| create_clock -period 10 -waveform {0 5} clk_bufg | |
| create_clock -period 10 -waveform {0 5} clk_ibuf | |
| create_clock -period 10 -waveform {2.5 7.5} main_clkout0 | |
| create_clock -period 10 -waveform {2.5 7.5} main_clkout0_bufg | |
| create_clock -period 2.5 -waveform {0 1.25} main_clkout1 | |
| create_clock -period 2.5 -waveform {0 1.25} main_clkout1_bufg | |
| create_clock -period 5 -waveform {1.25 3.75} main_clkout2 | |
| create_clock -period 5 -waveform {1.25 3.75} main_clkout2_bufg |