📄 iccpdir.lst
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C51 COMPILER V8.00 ICCPDIR 04/23/2009 15:56:19 PAGE 1
C51 COMPILER V8.00, COMPILATION OF MODULE ICCPDIR
OBJECT MODULE PLACED IN source\iccpdir.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE source\iccpdir.c LARGE BROWSE ORDER NOAREGS DEBUG OBJECTEXTEND PRINT(.\iccp
-dir.lst) SRC(.\out_sst89e564\iccpdir.SRC)
line level source
1 /****************************
2 * iccpdir.c *
3 * Designe by 刘俐训 *
4 * T = 0 for ic card *
5 * Sync card *
6 * last update: 04-13-2007 *
7 ****************************/
8 #include <reg52.h>
9 #include "stimer.h"
10 #include "string.h"
11 #include "uart.h"
12 #include "icc.h"
13 #include <v51rx2.h>
14 #include "intrsc.h"
15 //#include <wdt.h>
16
17 #define DEBUG_ICC 0
18
19 #define ICCIO P3_3
20 #define ICCRST P3_4
21 #define USERRST P2_0
22
23 #define ICCUSERCLKC P1_1
24 #define ICCUSERCLS P2_5
25 #define ICCUSEROVLD P2_6
26 #define ICCUSEREJECT P1_4
27 #define ICCUSERSCLK P1_2 // sync clk of user card
28 #define ICCUSERVCCC P2_1
29
30 #define ICCA0 P1_6
31 #define ICCA1 P1_5
32 #define ICCINH P1_7
33
34
35 #define INFOLEN 176
36
37 #ifndef enable
#define disable() EA = 0
#define enable() EA = 1
#endif
41
42 #define IccEnable(); IE1 = 0; EX1 = 1;
43 #define IccDisable(); EX1 = 0;
44
45 #define StartSend(); TxNotRx = 1;\
46 ICCIO = 0;
47
48 typedef struct _ICCATTR
49 {
50 unsigned char etu : 2; // baudrate, 00:9600, 01:38400, 10: onchip9600, 11: Onchip38400
51 unsigned char autob : 1; // auto baudrate or not
52 unsigned char dir : 1; // pdir or ndir
53 }ICCATTR;
54
C51 COMPILER V8.00 ICCPDIR 04/23/2009 15:56:19 PAGE 2
55 static code unsigned char IccEtu[4] = {248, 62, 192, 48};
56 static ICCATTR attr[4] = {{0,1,1}, {0,1,1}, {0,1,1}, {0,1,1}};
57 static unsigned int data TIME_OUT_MS = 50; /* 默认超时时间是50毫秒 */
58
59 // these parameters are calculated from ETU
60 static unsigned int data ETU = 62; //248; // 372 * 4 / 12 = 124 (cycles)
61 static unsigned char data RLD = 256 - 62; // bit period
62 static unsigned char data TxRLDStart = 256 - 62 + 30; // the 1st bit period
63 static unsigned char data RxRLDStart = 256 - 62 - 31 + 60; // the 1st bit period
64 static unsigned char data RxBits = 8;
65
66 // data direction
67 static bit dir = 1; // pdir
68
69 // flag of reseting card
70 static bit fReset = 0;
71
72 // current card id
73 static unsigned char CardId;
74
75 /*********************************************************************/
76 void iccgetputonebit(void); // call in the user timer interrupt for every bit
77
78 /*********************************************************************/
79 #ifndef SSBUF_SIZE
80 #define SSBUF_SIZE 64
81 #endif
82
83 static unsigned char idata IBUF[SSBUF_SIZE];
84 static unsigned char data ibufputidx=0;
85 static unsigned char data ibufgetidx=0;
86 static bit TxNotRx = 0;
87
88 static bit GetInputData( unsigned char *addr);
89
90 // calculate ETU, RLD and so on.
