From: Steve Simon <steve@quintile.net>
To: 9front@9front.org
Subject: Re: [9front] Getting Started with Kernel Development?
Date: Mon, 26 Apr 2021 00:36:17 +0100 [thread overview]
Message-ID: <27373800-545A-47DB-B17C-B8DB67A60FBE@quintile.net> (raw)
In-Reply-To: <CAFSF3XNKTR+hybdf19nAUGqV9Ka7X=FSCBM=qMDwjLbE4A2POw@mail.gmail.com>
there was a gsoc project which added the crude audio out to the raspberry pi2 under the labs kernel, this did not work on the pi3 though it is probably not too hard to fix.
i2s is not a bad solution as mont of the pi hats take the i2s feed from the gpio pins; the pi soc has an i2s interface in it.
better results can be achieved if you reverse the clock direction lock to clocks from a dac card with a pair of crystals on it. the i2c clock divider on the pi doesn’t generate very stable 48k (or is it 44.1?, one of them is a problem).
-Steve
next prev parent reply other threads:[~2021-04-26 9:53 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-25 14:15 chötrin.
2021-04-25 16:07 ` cinap_lenrek
2021-04-25 17:20 ` hiro
2021-04-25 17:21 ` hiro
2021-04-25 23:36 ` Steve Simon [this message]
2021-04-26 9:33 ` hiro
2021-04-26 13:01 ` Steve Simon
2021-04-25 22:37 ` chötrin.
2021-04-26 17:08 ` Daniel Morandini
2021-04-26 17:17 ` hiro
2021-04-27 9:39 ` Daniel Morandini
2021-04-27 11:07 ` cinap_lenrek
2021-04-28 8:34 ` Daniel Morandini
2021-04-29 5:10 ` kjn
2021-04-29 11:07 ` Eli Cohen
2021-04-30 1:12 ` chötrin.
2021-04-30 1:24 ` Eli Cohen
2021-04-30 7:36 ` hiro
2021-04-26 23:40 ` chötrin.
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