free Writeln ( 'Serial Port was freed successfully!' ) end end begin l := check_affirmation () if l = true then RS232_connect () else Writeln ( 'Program quit! ' ) end. Wireshark shows nothing beyond a TCP three-way handshake to the appropriate server and port. I've tried checking for exceptions - none are thrown. I attempt to login to an IMAP server over SSL (IMAPS) but the call to Login fails. RecvByte ( 10000 ), 2 ), ' ' ) until keypressed //Important!!! finally Writeln ( 'Serial Port will be freed.' ) ser. I have some code written in Lazarus / FreePascal that uses the Synapse IMAPSend library unit. LastError )) Sleep ( 1000 ) repeat Write ( IntToHex ( ser. config ( 1200, 7, 'N', SB1, False, False ) Write ( 'Device: ' + ser. Connect ( '/dev/ttyUSB0' ) //ComPort Sleep ( 1000 ) ser. ' ) end else begin check_affirmation := false Writeln ( 'Abort' ) end end procedure RS232_connect var ser : TBlockSerial begin ser := TBlockSerial. Uses Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, ExtCtrls, var l : boolean function check_affirmation () : boolean var k : string begin Writeln ( 'To quit the application do NOT use CTRL-C! Instead, press any key to quit the application! ' + 'Confirm this notification to continue the application! ' + '=Quit, =Confirm, continue! ' ) Writeln ( 'Your choice: ' ) Read ( k ) if StrtoInt ( k ) = 1 then begin check_affirmation := true Writeln ( 'OK, application continues. The code can be compiled on different environments using conditional compiles, like this: Therefore, this article will basically cover hardware access methods on different platforms. Uniform multi-platform access to hardware devices is not implemented by the Free Pascal Runtime Library (RTL) or by the LCL - the underlying operating systems are often different enough to make that very difficult.
SYNAPSE LIBRARY FOR FREE PASCAL SERIAL
These devices include, but are not limited to: ISA, PCI, USB, parallel port, serial port. This page describes various ways of accessing hardware devices on Lazarus. 3.4 Using 'ioperm' to access ports on Linux.
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