From: Mark Brown <broonie@sirena.org.uk>
To: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
"Nikula Jarkko (Nokia-D/Helsinki)" <jarkko.nikula@nokia.com>
Subject: Re: [PATCH 1/2] ASoC: omap-mcbsp: Correct the DSP_B mode
Date: Tue, 14 Apr 2009 13:01:48 +0100 [thread overview]
Message-ID: <20090414120148.GG12678@sirena.org.uk> (raw)
In-Reply-To: <200904141456.49897.peter.ujfalusi@nokia.com>
On Tue, Apr 14, 2009 at 02:56:49PM +0300, Peter Ujfalusi wrote:
> Is it so that it is:
> inverted bclk:
> sample is driven on the rising edge, sampled on the falling edge
> normal bclk:
> sample is driven on the falling edge, sampled on the rising edge
Yes.
> inverted frm:
> FS is active high
> normal frm:
> FS is active low
Ish. For DSP mode normal frame means that things are synced of the
rising edge of the frame clock so inverted frame should mean the falling
edge. Frame clock is allowed to be longer than one BCLK cycle, though
it is not normally and some things may need the low limit.
next prev parent reply other threads:[~2009-04-14 12:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-14 7:45 [PATCH 0/2] ASoC: DSP mode corrections for omap-mcbsp Peter Ujfalusi
2009-04-14 7:45 ` [PATCH 1/2] ASoC: omap-mcbsp: Correct the DSP_B mode Peter Ujfalusi
2009-04-14 7:45 ` [PATCH 2/2] ASoC: omap-mcbsp: Add DSP_A support Peter Ujfalusi
2009-04-14 8:20 ` [PATCH 1/2] ASoC: omap-mcbsp: Correct the DSP_B mode Jarkko Nikula
2009-04-14 8:40 ` Peter Ujfalusi
2009-04-14 9:02 ` Jarkko Nikula
2009-04-14 9:31 ` Mark Brown
2009-04-14 10:34 ` Peter Ujfalusi
2009-04-14 10:47 ` [PATCH 1/2] ASoC: omap-mcbsp: Correct the?DSP_B mode Mark Brown
2009-04-14 11:20 ` [PATCH 1/2] ASoC: omap-mcbsp: Correct the DSP_B mode Jarkko Nikula
2009-04-14 11:32 ` Arun KS
2009-04-14 12:58 ` Jarkko Nikula
2009-04-14 11:56 ` Peter Ujfalusi
2009-04-14 12:01 ` Mark Brown [this message]
2009-04-14 12:32 ` Peter Ujfalusi
2009-04-14 12:49 ` Jarkko Nikula
2009-04-14 13:00 ` Peter Ujfalusi
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