On Tue, 20 Oct 2015, Ankhit Vivekananda wrote:

Hello,

I have configured the TM320DM365 McBSP with clock and frame synchronization signals. Also see the ICS43432 MIC serial data on the oscilloscope, but do not get the right output in my application.

I have mapped the DaVinci McBSP with the CQ0093VC audio codec driver. Is this mapping correct or is it necessary to map the McBSP with ICS-43432 codec driver? Since, I have not applied the patch, I have used CQ0093VC codec driver.

Please do let me know if the ICS-43432 patch really necessary for the MIC to work.

Are you using the CQ0093VC driver to communicate with the ICS-43432, but no actual CQ0093VC codec then?

That won't work. The ICS-43432 basically uses 64 bits per frame, with 24 valid bits per channel, i.e. S24_LE or S32, whereas the CQ0093VC seems to only support the U8 or S16_LE formats.

There might be another codec driver which is more suitable, but it makes the most sense to use the ICS-43432 driver as it is intended for the hardware in question.

/Ricard