From 802d72a606ff799939df6de6c67978aee566e35a Mon Sep 17 00:00:00 2001
From: tangxifan <tangxifan@gmail.com>
Date: Sun, 8 Nov 2020 16:31:33 -0700
Subject: [PATCH] [SNPS_PT] Add template script to generate SDF from post-PnR
 netlists

---
 SNPS_PT/SCRIPT/generate_sdf.tcl | 44 +++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 SNPS_PT/SCRIPT/generate_sdf.tcl

diff --git a/SNPS_PT/SCRIPT/generate_sdf.tcl b/SNPS_PT/SCRIPT/generate_sdf.tcl
new file mode 100644
index 0000000..337b7d6
--- /dev/null
+++ b/SNPS_PT/SCRIPT/generate_sdf.tcl
@@ -0,0 +1,44 @@
+#####################################################################
+# A template script to generate SDF file from post-PnR results
+# using Synopsys PrimeTime
+#####################################################################
+ 
+##################################
+# Define environment variables
+set SKYWATER_PDK_HOME "../../PDK/skywater-pdk";
+set FPGA_NETLIST_HOME "../../FPGA1212_FC_HD_SKY_PNR/fpga_core";
+set SDF_HOME "../SDF"
+#
+# Enable reporting ALL the timing paths even those are NOT constrained
+set_app_var svr_enable_vpp true
+
+set search_path ". * ${SKYWATER_PDK_HOME}/vendor/synopsys/results/lib/skywater130_fd_sc_hd/db_nldm"
+
+set link_path "* sky130_fd_sc_hd__tt_025C_1v80.db"
+
+# Top-level module name
+set DESIGN_NAME fpga_core;
+
+set FPGA_NETLIST_FILES "fpga_core_icv_in_design.pt.v"
+
+##################################
+# Read timing libraries
+read_db "${SKYWATER_PDK_HOME}/vendor/synopsys/results/lib/sky130_fd_sc_hd/db_nldm/sky130_fd_sc_hd__tt_025C_1v80.db"
+
+##################################
+# Read post-PnR netlists
+read_verilog ${FPGA_NETLIST_HOME}/${FPGA_NETLIST_FILES}
+link_design ${DESIGN_NAME}
+
+##################################
+# Read post-PnR parasitics
+read_parasitics ${FPGA_NETLIST_HOME}/fpga_core_icv_in_design.nominal_25.spef
+
+##################################
+# Write sdf file
+write_sdf -version 3.0 ${SDF_HOME}/FPGA1212_FC_HD_SKY_PNR/fpga_core_icv_in_design.pt.sdf
+
+##################################
+# Finish and quit 
+# Comment it out if you want to debug
+#exit