UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

cancel
Showing results for 
Search instead for 
Did you mean: 
Highlighted
Adventurer
Adventurer
167 Views
Registered: ‎04-01-2008

Zynq MPSoC EV device.. Question on VCU Power Supply..

I am doing a custom designed board with a 7EV device on it, and I have a question about the VCU power supply.  In our production system, we are not going to use the VCU right away, but in the future we will use it. 

My question is, can I turn the VCU supply off, with all the other power rails up and running if I am not using the VCU, without any issues with the rest of the Zynq chip?   Do I need to ground the VCU power supply rail if I am not using it?   I can add the option to Ground the Power rail on the board design.  

Thanks for the help.

jechambe

0 Kudos
1 Reply
Moderator
Moderator
99 Views
Registered: ‎06-27-2017

Re: Zynq MPSoC EV device.. Question on VCU Power Supply..

Hi @jechambe-koe ,

We do not have such. YOu can try gating the clock &

requesting pmu to disable the VCU node[every HW IP block in mpsoc is a node in terms of power] from Linux/baremetal. 

YOu can refer below wiki to understand the power management and requesting/releasing a node from PMU.

https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18842232/Zynq+UltraScale+MPSoC+Power+Management+-+Linux+Kernel

UG1137 for VCU NODE. I see VCU node is 63.

 

Best Regards
Kranthi
--------------------------
Don't forget to reply, kudo, and accept as solution.
0 Kudos