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Hi All, Thanx for loads of information on Daughter Card (PCM3003). I have gone through the code given in Dr. Rulph Chassaing's book(implemented by W.J. Gomes III). But I have not been able to understand How this has been implemented using only one McBSP? I have a confusion with regard to the LEFT and RIGHT channels of the codec. Are these 2 channels(left/right) physically seperated on the board? If yes, then how one can access them using only one serial port? I don't know whether I have framed the question in a right way?...!!! Can somebody throw light on this? Thanks in advance.... Regds Anand

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> But I have not been able to understand How > this has been implemented using only one McBSP? easily ;-) > I have a > confusion with regard to the LEFT and RIGHT channels > of the codec. > > Are these 2 channels(left/right) physically > seperated on the board? to some extent - yes - but hey - they are going through the same codec - aren't they? > If yes, then how one can access them > using only one serial port? did you read PCM3003 datasheet? on page 13 there is a section called "PCM Audio Interface" - it tells about how data is being sent from the codec to the McBSP... when the LRCIN signal is high - Left channel is being sent - when the LRCIN is low - right channel is being sent - it's as simple as that - so - just read the datasheet... > I don't know whether I > have framed the question in a right way?...!!! I think you asked your question correctly - however - it's obvious that you didn't read the datasheet of that codec ;-) well - good luck man - if you have any further questions - feel free to ask... __________________________________

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