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How to enable microphone Adafruit I2S SPH0645 on LPC54114?

Question asked by Jan Polivka on Jun 27, 2018
Latest reply on Jul 2, 2018 by jeremyzhou



I am trying to enable an Adafruit I2S microphone (SPH0645) on my LPC54114 board. I've been trying to use the i2s_interrupt_transfer example and the usb audio device example to try and read input from the microphone but I have not been successful.


When I use an I2S audio breakout board and just plug it in the board (pins 16,18,20 on J1), audio output works, so I assumed that this would similarly work for the microphone (pins 10,12,14) but this does not appear to be the case.


I am not really editing any code, so it's more of a question of how to edit to code rather than fixing it (unless it's broken to begin with).


Any tips?

Thank you very much



N.B. the microphone works, I tested it on Arduino MKRZero.