From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <51AC31A2.5010907@xenomai.org> Date: Mon, 03 Jun 2013 08:03:14 +0200 From: Gilles Chanteperdrix MIME-Version: 1.0 References: <4cacd80b.2131b.13ef60cf09e.Coremail.ericvic@163.com> <51A79898.50805@xenomai.org> <34806652.2924.13ef838eb26.Coremail.ericvic@163.com> <4855a071.2a22.13ef83b0d46.Coremail.ericvic@163.com> <51A835DE.5020409@xenomai.org> <700980f4.7d37.13ef927183f.Coremail.ericvic@163.com> <27b32d48.5247.13efee65625.Coremail.ericvic@163.com> <51A9C9EF.2040702@xenomai.org> <37d33293.2abd.13f07ada45c.Coremail.ericvic@163.com> In-Reply-To: <37d33293.2abd.13f07ada45c.Coremail.ericvic@163.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Subject: Re: [Xenomai] freescale(imx53) with xenomai patch List-Id: Discussions about the Xenomai project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: =?UTF-8?B?5bWM5YWl5byP5bel56iL5biI?= Cc: xenomai@xenomai.org On 06/03/2013 03:36 AM, 嵌入式工程师 wrote: > To prevent re-entry You do not need to do that: - hardware interrupts are off, so, there is no possible reentry - if the interrupt if of the "level" type, the flow handler already does it, and with some edge type interrupt handler, you risk to miss interrupts. -- Gilles.