hexcomtt.cpp

基本实现单片机和PC机的通信

//---------------------------------------------------------------------------

#include <vcl.h>
#include "hexcomtt.h"
#pragma hdrstop
#pragma package(smart_init)
//---------------------------------------------------------------------------

//   Important: Methods and properties of objects in VCL can only be
//   used in a method called using Synchronize, for example:
//
//      Synchronize(UpdateCaption);
//
//   where UpdateCaption could look like:
//
//      void __fastcall hexcomtt::UpdateCaption()
//      {
//        Form1->Caption = "Updated in a thread";
//      }
//---------------------------------------------------------------------------

__fastcall hexcomtt::hexcomtt(bool CreateSuspended)
        : TThread(CreateSuspended)
{
hexcom1 =new hexcom;
}
//---------------------------------------------------------------------------
void __fastcall hexcomtt::Execute()
{
        //---- Place thread code here ----
     while(!Terminated){
      union Fdata a;
      char *sp;
      unsigned long lrc;
      String buf;
      char inbuff[100],i;
      DWORD nByteRead,dwEvent,dwError;
      COMSTAT cs;
      ClearCommError(hexcom1->hComm,&dwError,&cs);
      if(cs.cbInQue>0){
      if(cs.cbInQue>sizeof(inbuff)){
      PurgeComm(hexcom1->hComm,PURGE_RXCLEAR);
      return;}            	
      ReadFile(hexcom1->hComm,inbuff,cs.cbInQue,&nByteRead,NULL);
      for(i=0;i<cs.cbInQue;i++)      
      switch (hexcom1->getbyte(inbuff[i])){
      case 1:
      {
      hexcom1->time2->Enabled=FALSE;
      sp=hexcom1->TXdata;
      WriteFile(hexcom1->hComm,sp,hexcom1->startdata(),&lrc,NULL);
      hexcom1->time2->Enabled=TRUE;
      hexcom1->eventok=0;
      
      }break;
      case 2:
     {     	
      hexcom1->time2->Enabled=FALSE;
      
      hexcom1->eventtemp.comnum=hexcom1->thecomnum;
      (*hexcom1->eopsp)(&hexcom1->eventtemp,1);        //_____________________________________________
      hexcom1->eventok=1;
     }break;
     
     case 0:
     {
    hexcom1->time2->Enabled=TRUE;
    hexcom1->eventok=0;
     }break;
     
     case 3:
     	{  
     		hexcom1->time2->Enabled=FALSE;
     		 hexcom1->eventok=1;
     		 
     	}break;
     }
    }
    
     
      if(hexcom1->eventok==1&&hexcom1->headSP!=hexcom1->lastSP)
      	{ hexcom1->time2->Enabled=false;
      		hexcom1->eventtemp=*hexcom1->headSP;
      		hexcom1->Myaddr=hexcom1->headSP->Addr;
      		hexcom1->WorR=hexcom1->headSP->eWorR;
      		hexcom1->ReadType=hexcom1->headSP->DataType;
      		hexcom1->TempAddr=hexcom1->headSP->DataAddr;
      		hexcom1->ReadNum=hexcom1->headSP->DataNum;
      		hexcom1->outtimenum=hexcom1->headSP->OTnum;
      		hexcom1->eopsp=hexcom1->headSP->opsp;  //___________________________________________________
      		hexcom1->headSP=hexcom1->headSP->next;
      		hexcom1->startchange();

      	}
        Sleep(10);
        }

}
//---------------------------------------------------------------------------