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| Subject: | Re: LF: Raspberry PI ,gpio pin 4 clock rate under 32 KHz HOW ? |
| From: | "Graham" <[email protected]> |
| Date: | Thu, 27 Mar 2014 21:40:36 -0000 |
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Joe,Yes , that can be done , but relies on a constant cpu 'load' , not sure as to how much jitter there could be using that method . seems the documentation is a bit thin , if you want to go out side the usual .. Tnx-G, -------------------------------------------------- From: <[email protected]> Sent: Wednesday, March 26, 2014 10:25 PM To: <[email protected]> Subject: Re: LF: Raspberry PI ,gpio pin 4 clock rate under 32 KHz HOW ? Hi Graham, This is probably too simplistic, but you can toggle the output with a sleep(t) between to make a square f=1/(2t). Cheers Joe VO1NA On Wed, 26 Mar 2014, Graham wrote:Raspberry PI ,gpio pin 4 clock rate under 32 KHz HOW ?Q Is there a way to produce a audio frequency clock . from gpio pin - 4 ?Dividing the main clock , would appear to be limited to app 32KHzis there another way to produce lower / audio frequency's ? Tnx -G, |
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