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CCS/TMS320C6713B: INTERFACING BETWEEN TMS320C6713 AND ADS8345 USING MCASP

Shaik Sajida
Prodigy 45 points
Part Number: TMS320C6713B
Other Parts Discussed in Thread: ADS8345, TLV320AIC23

Tool/software: Code Composer Studio

Hi,

Can you provide example source code to interface between TMS320C6713 and ADS8345 USING McASP. 

Thanks,

Sajida

  • 0
    TI__Guru**** 161600 points

    Hi,

    Sorry, as far as I know there are no such examples, as this is not a typical use case. Examples provided by TI are supposed to work on reference EVM boards, which may differ from the various customer applications.

    Best Regards,
    Yordan

  • 0 in reply to Yordan Kovachev
    Prodigy 45 points

    Hi,

    We need a source code for interfacing between TMS320C6713 and ADS8345 by using McASP.

    Thanks,

    Sajida

  • 0 in reply to Yordan Kovachev
    Prodigy 45 points

    Hi,

    I am using a TI DSP C6713B.

    I want to connect the McASP1 to ADC ADS8345.

    My aim is to get serial (or in TDM format) data from 8-ch microphones that are connected to ADS8345.

    I am trying to program the ADC ADS8345 using McASP and have a couple of questions.

    1) Is it requred to program the ADS8345 (precision A to D Converter) using McASP?

    2) After initialization of McASP, I am not able to see clock and framesync (probed on the respective pins

    3) After debugging the code in CCS V5.5, I found that the execution stoped at while loop as shown here

         /*---------------------------------------------------------------*/
         /* Take transmit and receive state machine out of reset          */
         /*---------------------------------------------------------------*/       

         MCASP_enableSm(hMcasp, MCASP_XMTRCV);
         while(!(MCASP_FGETH(hMcasp,GBLCTL,RSMRST) & MCASP_FGETH(hMcasp,GBLCTL,XSMRST)));
        
    (4) Can anyone please help me to solve this problem.

    Thanks,
    Sajida

  • 0 in reply to Shaik Sajida
    TI__Mastermind 27355 points

    Hello Sajida,

    Unfortunately, TI does not have any example code showing how to interface the C6713 to an ADC using McASP. 

    There is a McASP example project provided by Spectrum Digital that might be of help. It can be located in the "Target Code" zip file at the following link.

    http://c6000.spectrumdigital.com/dsk6713/revc/ 

    This example shows how to interface to the TLV320AIC23 audio codec, which contains multibit sigma-delta ADCs and DACs.

    I hope this helps.

    Regards,
    Sahin