From 7dafb7e3b2a037b04c836c51dc5ac96a661cf04f Mon Sep 17 00:00:00 2001
From: tangxifan <tangxifan@gmail.com>
Date: Wed, 11 Nov 2020 19:43:24 -0700
Subject: [PATCH] [Arch] Use global clock from tile port in caravel
 architecture

---
 ..._scan_chain_caravel_io_skywater130nm_fdhd_cc_openfpga.xml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ARCH/openfpga_arch_template/k4_frac_N8_register_scan_chain_caravel_io_skywater130nm_fdhd_cc_openfpga.xml b/ARCH/openfpga_arch_template/k4_frac_N8_register_scan_chain_caravel_io_skywater130nm_fdhd_cc_openfpga.xml
index 30549c4..85f4778 100644
--- a/ARCH/openfpga_arch_template/k4_frac_N8_register_scan_chain_caravel_io_skywater130nm_fdhd_cc_openfpga.xml
+++ b/ARCH/openfpga_arch_template/k4_frac_N8_register_scan_chain_caravel_io_skywater130nm_fdhd_cc_openfpga.xml
@@ -157,7 +157,7 @@
       <port type="input" prefix="Test_en" lib_name="SCE" size="1" is_global="true" default_val="0"/>
       <!-- <port type="input" prefix="reset" lib_name="RESET_B" size="1" is_global="true" default_val="1" is_reset="true"/> -->
       <port type="output" prefix="Q" size="1"/>
-      <port type="clock" prefix="clk" lib_name="CLK" size="1" is_global="true" default_val="0" />
+      <port type="clock" prefix="clk" lib_name="CLK" size="1" is_global="false" default_val="0" />
     </circuit_model>
     <circuit_model type="lut" name="frac_lut4" prefix="frac_lut4" dump_structural_verilog="true">
       <design_technology type="cmos" fracturable_lut="true"/>
@@ -214,6 +214,9 @@
     <direct name="shift_register" circuit_model_name="direct_interc" type="column" x_dir="positive" y_dir="positive"/>
     <direct name="scan_chain" circuit_model_name="direct_interc" type="column" x_dir="positive" y_dir="positive"/>
   </direct_connection>
+  <tile_annotations>
+    <global_port name="clk" tile_port="clb.clk" is_clock="true" default_val="0"/>
+  </tile_annotations>
   <pb_type_annotations>
     <!-- physical pb_type binding in complex block IO -->
     <pb_type name="io" physical_mode_name="physical" idle_mode_name="inpad"/>