📄 iso14443a.lst
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C51 COMPILER V8.05a ISO14443A 07/05/2010 23:34:45 PAGE 1
C51 COMPILER V8.05a, COMPILATION OF MODULE ISO14443A
OBJECT MODULE PLACED IN ISO14443A.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE ISO14443A.C ROM(COMPACT) BROWSE DEBUG OBJECTEXTEND
line level source
1 #include "reg52.h"
2 #include "string.h"
3 #include "main.h"
4 #include "slrc632.h"
5 #include "iso14443a.h"
6 #define FSD 64 //RC500 FIFO BUFFER SIZE
7 extern bit g_bIblock;
8
9
10
11 extern struct TranSciveBuffer{unsigned char MfCommand;
12 unsigned int MfLength;
13 unsigned char MfData[64];
14 };
15
16 /////////////////////////////////////////////////////////////////////
17 //功 能：寻卡
18 //参数说明: req_code[IN]:寻卡方式
19 // 0x52 = 寻感应区内所有符合14443A标准的卡
20 // 0x26 = 寻未进入休眠状态的卡
21 // pTagType[OUT]：卡片类型代码
22 // 0x4400 = Mifare_UltraLight
23 // 0x0400 = Mifare_One(S50)
24 // 0x0200 = Mifare_One(S70)
25 // 0x0800 = Mifare_Pro
26 // 0x0403 = Mifare_ProX
27 // 0x4403 = Mifare_DESFire
28 //返 回: 成功返回MI_OK
29 /////////////////////////////////////////////////////////////////////
30 char PcdRequest(unsigned char req_code,unsigned char *pTagType)
31 {
32 1 char status;
33 1 struct TranSciveBuffer MfComData;
34 1 struct TranSciveBuffer *pi;
35 1 pi = &MfComData;
36 1
37 1 WriteRawRC(RegChannelRedundancy,0x03);
38 1 ClearBitMask(RegControl,0x08);
39 1 WriteRawRC(RegBitFraming,0x07);
40 1 SetBitMask(RegTxControl,0x03);
41 1 PcdSetTmo(4);
42 1 MfComData.MfCommand = PCD_TRANSCEIVE;
43 1 MfComData.MfLength = 1;
44 1 MfComData.MfData[0] = req_code;
45 1
46 1 status = PcdComTransceive(pi);
47 1
48 1 if (!status)
49 1 {
50 2 if (MfComData.MfLength != 0x10)
51 2 { status = MI_BITCOUNTERR; }
52 2 }
53 1 *pTagType = MfComData.MfData[0];
54 1 *(pTagType+1) = MfComData.MfData[1];
55 1
C51 COMPILER V8.05a ISO14443A 07/05/2010 23:34:45 PAGE 2
56 1 return status;
57 1 }
58
59 /////////////////////////////////////////////////////////////////////
60 //防冲撞
61 //input: g_cSNR=存放序列号(4byte)的内存单元首地址
62 //output:status=MI_OK:成功
63 // 得到的序列号放入指定单元
64 /////////////////////////////////////////////////////////////////////
65 char PcdAnticoll(unsigned char *pSnr)
66 {
67 1 char status ;
68 1 unsigned char i;
69 1 unsigned char ucBits;
70 1 unsigned char ucBytes;
71 1 unsigned char snr_check = 0;
72 1 unsigned char ucCollPosition = 0;
73 1 unsigned char ucTemp;
74 1 unsigned char idata ucSNR[5] = {0, 0, 0, 0 ,0};
75 1 struct TranSciveBuffer MfComData;
76 1 struct TranSciveBuffer *pi;
77 1 pi = &MfComData;
78 1
79 1 WriteRawRC(RegDecoderControl,0x28);
80 1 ClearBitMask(RegControl,0x08);
81 1 WriteRawRC(RegChannelRedundancy,0x03);
