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1 | //-----------------------------------------------------------------------------\r | |
2 | // Routines to support ISO 15693. This includes both the reader software and\r | |
3 | // the `fake tag' modes, but at the moment I've implemented only the reader\r | |
4 | // stuff, and that barely.\r | |
5 | // Jonathan Westhues, split Nov 2006\r | |
6 | \r | |
7 | // Modified by Greg Jones, Jan 2009 to perform modulation onboard in arm rather than on PC\r | |
8 | // Also added additional reader commands (SELECT, READ etc.)\r | |
9 | \r | |
10 | //-----------------------------------------------------------------------------\r | |
11 | #include <proxmark3.h>\r | |
12 | #include "apps.h"\r | |
13 | #include <stdio.h>\r | |
14 | #include <stdlib.h>\r | |
15 | \r | |
16 | // FROM winsrc\prox.h //////////////////////////////////\r | |
17 | #define arraylen(x) (sizeof(x)/sizeof((x)[0]))\r | |
18 | \r | |
19 | //-----------------------------------------------------------------------------\r | |
20 | // Map a sequence of octets (~layer 2 command) into the set of bits to feed\r | |
21 | // to the FPGA, to transmit that command to the tag.\r | |
22 | //-----------------------------------------------------------------------------\r | |
23 | \r | |
24 | // The sampling rate is 106.353 ksps/s, for T = 18.8 us\r | |
25 | \r | |
26 | // SOF defined as\r | |
27 | // 1) Unmodulated time of 56.64us\r | |
28 | // 2) 24 pulses of 423.75khz\r | |
29 | // 3) logic '1' (unmodulated for 18.88us followed by 8 pulses of 423.75khz)\r | |
30 | \r | |
31 | static const int FrameSOF[] = {\r | |
32 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\r | |
33 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\r | |
34 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,\r | |
35 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,\r | |
36 | -1, -1, -1, -1,\r | |
37 | -1, -1, -1, -1,\r | |
38 | 1, 1, 1, 1,\r | |
39 | 1, 1, 1, 1\r | |
40 | };\r | |
41 | static const int Logic0[] = {\r | |
42 | 1, 1, 1, 1,\r | |
43 | 1, 1, 1, 1,\r | |
44 | -1, -1, -1, -1,\r | |
45 | -1, -1, -1, -1\r | |
46 | };\r | |
47 | static const int Logic1[] = {\r | |
48 | -1, -1, -1, -1,\r | |
49 | -1, -1, -1, -1,\r | |
50 | 1, 1, 1, 1,\r | |
51 | 1, 1, 1, 1\r | |
52 | };\r | |
53 | \r | |
54 | // EOF defined as\r | |
55 | // 1) logic '0' (8 pulses of 423.75khz followed by unmodulated for 18.88us)\r | |
56 | // 2) 24 pulses of 423.75khz\r | |
57 | // 3) Unmodulated time of 56.64us\r | |
58 | \r | |
59 | static const int FrameEOF[] = {\r | |
60 | 1, 1, 1, 1,\r | |
61 | 1, 1, 1, 1,\r | |
62 | -1, -1, -1, -1,\r | |
63 | -1, -1, -1, -1,\r | |
64 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,\r | |
65 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,\r | |
66 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\r | |
67 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1\r | |
68 | };\r | |
69 | \r | |
70 | static void CodeIso15693AsReader(BYTE *cmd, int n)\r | |
71 | {\r | |
72 | int i, j;\r | |
73 | \r | |
74 | ToSendReset();\r | |
75 | \r | |
76 | // Give it a bit of slack at the beginning\r | |
77 | for(i = 0; i < 24; i++) {\r | |
78 | ToSendStuffBit(1);\r | |
79 | }\r | |
80 | \r | |
81 | ToSendStuffBit(0);\r | |
82 | ToSendStuffBit(1);\r | |
83 | ToSendStuffBit(1);\r | |
84 | ToSendStuffBit(1);\r | |
85 | ToSendStuffBit(1);\r | |
86 | ToSendStuffBit(0);\r | |
87 | ToSendStuffBit(1);\r | |
88 | ToSendStuffBit(1);\r | |
89 | for(i = 0; i < n; i++) {\r | |
90 | for(j = 0; j < 8; j += 2) {\r | |
91 | int these = (cmd[i] >> j) & 3;\r | |
92 | switch(these) {\r | |
93 | case 0:\r | |
94 | ToSendStuffBit(1);\r | |
95 | ToSendStuffBit(0);\r | |
96 | ToSendStuffBit(1);\r | |
97 | ToSendStuffBit(1);\r | |
98 | ToSendStuffBit(1);\r | |
99 | ToSendStuffBit(1);\r | |
100 | ToSendStuffBit(1);\r | |
101 | ToSendStuffBit(1);\r | |
102 | break;\r | |
103 | case 1:\r | |
104 | ToSendStuffBit(1);\r | |
105 | ToSendStuffBit(1);\r | |
106 | ToSendStuffBit(1);\r | |
107 | ToSendStuffBit(0);\r | |
108 | ToSendStuffBit(1);\r | |
109 | ToSendStuffBit(1);\r | |
110 | ToSendStuffBit(1);\r | |
111 | ToSendStuffBit(1);\r | |
112 | break;\r | |
113 | case 2:\r | |
114 | ToSendStuffBit(1);\r | |
115 | ToSendStuffBit(1);\r | |
116 | ToSendStuffBit(1);\r | |
117 | ToSendStuffBit(1);\r | |
118 | ToSendStuffBit(1);\r | |
119 | ToSendStuffBit(0);\r | |
120 | ToSendStuffBit(1);\r | |
121 | ToSendStuffBit(1);\r | |
122 | break;\r | |
123 | case 3:\r | |
124 | ToSendStuffBit(1);\r | |
125 | ToSendStuffBit(1);\r | |
126 | ToSendStuffBit(1);\r | |
127 | ToSendStuffBit(1);\r | |
128 | ToSendStuffBit(1);\r | |
129 | ToSendStuffBit(1);\r | |
130 | ToSendStuffBit(1);\r | |
131 | ToSendStuffBit(0);\r | |
132 | break;\r | |
133 | }\r | |
134 | }\r | |
135 | }\r | |
136 | ToSendStuffBit(1);\r | |
137 | ToSendStuffBit(1);\r | |
138 | ToSendStuffBit(0);\r | |
139 | ToSendStuffBit(1);\r | |
140 | \r | |
141 | // And slack at the end, too.\r | |
