From d676cfd64f603b0874ac37a64a12b3497415c7e0 Mon Sep 17 00:00:00 2001 From: Istvan Csomortani Date: Tue, 27 Oct 2020 10:48:08 +0000 Subject: [PATCH] adv7513/de10nano: Define the USB clock --- projects/adv7513/de10nano/system_constr.sdc | 1 + 1 file changed, 1 insertion(+) diff --git a/projects/adv7513/de10nano/system_constr.sdc b/projects/adv7513/de10nano/system_constr.sdc index 913e24e12..d8af8dad6 100644 --- a/projects/adv7513/de10nano/system_constr.sdc +++ b/projects/adv7513/de10nano/system_constr.sdc @@ -1,5 +1,6 @@ create_clock -period "20.000 ns" -name sys_clk_50mhz [get_ports {sys_clk}] +create_clock -period "16.666 ns" -name usb_clk_60mhz [get_ports {usb1_clk}] derive_pll_clocks derive_clock_uncertainty