UART initialization
diff --git a/Makefile b/Makefile
index e787f93..4a22cf7 100644
--- a/Makefile
+++ b/Makefile
@@ -60,7 +60,7 @@
 	docker pull efabless/dv_setup:latest
 
 .PHONY: setup
-setup: install check-env install_mcw pdk openlane
+setup: install check-env install_mcw openlane
 
 # Openlane
 blocks=$(shell cd openlane && find * -maxdepth 0 -type d)
diff --git a/openlane/Core/config.tcl b/openlane/Core/config.tcl
deleted file mode 100644
index 62e430a..0000000
--- a/openlane/Core/config.tcl
+++ /dev/null
@@ -1,57 +0,0 @@
-# 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) Core
-
-set ::env(VERILOG_FILES) "\
-	$::env(CARAVEL_ROOT)/verilog/rtl/defines.v \
-	$script_dir/../../verilog/rtl/Processor_Tile.v"
-
-set ::env(DESIGN_IS_CORE) 0
-
-set ::env(CLOCK_PORT) "clock"
-set ::env(CLOCK_NET) ""
-set ::env(CLOCK_PERIOD) "20"
-
-set ::env(FP_SIZING) absolute
-set ::env(DIE_AREA) "0 0 500 500"
-
-# set ::env(FP_PIN_ORDER_CFG) $script_dir/pin_order.cfg
-
-set ::env(PL_BASIC_PLACEMENT) 0
-set ::env(PL_TARGET_DENSITY) 0.5
-set ::env(CELL_PAD) 2
-
-# 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) 1
diff --git a/openlane/user_proj_example/config.json b/openlane/user_proj_example/config.json
deleted file mode 100644
index c3de8af..0000000
--- a/openlane/user_proj_example/config.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-    "PDK"                      : "sky130A",
-    "STD_CELL_LIBRARY"         : "sky130_fd_sc_hd",
-    "CARAVEL_ROOT"             : "../../caravel",
-    "CLOCK_NET"                : "counter.clk",
-    "CLOCK_PERIOD"             : "10",
-    "CLOCK_PORT"               : "wb_clk_i",
-    "DESIGN_IS_CORE"           : "0",
-    "DESIGN_NAME"              : "user_proj_example",
-    "DIE_AREA"                 : "0 0 900 600",
-    "DIODE_INSERTION_STRATEGY" : "4",
-    "FP_PIN_ORDER_CFG"         : "pin_order.cfg",
-    "FP_SIZING"                : "absolute",
-    "GLB_RT_MAXLAYER"          : "5",
-    "GND_NETS"                 : "vssd1",
-    "PL_BASIC_PLACEMENT"       : "1",
-    "PL_TARGET_DENSITY"        : "0.05",
-    "RUN_CVC"                  : "1",
-    "VDD_NETS"                 : "vccd1",
-    "VERILOG_FILES"            : ["../../caravel/verilog/rtl/defines.v", "../../verilog/rtl/user_proj_example.v"]
-}
diff --git a/openlane/user_proj_example/config.tcl b/openlane/user_proj_example/config.tcl
deleted file mode 100755
index c9266ee..0000000
--- a/openlane/user_proj_example/config.tcl
+++ /dev/null
@@ -1,56 +0,0 @@
-# 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) "counter.clk"
-set ::env(CLOCK_PERIOD) "10"
-
-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) 1
diff --git a/openlane/user_proj_example/pin_order.cfg b/openlane/user_proj_example/pin_order.cfg
deleted file mode 100644
index 2fda806..0000000
--- a/openlane/user_proj_example/pin_order.cfg
+++ /dev/null
@@ -1,10 +0,0 @@
-#BUS_SORT
-
-#S
-wb_.*
-wbs_.*