142 | for(i = 0; i < 24; i++) {\r | |
143 | ToSendStuffBit(1);\r | |
144 | }\r | |
145 | }\r | |
146 | \r | |
147 | //-----------------------------------------------------------------------------\r | |
148 | // The CRC used by ISO 15693.\r | |
149 | //-----------------------------------------------------------------------------\r | |
150 | static WORD Crc(BYTE *v, int n)\r | |
151 | {\r | |
152 | DWORD reg;\r | |
153 | int i, j;\r | |
154 | \r | |
155 | reg = 0xffff;\r | |
156 | for(i = 0; i < n; i++) {\r | |
157 | reg = reg ^ ((DWORD)v[i]);\r | |
158 | for (j = 0; j < 8; j++) {\r | |
159 | if (reg & 0x0001) {\r | |
160 | reg = (reg >> 1) ^ 0x8408;\r | |
161 | } else {\r | |
162 | reg = (reg >> 1);\r | |
163 | }\r | |
164 | }\r | |
165 | }\r | |
166 | \r | |
167 | return ~reg;\r | |
168 | }\r | |
169 | \r | |
170 | char *strcat(char *dest, const char *src)\r | |
171 | {\r | |
172 | size_t dest_len = strlen(dest);\r | |
173 | size_t i;\r | |
174 | \r | |
175 | for (i = 0 ; src[i] != '\0' ; i++)\r | |
176 | dest[dest_len + i] = src[i];\r | |
177 | dest[dest_len + i] = '\0';\r | |
178 | \r | |
179 | return dest;\r | |
180 | }\r | |
181 | \r | |
182 | ////////////////////////////////////////// code to do 'itoa'\r | |
183 | \r | |
184 | /* reverse: reverse string s in place */\r | |
185 | void reverse(char s[])\r | |
186 | {\r | |
187 | int c, i, j;\r | |
188 | \r | |
189 | for (i = 0, j = strlen(s)-1; i<j; i++, j--) {\r | |
190 | c = s[i];\r | |
191 | s[i] = s[j];\r | |
192 | s[j] = c;\r | |
193 | }\r | |
194 | }\r | |
195 | \r | |
196 | /* itoa: convert n to characters in s */\r | |
197 | void itoa(int n, char s[])\r | |
198 | {\r | |
199 | int i, sign;\r | |
200 | \r | |
201 | if ((sign = n) < 0) /* record sign */\r | |
202 | n = -n; /* make n positive */\r | |
203 | i = 0;\r | |
204 | do { /* generate digits in reverse order */\r | |
205 | s[i++] = n % 10 + '0'; /* get next digit */\r | |
206 | } while ((n /= 10) > 0); /* delete it */\r | |
207 | if (sign < 0)\r | |
208 | s[i++] = '-';\r | |
209 | s[i] = '\0';\r | |
210 | reverse(s);\r | |
211 | }\r | |
212 | \r | |
213 | //////////////////////////////////////// END 'itoa' CODE\r | |
214 | \r | |
215 | //-----------------------------------------------------------------------------\r | |
216 | // Encode (into the ToSend buffers) an identify request, which is the first\r | |
217 | // thing that you must send to a tag to get a response.\r | |
218 | //-----------------------------------------------------------------------------\r | |
219 | static void BuildIdentifyRequest(void)\r | |
220 | {\r | |
221 | BYTE cmd[5];\r | |
222 | \r | |
223 | WORD crc;\r | |
224 | // one sub-carrier, inventory, 1 slot, fast rate\r | |
225 | // AFI is at bit 5 (1<<4) when doing an INVENTORY\r | |
226 | cmd[0] = (1 << 2) | (1 << 5) | (1 << 1);\r | |
227 | // inventory command code\r | |
228 | cmd[1] = 0x01;\r | |
229 | // no mask\r | |
230 | cmd[2] = 0x00;\r | |
231 | //Now the CRC\r | |
232 | crc = Crc(cmd, 3);\r | |
233 | cmd[3] = crc & 0xff;\r | |
234 | cmd[4] = crc >> 8;\r | |
235 | \r | |
236 | CodeIso15693AsReader(cmd, sizeof(cmd));\r | |
237 | }\r | |
238 | \r | |
239 | static void __attribute__((unused)) BuildSysInfoRequest(BYTE *uid)\r | |
240 | {\r | |
241 | BYTE cmd[12];\r | |
242 | \r | |
243 | WORD crc;\r | |
244 | // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block\r | |
245 | // followed by teh block data\r | |
246 | // one sub-carrier, inventory, 1 slot, fast rate\r | |
247 | cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit\r | |
248 | // System Information command code\r | |
249 | cmd[1] = 0x2B;\r | |
250 | // UID may be optionally specified here\r | |
251 | // 64-bit UID\r | |
252 | cmd[2] = 0x32;\r | |
253 | cmd[3]= 0x4b;\r | |
254 | cmd[4] = 0x03;\r | |
255 | cmd[5] = 0x01;\r | |
256 | cmd[6] = 0x00;\r | |
257 | cmd[7] = 0x10;\r | |
258 | cmd[8] = 0x05;\r | |
259 | cmd[9]= 0xe0; // always e0 (not exactly unique)\r | |
260 | //Now the CRC\r | |
261 | crc = Crc(cmd, 10); // the crc needs to be calculated over 2 bytes\r | |
262 | cmd[10] = crc & 0xff;\r | |
263 | cmd[11] = crc >> 8;\r | |
264 | \r | |
265 | CodeIso15693AsReader(cmd, sizeof(cmd));\r | |
266 | }\r | |
267 | \r | |
268 | static void BuildSelectRequest( BYTE uid[])\r | |
269 | {\r | |
270 | \r | |
271 | // uid[6]=0x31; // this is getting ignored - the uid array is not happening...\r | |
272 | BYTE cmd[12];\r | |
273 | \r | |
274 | WORD crc;\r | |
275 | // one sub-carrier, inventory, 1 slot, fast rate\r | |
276 | //cmd[0] = (1 << 2) | (1 << 5) | (1 << 1); // INVENTROY FLAGS\r | |
277 | cmd[0] = (1 << 4) | (1 << 5) | (1 << 1); // Select and addressed FLAGS\r | |
278 | // SELECT command code\r | |
279 | cmd[1] = 0x25;\r | |
280 | // 64-bit UID\r | |
281 | // cmd[2] = uid[0];//0x32;\r | |
282 | // cmd[3]= uid[1];//0x4b;\r | |
283 | // cmd[4] = uid[2];//0x03;\r | |
284 | // cmd[5] = uid[3];//0x01;\r | |
285 | // cmd[6] = uid[4];//0x00;\r | |
286 | // cmd[7] = uid[5];//0x10;\r | |
287 | // cmd[8] = uid[6];//0x05;\r | |
