📄 userspc3 0810.lst
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213 UBYTE zyk_dps_state;
214 UBYTE prm_tst_buf[32]= {0,0,0,0,0,0,0,0,0,0,
215 0,0,0,0,0,0,0,0,0,0,
216 0,0,0,0,0,0,0,0,0,0,0,0};
217 enum ERRORCODES error_code;/*枚举类型*/
218
219 /* Locate the structure of the SPC3 in the address space 定位!! */
220
221 SPC3 xdata spc3 _at_ 0x1000; /*见.Hp3;定位*/
222 DPRAM xdata dpram _at_ 0x2800;
223
224 /************************************************************************/
225 /* D e s c r i p t i o n : */
226 /* */
227 /* USER-TASK */
228 /************************************************************************/
229
230
231 void main ()
232 {
233 1
234 1 #if defined __C51__
235 1 UBYTE xdata * xdata loesch;/* $ */
236 1 UWORD zaehl;
237 1
238 1 SPC3_RESET = SPC3_RESET_SET; /* force the Reset Pin 置1复位 */
239 1 //for(i = 100; i>0 ; i--); /* 延时 */
240 1
241 1 SPC3_RESET = !SPC3_RESET_SET; /* sbit SPC3_RESET = P3^4; */
C51 COMPILER V7.02b USERSPC3_0810 11/01/2004 20:51:05 PAGE 5
242 1
243 1 HW_WATCHDOG_TRIGGER = 1; /* Retrigger the HW Watchdog */
244 1 HW_WATCHDOG_TRIGGER = 0;
245 1
246 1 SPC3_INTERRUPT_ENABLE = !I_ENABLE; /* Set the interrupt parameters */
247 1 SPC3_INTERRUPT_PRIOR = P_HIGH; /* of the microprocessor */
248 1
249 1 loesch = &spc3.int_req.b[0]; /* Delete the SPC3 internal RAM */
250 1 /* 清空SPC3的RAM .Hp3*/
251 1 for (zaehl=0x16; zaehl<=0x05ff; zaehl++) /* 5FFH=1535 */
252 1 {
253 2 *(loesch + zaehl) = 00;
254 2 }
255 1
256 1 #elif _C166
T3OUT = 1; /* force the SPC3 reset pin (P3.3) */
for(i = 100; i ; i--);
T3OUT = 0;
CC11IC = 0x18; /* SPC3-Interrupt: ILVL = 6, GLVL = 0 */
#else
UBYTE * loesch;
UWORD zaehl;
outp(SPC3_RESET,0x21);
outp(SPC3_RESET,0x00);
loesch = &spc3.int_req.b[0]; /* Delete the SPC3 internal RAM */
for (zaehl=0x16; zaehl<=0x05ff; zaehl++)
{
*(loesch + zaehl) = 00;
}
#endif
273 1
274 1 /* activate indication functions激活指示函数;用于中断;PDF22&69 .Hp6;函数说明.Hp7;SPC3 0X04 */
275 1 SPC3_SET_IND(GO_LEAVE_DATA_EX | WD_DP_MODE_TIMEOUT | NEW_GC_COMMAND |\
276 1 NEW_SSA_DATA | NEW_CFG_DATA | NEW_PRM_DATA | BAUDRATE_DETECT);
277 1
278 1 /* set the watchdog value in the SPC3, which checks the microprocessor */
279 1 DPS2_SET_USER_WD_VALUE(20000);/* .P1 */
280 1
281 1 RL_flag=0x75;
282 1 LR_flag=0x21;
283 1 RL_flag=0x75;
284 1 LR_flag=0x21;
285 1 /* In this example the input and output bytes are transfered to the
286 1 IO area, which is addressed by the io_byte_ptr. In the case of the IM183
287 1 there is RAM. */
288 1
289 1 io_byte_ptr = ((UBYTE*) 0x2E000L); /* $ */
290 1
291 1 for (i=0; i<2; i++) /* $ */
292 1 {
