LVCMOS33 support?

Question

Hi,

I am trying to use Zynq-MMP 7100 to receive data from a PMODMIC3 microphone using SPI protocol but failed. The microphone need 3.3V power supply but I found no 3.3V port on either JX1 or JX2. I wonder if it's possible for MMP to support LVCMOS33? Or do you suggest me to change a microphone. Thank you so much!

Best,

Chang

Former Member · Accepted Answer

If you are using the Avnet MMP Baseboard2 with your Zynq MMP, you can set the FMC_VADJ rail on the Baeboard2 to 2.5V or 3.3V via SW15 switch. If you are using your own Baseboard, you can drive the Zynq MMP JX1_VCCIO_SE or JX2_VCCIO_SE with 3.3V supply.