288 | cmd[2] = 0x32;//\r | |
289 | cmd[3] = 0x4b;\r | |
290 | cmd[4] = 0x03;\r | |
291 | cmd[5] = 0x01;\r | |
292 | cmd[6] = 0x00;\r | |
293 | cmd[7] = 0x10;\r | |
294 | cmd[8] = 0x05; // infineon?\r | |
295 | \r | |
296 | cmd[9]= 0xe0; // always e0 (not exactly unique)\r | |
297 | \r | |
298 | // DbpIntegers(cmd[8],cmd[7],cmd[6]);\r | |
299 | // Now the CRC\r | |
300 | crc = Crc(cmd, 10); // the crc needs to be calculated over 10 bytes\r | |
301 | cmd[10] = crc & 0xff;\r | |
302 | cmd[11] = crc >> 8;\r | |
303 | \r | |
304 | CodeIso15693AsReader(cmd, sizeof(cmd));\r | |
305 | }\r | |
306 | \r | |
307 | static void __attribute__((unused)) BuildReadBlockRequest(BYTE *uid, BYTE blockNumber )\r | |
308 | {\r | |
309 | BYTE cmd[13];\r | |
310 | \r | |
311 | WORD crc;\r | |
312 | // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block\r | |
313 | // followed by teh block data\r | |
314 | // one sub-carrier, inventory, 1 slot, fast rate\r | |
315 | cmd[0] = (1 << 6)| (1 << 5) | (1 << 1); // no SELECT bit\r | |
316 | // READ BLOCK command code\r | |
317 | cmd[1] = 0x20;\r | |
318 | // UID may be optionally specified here\r | |
319 | // 64-bit UID\r | |
320 | cmd[2] = 0x32;\r | |
321 | cmd[3]= 0x4b;\r | |
322 | cmd[4] = 0x03;\r | |
323 | cmd[5] = 0x01;\r | |
324 | cmd[6] = 0x00;\r | |
325 | cmd[7] = 0x10;\r | |
326 | cmd[8] = 0x05;\r | |
327 | cmd[9]= 0xe0; // always e0 (not exactly unique)\r | |
328 | // Block number to read\r | |
329 | cmd[10] = blockNumber;//0x00;\r | |
330 | //Now the CRC\r | |
331 | crc = Crc(cmd, 11); // the crc needs to be calculated over 2 bytes\r | |
332 | cmd[11] = crc & 0xff;\r | |
333 | cmd[12] = crc >> 8;\r | |
334 | \r | |
335 | CodeIso15693AsReader(cmd, sizeof(cmd));\r | |
336 | }\r | |
337 | \r | |
338 | static void __attribute__((unused)) BuildReadMultiBlockRequest(BYTE *uid)\r | |
339 | {\r | |
340 | BYTE cmd[14];\r | |
341 | \r | |
342 | WORD crc;\r | |
343 | // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block\r | |
344 | // followed by teh block data\r | |
345 | // one sub-carrier, inventory, 1 slot, fast rate\r | |
346 | cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit\r | |
347 | // READ Multi BLOCK command code\r | |
348 | cmd[1] = 0x23;\r | |
349 | // UID may be optionally specified here\r | |
350 | // 64-bit UID\r | |
351 | cmd[2] = 0x32;\r | |
352 | cmd[3]= 0x4b;\r | |
353 | cmd[4] = 0x03;\r | |
354 | cmd[5] = 0x01;\r | |
355 | cmd[6] = 0x00;\r | |
356 | cmd[7] = 0x10;\r | |
357 | cmd[8] = 0x05;\r | |
358 | cmd[9]= 0xe0; // always e0 (not exactly unique)\r | |
359 | // First Block number to read\r | |
360 | cmd[10] = 0x00;\r | |
361 | // Number of Blocks to read\r | |
362 | cmd[11] = 0x2f; // read quite a few\r | |
363 | //Now the CRC\r | |
364 | crc = Crc(cmd, 12); // the crc needs to be calculated over 2 bytes\r | |
365 | cmd[12] = crc & 0xff;\r | |
366 | cmd[13] = crc >> 8;\r | |
367 | \r | |
368 | CodeIso15693AsReader(cmd, sizeof(cmd));\r | |
369 | }\r | |
370 | \r | |
371 | static void __attribute__((unused)) BuildArbitraryRequest(BYTE *uid,BYTE CmdCode)\r | |
372 | {\r | |
373 | BYTE cmd[14];\r | |
374 | \r | |
375 | WORD crc;\r | |
376 | // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block\r | |
377 | // followed by teh block data\r | |
378 | // one sub-carrier, inventory, 1 slot, fast rate\r | |
379 | cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit\r | |
380 | // READ BLOCK command code\r | |
381 | cmd[1] = CmdCode;\r | |
382 | // UID may be optionally specified here\r | |
383 | // 64-bit UID\r | |
384 | cmd[2] = 0x32;\r | |
385 | cmd[3]= 0x4b;\r | |
386 | cmd[4] = 0x03;\r | |
387 | cmd[5] = 0x01;\r | |
388 | cmd[6] = 0x00;\r | |
389 | cmd[7] = 0x10;\r | |
390 | cmd[8] = 0x05;\r | |
391 | cmd[9]= 0xe0; // always e0 (not exactly unique)\r | |
392 | // Parameter\r | |
393 | cmd[10] = 0x00;\r | |
394 | cmd[11] = 0x0a;\r | |
395 | \r | |
396 | // cmd[12] = 0x00;\r | |
397 | // cmd[13] = 0x00; //Now the CRC\r | |
398 | crc = Crc(cmd, 12); // the crc needs to be calculated over 2 bytes\r | |
399 | cmd[12] = crc & 0xff;\r | |
400 | cmd[13] = crc >> 8;\r | |
401 | \r | |
402 | CodeIso15693AsReader(cmd, sizeof(cmd));\r | |
403 | }\r | |
404 | \r | |
405 | static void __attribute__((unused)) BuildArbitraryCustomRequest(BYTE uid[], BYTE CmdCode)\r | |
406 | {\r | |
407 | BYTE cmd[14];\r | |
408 | \r | |
409 | WORD crc;\r | |
410 | // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block\r | |
411 | // followed by teh block data\r | |
412 | // one sub-carrier, inventory, 1 slot, fast rate\r | |
413 | cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit\r | |
414 | // READ BLOCK command code\r | |
415 | cmd[1] = CmdCode;\r | |
416 | // UID may be optionally specified here\r | |
417 | // 64-bit UID\r | |
418 | cmd[2] = 0x32;\r | |
419 | cmd[3]= 0x4b;\r | |
420 | cmd[4] = 0x03;\r | |
421 | cmd[5] = 0x01;\r | |
422 | cmd[6] = 0x00;\r | |
423 | cmd[7] = 0x10;\r | |
424 | cmd[8] = 0x05;\r | |
425 | cmd[9]= 0xe0; // always e0 (not exactly unique)\r | |