293 2 (*(io_byte_ptr + i)) = 0;
294 2 }
295 1
296 1 /* fetch取 the station address, in this case the station address
297 1 is fixed in EPROM;$p此例中站地址存在EPROM */
298 1 this_station = OWN_ADDRESS;
299 1
300 1 /* get the Identnumber */
301 1 ident_numb_high = IDENT_HIGH; /*ident_numb_high 定义为全局变量 */
302 1 ident_numb_low = IDENT_LOW;
303 1
C51 COMPILER V7.02b USERSPC3_0810 11/01/2004 20:51:05 PAGE 6
304 1
305 1 /* Allow not the change of the slave address by the PROFIBUS DP */
306 1 /* Attention: The set_slave_address service is not blocked by this */
307 1 /* 从站地址改变许可性设置 */
308 1 real_no_add_chg = TRUE;
309 1
310 1 /* Reset the User und DPS;复位User和DPS */
311 1 user_dps_reset(); /* .U */
312 1
313 1
314 1 /* Enable the SPC3 interrupt in the interupt controller of the microprocessor */
315 1 #if defined __C51__ /* 中断使能 */
316 1 SPC3_INTERRUPT_ENABLE = I_ENABLE;
317 1 GLOBAL_INTERRUPT_ENABLE = I_ENABLE;
318 1 #elif _C166
CC11IE = 1;
#endif
321 1
322 1
323 1
324 1 for (;;)
325 1 { /*=== Begin of the endless loop ===*/
326 2 zyk_wd_state = SPC3_GET_WD_STATE(); /*for info.: the actuall WD State;zyk_wd_state全局变量*/
327 2 /*读Status Register中WD_STATE状态位 , .P1;PDF22 */
328 2 zyk_dps_state = DPS2_GET_DP_STATE(); /*for info.: the actuall PROFIBUS DP State*/
329 2 /*读Status Register中DP_STATE状态位 , .P1 */
330 2
331 2 DPS2_RESET_USER_WD(); /* Trigger the user watchdog of the SPC3;重触发SPC3的WD */
332 2 /* 即 spc3.x1.w.mode_reg1_s = RES_USER_WD */
333 2 #ifdef __C51__
334 2 HW_WATCHDOG_TRIGGER = 1; /* Retrigger the HW Watchdog of the IM183;重触发IM183硬件狗 */
335 2 HW_WATCHDOG_TRIGGER = 0; /* 已定义 sbit HW_WATCHDOG_TRIGGER = P1^0 */
336 2 #endif
337 2
338 2 /*======Handling of the output data;output data处理输出数据=========*/
339 2 /* .Hp8; DPS2_POLL_IND_DX_OUT()即spc3.int_req.b[_IMH] & DX_OUT_B;00H */
340 2 if (DPS2_POLL_IND_DX_OUT()) /* are new output date available? *见PDF77;SPC3接收到读写数据报文且新的输出数
-据已在N buffer里。在'Power_On'和'Leave_Master'状态清楚SPC3 的 N buffer同时也产生这个中断*/
341 2 { /* Confirm the receiving */
342 3 DPS2_CON_IND_DX_OUT(); /*DPS2_CON_IND_DX_OUT()即spc3.int_reg.ack.b[_IMH] = (UBYTE)DX_OUT_B;写*/
343 3
344 3 /* Get the pointer to the actual output data;获得实际输出数据的指针 */
345 3 user_output_buffer_ptr = DPS2_OUTPUT_UPDATE();/*即获得用于存输出数据的buf的实际指针;见PDF79 .Cp9 *
-/
346 3
347 3
348 3 /* Example: Copy the output data to the IO;例：把新数据拷到io_byte_ptr所指区 */
349 3 for (i=0; i<user_io_data_len_ptr->outp_data_len; i++)
350 3 {
351 4 (*((io_byte_ptr) + i)) = (*(((UBYTE SPC3_PTR_ATTR*) user_output_buffer_ptr) + i));
352 4 }
353 3 TEST_flag=RL_flag;/*$*/
354 3 TEST_flag=RL_flag;
355 3
356 3 if(TEST_flag==0x75)