82 1 PcdSetTmo(4);
83 1
84 1
85 1 do
86 1 {
87 2 ucBits = (ucCollPosition) % 8;
88 2 if (ucBits != 0)
89 2 {
90 3 ucBytes = ucCollPosition / 8 + 1;
91 3 WriteRawRC(RegBitFraming, (ucBits << 4) + ucBits);
92 3 }
93 2 else
94 2 {
95 3 ucBytes = ucCollPosition / 8;
96 3 }
97 2
98 2 MfComData.MfCommand = PCD_TRANSCEIVE;
99 2 MfComData.MfData[0] = PICC_ANTICOLL1;
100 2 MfComData.MfData[1] = 0x20 + ((ucCollPosition / 8) << 4) + (ucBits & 0x0F);
101 2 for (i=0; i<ucBytes; i++)
102 2 {
103 3 MfComData.MfData[i + 2] = ucSNR[i];
104 3 }
105 2 MfComData.MfLength = ucBytes + 2;
106 2
107 2 status = PcdComTransceive(pi);
108 2
109 2 ucTemp = ucSNR[(ucCollPosition / 8)];
110 2 if (status == MI_COLLERR)
111 2 {
112 3 for (i=0; i < 5 - (ucCollPosition / 8); i++)
113 3 {
114 4 ucSNR[i + (ucCollPosition / 8)] = MfComData.MfData[i+1];
115 4 }
116 3 ucSNR[(ucCollPosition / 8)] |= ucTemp;
117 3 ucCollPosition = MfComData.MfData[0];
C51 COMPILER V8.05a ISO14443A 07/05/2010 23:34:45 PAGE 3
118 3 }
119 2 else if (status == MI_OK)
120 2 {
121 3 for (i=0; i < (MfComData.MfLength / 8); i++)
122 3 {
123 4 ucSNR[4 - i] = MfComData.MfData[MfComData.MfLength/8 - i - 1];
124 4 }
125 3 ucSNR[(ucCollPosition / 8)] |= ucTemp;
126 3 }
127 2 } while (status == MI_COLLERR);
128 1
129 1
130 1 if (status == MI_OK)
131 1 {
132 2 for (i=0; i<4; i++)
133 2 {
134 3 *(pSnr+i) = ucSNR[i];
135 3 snr_check ^= ucSNR[i];
136 3 }
137 2 if (snr_check != ucSNR[i])
138 2 { status = MI_COM_ERR; }
139 2 }
140 1
141 1 ClearBitMask(RegDecoderControl,0x20);
142 1 return status;
143 1 }
144
145 /////////////////////////////////////////////////////////////////////
146 //选定一张卡
147 //input:g_cSNR=序列号
148 /////////////////////////////////////////////////////////////////////
149 char PcdSelect(unsigned char *pSnr,unsigned char *pSize)
150 {
151 1 unsigned char i;
152 1 char status;
153 1 unsigned char snr_check = 0;
154 1 struct TranSciveBuffer MfComData;
155 1 struct TranSciveBuffer *pi;
156 1 pi = &MfComData;
157 1
158 1 WriteRawRC(RegChannelRedundancy,0x0F);
159 1 ClearBitMask(RegControl,0x08);
160 1 PcdSetTmo(4);
161 1
162 1 MfComData.MfCommand = PCD_TRANSCEIVE;
163 1 MfComData.MfLength = 7;
164 1 MfComData.MfData[0] = PICC_ANTICOLL1;
165 1 MfComData.MfData[1] = 0x70;
166 1 for (i=0; i<4; i++)
167 1 {
168 2 snr_check ^= *(pSnr+i);
169 2 MfComData.MfData[i+2] = *(pSnr+i);
170 2 }
171 1 MfComData.MfData[6] = snr_check;
172 1
173 1 status = PcdComTransceive(pi);
174 1
175 1 if (status == MI_OK)
176 1 {
177 2 if (MfComData.MfLength != 0x8)
178 2 { status = MI_BITCOUNTERR; }
179 2 else
C51 COMPILER V8.05a ISO14443A 07/05/2010 23:34:45 PAGE 4
180 2 { *pSize = MfComData.MfData[0]; }
181 2 }
