>
> Thank you for your reply
>
>I means to config the mcbsp 64bit length per frame.
>
>The first 16bit is zeros,
>
>The second 16bit is the data of DXR[31:16],
>
>The third 16bit is zeros,
>
>The fourth 16bit is the data of DXR[15:0].
>
>I want to write a 32bit data to DXR in MCbsp interrupt once, which includes
both the left and right sample data of the AD,
>
>and the mcbsp can add 16bit zeros before left and right channels data to
meet the AD's data format.
>>
>>Here's what I use to transmit/receive 32-bit L/R samples
to/from
>>PCM3003 audio codec.
>>
>>Nero.
>>
>>
>>
>>--- <wyb1982@wyb1...> wrote:
>>
>>> c6xhi,
>>>
>>> I connect the mcbsp to a serial AD.
>>>
>>> The AD receives a frame data like this:
>>>
>>>
>>> |----0----|--left channel--|----0----|--right channel--|
>>>
>>>
|<-16bit->|<----16bit----->|<-16bit->|<-----16bit----->|
>>>
>>>
>>>
>>> I want to write a 32bit data to the transmit register of mcbsp
once,
>>>
>>> the 32bit contains both left and right channel of one sample.
>>>
>>> And the mcbsp sends the data like above.
>>>
>>>
>>>
>>> That is to say, the interrupt frequency of mcbsp is equal to
the
>>> sample rate of AD,
>>>
>>> not two times of the sample rate.
>>>
>>>
>>>
>>> Who knows how to config the Mcbsp?
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>___________________________________________________________
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>
>= = = = = = = = = = = = = = = = = = =
>
>
>
>wyb1982@wyb1...
>2005-11-12
>
= = = = = = = = = = = = = = = = = = = =
wyb1982@wyb1...
2005-11-13