From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4C36F32A.4080404@domain.hid> Date: Fri, 09 Jul 2010 12:00:10 +0200 From: Gilles Chanteperdrix MIME-Version: 1.0 References: <20100316150037.11405209mnid677k@domain.hid> <4B9FB4A8.6000903@domain.hid> <20100316183247.34995yxgivc3ilj4@domain.hid> <4B9FC1F2.1070002@domain.hid> <20100316191024.117214qo52wr9aps@domain.hid> <20100709114655.46571rvnivjguu4w@domain.hid> In-Reply-To: <20100709114655.46571rvnivjguu4w@domain.hid> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-help] Mini2440 on the kernel 2.6.30.1 List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Michel He Cc: xenomai@xenomai.org Michel He wrote: > ok, thanks for help as far as concerned the S3C2440 issues on that board. > > So what has been previously found out is: no external clock connected > on pin clk1 of timer 3, instead timer 2 and 3 are used to drive the > sound module. Since I get changed the timer 3 to timer 1, it can boot > to shell. However, the xenomai test give a 7000 us of average latency, > it is even worst than pure Linux system. Also, the USB, nor the camera > won't work at all (the system get freezed when plug them in). The UART > and LCD are OK. The sound is buggy due to lags, it seems the buffer > not continuously filled up by linux. So far the others modules are not > tested. > > Something should get wrong, but no idea how to figure it out. The timer issue you had should have been fixed in the latest I-pipe versions. Could you try Xenomai 2.5.3 and one of the I-pipe patch it contains and see if it has the same latencies issues? -- Gilles.