-la_.*
-irq.*
-
-#N
-io_.*
diff --git a/openlane/user_project_wrapper/config.json b/openlane/user_project_wrapper/config.json
deleted file mode 100644
index d83d5bb..0000000
--- a/openlane/user_project_wrapper/config.json
+++ /dev/null
@@ -1,58 +0,0 @@
-{
-    "PDK"                             : "sky130A",
-    "STD_CELL_LIBRARY"                : "sky130_fd_sc_hd",
-    "CARAVEL_ROOT"                    : "../../caravel",
-    "CLOCK_NET"                       : "mprj.clk",
-    "CLOCK_PERIOD"                    : "10",
-    "CLOCK_PORT"                      : "user_clock2",
-    "CLOCK_TREE_SYNTH"                : "0",
-    "DESIGN_NAME"                     : "user_project_wrapper",
-    "DIE_AREA"                        : "0 0 2920 3520",
-    "DIODE_INSERTION_STRATEGY"        : "0",
-    "EXTRA_GDS_FILES"                 : "../../gds/user_proj_example.gds",
-    "EXTRA_LEFS"                      : "../../lef/user_proj_example.lef",
-    "FILL_INSERTION"                  : "0",
-    "FP_IO_HEXTEND"                   : "4.8",
-    "FP_IO_HLENGTH"                   : "2.4",
-    "FP_IO_HTHICKNESS_MULT"           : "4",
-    "FP_IO_VEXTEND"                   : "4.8",
-    "FP_IO_VLENGTH"                   : "2.4",
-    "FP_IO_VTHICKNESS_MULT"           : "4",
-    "FP_PDN_CHECK_NODES"              : "0",
-    "FP_PDN_CORE_RING"                : "1",
-    "FP_PDN_CORE_RING_HOFFSET"        : "14",
-    "FP_PDN_CORE_RING_HSPACING"       : "1.7",
-    "FP_PDN_CORE_RING_HWIDTH"         : "3.1",
-    "FP_PDN_CORE_RING_VOFFSET"        : "14",
-    "FP_PDN_CORE_RING_VSPACING"       : "1.7",
-    "FP_PDN_CORE_RING_VWIDTH"         : "3.1",
-    "FP_PDN_ENABLE_RAILS"             : "0",
-    "FP_PDN_HOFFSET"                  : "5",
-    "FP_PDN_HPITCH"                   : "180",
-    "FP_PDN_HSPACING"                 : "15.5",
-    "FP_PDN_HWIDTH"                   : "3.1",
-    "FP_PDN_MACRO_HOOKS"              : "mprj vccd1 vssd1",
-    "FP_PDN_VOFFSET"                  : "5",
-    "FP_PDN_VPITCH"                   : "180",
-    "FP_PDN_VSPACING"                 : "15.5",
-    "FP_PDN_VWIDTH"                   : "3.1",
-    "FP_PIN_ORDER_CFG"                : "../../caravel/openlane/user_project_wrapper_empty/pin_order.cfg",
-    "FP_SIZING"                       : "absolute",
-    "GLB_RT_MAXLAYER"                 : "5",
-    "GND_NETS"                        : "vssd1 vssd2 vssa1 vssa2",
-    "MACRO_PLACEMENT_CFG"             : "macro.cfg",
-    "MAGIC_ZEROIZE_ORIGIN"            : "0",
-    "PL_RANDOM_GLB_PLACEMENT"         : "1",
-    "PL_RESIZER_BUFFER_INPUT_PORTS"   : "0",
-    "PL_RESIZER_BUFFER_OUTPUT_PORTS"  : "0",
-    "PL_RESIZER_DESIGN_OPTIMIZATIONS" : "0",
-    "PL_RESIZER_TIMING_OPTIMIZATIONS" : "0",
-    "RUN_CVC"                         : "0",
-    "SYNTH_TOP_LEVEL"                 : "1",
-    "SYNTH_USE_PG_PINS_DEFINES"       : "USE_POWER_PINS",
