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LVCMOS33 support?

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3 posts / 0 new
gaochangw
Junior(0)
LVCMOS33 support?

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

npoureh
Moderator(4)
If you are using the Avnet

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.

gaochangw
Junior(0)
Thank you!

Thank you so much!