426 | // Parameter\r | |
427 | cmd[10] = 0x05; // for custom codes this must be manufcturer code\r | |
428 | cmd[11] = 0x00;\r | |
429 | \r | |
430 | // cmd[12] = 0x00;\r | |
431 | // cmd[13] = 0x00; //Now the CRC\r | |
432 | crc = Crc(cmd, 12); // the crc needs to be calculated over 2 bytes\r | |
433 | cmd[12] = crc & 0xff;\r | |
434 | cmd[13] = crc >> 8;\r | |
435 | \r | |
436 | CodeIso15693AsReader(cmd, sizeof(cmd));\r | |
437 | }\r | |
438 | \r | |
439 | /////////////////////////////////////////////////////////////////////////\r | |
440 | // Now the VICC>VCD responses when we are simulating a tag\r | |
441 | ////////////////////////////////////////////////////////////////////\r | |
442 | \r | |
443 | static void BuildInventoryResponse(void)\r | |
444 | {\r | |
445 | BYTE cmd[12];\r | |
446 | \r | |
447 | WORD crc;\r | |
448 | // one sub-carrier, inventory, 1 slot, fast rate\r | |
449 | // AFI is at bit 5 (1<<4) when doing an INVENTORY\r | |
450 | cmd[0] = 0; //(1 << 2) | (1 << 5) | (1 << 1);\r | |
451 | cmd[1] = 0;\r | |
452 | // 64-bit UID\r | |
453 | cmd[2] = 0x32;\r | |
454 | cmd[3]= 0x4b;\r | |
455 | cmd[4] = 0x03;\r | |
456 | cmd[5] = 0x01;\r | |
457 | cmd[6] = 0x00;\r | |
458 | cmd[7] = 0x10;\r | |
459 | cmd[8] = 0x05;\r | |
460 | cmd[9]= 0xe0;\r | |
461 | //Now the CRC\r | |
462 | crc = Crc(cmd, 10);\r | |
463 | cmd[10] = crc & 0xff;\r | |
464 | cmd[11] = crc >> 8;\r | |
465 | \r | |
466 | CodeIso15693AsReader(cmd, sizeof(cmd));\r | |
467 | }\r | |
468 | \r | |
469 | //-----------------------------------------------------------------------------\r | |
470 | // Transmit the command (to the tag) that was placed in ToSend[].\r | |
471 | //-----------------------------------------------------------------------------\r | |
472 | static void TransmitTo15693Tag(const BYTE *cmd, int len, int *samples, int *wait)\r | |
473 | {\r | |
474 | int c;\r | |
475 | \r | |
476 | // FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);\r | |
477 | FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_TX);\r | |
478 | if(*wait < 10) { *wait = 10; }\r | |
479 | \r | |
480 | // for(c = 0; c < *wait;) {\r | |
481 | // if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {\r | |
482 | // AT91C_BASE_SSC->SSC_THR = 0x00; // For exact timing!\r | |
483 | // c++;\r | |
484 | // }\r | |
485 | // if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {\r | |
486 | // volatile DWORD r = AT91C_BASE_SSC->SSC_RHR;\r | |
487 | // (void)r;\r | |
488 | // }\r | |
489 | // WDT_HIT();\r | |
490 | // }\r | |
491 | \r | |
492 | c = 0;\r | |
493 | for(;;) {\r | |
494 | if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {\r | |
495 | AT91C_BASE_SSC->SSC_THR = cmd[c];\r | |
496 | c++;\r | |
497 | if(c >= len) {\r | |
498 | break;\r | |
499 | }\r | |
500 | }\r | |
501 | if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {\r | |
502 | volatile DWORD r = AT91C_BASE_SSC->SSC_RHR;\r | |
503 | (void)r;\r | |
504 | }\r | |
505 | WDT_HIT();\r | |
506 | }\r | |
507 | *samples = (c + *wait) << 3;\r | |
508 | }\r | |
509 | \r | |
510 | //-----------------------------------------------------------------------------\r | |
511 | // Transmit the command (to the reader) that was placed in ToSend[].\r | |
512 | //-----------------------------------------------------------------------------\r | |
513 | static void TransmitTo15693Reader(const BYTE *cmd, int len, int *samples, int *wait)\r | |
514 | {\r | |
515 | int c;\r | |
516 | \r | |
517 | // FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_TX);\r | |
518 | FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR); // No requirement to energise my coils\r | |
519 | if(*wait < 10) { *wait = 10; }\r | |
520 | \r | |
521 | c = 0;\r | |
522 | for(;;) {\r | |
523 | if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {\r | |
524 | AT91C_BASE_SSC->SSC_THR = cmd[c];\r | |
525 | c++;\r | |
526 | if(c >= len) {\r | |
527 | break;\r | |
528 | }\r | |
529 | }\r | |
530 | if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {\r | |
531 | volatile DWORD r = AT91C_BASE_SSC->SSC_RHR;\r | |
532 | (void)r;\r | |
533 | }\r | |
534 | WDT_HIT();\r | |
535 | }\r | |
536 | *samples = (c + *wait) << 3;\r | |
537 | }\r | |
538 | \r | |
539 | static int GetIso15693AnswerFromTag(BYTE *receivedResponse, int maxLen, int *samples, int *elapsed)\r | |
540 | {\r | |
541 | int c = 0;\r | |
542 | BYTE *dest = (BYTE *)BigBuf;\r | |
543 | int getNext = 0;\r | |
544 | \r | |
545 | SBYTE prev = 0;\r | |
546 | \r | |
547 | // NOW READ RESPONSE\r | |
548 | FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);\r | |
549 | //spindelay(60); // greg - experiment to get rid of some of the 0 byte/failed reads\r | |
550 | c = 0;\r | |
551 | getNext = FALSE;\r | |
552 | for(;;) {\r | |
553 | if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {\r | |
554 | AT91C_BASE_SSC->SSC_THR = 0x43;\r | |
555 | }\r | |
556 | if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {\r | |
557 | SBYTE b;\r | |
