| # Copyright (C) 2017-2020  The Project X-Ray Authors | 
 | # | 
 | # Use of this source code is governed by a ISC-style | 
 | # license that can be found in the LICENSE file or at | 
 | # https://opensource.org/licenses/ISC | 
 | # | 
 | # SPDX-License-Identifier: ISC | 
 | source "$::env(XRAY_DIR)/utils/utils.tcl" | 
 |  | 
 | proc run {} { | 
 |     create_project -force -part $::env(XRAY_PART) design design | 
 |     read_verilog top.v | 
 |     synth_design -top top | 
 |  | 
 |     set_property -dict "PACKAGE_PIN $::env(XRAY_PIN_00) IOSTANDARD LVCMOS33" [get_ports clk] | 
 |     set_property -dict "PACKAGE_PIN $::env(XRAY_PIN_01) IOSTANDARD LVCMOS33" [get_ports stb] | 
 |     set_property -dict "PACKAGE_PIN $::env(XRAY_PIN_02) IOSTANDARD LVCMOS33" [get_ports di] | 
 |     set_property -dict "PACKAGE_PIN $::env(XRAY_PIN_03) IOSTANDARD LVCMOS33" [get_ports do] | 
 |  | 
 |     set_property CFGBVS VCCO [current_design] | 
 |     set_property CONFIG_VOLTAGE 3.3 [current_design] | 
 |     set_property BITSTREAM.GENERAL.PERFRAMECRC YES [current_design] | 
 |  | 
 |     set_property CLOCK_DEDICATED_ROUTE FALSE [get_nets clk_IBUF] | 
 |  | 
 |     place_design | 
 |     route_design | 
 |  | 
 |     create_cell -reference VCC vcc_cell | 
 |     set vcc_pin [get_pins vcc_cell/P] | 
 |  | 
 |     create_net vcc_net | 
 |     set vcc_net [get_nets vcc_net] | 
 |     connect_net -net $vcc_net -objects $vcc_pin | 
 |  | 
 |     create_cell -reference GND gnd_cell | 
 |     set gnd_pin [get_pins gnd_cell/G] | 
 |  | 
 |     create_net gnd_net | 
 |     set gnd_net [get_nets gnd_net] | 
 |     connect_net -net $gnd_net -objects $gnd_pin | 
 |  | 
 |     set fp [open params.csv r] | 
 |  | 
 |     # Skip header line | 
 |     gets $fp line | 
 |  | 
 |     # This is done post-placement to remove PROHIBIT on some sites. | 
 |     puts "Creating CARRY4's" | 
 |     while {[gets $fp line] >= 0} { | 
 |         set parts [split [string trim $line] ","] | 
 |         set val [lindex $parts 1] | 
 |         set site [lindex $parts 2] | 
 |  | 
 |         set cell [create_cell -reference CARRY4 carry4_$site] | 
 |         set_property PROHIBIT 0 [get_sites $site] | 
 |         set_property KEEP true $cell | 
 |         set_property DONT_TOUCH 1 $cell | 
 |         set_property LOC $site $cell | 
 |  | 
 |         if { $val == 1 } { | 
 |             connect_net -net $vcc_net -objects [get_pins carry4_$site/CI] | 
 |         } else { | 
 |             connect_net -net $gnd_net -objects [get_pins carry4_$site/CI] | 
 |         } | 
 |     } | 
 |     puts "Done creating CARRY4's" | 
 |  | 
 |     write_checkpoint -force design.dcp | 
 |     write_bitstream -force design.bit | 
 | } | 
 |  | 
 | run |