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| program consoleapp;
{$mode objfpc}{$H+}
uses
{$IFDEF UNIX}
cthreads, baseunix,
{$ELSE}
Windows,//registry,
{$ENDIF}
Classes, SysUtils, CustApp, crt
{ you can add units after this },
fpTimer, synaser;
type
TConsoleApp = class;
{ TComPortReadThread }
TComPortReadThread=class(TThread)
public
MustDie: boolean;
Owner: TConsoleApp;
protected
procedure CallEvent;
procedure Execute; override;
published
property Terminated;
end;
{ TConsoleApp }
TConsoleApp = class(TCustomApplication)
protected
procedure DoRun; override;
public
CurPos : integer;
FTempStr: String;
Timer1: TFPTimer;
SynSer: TBlockSerial;
OnRxData: TNotifyEvent;
ReadThread: TComPortReadThread;
constructor Create(TheOwner: TComponent); override;
destructor Destroy; override;
procedure Timer1Exec( Sender : TObject );
procedure DeviceOpen(Port: String);
procedure DeviceClose;
function ReadData: string;
procedure SerialRxData(Sender: TObject);
end;
{ TComPortReadThread }
procedure TComPortReadThread.CallEvent;
begin
if Assigned(Owner.OnRxData) then begin
Owner.OnRxData(Owner);
end;
end;
procedure TComPortReadThread.Execute;
begin
try
while not MustDie do begin
if Owner.SynSer.CanReadEx(100) then
Synchronize(@CallEvent);
end;
finally
Terminate;
end;
end;
{ TConsoleApp }
procedure TConsoleApp.Timer1Exec( Sender : TObject );
begin
writeln( datetimetostr(now) + ' -> I am alive !');
end;
procedure TConsoleApp.DeviceOpen(Port: String);
begin
SynSer.Connect(Port);
if SynSer.Handle=INVALID_HANDLE_VALUE then
raise Exception.Create('Could not open device '+ SynSer.Device);
SynSer.Config(9600,8,'N',0,false,false);
// Launch Thread
ReadThread := TComPortReadThread.Create(true);
ReadThread.Owner := Self;
ReadThread.MustDie := false;
// ReadThread.Resume; --> deprecated
ReadThread.Start;
end;
procedure TConsoleApp.DeviceClose;
begin
// flush device
if SynSer.Handle<>INVALID_HANDLE_VALUE then begin
SynSer.Flush;
SynSer.CloseSocket;
// FSynSer.Purge;
end;
// stop capture thread
if ReadThread<>nil then begin
ReadThread.FreeOnTerminate:=false;
ReadThread.MustDie:= true;
while not ReadThread.Terminated do begin
Sleep(1000);
end;
ReadThread.Free;
ReadThread:=nil;
end;
// close device
if SynSer.Handle<>INVALID_HANDLE_VALUE then begin
SynSer.Flush;
SynSer.CloseSocket;
end;
end;
function TConsoleApp.ReadData: string;
begin
result:='';
if SynSer.Handle =INVALID_HANDLE_VALUE then
Writeln('can not read from a closed port.');
// if FRcvLineCRLF then
// result:=SynSer.RecvString(0)
// else
result:=SynSer.RecvPacket(0);
end;
procedure TConsoleApp.SerialRxData(Sender: TObject);
var Str : string;
begin
Str := ReadData;
CurPos := Pos( Char(10) ,Str);
if CurPos = 0 then begin
FTempStr := FTempStr + Str;
end
else begin
FTempStr := FTempStr + Copy( Str, 1, CurPos-1);
Writeln(FtempStr);
FTempStr := Copy(Str,CurPos +1, Length(Str) - CurPos);
end;
end;
procedure TConsoleApp.DoRun;
var port: string;
begin
// parse parameters
if HasOption('p', 'port') then port := getOptionValue('p', 'port')
else port := '/dev/ttyUSB0';
DeviceOpen(port);
SynSer.SendString('hello' + CRLF);
timer1.StartTimer;
repeat
begin
// writeln(datetimetostr(now));
// SynSer.SendString(datetimetostr(now) + CRLF);
sleep(100);
// don't forget to call CheckSynchronize to let threads
// have the chance to do something
CheckSynchronize;
end;
until keypressed;
Terminate;
end;
constructor TConsoleApp.Create(TheOwner: TComponent);
begin
inherited Create(TheOwner);
StopOnException:=False;
end;
destructor TConsoleApp.Destroy;
begin
inherited Destroy;
end;
var
Application: TConsoleApp;
begin
Application:=TConsoleApp.Create(nil);
Application.Title:='ConsoleApp';
Application.Timer1 := TFPTimer.Create(nil);
Application.Timer1.Enabled := False;
Application.Timer1.interval := 10000;
try
Application.SynSer := TBlockSerial.Create;
except
on E : Exception do begin
Writeln(E.ClassName + ' error raised, with message : ' + E.Message);
end;
end;
Application.Timer1.onTimer := @Application.Timer1Exec;
Application.OnRxData := @Application.SerialRxData;
try
Application.Run;
finally
writeln('fin de programme');
Application.DeviceClose;
Application.Free;
end;
end. |
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