357 3 {
358 4 o_byte_ptr=((UBYTE*)0x22C00L) ; /*$*/
359 4
360 4 for (i=0; i<user_io_data_len_ptr->outp_data_len; i++)
361 4 {
362 5 (*((o_byte_ptr) + i)) = (*(((UBYTE SPC3_PTR_ATTR*) user_output_buffer_ptr) + i));
363 5 }
C51 COMPILER V7.02b USERSPC3_0810 11/01/2004 20:51:05 PAGE 7
364 4
365 4 RL_flag=0x57;/*$*/
366 4 RL_flag=0x57;
367 4
368 4 }
369 3 } /* io_byte_ptr为IO区指针 */
370 2
371 2 /*========== Handling of the input data;input data处理输入数据============*/
372 2
373 2 /* Write the input data from the periphery to the ASIC */
374 2 TEST_flag=LR_flag;/*$*/
375 2 TEST_flag=LR_flag;
376 2
377 2 if(TEST_flag==0x12)
378 2 {
379 3 i_byte_ptr=((UBYTE*)0x22800L); /*$*/
380 3 for (i=0; i<user_io_data_len_ptr->inp_data_len; i++)
381 3 {
382 4 *(((UBYTE SPC3_PTR_ATTR*) user_input_buffer_ptr) + i) = *((i_byte_ptr) + i);
383 4 } /* user_input_buffer_ptr为全局XDATA变量 */
384 3 for (i=0; i<user_io_data_len_ptr->inp_data_len; i++)
385 3 {
386 4 *(((UBYTE SPC3_PTR_ATTR*) user_input_buffer_ptr) + i) = *((i_byte_ptr) + i);
387 4 }
388 3 user_input_buffer_ptr = DPS2_INPUT_UPDATE();/*写完后更新指针P1定下个数据用哪个BUFFER*/
389 3
390 3 LR_flag=0x21;/*$*/
391 3 LR_flag=0x21;
392 3
393 3 }
394 2
395 2
396 2
397 2 /*== Handling of the external diagnosis and other user defined actions 处理外部诊断和其它用户功能=====*/
398 2 /* ATTENTION注意: 这仅是一个例子 this is only an example */
399 2
400 2 /* Use the first Byte of the Input data as a service byte;使用Input data第一字节为服务字节*/
401 2 /* for the change diag function;WHp49 */
402 2
403 2 dps_chg_diag_srvc_byte_new = *((UBYTE*)(io_byte_ptr));
404 2
405 2 if (user_diag_flag) /* is a diagnosis buffer available? 全局变量user_diag_flag */
406 2 {
407 3 /* Is there a change in the service byte (1.input byte) */
408 3 if (dps_chg_diag_srvc_byte_new == dps_chg_diag_srvc_byte_old)
409 3 {
410 4 /* no action */
411 4 }
412 3 else
413 3 {
414 4 /*== Handling of the external diagnosis =====*/
415 4 /* only the least significant 3 byte are used PDF35*/
416 4 if ((dps_chg_diag_srvc_byte_new & 0x07) !=
417 4 (dps_chg_diag_srvc_byte_old & 0x07))
418 4 {
419 5 /* Mask过滤the 3 bits ; 全局变量diag_service_code */
420 5 diag_service_code = dps_chg_diag_srvc_byte_new & 0x07;
421 5
422 5 /* Write the length of the diagnosis data to the SPC3;见PDF35 */
423 5 if (dps_chg_diag_srvc_byte_new & 0x01)
424 5 diag_len = 16; /* max. value of the IM308B */
425 5 else
C51 COMPILER V7.02b USERSPC3_0810 11/01/2004 20:51:05 PAGE 8
426 5 diag_len = 6; /* 最少是六位,见PDF35 */
427 5
428 5 diag_len = DPS2_SET_DIAG_LEN(diag_len);/* 确定诊断字节长度;Hp9 */
429 5
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