unit Unit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, SPComm;
type
TForm1 = class(TForm)
Comm1: TComm;
Memo1: TMemo;
Button1: TButton;
procedure FormCreate(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure Button1Click(Sender: TObject);
procedure Comm1ReceiveData(Sender: TObject; Buffer: Pointer;
BufferLength: Word);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
viewstring:string;
i:integer;
rbuf,sbuf:array[1..6]of byte;
implementation
{$R *.DFM}
procedure TForm1.FormCreate(Sender: TObject);
begin
comm1.StartComm;
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
comm1.StopComm;
end;
procedure senddata;
var
i:integer;
commflg:boolean;
begin
viewstring:='';
commflg:=true;
for i:=1 to 6 do
begin
if not form1.Comm1.WriteCommData(@sbuf,1) then
begin
commflg:=false;
break;
end;
sleep(2);
viewstring:=viewstring+inttohex(sbuf,2)+'';
end;
viewstring:='发送'+viewstring;
form1.Memo1.Lines.Add(viewstring);
form1.Memo1.Lines.Add('');
if not commflg then messagedlg('发送失败!',mterror,[mbyes],0);
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
sbuf[1]:=byte($f0); {帧头}
sbuf[2]:=byte($01); {命令号}
sbuf[3]:=byte($ff);
sbuf[4]:=byte($ff);
sbuf[5]:=byte($01);
sbuf[6]:=byte($0f); {帧尾}
senddata;{调用发送函数}
end;
procedure TForm1.Comm1ReceiveData(Sender: TObject; Buffer: Pointer;
BufferLength: Word);
var
i:integer;
begin
viewstring:='';
move(buffer^,pchar(@rbuf^),bufferlength);//[red]这句出错[/red]
for i:=1 to bufferlength do
viewstring:=viewstring+inttohex(rbuf,2)+'';
viewstring:='接收'+viewstring;
memo1.lines.add(viewstring);
memo1.lines.add('');
end;
end.