558 | b = (SBYTE)AT91C_BASE_SSC->SSC_RHR;\r | |
559 | \r | |
560 | // The samples are correlations against I and Q versions of the\r | |
561 | // tone that the tag AM-modulates, so every other sample is I,\r | |
562 | // every other is Q. We just want power, so abs(I) + abs(Q) is\r | |
563 | // close to what we want.\r | |
564 | if(getNext) {\r | |
565 | SBYTE r;\r | |
566 | \r | |
567 | if(b < 0) {\r | |
568 | r = -b;\r | |
569 | } else {\r | |
570 | r = b;\r | |
571 | }\r | |
572 | if(prev < 0) {\r | |
573 | r -= prev;\r | |
574 | } else {\r | |
575 | r += prev;\r | |
576 | }\r | |
577 | \r | |
578 | dest[c++] = (BYTE)r;\r | |
579 | \r | |
580 | if(c >= 2000) {\r | |
581 | break;\r | |
582 | }\r | |
583 | } else {\r | |
584 | prev = b;\r | |
585 | }\r | |
586 | \r | |
587 | getNext = !getNext;\r | |
588 | }\r | |
589 | }\r | |
590 | \r | |
591 | //////////////////////////////////////////\r | |
592 | /////////// DEMODULATE ///////////////////\r | |
593 | //////////////////////////////////////////\r | |
594 | \r | |
595 | int i, j;\r | |
596 | int max = 0, maxPos=0;\r | |
597 | \r | |
598 | int skip = 4;\r | |
599 | \r | |
600 | // if(GraphTraceLen < 1000) return; // THIS CHECKS FOR A BUFFER TO SMALL\r | |
601 | \r | |
602 | // First, correlate for SOF\r | |
603 | for(i = 0; i < 100; i++) {\r | |
604 | int corr = 0;\r | |
605 | for(j = 0; j < arraylen(FrameSOF); j += skip) {\r | |
606 | corr += FrameSOF[j]*dest[i+(j/skip)];\r | |
607 | }\r | |
608 | if(corr > max) {\r | |
609 | max = corr;\r | |
610 | maxPos = i;\r | |
611 | }\r | |
612 | }\r | |
613 | // DbpString("SOF at %d, correlation %d", maxPos,max/(arraylen(FrameSOF)/skip));\r | |
614 | \r | |
615 | int k = 0; // this will be our return value\r | |
616 | \r | |
617 | // greg - If correlation is less than 1 then there's little point in continuing\r | |
618 | if ((max/(arraylen(FrameSOF)/skip)) >= 1)\r | |
619 | {\r | |
620 | \r | |
621 | i = maxPos + arraylen(FrameSOF)/skip;\r | |
622 | \r | |
623 | BYTE outBuf[20];\r | |
624 | memset(outBuf, 0, sizeof(outBuf));\r | |
625 | BYTE mask = 0x01;\r | |
626 | for(;;) {\r | |
627 | int corr0 = 0, corr1 = 0, corrEOF = 0;\r | |
628 | for(j = 0; j < arraylen(Logic0); j += skip) {\r | |
629 | corr0 += Logic0[j]*dest[i+(j/skip)];\r | |
630 | }\r | |
631 | for(j = 0; j < arraylen(Logic1); j += skip) {\r | |
632 | corr1 += Logic1[j]*dest[i+(j/skip)];\r | |
633 | }\r | |
634 | for(j = 0; j < arraylen(FrameEOF); j += skip) {\r | |
635 | corrEOF += FrameEOF[j]*dest[i+(j/skip)];\r | |
636 | }\r | |
637 | // Even things out by the length of the target waveform.\r | |
638 | corr0 *= 4;\r | |
639 | corr1 *= 4;\r | |
640 | \r | |
641 | if(corrEOF > corr1 && corrEOF > corr0) {\r | |
642 | // DbpString("EOF at %d", i);\r | |
643 | break;\r | |
644 | } else if(corr1 > corr0) {\r | |
645 | i += arraylen(Logic1)/skip;\r | |
646 | outBuf[k] |= mask;\r | |
647 | } else {\r | |
648 | i += arraylen(Logic0)/skip;\r | |
649 | }\r | |
650 | mask <<= 1;\r | |
651 | if(mask == 0) {\r | |
652 | k++;\r | |
653 | mask = 0x01;\r | |
654 | }\r | |
655 | if((i+(int)arraylen(FrameEOF)) >= 2000) {\r | |
656 | DbpString("ran off end!");\r | |
657 | break;\r | |
658 | }\r | |
659 | }\r | |
660 | if(mask != 0x01) {\r | |
661 | DbpString("error, uneven octet! (discard extra bits!)");\r | |
662 | /// DbpString(" mask=%02x", mask);\r | |
663 | }\r | |
664 | // BYTE str1 [8];\r | |
665 | // itoa(k,str1);\r | |
666 | // strcat(str1," octets read");\r | |
667 | \r | |
668 | // DbpString( str1); // DbpString("%d octets", k);\r | |
669 | \r | |
670 | // for(i = 0; i < k; i+=3) {\r | |
671 | // //DbpString("# %2d: %02x ", i, outBuf[i]);\r | |
672 | // DbpIntegers(outBuf[i],outBuf[i+1],outBuf[i+2]);\r | |
673 | // }\r | |
674 | \r | |
675 | for(i = 0; i < k; i++) {\r | |
676 | receivedResponse[i] = outBuf[i];\r | |
677 | }\r | |
678 | } // "end if correlation > 0" (max/(arraylen(FrameSOF)/skip))\r | |
679 | return k; // return the number of bytes demodulated\r | |
680 | \r | |
681 | /// DbpString("CRC=%04x", Iso15693Crc(outBuf, k-2));\r | |
682 | \r | |
683 | }\r | |
684 | \r | |
685 | // Now the GetISO15693 message from sniffing command\r | |
686 | static int GetIso15693AnswerFromSniff(BYTE *receivedResponse, int maxLen, int *samples, int *elapsed)\r | |
687 | {\r | |
688 | int c = 0;\r | |
689 | BYTE *dest = (BYTE *)BigBuf;\r | |
690 | int getNext = 0;\r | |
691 | \r | |
692 | SBYTE prev = 0;\r | |
693 | \r | |
694 | // NOW READ RESPONSE\r | |
695 | FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);\r | |
696 | //spindelay(60); // greg - experiment to get rid of some of the 0 byte/failed reads\r | |
697 | c = 0;\r | |
698 | getNext = FALSE;\r | |
699 | for(;;) {\r | |
700 | if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {\r | |
701 | AT91C_BASE_SSC->SSC_THR = 0x43;\r | |
702 | }\r | |
703 | if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {\r | |
704 | SBYTE b;\r | |
705 | b = (SBYTE)AT91C_BASE_SSC->SSC_RHR;\r | |
706 | \r | |
