sysclk.tcl 4.47 KB
#################################
# SYSCLK (100MHz)               #
#################################


# Get delay from PAD_SYSCLK to *reg*/H02 ---------------------------

set sysclk_latency_max 100000

   foreach_in_collection cur_path \
       [ get_timing_paths -nworst 10000 -max_paths 10000 \
         -from [get_ports PAD_SYSCLK] \
         -to   [get_pins *reg*/H02] \
         -delay max_rise \
       ] {
           set cur_delay [ get_attribute $cur_path arrival   ]
           set cur_end   [ get_attribute $cur_path endpoint  ]
           set cur_name  [ get_attribute $cur_end  full_name ]
           echo [ format "%s : %s" $cur_name $cur_delay ]
           if {$cur_delay < $sysclk_latency_max} { set sysclk_latency_max $cur_delay }

   }
   echo [ format "sysclk_latency_max : %s" $sysclk_latency_max ]


# Create SYSCLK ----------------------------------------------------

create_clock \
 -name SYSCLK \
 -period 9.8 \
 -waveform [ list 0.0 4.9 ] \
 [ get_ports PAD_SYSCLK ]

set_propagated_clock \
 [ get_clocks SYSCLK ]

   set_clock_latency -source \
     [ expr 0 - $sysclk_latency_max ] \
     [ get_clocks SYSCLK ]

#/*
# * PAD_RST_L into all clock domains;
# * used as both synchronous and asynchronous reset;
# */
set_input_delay 1.0 -clock SYSCLK -max [list PAD_RST_L]
###set_input_delay 0.5 -clock SYSCLK -min [list PAD_RST_L]

#/*
# * delays of misc input-only ports;
# * asynchronous input, sampled with SYSCLK;
# */
set_input_delay 1.0 -clock SYSCLK -max [list PAD_BUTTON]
###set_input_delay 0.5 -clock SYSCLK -min [list PAD_BUTTON]

#/*
# * joy-channel ports;
# * bi-directional, asynchronous, sampled/driven by SYSCLK;
# * set output delay to 50% of cycle time to force flops close to pads;
# */
set_input_delay 1.0 -clock SYSCLK -max [get_ports PAD_JCHAN*]
set_output_delay  5 -clock SYSCLK -max [get_ports PAD_JCHAN*]
###set_input_delay 0.5 -clock SYSCLK -min [get_ports PAD_JCHAN*]
###set_output_delay 0.5 -clock SYSCLK -min [get_ports PAD_JCHAN*]

#/*
# * local controller x/y sticks ports;
# * input only, asynchronous, sampled by SYSCLK;
# */
set_input_delay 1.0 -clock SYSCLK -max [list PAD_LX0 PAD_LX1 PAD_LY0 PAD_LY1]
###set_input_delay 0.5 -clock SYSCLK -min [list PAD_LX0 PAD_LX1 PAD_LY0 PAD_LY1]

#/*
# * io bus;
# * inputs sampled by SYSCLK, outputs driven from SYSCLK;
# * set io delays to 50% of cycle time to force flops close to pads;
# */
set_input_delay 5 -clock SYSCLK -max [get_ports PAD_IO_AD*]
set_input_delay 5 -clock SYSCLK -max [list PAD_IO_DMARQ PAD_IO_INTR]
###set_input_delay 0.5 -clock SYSCLK -min [get_ports PAD_IO_AD*]
###set_input_delay 0.5 -clock SYSCLK -min [list PAD_IO_DMARQ PAD_IO_INTR]

set_output_delay  5 -clock SYSCLK -max [list PAD_IO_RST PAD_IO_ALE]
set_output_delay  5 -clock SYSCLK -max [list PAD_IO_IOR PAD_IO_IOW]
set_output_delay  5 -clock SYSCLK -max [get_ports PAD_IO_AD*]
set_output_delay  5 -clock SYSCLK -max [get_ports PAD_IO_CS*]
###set_output_delay 0.5 -clock SYSCLK -min [list PAD_IO_RST PAD_IO_ALE]
###set_output_delay 0.5 -clock SYSCLK -min [list PAD_IO_IOR PAD_IO_IOW]
###set_output_delay 0.5 -clock SYSCLK -min [get_ports PAD_IO_AD*]
###set_output_delay 0.5 -clock SYSCLK -min [get_ports PAD_IO_CS*]

#/*
# * flash bus, data move on PAD_IO_AD;
# * set io delays to 50% of cycle time to force flops close to pads;
# */
set_input_delay 1.0 -clock SYSCLK -max [list PAD_FL_RYBY PAD_FL_MD]
set_output_delay  5 -clock SYSCLK -max [get_ports PAD_FL_CE*]
set_output_delay  5 -clock SYSCLK -max [list PAD_FL_ALE PAD_FL_CLE]
set_output_delay  5 -clock SYSCLK -max [list PAD_FL_RE PAD_FL_WE PAD_FL_WP]
###set_input_delay 0.5 -clock SYSCLK -min [list PAD_FL_RYBY PAD_FL_MD]
###set_output_delay 0.5 -clock SYSCLK -min [get_ports PAD_FL_CE*]
###set_output_delay 0.5 -clock SYSCLK -min [list PAD_FL_ALE PAD_FL_CLE]
###set_output_delay 0.5 -clock SYSCLK -min [list PAD_FL_RE PAD_FL_WE PAD_FL_WP]

#/*
# * gpio bus;
# * bidirectional, sampled and driven by SYSCLK;
# */
set_input_delay 1.0 -clock SYSCLK -max [get_ports PAD_GPIO*]
set_output_delay  5 -clock SYSCLK -max [get_ports PAD_GPIO*]
###set_input_delay 0.5 -clock SYSCLK -min [get_ports PAD_GPIO*]
###set_output_delay 0.5 -clock SYSCLK -min [get_ports PAD_GPIO*]

#/*
# * usb pull drivers;
# */
set_output_delay 3 -clock SYSCLK -max [list PAD_USB_DP_HIGH0 PAD_USB_D_LOW_N0 PAD_USB_VBUS_ON0]
set_output_delay 3 -clock SYSCLK -max [list PAD_USB_DP_HIGH1 PAD_USB_D_LOW_N1 PAD_USB_VBUS_ON1]

set_input_delay 1.0 -clock SYSCLK -max [list PAD_USB_VBUS_VLD0 PAD_USB_ID0]
set_input_delay 1.0 -clock SYSCLK -max [list PAD_USB_VBUS_VLD1 PAD_USB_ID1]