From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cyrille Chartrain Subject: Re: OMAP1710 - Accessing audio codec from arm cpu Date: Tue, 12 Jun 2007 11:24:51 +0200 Message-ID: <466E6663.1080202@purplelabs.com> References: <466D6E01.1020402@purplelabs.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <466D6E01.1020402@purplelabs.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-omap-open-source-bounces@linux.omap.com Errors-To: linux-omap-open-source-bounces@linux.omap.com To: linux-omap-open-source@linux.omap.com List-Id: linux-omap@vger.kernel.org Cyrille Chartrain wrote: > I do not know the N80, but if the DSP is used, then your audio codec > is probably connected to the DSP via the McBSP1, which is in the DSP > domain. > Accessing the audio samples via the ARM would be possible if McBSP2 is > used instead of McBSP1 since McBSP2 is in the ARM domain. > So without a HW modification, I do not see a possibility here. > > Regards, > > Cyrille > Correction: McBSP1 is accessible by the DSP but also by ARM according to the datasheet (this is not clearly written, but the McBSP registers section gives the MPU address for McBSP1). So if you manage to stop the DSP execution, you might have a solution. Sorry for the first wrong answer. Cyrille