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Merge pull request #50 from eatnumber1/higher-fmax

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Ignore paths which use shared clock lines.
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marqs85 2020-06-07 23:19:23 +03:00 committed by GitHub
commit a6d8c51ddd
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@ -81,6 +81,10 @@ set_false_path -from [get_registers {scanconverter_inst|H_* scanconverter_inst|V
# Ignore paths from registers which are updated only at leading edge of hsync
#set_false_path -from [get_registers {scanconverter:scanconverter_inst|line_idx scanconverter:scanconverter_inst|line_out_idx* scanconverter:scanconverter_inst|hmax*}]
# Ignore paths that cross clock domains from 3x to 2x and 5x to 4x, since they share a clock line, but cannot co-occur.
set_false_path -from [get_clocks {pclk_3x*}] -to [get_registers {scanconverter:scanconverter_inst|*_2x*}]
set_false_path -from [get_clocks {pclk_5x*}] -to [get_registers {scanconverter:scanconverter_inst|*_4x*}]
# Ignore paths to latency tester sync regs
set_false_path -to [get_registers {lat_tester:lt0|mode_synced* lat_tester:lt0|VSYNC_in_* lat_tester:lt0|trigger_*}]