Using the Zuboard syzygy ports

loukilitarik2020 3 days ago

Hi,

I'm trying to use a few PMODs sensors with the Zuboard, any recommendations on how to achieve that. I already bought the SZG-PMOD4 (Opal Kelly) but it didnt work for me.

Thanks

Tarik

0 iksevas 2 days ago

You will need to use the HSIO standard or TXR2 with PMOD voltage of 1.8V because of ZUBoard HP bank signal levels.

The Syzygy PMOD board is looking for VIO of 3.3V which ZUboard will not provide. So either you have no voltage provided to PMOD connector if add-on card is blocking that voltage or you have 1.2V/1.8V from ZUBoard which may not power your PMOD which requires 3.3V.

A properly designed add-on board would require level translation to support all of the voltages.

You may be better off using MikroE Click to PMOD but this is IO limited so you won’t get as many PMODs..
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0 loukilitarik2020 2 days ago in reply to iksevas

i think you are correct, it is a voltage level problem. are you aware of any expansion board with a voltage level translation for these Syzygy ports
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0 iksevas 2 days ago in reply to loukilitarik2020

Unfortunately I do not.
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