182 1
183 1 return status;
184 1 }
185
186 /////////////////////////////////////////////////////////////////////
187 //将Mifare_One卡密钥转换为RC500接收格式
188 //input: uncoded=6字节未转换的密钥
189 //output:coded=12字节转换后的密钥
190 /////////////////////////////////////////////////////////////////////
191 char ChangeCodeKey(unsigned char *pUncoded,unsigned char *pCoded)
192 {
193 1 unsigned char cnt=0;
194 1 unsigned char ln=0;
195 1 unsigned char hn=0;
196 1
197 1 for (cnt=0; cnt<6; cnt++)
198 1 {
199 2 ln = pUncoded[cnt] & 0x0F;
200 2 hn = pUncoded[cnt] >> 4;
201 2 pCoded[cnt*2+1] = (~ln<<4) | ln;
202 2 pCoded[cnt*2] = (~hn<<4) | hn;
203 2 }
204 1 return MI_OK;
205 1 }
206
207 /*
208 /////////////////////////////////////////////////////////////////////
209 //将存在RC500的EEPROM中的密钥匙调入RC500的FIFO
210 //input: startaddr=EEPROM地址
211 /////////////////////////////////////////////////////////////////////
212 char PcdLoadKeyE2(unsigned int startaddr)
213 {
214 char status;
215 struct TranSciveBuffer MfComData;
216 struct TranSciveBuffer *pi;
217 pi = &MfComData;
218
219 MfComData.MfCommand = PCD_LOADKEYE2;
220 MfComData.MfLength = 2;
221 MfComData.MfData[0] = startaddr & 0xFF;
222 MfComData.MfData[1] = (startaddr >> 8) & 0xFF;
223
224 status = PcdComTransceive(pi);
225
226 return status;
227 }
228 */
229
230
231 /////////////////////////////////////////////////////////////////////
232 //功能：将已转换格式后的密钥送到RC500的FIFO中
233 //input:keys=密钥
234 /////////////////////////////////////////////////////////////////////
235 char PcdAuthKey(unsigned char *pKeys)
236 {
237 1 char status;
238 1 struct TranSciveBuffer MfComData;
239 1 struct TranSciveBuffer *pi;
240 1 pi = &MfComData;
241 1
C51 COMPILER V8.05a ISO14443A 07/05/2010 23:34:45 PAGE 5
242 1 PcdSetTmo(4);
243 1 MfComData.MfCommand = PCD_LOADKEY;
244 1 MfComData.MfLength = 12;
245 1 memcpy(&MfComData.MfData[0], pKeys, 12);
246 1
247 1 status = PcdComTransceive(pi);
248 1
249 1 return status;
250 1 }
251
252 /////////////////////////////////////////////////////////////////////
253 //功能：用存放RC500的FIFO中的密钥和卡上的密钥进行验证
254 //input:auth_mode=验证方式,0x60:验证A密钥,0x61:验证B密钥
255 // block=要验证的绝对块号
256 // g_cSNR=序列号首地址
257 /////////////////////////////////////////////////////////////////////
258 char PcdAuthState(unsigned char auth_mode,unsigned char block,unsigned char *pSnr)
259 {
260 1 char status;
261 1 struct TranSciveBuffer MfComData;
262 1 struct TranSciveBuffer *pi;
263 1 pi = &MfComData;
264 1
265 1 WriteRawRC(RegChannelRedundancy,0x0F);
266 1 PcdSetTmo(4);
267 1 MfComData.MfCommand = PCD_AUTHENT1;
268 1 MfComData.MfLength = 6;
269 1 MfComData.MfData[0] = auth_mode;
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