707 | // The samples are correlations against I and Q versions of the\r | |
708 | // tone that the tag AM-modulates, so every other sample is I,\r | |
709 | // every other is Q. We just want power, so abs(I) + abs(Q) is\r | |
710 | // close to what we want.\r | |
711 | if(getNext) {\r | |
712 | SBYTE r;\r | |
713 | \r | |
714 | if(b < 0) {\r | |
715 | r = -b;\r | |
716 | } else {\r | |
717 | r = b;\r | |
718 | }\r | |
719 | if(prev < 0) {\r | |
720 | r -= prev;\r | |
721 | } else {\r | |
722 | r += prev;\r | |
723 | }\r | |
724 | \r | |
725 | dest[c++] = (BYTE)r;\r | |
726 | \r | |
727 | if(c >= 20000) {\r | |
728 | break;\r | |
729 | }\r | |
730 | } else {\r | |
731 | prev = b;\r | |
732 | }\r | |
733 | \r | |
734 | getNext = !getNext;\r | |
735 | }\r | |
736 | }\r | |
737 | \r | |
738 | //////////////////////////////////////////\r | |
739 | /////////// DEMODULATE ///////////////////\r | |
740 | //////////////////////////////////////////\r | |
741 | \r | |
742 | int i, j;\r | |
743 | int max = 0, maxPos=0;\r | |
744 | \r | |
745 | int skip = 4;\r | |
746 | \r | |
747 | // if(GraphTraceLen < 1000) return; // THIS CHECKS FOR A BUFFER TO SMALL\r | |
748 | \r | |
749 | // First, correlate for SOF\r | |
750 | for(i = 0; i < 19000; i++) {\r | |
751 | int corr = 0;\r | |
752 | for(j = 0; j < arraylen(FrameSOF); j += skip) {\r | |
753 | corr += FrameSOF[j]*dest[i+(j/skip)];\r | |
754 | }\r | |
755 | if(corr > max) {\r | |
756 | max = corr;\r | |
757 | maxPos = i;\r | |
758 | }\r | |
759 | }\r | |
760 | // DbpString("SOF at %d, correlation %d", maxPos,max/(arraylen(FrameSOF)/skip));\r | |
761 | \r | |
762 | int k = 0; // this will be our return value\r | |
763 | \r | |
764 | // greg - If correlation is less than 1 then there's little point in continuing\r | |
765 | if ((max/(arraylen(FrameSOF)/skip)) >= 1) // THIS SHOULD BE 1\r | |
766 | {\r | |
767 | \r | |
768 | i = maxPos + arraylen(FrameSOF)/skip;\r | |
769 | \r | |
770 | BYTE outBuf[20];\r | |
771 | memset(outBuf, 0, sizeof(outBuf));\r | |
772 | BYTE mask = 0x01;\r | |
773 | for(;;) {\r | |
774 | int corr0 = 0, corr1 = 0, corrEOF = 0;\r | |
775 | for(j = 0; j < arraylen(Logic0); j += skip) {\r | |
776 | corr0 += Logic0[j]*dest[i+(j/skip)];\r | |
777 | }\r | |
778 | for(j = 0; j < arraylen(Logic1); j += skip) {\r | |
779 | corr1 += Logic1[j]*dest[i+(j/skip)];\r | |
780 | }\r | |
781 | for(j = 0; j < arraylen(FrameEOF); j += skip) {\r | |
782 | corrEOF += FrameEOF[j]*dest[i+(j/skip)];\r | |
783 | }\r | |
784 | // Even things out by the length of the target waveform.\r | |
785 | corr0 *= 4;\r | |
786 | corr1 *= 4;\r | |
787 | \r | |
788 | if(corrEOF > corr1 && corrEOF > corr0) {\r | |
789 | // DbpString("EOF at %d", i);\r | |
790 | break;\r | |
791 | } else if(corr1 > corr0) {\r | |
792 | i += arraylen(Logic1)/skip;\r | |
793 | outBuf[k] |= mask;\r | |
794 | } else {\r | |
795 | i += arraylen(Logic0)/skip;\r | |
796 | }\r | |
797 | mask <<= 1;\r | |
798 | if(mask == 0) {\r | |
799 | k++;\r | |
800 | mask = 0x01;\r | |
801 | }\r | |
802 | if((i+(int)arraylen(FrameEOF)) >= 2000) {\r | |
803 | DbpString("ran off end!");\r | |
804 | break;\r | |
805 | }\r | |
806 | }\r | |
807 | if(mask != 0x01) {\r | |
808 | DbpString("error, uneven octet! (discard extra bits!)");\r | |
809 | /// DbpString(" mask=%02x", mask);\r | |
810 | }\r | |
811 | // BYTE str1 [8];\r | |
812 | // itoa(k,str1);\r | |
813 | // strcat(str1," octets read");\r | |
814 | \r | |
815 | // DbpString( str1); // DbpString("%d octets", k);\r | |
816 | \r | |
817 | // for(i = 0; i < k; i+=3) {\r | |
818 | // //DbpString("# %2d: %02x ", i, outBuf[i]);\r | |
819 | // DbpIntegers(outBuf[i],outBuf[i+1],outBuf[i+2]);\r | |
820 | // }\r | |
821 | \r | |
822 | for(i = 0; i < k; i++) {\r | |
823 | receivedResponse[i] = outBuf[i];\r | |
824 | }\r | |
825 | } // "end if correlation > 0" (max/(arraylen(FrameSOF)/skip))\r | |
826 | return k; // return the number of bytes demodulated\r | |
827 | \r | |
828 | /// DbpString("CRC=%04x", Iso15693Crc(outBuf, k-2));\r | |
829 | }\r | |
830 | \r | |
831 | //-----------------------------------------------------------------------------\r | |
832 | // Start to read an ISO 15693 tag. We send an identify request, then wait\r | |
833 | // for the response. The response is not demodulated, just left in the buffer\r | |
834 | // so that it can be downloaded to a PC and processed there.\r | |
835 | //-----------------------------------------------------------------------------\r | |
836 | void AcquireRawAdcSamplesIso15693(void)\r | |
837 | {\r | |
838 | int c = 0;\r | |
839 | BYTE *dest = (BYTE *)BigBuf;\r | |
840 | int getNext = 0;\r | |
841 | \r | |
842 | SBYTE prev = 0;\r | |
843 | \r | |
844 | BuildIdentifyRequest();\r | |
845 | \r | |
846 | SetAdcMuxFor(GPIO_MUXSEL_HIPKD);\r | |
847 | \r | |
848 | // Give the tags time to energize\r | |
849 | FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);\r | |
850 | SpinDelay(100);\r | |
851 | \r | |
852 | // Now send the command\r | |
853 | FpgaSetupSsc();\r | |
