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How to get SDK versions of DMIC examples going

Question asked by James Whitney on Mar 12, 2019
Latest reply on Apr 4, 2019 by James Whitney

Hello, I am migrating from LPCOpen DMIC examples to MCUXpresso SDK DMIC examples. I am using the LPCXpresso54114 Audio and Voice Kit with the MAO shield. Previously, I built and ran the LPCOpen 'periph_i2s_dmic' example.  I take the CODEC output from the shield into an amplifier/headphones. This example worked just fine 'out-of-the-box'.

I am now trying the various SDK DMIC examples. There are two projects which are supposed to send data to the CODEC in a similar way: 1 - The 'DMIC_I2S_CODEC' project and 2 - the 'DMIC_I2S_DMA' project. So far I have been unable to get any audio output from either of these projects.

Also, in both projects there are two sections of code which are commented out; should these be uncommented ? Both sections ?