mirror of https://github.com/efabless/caravel.git
45 lines
2.3 KiB
Tcl
45 lines
2.3 KiB
Tcl
set ::env(WB_CLK_PERIOD) 25
|
|
set ::env(SCK_CLK_PERIOD) 100
|
|
|
|
create_clock [get_ports {"wb_clk_i"} ] -name "wb_clk_i" -period $::env(WB_CLK_PERIOD)
|
|
create_clock [get_ports {"mgmt_gpio_in[4]"} ] -name "mgmt_gpio_in" -period $::env(SCK_CLK_PERIOD)
|
|
|
|
# change the csclk pin whenever the synthesis receipe changes
|
|
create_generated_clock -name "csclk" -source [get_ports {"mgmt_gpio_in[4]"} ] -divide_by 1 [get_pins {"_8889_/X"} ]
|
|
|
|
set input_delay_value [expr $::env(WB_CLK_PERIOD) * $::env(IO_PCT)]
|
|
set output_delay_value [expr $::env(WB_CLK_PERIOD) * $::env(IO_PCT)]
|
|
puts "\[INFO\]: Setting output delay to: $output_delay_value"
|
|
puts "\[INFO\]: Setting input delay to: $input_delay_value"
|
|
|
|
|
|
set sck_clk_indx [lsearch [all_inputs] [get_port "mgmt_gpio_in[4]"]]
|
|
#set rst_indx [lsearch [all_inputs] [get_port resetn]]
|
|
set all_inputs_wo_clk [lreplace [all_inputs] $sck_clk_indx $sck_clk_indx]
|
|
#set all_inputs_wo_clk_rst [lreplace $all_inputs_wo_clk $rst_indx $rst_indx]
|
|
set all_inputs_wo_clk_rst $all_inputs_wo_clk
|
|
|
|
set_max_fanout $::env(SYNTH_MAX_FANOUT) [current_design]
|
|
set_input_delay $input_delay_value -clock [get_clocks $::env(CLOCK_PORT)] $all_inputs_wo_clk
|
|
set_output_delay $output_delay_value -clock [get_clocks $::env(CLOCK_PORT)] [all_outputs]
|
|
|
|
# TODO set this as parameter
|
|
set_driving_cell -lib_cell $::env(SYNTH_DRIVING_CELL) -pin $::env(SYNTH_DRIVING_CELL_PIN) [all_inputs]
|
|
set cap_load [expr $::env(SYNTH_CAP_LOAD) / 1000.0]
|
|
puts "\[INFO\]: Setting load to: $cap_load"
|
|
set_load $cap_load [all_outputs]
|
|
|
|
puts "\[INFO\]: Setting timing derate to: [expr {$::env(SYNTH_TIMING_DERATE) * 10}] %"
|
|
set_timing_derate -early [expr {1-$::env(SYNTH_TIMING_DERATE)}]
|
|
set_timing_derate -late [expr {1+$::env(SYNTH_TIMING_DERATE)}]
|
|
|
|
puts "\[INFO\]: Setting clock uncertainity to: $::env(SYNTH_CLOCK_UNCERTAINITY)"
|
|
set_clock_uncertainty $::env(SYNTH_CLOCK_UNCERTAINITY) [get_clocks {wb_clk_i}]
|
|
set_clock_uncertainty $::env(SYNTH_CLOCK_UNCERTAINITY) [get_clocks {csclk}]
|
|
set_clock_uncertainty $::env(SYNTH_CLOCK_UNCERTAINITY) [get_clocks {mgmt_gpio_in}]
|
|
|
|
puts "\[INFO\]: Setting clock transition to: $::env(SYNTH_CLOCK_TRANSITION)"
|
|
set_clock_transition $::env(SYNTH_CLOCK_TRANSITION) [get_clocks {wb_clk_i}]
|
|
set_clock_transition $::env(SYNTH_CLOCK_TRANSITION) [get_clocks {csclk}]
|
|
set_clock_transition $::env(SYNTH_CLOCK_TRANSITION) [get_clocks {mgmt_gpio_in}]
|