Power supplies don't rise monotonically

Hello,

Looks like the decoupling of your design is not optimized.

Please use PDN to check your decoupling capacitor requirements according to your Ztarget and target running frequency.

link : https://www.intel.com/content/www/us/en/support/programmable/support-resources/signal-power-integrity/power-distribution-network.html

regards,

Farabi