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CCS/TMS320C6748: How to read DACID(DAC80504) spi0 of tms320c6748?

Ramachandra Parlapalli
Expert 1800 points
Part Number: TMS320C6748
Other Parts Discussed in Thread: DAC80504,

Tool/software: Code Composer Studio

Hai Sir,

I am using TMS320C6748 DSP Through SPI0 DAC80504 connected,

While Chip Select(CS)  , SCLK, DIO and DIO all values are getting through oscilloscope, but in reading of dac ID is junk data getting

Actually i am sending the data 0x8100 (based on below things)

but id also getting 0x00810000  whatever sending data we are getting.

any sample code for DAC80504 for TMS320C6748.

Could you suggest any sample codes or procedure.

Thanking you,

Ramachandra

  • 0
    TI__Mastermind 27355 points

    Hello Ramachandra,

    If you share which software package you are using, we can point you to some SPI examples but I don't think we have any examples interfacing to that DAC specifically. 

    Have you seen section 9.1 in the DAC80504 datasheet?

    It may help if you could capture the SPI output from the DSP using a logic analyzer or oscilloscope and post it here as well.

    Regards,
    Sahin