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C51 COMPILER V8.02 HAL 04/29/2007 12:48:52 PAGE 1
C51 COMPILER V8.02, COMPILATION OF MODULE HAL
OBJECT MODULE PLACED IN HAL.OBJ
COMPILER INVOKED BY: D:\Keil\C51\BIN\C51.EXE HAL.C BROWSE DEBUG OBJECTEXTEND
line level source
1 #include "common.h"
2 #include "HAL.H"
3
4 extern unsigned char xdata DBUF[BUFFER_LENGTH];
5 //============================================================
6 //往SD卡定一字節 www.mcusky.com
7 void SdWrite(unsigned char n)
8 {
9 1
10 1 unsigned char i;
11 1
12 1 for(i=8;i;i--)
13 1 {
14 2 SD_CLK=0;
15 2 SD_DI=(n&0x80);
16 2 n<<=1;
17 2 SD_CLK=1;
18 2 }
19 1 SD_DI=1;
20 1 }
21 //================================================================
22 //從SD卡讀一字節 www.mcusky.com
23 unsigned char SdRead()
24 {
25 1 unsigned char n,i;
26 1 for(i=8;i;i--)
27 1 {
28 2 SD_CLK=0;
29 2 SD_CLK=1;
30 2 n<<=1;
31 2 if(SD_DO) n|=1;
32 2
33 2 }
34 1 return n;
35 1 }
36 //================================================================
37 //讀SD卡響應 www.mcusky.com
38 unsigned char SdResponse()
39 {
40 1 unsigned char i=0,response;
41 1
42 1 while(i<=8)
43 1 {
44 2 response=SdRead();
45 2 if(response==0x00)
46 2 break;
47 2 if(response==0x01)
48 2 break;
49 2 i++;
50 2 }
51 1 return response;
52 1 }
53 //================================================================
54 void SdCommand(unsigned char command, unsigned long argument, unsigned char CRC)
55 {
C51 COMPILER V8.02 HAL 04/29/2007 12:48:52 PAGE 2
56 1
57 1 SdWrite(command|0x40);
58 1 SdWrite(((unsigned char *)&argument)[0]);
59 1 SdWrite(((unsigned char *)&argument)[1]);
60 1 SdWrite(((unsigned char *)&argument)[2]);
61 1 SdWrite(((unsigned char *)&argument)[3]);
62 1 SdWrite(CRC);
63 1 }
64 //================================================================
65 unsigned char SdInit(void)
66 {
67 1 int delay=0, trials=0;
68 1 unsigned char i;
69 1 unsigned char response=0x01;
70 1
71 1 SD_CS=1;
72 1 for(i=0;i<=9;i++)
73 1 SdWrite(0xff);
74 1 SD_CS=0;
75 1
76 1 //Send Command 0 to put MMC in SPI mode
77 1 SdCommand(0x00,0,0x95);
78 1
79 1
80 1 response=SdResponse();
81 1
82 1 if(response!=0x01)
83 1 {
84 2 return 0;
85 2 }
86 1
87 1 while(response==0x01)
88 1 {
89 2 SD_CS=1;
90 2 SdWrite(0xff);
91 2 SD_CS=0;
92 2 SdCommand(0x01,0x00ffc000,0xff);
93 2 response=SdResponse();
94 2 }
95 1
96 1 SD_CS=1;
97 1 SdWrite(0xff);
98 1 return 1;
99 1 }
100 //================================================================
101 unsigned char SdWriteBlock(unsigned char *Block, unsigned long address)
102 {
103 1 unsigned char count;
104 1 unsigned char dataResp;
105 1 //Block size is 512 bytes exactly
106 1 //First Lower SS
107 1
108 1 SD_CS=0;
109 1 //Then send write command
110 1 SdCommand(0x18,address,0xff);
111 1
112 1 if(SdResponse()==00)
113 1 {
114 2 SdWrite(0xff);
115 2 SdWrite(0xff);
116 2 SdWrite(0xff);
117 2 //command was a success - now send data
C51 COMPILER V8.02 HAL 04/29/2007 12:48:52 PAGE 3
118 2 //start with DATA TOKEN = 0xFE
119 2 SdWrite(0xfe);
120 2 //now send data
121 2 for(count=0;count<128;count++)
122 2 {
123 3 SdWrite(*Block++);
124 3 SdWrite(*Block++);
125 3 SdWrite(*Block++);
126 3 SdWrite(*Block++);
127 3 }
