From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4582D4D0.3060404@domain.hid> Date: Fri, 15 Dec 2006 18:01:04 +0100 From: Markus Franke MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="------------090008000708070106050508" Subject: [Xenomai-help] measuring external interrupt latency Reply-To: Markus.Franke@domain.hid List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: xenomai@xenomai.org This is a multi-part message in MIME format. --------------090008000708070106050508 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Dear Xenomai users/developers, I want to measure external interrupt latencies. Therefore, I have a parallel port loopback connector (25 pins). Pin 9 (D7) and Pin 10 (ACK) are connected. I would like to trigger an interrupt via Pin 9 and measure the time till the ISR is entered. Can somebody give me a hint how to start writing such an application. I read something about RTDM and I also had a look on the IRQ-Loop testsuite. I am wondering whether I can reuse some of this code which is written there. Besides, is it really necessary to use the RTDM framework? Sorry, but I am really new to Xenomai. I just want to have some small hints how to start developing. Thanks in advance, Markus Franke --------------090008000708070106050508 Content-Type: text/x-vcard; charset=utf-8; name="Markus.Franke.vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="Markus.Franke.vcf" begin:vcard fn:Markus Franke n:Franke;Markus adr;quoted-printable:;;Vettersstra=C3=9Fe 64/722;Chemnitz;Saxony;09126;Germany email;internet:Markus.Franke@domain.hid x-mozilla-html:FALSE url:http://www.tu-chemnitz.de/~franm version:2.1 end:vcard --------------090008000708070106050508--