91 static void IccInitETU(unsigned int etu);
92 /*********************************************************************/
93
94 // these parameters are prepared for the bit interrupt functions
95 static unsigned char data mycharp;
96 static unsigned char data parityerror;
97 static unsigned char data parityerrorcnt;
98 static unsigned char data bitcounter;
99 static unsigned char data endflag;
100 static volatile bit RxWorking = 0;
101 static volatile bit TxParity = 0;
102
103 void iccgetputonebit(void)
104 {
105 1 bit bioport;
106 1
107 1 if(TxNotRx)
108 1 {
109 2 if(endflag)
110 2 {
111 3 if(endflag == 1)
112 3 {
113 4 ICCIO = 1; // stop parity bit
114 4 endflag ++;
115 4 }
116 3 else
C51 COMPILER V8.00 ICCPDIR 04/23/2009 15:56:19 PAGE 3
117 3 {
118 4 parityerror = ~ICCIO;
119 4 TxNotRx = 0;
120 4 DiUserTimer();
121 4 IccEnable();
122 4 }
123 3 }
124 2 else if(!bitcounter)
125 2 {
126 3 ICCIO = TxParity;
127 3 endflag = 1;
128 3 }
129 2 else
130 2 {
131 3 if(dir)
132 3 mycharp >>= 1;
133 3 else
134 3 mycharp <<= 1;
135 3
136 3 ICCIO = CY;
137 3 bitcounter --;
138 3 }
139 2 return;
140 2 }
141 1 else
142 1 {
143 2 bioport = dir ? ICCIO : ~ICCIO; // 首先取得端口数据，保证时间准确
144 2
145 2 if(parityerror)
146 2 {
147 3 if(parityerror == 1) // parity error bit start
148 3 {
149 4 ICCIO = 0; // show error
150 4 parityerror ++;
151 4 }
152 3 else // parity error bit end
153 3 {
154 4 ICCIO = 1;
155 4
156 4 parityerror = 0;
157 4 DiUserTimer(); // disable user timer interrupt
158 4 IccEnable();
159 4 RxWorking = 0;
160 4 }
161 3 return;
162 3 }
163 2
164 2 // if(!endflag)
165 2 if(bitcounter)
166 2 {
167 3 if(dir)
168 3 {
169 4 /*
170 4 mycharp >>= 1;
171 4 if(bioport)
172 4 mycharp |= 0x80;
173 4 */
174 4 ACC = mycharp;
175 4 CY = bioport;
176 4 #pragma asm
177 4 RRC A;
178 4 #pragma endasm
C51 COMPILER V8.00 ICCPDIR 04/23/2009 15:56:19 PAGE 4
179 4 mycharp = ACC;
180 4 }
181 3 else
182 3 {
183 4 /*
184 4 mycharp <<= 1;
185 4 if(bioport)
186 4 mycharp |= 0x01;
187 4 */
188 4 ACC = mycharp;
189 4 CY = bioport;
190 4 #pragma asm
191 4 RLC A;
192 4 #pragma endasm
193 4 mycharp = ACC;
194 4 }
195 3
196 3 bitcounter --; /////////////////////////
197 3
198 3 return;
199 3 }
200 2
201 2 ACC = mycharp;
202 2 if(P == bioport) /* 校验正确 */
203 2 {
204 3 FillBuf:
205 3 if(ibufputidx != ibufgetidx-1) // ;
206 3 { // |
207 4 if( (ibufputidx != SSBUF_SIZE-1) || (ibufgetidx != 0) ) // |
208 4 { // |
209 5 IBUF[ibufputidx++] = mycharp; // > fill buf
210 5 if(ibufputidx == SSBUF_SIZE) // |
211 5 ibufputidx = 0; // |
212 5 } // |
213 4 } // /
214 3
215 3 DiUserTimer(); // disable user timer interrupt
216 3 IccEnable();
217 3 RxWorking = 0;
218 3 // clear reseting flag
219 3 fReset = 0;
220 3 return;
221 3 }
222 2
223 2 // 校验不正确，首先看是否是复位应答的开始字节TS
224 2 if(fReset && (mycharp == 0x03))
225 2 {
226 3 dir = 0; // 反向协议
