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Visitor jdarko
Visitor
559 Views
Registered: ‎12-17-2018

Route signals from MIO pins to PL on Zynq

I would like to know if its possible to route some signals coming into MIO pins to the PL. If possible how would one accomplish that?

Something like this:

MIO_Redirect.png



Thanks.

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4 Replies
Voyager
Voyager
551 Views
Registered: ‎02-01-2013

Re: Route signals from MIO pins to PL on Zynq

Nope; sorry; no can do.

You can route some peripheral signals through the PL, but the PS MIO pins all have tricky, timing-sensitive muxes or demuxes attached to them--and none of them allows routing the pin to the PL.

-Joe G.

 

Voyager
Voyager
511 Views
Registered: ‎02-01-2013

Re: Route signals from MIO pins to PL on Zynq

Keep in mind: if you're absolutely desperate and your signals are relatively 'slow', you can mimic the connection you're trying to make by using an AXI master in the PL to 'drive' the MIO pins by configuring and manipulating them as PS GPIO's. You won't win any speed awards, but you might avoid the scowl-of-death from your manager. :-)
Visitor jdarko
Visitor
503 Views
Registered: ‎12-17-2018

Re: Route signals from MIO pins to PL on Zynq

Thanks Joe.

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Scholar vanmierlo
Scholar
477 Views
Registered: ‎06-10-2008

Re: Route signals from MIO pins to PL on Zynq


@jg_bds wrote:
Keep in mind: if you're absolutely desperate and your signals are relatively 'slow', you can mimic the connection you're trying to make by using an AXI master in the PL to 'drive' the MIO pins by configuring and manipulating them as PS GPIO's. You won't win any speed awards, but you might avoid the scowl-of-death from your manager. :-)

Wait until (s)he sees and understands that hack!

This might be ok when prototyping a first proof of concept, but releasing this as a final solution is no professional behaviour IMHO. Just do the redesign. I even wonder how much time and money you will loose to implementing such a hack.

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