diff --git a/FPGA_quartus_ori/firebee1.qws b/FPGA_quartus_ori/firebee1.qws
index c338aba..c422e68 100644
Binary files a/FPGA_quartus_ori/firebee1.qws and b/FPGA_quartus_ori/firebee1.qws differ
diff --git a/FPGA_quartus_ori/firebee1.sdc b/FPGA_quartus_ori/firebee1.sdc
index b4e2637..49c93c7 100644
--- a/FPGA_quartus_ori/firebee1.sdc
+++ b/FPGA_quartus_ori/firebee1.sdc
@@ -61,6 +61,7 @@ derive_pll_clocks
 set_clock_uncertainty -rise_from [get_clocks {MAIN_CLK}] -rise_to [get_clocks {MAIN_CLK}]  0.100  
 set_clock_uncertainty -rise_from [get_clocks {MAIN_CLK}] -fall_to [get_clocks {MAIN_CLK}]  0.100  
 
+derive_clock_uncertainty
 
 #**************************************************************
 # Set Input Delay