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TMS320C5515EVM and Stethoscope Front End

Simon Attard
Intellectual 775 points

Hi all,

 

I am using a TMS320C5515EVM with a digital stethoscope front end module. I am having a problem with accessing the audio codec on the Front end module. The problem with this is that both the EVM and the front end have a TLV320AIC codec. Thus, both of them have the same I2C address.

How can I connect to the codec on the front end, and not the one on the EVM?

 

Thanks a lot 

 

Simon Attard

  • 0
    Intellectual 775 points

    The TMS230C5515 EVM ships with some code samples. One of these samples is used to test the function of the AIC3204 codec on the EVM.
    When I ran this test, it was successful.

    However, then I plugged in the Digital Stethoscope FE and ran the AIC3204 test again. The test ran, but no sound came out of the headphones.

    I cannot understand why this is happening, because the AIC on the EVM uses I2S2 while the AIC on the DS FE uses I2S1.

    Any ideas?