From owner-freebsd-alpha Tue May 25 1:29:41 1999 Delivered-To: freebsd-alpha@freebsd.org Received: from herring.nlsystems.com (nlsys.demon.co.uk [158.152.125.33]) by hub.freebsd.org (Postfix) with ESMTP id A7B5614FAD for ; Tue, 25 May 1999 01:29:36 -0700 (PDT) (envelope-from dfr@nlsystems.com) Received: from localhost (dfr@localhost) by herring.nlsystems.com (8.9.3/8.8.8) with ESMTP id JAA40808; Tue, 25 May 1999 09:30:04 +0100 (BST) (envelope-from dfr@nlsystems.com) Date: Tue, 25 May 1999 09:30:04 +0100 (BST) From: Doug Rabson To: Mohit Aron Cc: freebsd-alpha@freebsd.org Subject: Re: programmable interrupt timer In-Reply-To: <199905250007.TAA19365@cs.rice.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Mon, 24 May 1999, Mohit Aron wrote: > Hi, > the x86 machine use the 8253 programmable timer that can be programmed > to interrupt at various frequencies. Does the alpha have a similar feature ? > If so, can someone please tell me how to use it using from FreeBSD - I'm using > verion 4.0-current on a 500MHz 21164 alpha. The hardware is available on the alpha but I don't think its possible to use it from userland. What apis do you use on the x86 to access this timer? -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message