854 | FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_TX);\r | |
855 | \r | |
856 | c = 0;\r | |
857 | for(;;) {\r | |
858 | if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {\r | |
859 | AT91C_BASE_SSC->SSC_THR = ToSend[c];\r | |
860 | c++;\r | |
861 | if(c == ToSendMax+3) {\r | |
862 | break;\r | |
863 | }\r | |
864 | }\r | |
865 | if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {\r | |
866 | volatile DWORD r = AT91C_BASE_SSC->SSC_RHR;\r | |
867 | (void)r;\r | |
868 | }\r | |
869 | WDT_HIT();\r | |
870 | }\r | |
871 | \r | |
872 | FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);\r | |
873 | \r | |
874 | c = 0;\r | |
875 | getNext = FALSE;\r | |
876 | for(;;) {\r | |
877 | if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {\r | |
878 | AT91C_BASE_SSC->SSC_THR = 0x43;\r | |
879 | }\r | |
880 | if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {\r | |
881 | SBYTE b;\r | |
882 | b = (SBYTE)AT91C_BASE_SSC->SSC_RHR;\r | |
883 | \r | |
884 | // The samples are correlations against I and Q versions of the\r | |
885 | // tone that the tag AM-modulates, so every other sample is I,\r | |
886 | // every other is Q. We just want power, so abs(I) + abs(Q) is\r | |
887 | // close to what we want.\r | |
888 | if(getNext) {\r | |
889 | SBYTE r;\r | |
890 | \r | |
891 | if(b < 0) {\r | |
892 | r = -b;\r | |
893 | } else {\r | |
894 | r = b;\r | |
895 | }\r | |
896 | if(prev < 0) {\r | |
897 | r -= prev;\r | |
898 | } else {\r | |
899 | r += prev;\r | |
900 | }\r | |
901 | \r | |
902 | dest[c++] = (BYTE)r;\r | |
903 | \r | |
904 | if(c >= 2000) {\r | |
905 | break;\r | |
906 | }\r | |
907 | } else {\r | |
908 | prev = b;\r | |
909 | }\r | |
910 | \r | |
911 | getNext = !getNext;\r | |
912 | }\r | |
913 | }\r | |
914 | }\r | |
915 | \r | |
916 | //-----------------------------------------------------------------------------\r | |
917 | // Simulate an ISO15693 reader, perform anti-collision and then attempt to read a sector\r | |
918 | // all demodulation performed in arm rather than host. - greg\r | |
919 | //-----------------------------------------------------------------------------\r | |
920 | void ReaderIso15693(DWORD parameter)\r | |
921 | {\r | |
922 | LED_A_ON();\r | |
923 | LED_B_ON();\r | |
924 | LED_C_OFF();\r | |
925 | LED_D_OFF();\r | |
926 | \r | |
927 | //DbpString(parameter);\r | |
928 | \r | |
929 | //BYTE *answer0 = (((BYTE *)BigBuf) + 3560); // allow 100 bytes per reponse (way too much)\r | |
930 | BYTE *answer1 = (((BYTE *)BigBuf) + 3660); //\r | |
931 | BYTE *answer2 = (((BYTE *)BigBuf) + 3760);\r | |
932 | BYTE *answer3 = (((BYTE *)BigBuf) + 3860);\r | |
933 | //BYTE *TagUID= (((BYTE *)BigBuf) + 3960); // where we hold the uid for hi15reader\r | |
934 | // int answerLen0 = 0;\r | |
935 | int answerLen1 = 0;\r | |
936 | int answerLen2 = 0;\r | |
937 | int answerLen3 = 0;\r | |
938 | \r | |
939 | // Blank arrays\r | |
940 | memset(BigBuf + 3660, 0, 300);\r | |
941 | \r | |
942 | // Setup SSC\r | |
943 | FpgaSetupSsc();\r | |
944 | \r | |
945 | // Start from off (no field generated)\r | |
946 | FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r | |
947 | SpinDelay(200);\r | |
948 | \r | |
949 | SetAdcMuxFor(GPIO_MUXSEL_HIPKD);\r | |
950 | FpgaSetupSsc();\r | |
951 | \r | |
952 | // Give the tags time to energize\r | |
953 | FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);\r | |
954 | SpinDelay(200);\r | |
955 | \r | |
956 | LED_A_ON();\r | |
957 | LED_B_OFF();\r | |
958 | LED_C_OFF();\r | |
959 | LED_D_OFF();\r | |
960 | \r | |
961 | int samples = 0;\r | |
962 | int tsamples = 0;\r | |
963 | int wait = 0;\r | |
964 | int elapsed = 0;\r | |
965 | \r | |
966 | // FIRST WE RUN AN INVENTORY TO GET THE TAG UID\r | |
967 | // THIS MEANS WE CAN PRE-BUILD REQUESTS TO SAVE CPU TIME\r | |
968 | BYTE TagUID[7]; // where we hold the uid for hi15reader\r | |
969 | \r | |
970 | // BuildIdentifyRequest();\r | |
971 | // //TransmitTo15693Tag(ToSend,ToSendMax+3,&tsamples, &wait);\r | |
972 | // TransmitTo15693Tag(ToSend,ToSendMax,&tsamples, &wait); // No longer ToSendMax+3\r | |
973 | // // Now wait for a response\r | |
974 | // responseLen0 = GetIso15693AnswerFromTag(receivedAnswer0, 100, &samples, &elapsed) ;\r | |
975 | // if (responseLen0 >=12) // we should do a better check than this\r | |
976 | // {\r | |
977 | // // really we should check it is a valid mesg\r | |
978 | // // but for now just grab what we think is the uid\r | |
979 | // TagUID[0] = receivedAnswer0[2];\r | |
980 | // TagUID[1] = receivedAnswer0[3];\r | |
981 | // TagUID[2] = receivedAnswer0[4];\r | |
982 | // TagUID[3] = receivedAnswer0[5];\r | |
983 | // TagUID[4] = receivedAnswer0[6];\r | |
984 | // TagUID[5] = receivedAnswer0[7];\r | |
985 | // TagUID[6] = receivedAnswer0[8]; // IC Manufacturer code\r | |
986 | // DbpIntegers(TagUID[6],TagUID[5],TagUID[4]);\r | |
987 | //}\r | |
988 | \r | |
989 | // Now send the IDENTIFY command\r | |
990 | BuildIdentifyRequest();\r | |
991 | //TransmitTo15693Tag(ToSend,ToSendMax+3,&tsamples, &wait);\r | |
