| # Input clock | 
 | create_clock -period 10 clk100_ibuf -waveform {0.000 5.000} | 
 |  | 
 | # Input clock BUFG | 
 | create_clock -period 10 main_pll_clkin -waveform {0.000 5.000} | 
 |  | 
 | # PLL BUFG feedback | 
 | create_clock -period 10 builder_pll_fb -waveform {0.000 5.000} | 
 | create_clock -period 10 builder_pll_fb_bufg -waveform {0.000 5.000} | 
 |  | 
 | # PLL CLKOUT0 | 
 | create_clock -period 20 main_clkout0 -waveform {0.000 10.000} | 
 | # BUFG CLKOUT0 | 
 | create_clock -period 20 sys_clk -waveform {0.000 10.000} | 
 |  | 
 | # PLL CLKOUT1 | 
 | create_clock -period 5 main_clkout1 -waveform {0.000 2.500} | 
 | # BUFG CLKOUT1 | 
 | create_clock -period 5 sys4x_clk -waveform {0.000 2.500} | 
 |  | 
 | # PLL CLKOUT2 | 
 | create_clock -period 5 main_clkout2 -waveform {1.250 3.750} | 
 | # BUFG CLKOUT2 | 
 | create_clock -period 5 sys4x_dqs_clk -waveform {1.250 3.750} | 
 |  | 
 | # PLL CLKOUT3 | 
 | create_clock -period 5 main_clkout3 -waveform {0.000 2.500} | 
 | # BUFG CLKOUT3 | 
 | create_clock -period 5 clk200_clk -waveform {0.000 2.500} |