mtdemo1.c

1553B总线应用设计中MT模式示例

/* ILC Data Device Corp.
 *
 *        Advanced Communication Engine Integrated 1553 Terminal
 *        (ACE) 'C' Software Library
 *
 *        BUS-69080 rel 4.0 05-MAR-1998
 *
 *        Copyright (c) 1995,96,97,98 by ILC Data Device Corp.
 *        All Rights Reserved.
 *
 * mtdemo1.c
 *          Demonstrates use of monitor mode using polling of the
 *          ACE stack pointer to determine if messages have been rcvd
 *          off-loading monitor stack on a message by message basis.
 */

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

/* uncomment the following if the ACELIB dll is being used */
/*#define __IMPORTDLL__*/

#include <stdace.h>

void DisplayMsg(MsgType*Msg);

void main ()
{

  MsgType msg;
  BuConf_t Conf;
  BuError_t Err;

  clrscr();

  printf("%s\n\n",BuRev());

  Err=BuInit("ace.cfg",&Conf);

  if(Err) {
		 printf("BuError %d %s\n",Err,BuErrorStr(Err));
		 return;
  }

  if(BuValid()) {

  BuMTOpen();

  BuMTStkType(MT_DOUBLE,CMD256,DATA1024);

  /* def stack A to have a command stack at address 0, initially */
  /* pointing to address 0x40 and a length of 256 words. and define */
  /* the data stack to be at address 0x400, with the pointer initially */
  /* starting at 0x500 and a length of 0x400 */

  BuMTDefStk(MT_STACKA,0X0000,0X0040,0X0400,0x100);

  /* def stack B to have a command stack at address 0x100, initially */
  /* pointing to address 0x140 and a length of 256 words. and define */
  /* the data stack to be at address 0x800, with the pointer initially */
  /* starting at 0x900 and a length of 0x400 */

  BuMTDefStk(MT_STACKB,0x0100,0x40,0x0800,0x100);

  /* enable all subaddress's */
  BuMTEnableRT(MT_ALL,MT_ALL,MT_ALL);

  BuMTRun(); /* start the monitor up */

  printf("Monitor Running -- waiting for messages\n");

  do {
	  if(BuMTReadMsg(&msg)) {
			 DisplayMsg(&msg);
	  }
  } while(!kbhit());

  BuMTClose();

  } else printf("Error with card!\n");

  BuClose();
}


void DisplayMsg(MsgType*Msg)
{
  U16BIT i;

  printf("Message Type = %s",BuMsgTypeStr(Msg->Type));
  if(Msg->BlockStatus&MT_ERR)printf(" (EXCEPTION)\n");else printf("\n");


  printf(" Cmd1 %04X %s\n",Msg->CmdWord1,BuCmdStr(Msg->CmdWord1));

  if(Msg->CmdWord2flag) {
		 printf(" Cmd2 %04X %s\n",Msg->CmdWord2,BuCmdStr(Msg->CmdWord2));
  }

  printf(" wc %d\n",Msg->WordCount);
  printf(" dl %d\n",Msg->DataLength);
  printf(" Time %u uS\n",Msg->TimeTag*2); /*2us resolution*/
  printf(" BSW  %04X %s\n", Msg->BlockStatus,
									 BuMTBSWErrorStr(Msg->BlockStatus));

  for(i=0;i<Msg->DataLength;++i) {
			if(i==0)printf(" Data ");
			printf("%04X  ",Msg->Data[i]);
			if((i%6)==5)printf("\n      ");
  }

  if(Msg->Status1flag)printf("\n Sta1 %04X",Msg->Status1);
  if(Msg->Status2flag)printf("\n Sta2 %04X",Msg->Status2);
  printf("\n\n");
}