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Discussion Groups | TMS320C54x | Interfacing DSK5402 to MAX500 DAC

Technical discussions about the TI C54x DSPs (including the c5401, c5402, c5402a, c5404, c5407, c5409, c5409a, c5410, c5410a, c5416, c5420, c5421, c5441, c549, c5470 and c5471).

  

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Interfacing DSK5402 to MAX500 DAC - kelvin_teh - Apr 23 21:55:27 2006

Hi everyone,

I am trying to interface the DSK5402 to a Maxim MAX500 DAC that I
managed to get my hands on.
I was planning to use McBSP0 to interface with the DAC's SPI interface.
However, on closer inspection of the MAX500 data sheets, I realized
that there could be problems, due to the following reasons:

1) The MAX500 expects a 10-bit word length (2 address bits and 8 data
bits) to be transmitted per sample.
2) It expects a "frame synch" (LDAC and LOAD) at the end of the
transmission of each word.

As such, I was wondering if it is still possible to use the McBSP to
interface with the DAC?
If not, would it be possible to do it via a software SPI driver,
utilizing GPIO pins?

Has anyone ever tried/successfully interfaced with a MAX500 DAC before?

Thanks for any info that might come to mind. :-)

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