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Is it possible to use the sign-extend feature of the SPORT to extend incoming 16-bit data to 32-bits?

Question asked by kaushal Employee on Apr 13, 2009
Latest reply on Apr 13, 2009 by kaushal

Hi,

 

Just wondering if it's possible to use the sign-extend feature of the SPORT to extend incoming 
16-bit data to 32-bits on the Blackfin 527?

 

The documentation on the sign-extend mode is a  little
sparse and I can't figure out how to set it up. I would also like to  use DMA
to transfer this data. When I set DMA up to do a 32-bit transfer  with sign-extend
turned on, the SPORT seems to just send 2 16-bit words of  received data
instead of one sign-extended word.

 

Thanks!

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