227 3 mycharp = 0x3f;
228 3 goto FillBuf;
229 3 }
230 2
231 2 // 设校验错误标志并计数
232 2 // P2_0 = 1;//////////////////////////////////////////////////////////////////////////////////////
-///////////////////
233 2 parityerror = 1;
234 2 parityerrorcnt ++;
235 2 // clear reseting flag
236 2 fReset = 0;
237 2 return;
238 2 }
239 1 }
C51 COMPILER V8.00 ICCPDIR 04/23/2009 15:56:19 PAGE 5
240
241 void TxRxdata(void) interrupt IE1_VECTOR using 3 //2
242 {
243 1 if(TxNotRx)
244 1 {
245 2 // do nothing
246 2 }
247 1 else
248 1 {
249 2 InitUserTimer(RLD, RxRLDStart);
250 2
251 2 // mycharp = 0x80;
252 2 bitcounter = RxBits;
253 2 RxWorking = 1;
254 2
255 2 IccDisable(); // EX1 = 0; // 禁止中断
256 2 parityerror = 0; // clear parity error flag
257 2 endflag = 0;
258 2 }
259 1 }
260
261 static bit GetInputData( unsigned char *addr )
262 {
263 1 if( ibufgetidx == ibufputidx )
264 1 {
265 2 return 0; //buf empty
266 2 }
267 1 else
268 1 {
269 2 *addr = IBUF[ibufgetidx++];
270 2
271 2 if(ibufgetidx == SSBUF_SIZE)
272 2 ibufgetidx = 0;
273 2 return 1;
274 2 }
275 1 }
276
277 static void IccInitETU(unsigned int etu)
278 {
279 1 ETU = etu;
280 1 RLD = 256 - ETU;
281 1 TxRLDStart = RLD + 30;
282 1 if(etu >= 170)
283 1 {
284 2 RxRLDStart = RLD + (ETU >> 1) + 60;
285 2 RxBits = 9;
286 2 }
287 1 else
288 1 {
289 2 RxRLDStart = RLD - (ETU >> 1) + 60;
290 2 RxBits = 8;
291 2 }
292 1 }
293
294 void IccSelect(unsigned char cardid)
295 {
296 1 // inhabit
297 1 ICCINH = 1;
298 1
299 1 // backup card id
300 1 CardId = cardid & 0x03;
301 1
C51 COMPILER V8.00 ICCPDIR 04/23/2009 15:56:19 PAGE 6
302 1 // switch to specified card
303 1 if(cardid & 0x01)
304 1 ICCA0 = 1;
305 1 else
306 1 ICCA0 = 0;
307 1 if(cardid & 0x02)
308 1 ICCA1 = 1;
309 1 else
310 1 ICCA1 = 0;
311 1
312 1 // habit
313 1 ICCINH = 0;
314 1
315 1 // init card etu and direciton
316 1 IccInitETU(IccEtu[attr[cardid].etu]);
317 1 dir = attr[cardid].dir;
318 1 }
319
320 int IccRead( char *buf, int len )
321 {
322 1 int data i;
323 1 unsigned int data starttime;
324 1
325 1 for(i=0; i<len; i++)
326 1 {
327 2 starttime = GetTickCount();
328 2 while(!GetInputData(buf+i))
329 2 {
330 3 if(GetTickCount() - starttime >= TIME_OUT_MS)
331 3 return i;
332 3 }
333 2 }
334 1 return i;
335 1 }
336
337 int IccWrite(char * buf, int len)
338 {
339 1 int data i;
340 1 unsigned int data starttime;
341 1 unsigned char data trytimes = 3;
342 1
343 1 for(i=0; i<len; i++)
344 1 {
345 2 starttime = GetTickCount();
346 2 SoftDelayCyl(ETU); // delay 2 etu
347 2 while(RxWorking)
348 2 {
349 3 while(RxWorking) // 重复两次是为了防止接收校验出错的重传
350 3 {
351 4 if(GetTickCount() - starttime >= TIME_OUT_MS)
352 4 {
353 5 #if DEBUG_ICC
ComWrite("\xff", 1);
delay(3);
#endif
357 5 return i;
358 5 }
359 4 }
360 3 SoftDelayCyl(ETU); // delay 4 etu
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