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jawi / ols

OpenBench LogicSniffer repository
http://www.lxtreme.nl/ols/
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I2S Decoder Request #189

Open Aeroengineer1 opened 11 years ago

Aeroengineer1 commented 11 years ago

I was wondering if there might be a possibility of adding an I2S decoder to the current decoders that are available. It is a three wire, serial com specifically used for audio applications. It very similar to SPI, but in this case the shift of the signal line is to indicate the change from the left and right channels. I can dig out more details to help support the effort if needed.

Thanks again for your efforts. I downloaded the .9.7RC the other day, and I look forward to playing with it. I am also very much looking forward to the potential for continual streaming that is slated to be investigated in .9.8.

jawi commented 11 years ago

If you're able to supply me with capture files containing I2S-data, I'm willing to take a shot at it...

Aeroengineer1 commented 11 years ago

Give me a few weeks to get you a capture, I am designing the breakout board for the part in question. This is the first time that I have worked with this protocol myself. I will also gather some documentation for your on the protocol in general. I can get you the documentation ahead of the capture so that you have something to be able to familiarize yourself with. Thanks again.

jawi commented 11 years ago

I already have some documentation on the protocol (the "official" spec and an errata), its the capture files that would help me more. If you're willing to provide me those, that would be great!

Aeroengineer1 commented 11 years ago

Ok, understood. I will get those to you as soon as I can. I expect to have the design of the breakout board done by this weekend, and then it should take 2 weeks to get the board back. I should be able to get it soldered up pretty quickly, and I may have another week in getting the code to work the way that I want it to.

tom4tom commented 11 years ago

HI, I'm also working on a I2S Project and can provide you with a Project File Sample. I send it via mail....

tom4tom commented 11 years ago

@Aeroengineer1: witch I2S Chips do you use?

Aeroengineer1 commented 11 years ago

Tom,

I am using an SI Labs receiver chip. It is a SI47xx series chip. In this case, the I2S data is the audio data being converted to digital from the FM radio station.