| # SPDX-FileCopyrightText: 2020 Efabless Corporation |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| set ::env(PDK) "sky130A" |
| set ::env(STD_CELL_LIBRARY) "sky130_fd_sc_hd" |
| |
| set script_dir [file dirname [file normalize [info script]]] |
| |
| set ::env(DESIGN_NAME) user_proj_example |
| |
| set ::env(VERILOG_FILES) "\ |
| $::env(CARAVEL_ROOT)/verilog/rtl/defines.v \ |
| $script_dir/../../verilog/rtl/user_proj_example.v" |
| |
| set ::env(DESIGN_IS_CORE) 0 |
| |
| set ::env(CLOCK_PORT) "wb_clk_i" |
| set ::env(CLOCK_NET) "rng_chaos.clk" |
| set ::env(CLOCK_PERIOD) "20" |
| |
| set ::env(FP_SIZING) absolute |
| set ::env(DIE_AREA) "0 0 900 600" |
| |
| set ::env(FP_PIN_ORDER_CFG) $script_dir/pin_order.cfg |
| |
| set ::env(PL_BASIC_PLACEMENT) 1 |
| set ::env(PL_TARGET_DENSITY) 0.05 |
| |
| # Maximum layer used for routing is metal 4. |
| # This is because this macro will be inserted in a top level (user_project_wrapper) |
| # where the PDN is planned on metal 5. So, to avoid having shorts between routes |
| # in this macro and the top level metal 5 stripes, we have to restrict routes to metal4. |
| # |
| # set ::env(GLB_RT_MAXLAYER) 5 |
| |
| set ::env(RT_MAX_LAYER) {met4} |
| |
| # You can draw more power domains if you need to |
| set ::env(VDD_NETS) [list {vccd1}] |
| set ::env(GND_NETS) [list {vssd1}] |
| |
| set ::env(DIODE_INSERTION_STRATEGY) 4 |
| # If you're going to use multiple power domains, then disable cvc run. |
| set ::env(RUN_CVC) 0 |
| |
| set ::env(SYNTH_USE_PG_PINS_DEFINES) "USE_POWER_PINS" |
| |
| ################################################################## |
| # Placement |
| ################################################################## |
| set ::env(PL_BASIC_PLACEMENT) 0 |
| set ::env(PL_TARGET_DENSITY) 0.30 |
| set ::env(PL_TIME_DRIVEN) 0 |
| set ::env(PL_ROUTABILITY_DRIVEN) 1 |
| set ::env(PL_MAX_DISPLACEMENT_X) 600 |
| set ::env(PL_MAX_DISPLACEMENT_Y) 400 |
| set ::env(CELL_PAD) 4 |
| set ::env(PL_RESIZER_DESIGN_OPTIMIZATIONS) 1 |
| set ::env(PL_RESIZER_TIMING_OPTIMIZATIONS) 1 |
| set ::env(PL_RESIZER_SETUP_MAX_BUFFER_PERCENT) 30 |
| set ::env(PL_RESIZER_HOLD_MAX_BUFFER_PERCENT) 70 |
| set ::env(PL_RESIZER_ALLOW_SETUP_VIOS) 1 |
| set ::env(PL_RESIZER_HOLD_SLACK_MARGIN) 0.2 |
| set ::env(PL_RESIZER_MAX_WIRE_LENGTH) 300 |