That probably rules out using windows. Would have to run at real time priority, and I have no idea what accuracy that will give you.
In fact you may have to write your own kernel mode driver for that kind of stuff. It's not exactly what windows was designed to do. There are other real time OS out there. Myles. From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Colin/Mina Sent: Friday, 10 October 2008 4:28 p.m. To: [EMAIL PROTECTED]; NZ Borland Developers Group - Delphi List Subject: Re: [DUG] Controlling PC Hardware Ports Thanks, but I forgot to mention that I need sub-millisecond accuracy hence wanting to use the 'scope. Probably rules out using a standard Coms driver too. Cheers Colin ----- Original Message ----- From: Rohit Gupta <mailto:[EMAIL PROTECTED]> To: NZ Borland Developers Group - Delphi List <mailto:[email protected]> Sent: Friday, October 10, 2008 3:53 PM Subject: Re: [DUG] Controlling PC Hardware Ports The other thing to do is to log the timing (current time) to a log file Colin/Mina wrote: Hi, I want to monitor some code to ensure that I have some timing correct. I was hoping to hook my oscilloscope to a readily available electrical signal (Such as Serial Port RTS) and to add instructions in my code to set and clear the appropriate modem port. Unfortunately the old Turbo Pascal instructions that allowed this, eg Port[$2FC] := 2) // Set b2 of Modem Register and Port[$2FC] := NOT 2) // Clear b2 of Modem Register but these don't appear to be available in Delphi (not in D5 anyway). Any solutions please? Thanks Colin __________ Information from ESET NOD32 Antivirus, version of virus signature database 3509 (20081009) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ________________________________ _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: [email protected] Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to [EMAIL PROTECTED] with Subject: unsubscribe __________ Information from ESET NOD32 Antivirus, version of virus signature database 3509 (20081009) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com -- Rohit Gupta B.E. Elec. M.E. Mem IEEE Associate IEE Technical Manager Computer Fanatics Limited Tel +64 9 4892280 Fax +64 9 4892290 Email [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> Web www.cfl.co.nz <http://www.cfl.co.nz/> ________________________________ This email and any attachments contain information, which is confidential and may be subject to legal privilege and copyright. If you are not the intended recipient, you must not use, distribute or copy this email or attachments. If you have received this in error, please notify us immediately by return email and then delete this email and any attachments. ________________________________ _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: [email protected] Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to [EMAIL PROTECTED] with Subject: unsubscribe Attention: This communication is confidential and may be legally privileged. If you are not the intended recipient, please do not use, disclose, copy or distribute it, other than to return it to us with your confirmation that it has been deleted from your system.
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