128 2 //data block sent - now send checksum
129 2 SdWrite(0xff);
130 2 SdWrite(0xff);
131 2 //Now read in the DATA RESPONSE token
132 2 dataResp=SdRead();
133 2 //Following the DATA RESPONSE token
134 2 //are a number of BUSY bytes
135 2 //a zero byte indicates the MMC is busy
136 2
137 2 while(SdRead()==0);
138 2
139 2 dataResp=dataResp&0x0f; //mask the high byte of the DATA RESPONSE token
140 2 SD_CS=1;
141 2 SdWrite(0xff);
142 2 if(dataResp==0x0b)
143 2 {
144 3 //printf("DATA WAS NOT ACCEPTED BY CARD -- CRC ERROR\n");
145 3 return 0;
146 3 }
147 2 if(dataResp==0x05)
148 2 return 1;
149 2
150 2 //printf("Invalid data Response token.\n");
151 2 return 0;
152 2 }
153 1 //printf("Command 0x18 (Write) was not received by the MMC.\n");
154 1 return 0;
155 1 }
156 //=======================================================================
157 unsigned char SdReadBlock(unsigned char *Block, unsigned long address)
158 {
159 1 unsigned char count;
160 1 //Block size is 512 bytes exactly
161 1 //First Lower SS
162 1
163 1 // printf("MMC_read_block\n");
164 1
165 1 SD_CS=0;
166 1 //Then send write command
167 1 SdCommand(0x11,address,0xff);
168 1
169 1 if(SdResponse()==00)
170 1 {
171 2 //command was a success - now send data
172 2 //start with DATA TOKEN = 0xFE
173 2 while(SdRead()!=0xfe);
174 2
175 2 for(count=0;count<128;count++)
176 2 {
177 3 *Block++=SdRead();
178 3 *Block++=SdRead();
179 3 *Block++=SdRead();
C51 COMPILER V8.02 HAL 04/29/2007 12:48:52 PAGE 4
180 3 *Block++=SdRead();
181 3 }
182 2 //data block sent - now send checksum
183 2 SdRead();
184 2 SdRead();
185 2 //Now read in the DATA RESPONSE token
186 2 SD_CS=1;
187 2 SdRead();
188 2 return 1;
189 2 }
190 1 // printf("Command 0x11 (Read) was not received by the MMC.\n");
191 1 return 0;
192 1 }
193 //================================================================
194 void ComSendByte(unsigned char c)
195 {
196 1 SBUF=c;
197 1 while(!TI);
198 1 TI=0;
199 1 }
200 //================================================================
201 void DelayMs(unsigned char nFactor)
202 {
203 1 return;
204 1 /*
205 1 unsigned char i;
206 1 unsigned int j;
207 1
208 1 for(i=0; i<nFactor; i++)
209 1 {
210 1 for(j=0;j<1000;j++)
211 1 j=j;
212 1 }
213 1 */
214 1 }
*** WARNING C280 IN LINE 201 OF HAL.C: 'nFactor': unreferenced local variable
215
216 unsigned int LSwapINT16(unsigned short dData1,unsigned short dData2)
217 {
218 1 unsigned int xdata dData;
219 1 dData = ((dData2<<8)&0xff00)|(dData1&0x00ff);
220 1 return dData;
221 1 }
222
223 unsigned long LSwapINT32(unsigned long dData1,unsigned long dData2,unsigned long dData3,unsigned long dDat
-a4)
224 {
225 1 unsigned long xdata dData;
226 1 dData = ((dData4<<24)&0xff000000)|((dData3<<16)&0xff0000)|((dData2<<8)&0xff00)|(dData1&0xff);
227 1 return dData;
228 1 }
229
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 671 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- 6
PDATA SIZE = ---- ----
DATA SIZE = ---- 41
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
C51 COMPILER V8.02 HAL 04/29/2007 12:48:52 PAGE 5
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 1 WARNING(S), 0 ERROR(S)
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