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Interfacing TMS320F28xx with AD73311 codec

Started by Unomano October 26, 2006
Hello all,

I need help on how to interface AD73311 codec with TMS320F28xx through
McBSP.
I've read AD73311.pdf but still can not understand what is a reason to
send every word two times.
If someone has any experience or source code welcome to chat. 

tnx


Unomano wrote:

> Hello all, > > I need help on how to interface AD73311 codec with TMS320F28xx through > McBSP.
Don't use AD733xx. It is a very lousy but expensive codec. Use any of TLV320AICxxx codecs.
> I've read AD73311.pdf but still can not understand what is a reason to > send every word two times. > If someone has any experience or source code welcome to chat. >
Vladimir Vassilevsky DSP and Mixed Signal Design Consultant http://www.abvolt.com
pcb is already designed so i can not change it:(

Vladimir Vassilevsky wrote:
> Unomano wrote: > > > Hello all, > > > > I need help on how to interface AD73311 codec with TMS320F28xx through > > McBSP. > > Don't use AD733xx. It is a very lousy but expensive codec. Use any of > TLV320AICxxx codecs. > > > I've read AD73311.pdf but still can not understand what is a reason to > > send every word two times. > > If someone has any experience or source code welcome to chat. > > > > Vladimir Vassilevsky > > DSP and Mixed Signal Design Consultant > > http://www.abvolt.com
> > I need help on how to interface AD73311 codec with TMS320F28xx through > McBSP. > I've read AD73311.pdf but still can not understand what is a reason to > send every word two times. > If someone has any experience or source code welcome to chat. >
Are you using only one codec or two ? The 73322 is 2x 73311 here you send every command 2 times because the codecs are daisy chained We are using here the 73322 and configuring it is a mess, (but we also have the chip on the PCB yet ;-) Markus Greim