Hi all,
I am using the TLV320AIC3204EVM-K evaluation module with a few different microphones. While I am able to get an output through the headphones with an analog microphone and linking IN1_L to HPL, I cannot get any output if the signal has to go through the ADC/DAC.
I switched to using a digital microphone ( https://www.cuidevices.com/product/resource/cmm-4030dt-26354-tr.pdf ), connecting the mic's data output to GPIO and clock to MISO. In the software, I have chosen GPIO under "Digital Mic Input Pin" and Left ADC under "Digital Mic Routing". I have unmuted and powered on ADC Gain Control, and I have unmuted and powered on HP Output Gain Control. In the Digital Settings, I have selected MCLK and under CDIV_CLKIN I have powered on the Mux. Under "MISO and GPIO Control", I have selected MISO as a Clock output for digital microphone, and I have selected GPIO as a Digital microphone input.
Strangely, when I check the MISO test point, it just shows a high signal (~2.2V), not a clock.
Please let me know what settings I should change/add for this to work. Thank you!