# Relative placement constraints on the reset synchronizers.
# NOTE: The 8 ns is the period of the faster clock (i.e., the 125 MHz sysclk).
set_max_delay -datapath_only -from [get_cells infra/clocks/rst_reg] -to [get_cells infra/clocks/rst_*_reg] 8.000

# Dummy clock to help specify input/output delays for asynchronous interfaces.
create_clock -period 1.000 -name async_inouts
set_clock_groups -asynchronous -group [get_clocks async_inouts]

# Decouple the front-panel diagnostic leds.
#set_property iob true [get_ports user_leds]
set_output_delay -clock [get_clocks async_inouts] 0.000 [get_ports user_leds]
#set_false_path -to [get_ports user_leds]

# Decouple the various I2C lines.
# NOTE: Careful with the sysmon I2C lines. That is the only slave. The rest are all masters.
#set_property iob true $ports
set_output_delay -clock [get_clocks async_inouts] 0.000 [get_ports -regexp i2c_(?!sysmon).*_scl]

#set_property iob true $ports
set_input_delay -clock [get_clocks async_inouts] 0.000 [get_ports -regexp i2c_(?!sysmon).*_sda]
set_output_delay -clock [get_clocks async_inouts] 0.000 [get_ports -regexp i2c_(?!sysmon).*_sda]

#set_property iob true [get_ports i2c_sysmon_*]
set_input_delay -clock [get_clocks async_inouts] 0.000 [get_ports i2c_sysmon_*]

# Decouple the various clock generator control lines.
#set_property iob true [get_ports clkgen_*_reset_b]
set_output_delay -clock [get_clocks async_inouts] 0.000 [get_ports clkgen_*_reset_b]
#set_property iob true [get_ports clkgen_*_in_sel_n]
set_output_delay -clock [get_clocks async_inouts] 0.000 [get_ports clkgen_*_in_sel]
# Decouple the recovered clock selector line as well.
#set_property iob true [get_ports sel_recclk_out]
set_output_delay -clock [get_clocks async_inouts] 0.000 [get_ports sel_recclk_out]

# Decouple the SFP control lines.
set_input_delay -clock [get_clocks async_inouts] 0.000 [get_ports sfp_*_los]
set_input_delay -clock [get_clocks async_inouts] 0.000 [get_ports sfp_*_modabs]
set_input_delay -clock [get_clocks async_inouts] 0.000 [get_ports sfp_*_txfault]
set_output_delay -clock [get_clocks async_inouts] 0.000 [get_ports sfp_*_disable]

# Decouple the flash PROM I/O lines.
set_input_delay -clock [get_clocks async_inouts] 0.000 [get_ports flash_data]
set_output_delay -clock [get_clocks async_inouts] 0.000 [get_ports flash_*]