Hi,
myproject sdc file looks like this:
# =============================================================
create_clock -name {clk75m} -period 13.333 -waveform { 6.666 13.333 } [get_ports {CLK1}]
create_clock -name {clk59m125} -period 16.912 -waveform { 8.456 16.912 } [get_ports {CLK2}]
derive_pll_clocks -create_base_clocks -use_net_name# (IMPORTANT! Input clock to the PLL is ONLY CLK1)
set_clock_groups -asynchronous
-group [get_clocks {clk75m}]
-group [get_clocks {clk59m125}]# ==============================================================
Time Quest reports setup violations in which the launching clock is CLK2 and the latching clock is
PLL's output clock (derived from CLK1).
Why TimeQuest disregards the set_clock_groups -asynchronous on a derived clock?
