• State Verified Answer
  • Locked Locked
  • Replies 1 reply
  • Subscribers 73 subscribers
  • Views 462 views
  • Users 0 members are here
Attachments (0)
Nordic Case Info
  • Case ID: 284631
Options
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Can NCS-ADC convert microphone analog signal into digital signal?

yoyou

Hello

NCS1.8.0   Windows10  X64;

Can [v1.8.0\zephyr\tests\drivers\adc] convert microphone analog signal into digital signal? for I2S 8bit 8kHz

  

thanks

Best Regards

Parents
  • +1

    Hello,

    Yes, you may use the SAADC peripheral to generate samples from a microphone and then transfer them elsewhere using the I2S peripheral, sure.
    You should configure the SAADC to do periodic sampling at the required frequency through connecting it to a TIMER instance through the PPI peripheral - i.e use the PPI peripheral to make the TIMER CAPTURE/COMPARE event trigger the SAMPLE task of the SAADC, and then have the SAADC's DONE event handler stage the buffer for transfer over I2S.

    Best regards,
    Karl

Reply
  • +1

    Hello,

    Yes, you may use the SAADC peripheral to generate samples from a microphone and then transfer them elsewhere using the I2S peripheral, sure.
    You should configure the SAADC to do periodic sampling at the required frequency through connecting it to a TIMER instance through the PPI peripheral - i.e use the PPI peripheral to make the TIMER CAPTURE/COMPARE event trigger the SAMPLE task of the SAADC, and then have the SAADC's DONE event handler stage the buffer for transfer over I2S.

    Best regards,
    Karl

Children
No Data
Related
Terms of service