ai.ss 4.57 KB
/*****************************************************************************/
/* custom variables                                                          */
/*****************************************************************************/
module = "ai"
wire_load = 256000
standard_load = 0.01
clock = "clock"
clocks = { "clock" "vbus_clock" }
default_input_delay = 1.5
default_output_delay = 13.0
default_pin_delay = 10.0
default_input_load = 20
default_output_load = 20
default_pin_load = 150
default_drive_cell = "dfntnh"
default_drive_pin = "q"
default_period = 16.0
default_max_transition = 1.5
default_uncertainty = 1.0


/*****************************************************************************/
/* set the path and read                                                     */
/*****************************************************************************/
search_path = search_path \
   + "../src" \
   + "../../inc" \
   + "../../../lib/verilog/user" \
   + "../../syn"

read -f verilog cbus_driver.v
read -f verilog ai_controller.v
read -f verilog ai_abus.v
read -f verilog ai_dma.v
read -f verilog module + ".v"


/*****************************************************************************/
/* default environment                                                       */
/*****************************************************************************/
set_operating_conditions NOM
set_wire_load wire_load -mode top


/*****************************************************************************/
/* clock constraints                                                         */
/*****************************************************************************/
create_clock clocks -period default_period -waveform { 0.0 default_period / 2 }
set_clock_skew -propagated -uncertainty default_uncertainty clocks
set_dont_touch_network clocks


/*****************************************************************************/
/* default constraint                                                        */
/*****************************************************************************/
set_max_area 0
set_dont_touch { ne35hd130d/nt01d* }

set_input_delay default_input_delay -clock clock all_inputs() > /dev/null
set_output_delay default_output_delay -clock clock all_outputs() > /dev/null
set_load default_output_load * standard_load all_outputs() > /dev/null
set_load default_input_load * standard_load all_inputs() > /dev/null
set_driving_cell -cell default_drive_cell -pin default_drive_pin all_inputs() > /dev/null

set_drive 0 { clocks }
set_input_delay 0 { clocks }

set_max_transition default_max_transition current_design


/*****************************************************************************/
/* custom constraints                                                        */
/*****************************************************************************/
set_driving_cell -cell ni01d5 { cbus_read_enable cbus_write_enable }

set_driving_cell -cell nt01d5 { cbus_data }
set_load 100 * standard_load { cbus_data }
set_input_delay 10.0 -clock clock { cbus_data }
set_output_delay 10.0 -clock clock { cbus_data }

set_driving_cell -cell ni01d5 { dma_start }
set_load 100 * standard_load { dma_start }
set_max_fanout 2 * standard_load { dma_start }

set_driving_cell -cell ni01d5 { cbus_command cbus_select }
set_load 100 * standard_load { cbus_command cbus_select }
set_max_fanout 2 * standard_load { cbus_command cbus_select }

set_load default_pin_load * standard_load \
   { abus_data abus_word abus_clock }
set_output_delay default_pin_delay -clock clock \
   { abus_data abus_word abus_clock }

set_false_path -fall -from reset_l
set_max_fanout 2 * standard_load reset_l


/*****************************************************************************/
/* check                                                                     */
/*****************************************************************************/
link
check_design > module + ".lint"


/*****************************************************************************/
/* compile                                                                   */
/*****************************************************************************/
compile -map_effort high -ungroup_all


/*****************************************************************************/
/* write                                                                     */
/*****************************************************************************/
include "report.dc"

change_names -rules compass_rules -hierarchy
write -format edif -hierarchy -o module + ".edf" module
write -format db -hierarchy -o module + ".db" module

quit