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Account for more merged registers

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This commit is contained in:
Alex Forencich 2019-03-28 16:33:01 -07:00
parent e938844783
commit ad3905ac4d
1 changed files with 4 additions and 2 deletions
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6
syn/axis_async_fifo.tcl
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@ -35,8 +35,10 @@ foreach fifo_inst [get_cells -hier -filter {(ORIG_REF_NAME == axis_async_fifo ||
# reset synchronization
set reset_ffs [get_cells -hier -regexp ".*/(s|m)_rst_sync\[123\]_reg_reg" -filter "PARENT == $fifo_inst"]
set_property ASYNC_REG TRUE $reset_ffs
set_false_path -to [get_pins -of_objects $reset_ffs -filter {IS_PRESET || IS_RESET}]
if {[llength $reset_ffs]} {
set_property ASYNC_REG TRUE $reset_ffs
set_false_path -to [get_pins -of_objects $reset_ffs -filter {IS_PRESET || IS_RESET}]
}
if {[llength [get_cells $fifo_inst/s_rst_sync2_reg_reg]]} {
set_false_path -to [get_pins $fifo_inst/s_rst_sync2_reg_reg/D]