992 | TransmitTo15693Tag(ToSend,ToSendMax,&tsamples, &wait); // No longer ToSendMax+3\r | |
993 | // Now wait for a response\r | |
994 | answerLen1 = GetIso15693AnswerFromTag(answer1, 100, &samples, &elapsed) ;\r | |
995 | \r | |
996 | if (answerLen1 >=12) // we should do a better check than this\r | |
997 | {\r | |
998 | \r | |
999 | TagUID[0] = answer1[2];\r | |
1000 | TagUID[1] = answer1[3];\r | |
1001 | TagUID[2] = answer1[4];\r | |
1002 | TagUID[3] = answer1[5];\r | |
1003 | TagUID[4] = answer1[6];\r | |
1004 | TagUID[5] = answer1[7];\r | |
1005 | TagUID[6] = answer1[8]; // IC Manufacturer code\r | |
1006 | \r | |
1007 | // Now send the SELECT command\r | |
1008 | BuildSelectRequest(TagUID);\r | |
1009 | TransmitTo15693Tag(ToSend,ToSendMax,&tsamples, &wait); // No longer ToSendMax+3\r | |
1010 | // Now wait for a response\r | |
1011 | answerLen2 = GetIso15693AnswerFromTag(answer2, 100, &samples, &elapsed);\r | |
1012 | \r | |
1013 | // Now send the MULTI READ command\r | |
1014 | // BuildArbitraryRequest(*TagUID,parameter);\r | |
1015 | BuildArbitraryCustomRequest(TagUID,parameter);\r | |
1016 | // BuildReadBlockRequest(*TagUID,parameter);\r | |
1017 | // BuildSysInfoRequest(*TagUID);\r | |
1018 | //TransmitTo15693Tag(ToSend,ToSendMax+3,&tsamples, &wait);\r | |
1019 | TransmitTo15693Tag(ToSend,ToSendMax,&tsamples, &wait); // No longer ToSendMax+3\r | |
1020 | // Now wait for a response\r | |
1021 | answerLen3 = GetIso15693AnswerFromTag(answer3, 100, &samples, &elapsed) ;\r | |
1022 | \r | |
1023 | }\r | |
1024 | \r | |
1025 | Dbprintf("%d octets read from IDENTIFY request: %x %x %x %x %x %x %x %x %x", answerLen1,\r | |
1026 | answer1[0], answer1[1], answer1[2],\r | |
1027 | answer1[3], answer1[4], answer1[5],\r | |
1028 | answer1[6], answer1[7], answer1[8]);\r | |
1029 | \r | |
1030 | Dbprintf("%d octets read from SELECT request: %x %x %x %x %x %x %x %x %x", answerLen2,\r | |
1031 | answer2[0], answer2[1], answer2[2],\r | |
1032 | answer2[3], answer2[4], answer2[5],\r | |
1033 | answer2[6], answer2[7], answer2[8]);\r | |
1034 | \r | |
1035 | Dbprintf("%d octets read from XXX request: %x %x %x %x %x %x %x %x %x", answerLen3,\r | |
1036 | answer3[0], answer3[1], answer3[2],\r | |
1037 | answer3[3], answer3[4], answer3[5],\r | |
1038 | answer3[6], answer3[7], answer3[8]);\r | |
1039 | \r | |
1040 | \r | |
1041 | // str2[0]=0;\r | |
1042 | // for(i = 0; i < responseLen3; i++) {\r | |
1043 | // itoa(str1,receivedAnswer3[i]);\r | |
1044 | // strcat(str2,str1);\r | |
1045 | // }\r | |
1046 | // DbpString(str2);\r | |
1047 | \r | |
1048 | LED_A_OFF();\r | |
1049 | LED_B_OFF();\r | |
1050 | LED_C_OFF();\r | |
1051 | LED_D_OFF();\r | |
1052 | }\r | |
1053 | \r | |
1054 | //-----------------------------------------------------------------------------\r | |
1055 | // Simulate an ISO15693 TAG, perform anti-collision and then print any reader commands\r | |
1056 | // all demodulation performed in arm rather than host. - greg\r | |
1057 | //-----------------------------------------------------------------------------\r | |
1058 | void SimTagIso15693(DWORD parameter)\r | |
1059 | {\r | |
1060 | LED_A_ON();\r | |
1061 | LED_B_ON();\r | |
1062 | LED_C_OFF();\r | |
1063 | LED_D_OFF();\r | |
1064 | \r | |
1065 | BYTE *answer1 = (((BYTE *)BigBuf) + 3660); //\r | |
1066 | int answerLen1 = 0;\r | |
1067 | \r | |
1068 | // Blank arrays\r | |
1069 | memset(answer1, 0, 100);\r | |
1070 | \r | |
1071 | // Setup SSC\r | |
1072 | FpgaSetupSsc();\r | |
1073 | \r | |
1074 | // Start from off (no field generated)\r | |
1075 | FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r | |
1076 | SpinDelay(200);\r | |
1077 | \r | |
1078 | SetAdcMuxFor(GPIO_MUXSEL_HIPKD);\r | |
1079 | FpgaSetupSsc();\r | |
1080 | \r | |
1081 | // Give the tags time to energize\r | |
1082 | // FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); // NO GOOD FOR SIM TAG!!!!\r | |
1083 | SpinDelay(200);\r | |
1084 | \r | |
1085 | LED_A_OFF();\r | |
1086 | LED_B_OFF();\r | |
1087 | LED_C_ON();\r | |
1088 | LED_D_OFF();\r | |
1089 | \r | |
1090 | int samples = 0;\r | |
1091 | int tsamples = 0;\r | |
1092 | int wait = 0;\r | |
1093 | int elapsed = 0;\r | |
1094 | \r | |
1095 | answerLen1 = GetIso15693AnswerFromSniff(answer1, 100, &samples, &elapsed) ;\r | |
1096 | \r | |
1097 | if (answerLen1 >=1) // we should do a better check than this\r | |
1098 | {\r | |
1099 | // Build a suitable reponse to the reader INVENTORY cocmmand\r | |
1100 | BuildInventoryResponse();\r | |
1101 | TransmitTo15693Reader(ToSend,ToSendMax, &tsamples, &wait);\r | |
1102 | }\r | |
1103 | \r | |
1104 | Dbprintf("%d octets read from reader command: %x %x %x %x %x %x %x %x %x", answerLen1,\r | |
1105 | answer1[0], answer1[1], answer1[2],\r | |
1106 | answer1[3], answer1[4], answer1[5],\r | |
1107 | answer1[6], answer1[7], answer1[8]);\r | |
1108 | \r | |
1109 | LED_A_OFF();\r | |
1110 | LED_B_OFF();\r | |
1111 | LED_C_OFF();\r | |
1112 | LED_D_OFF();\r | |
1113 | }\r |