************/
95 /*功能：读取FLASH的某个Block中的1page数据 */
96 /* 在文件系统中，有如下对应关系：Block=Cluster */
97 /* Page =Sector */
98 /*输入：unsigned int block,page,unsigned char *pPage(存放数据的地址)*/
99 /*****************************************************************/
100
101 void ReadPage(unsigned int block,unsigned int page,unsigned char *pPage)
102 {
103 1 int i=512;
104 1 unsigned int blockPage = (block<<5) + page;
105 1
106 1 FC_CMD;
107 1 rKM29UXDATA = 0x00;
108 1 FC_ADDR;
109 1 rKM29UXDATA = 0;
110 1 rKM29UXDATA = blockPage & 0xff;
111 1 rKM29UXDATA = (blockPage>>8) & 0xff;
112 1 // for(i=0;i<3;i++);
113 1 FC_DATA;
114 1 WAITRB; //random access ,wait max. 10us
115 1 // __RdPage528(pPage); //which is written with assemble in flash.s
116 1 while(i--) {*pPage++=rKM29UXDATA;}
117 1 FC_INACTIVE;
C51 COMPILER V6.23a FLASH 11/27/2003 16:50:20 PAGE 3
118 1 }
119
120 /*****************************************************************/
121 /*功能：向FLASH的某个Block中的1page写入数据 */
122 /* 在文件系统中，有如下对应关系：Block=Cluster */
123 /* Page =Sector */
124 /*输入：unsigned int block,page,unsigned char *pPage(存放数据的地址)*/
125 /*输出：0:Fail;1:OK */
126 /*****************************************************************/
127
128 int WritePage(unsigned int block,unsigned int page,unsigned char *pPage)
129 {
130 1 int i=512;
131 1 unsigned int blockPage = (block<<5) + page;
132 1 // unsigned char *Source; //the begin addr of data to write
133 1 // Source=pPage;
134 1 FC_CMD;
135 1 rKM29UXDATA = 0x80;
136 1 FC_ADDR;
137 1 rKM29UXDATA = 0;
138 1 rKM29UXDATA = blockPage & 0xff;
139 1 rKM29UXDATA = (blockPage>>8) & 0xff;
140 1 FC_DATA;
141 1 while(i--)
142 1 {rKM29UXDATA=*pPage++;} //data input->as the same as _WrPage528()
143 1 // __WrPage528(pPage); //which is written with assemble in flash.s
144 1
145 1 FC_CMD;
146 1 rKM29UXDATA = 0x10;
147 1 // for(i=0;i<10;i++); //twb=100ns. why is it 10? spec is false?
148 1 //No. It's because of LED of PE1.
149 1 WAITRB; //wait max 500us;
150 1 rKM29UXDATA = 0x70;
151 1 FC_DATA;
152 1 // for(i=0;i<3;i++); //twhr=60ns
153 1 if((rKM29UXDATA & 0x1)) //
154 1 {
155 2 FC_INACTIVE;
156 2 return 0;
157 2 }
158 1 else
159 1 {
160 2 FC_INACTIVE;
161 2 }
162 1 }
163
164
165
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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