-    "TAP_DECAP_INSERTION"             : "0",
-    "VDD_NETS"                        : "vccd1 vccd2 vdda1 vdda2",
-    "VERILOG_FILES"                   : ["../../caravel/verilog/rtl/defines.v","../../verilog/rtl/user_project_wrapper.v"],  
-    "VERILOG_FILES_BLACKBOX"          : ["../../caravel/verilog/rtl/defines.v","../../verilog/rtl/user_proj_example.v"]  
-}
-
diff --git a/openlane/user_project_wrapper/config.tcl b/openlane/user_project_wrapper/config.tcl
deleted file mode 100755
index f720e39..0000000
--- a/openlane/user_project_wrapper/config.tcl
+++ /dev/null
@@ -1,86 +0,0 @@
-# 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
-
-# Base Configurations. Don't Touch
-# section begin
-
-set ::env(PDK) "sky130A"
-set ::env(STD_CELL_LIBRARY) "sky130_fd_sc_hd"
-
-# YOU ARE NOT ALLOWED TO CHANGE ANY VARIABLES DEFINED IN THE FIXED WRAPPER CFGS 
-source $::env(CARAVEL_ROOT)/openlane/user_project_wrapper/fixed_wrapper_cfgs.tcl
-
-# YOU CAN CHANGE ANY VARIABLES DEFINED IN THE DEFAULT WRAPPER CFGS BY OVERRIDING THEM IN THIS CONFIG.TCL
-source $::env(CARAVEL_ROOT)/openlane/user_project_wrapper/default_wrapper_cfgs.tcl
-
-set script_dir [file dirname [file normalize [info script]]]
-
-set ::env(DESIGN_NAME) user_project_wrapper
-#section end
-
-# User Configurations
-
-## Source Verilog Files
-set ::env(VERILOG_FILES) "\
-	$::env(CARAVEL_ROOT)/verilog/rtl/defines.v \
-	$script_dir/../../verilog/rtl/user_project_wrapper.v"
-
-## Clock configurations
-set ::env(CLOCK_PORT) "user_clock2"
-set ::env(CLOCK_NET) "mprj.clk"
-
-set ::env(CLOCK_PERIOD) "10"
-
-## Internal Macros
-### Macro PDN Connections
-set ::env(FP_PDN_MACRO_HOOKS) "\
-	mprj vccd1 vssd1"
-
-### Macro Placement
-set ::env(MACRO_PLACEMENT_CFG) $script_dir/macro.cfg
-
-### Black-box verilog and views
-set ::env(VERILOG_FILES_BLACKBOX) "\
-	$::env(CARAVEL_ROOT)/verilog/rtl/defines.v \
-	$script_dir/../../verilog/rtl/user_proj_example.v"
-
-set ::env(EXTRA_LEFS) "\
-	$script_dir/../../lef/user_proj_example.lef"
-
-set ::env(EXTRA_GDS_FILES) "\
-	$script_dir/../../gds/user_proj_example.gds"
-
-# set ::env(GLB_RT_MAXLAYER) 5
-set ::env(RT_MAX_LAYER) {met4}
-
-# disable pdn check nodes becuase it hangs with multiple power domains.
-# any issue with pdn connections will be flagged with LVS so it is not a critical check.
-set ::env(FP_PDN_CHECK_NODES) 0
-
-# The following is because there are no std cells in the example wrapper project.
-set ::env(SYNTH_TOP_LEVEL) 1
-set ::env(PL_RANDOM_GLB_PLACEMENT) 1
-
-set ::env(PL_RESIZER_DESIGN_OPTIMIZATIONS) 0
-set ::env(PL_RESIZER_TIMING_OPTIMIZATIONS) 0
-set ::env(PL_RESIZER_BUFFER_INPUT_PORTS) 0
-set ::env(PL_RESIZER_BUFFER_OUTPUT_PORTS) 0
-
-set ::env(FP_PDN_ENABLE_RAILS) 0
-
-set ::env(DIODE_INSERTION_STRATEGY) 0
-set ::env(FILL_INSERTION) 0
-set ::env(TAP_DECAP_INSERTION) 0
-set ::env(CLOCK_TREE_SYNTH) 0
diff --git a/openlane/user_project_wrapper/macro.cfg b/openlane/user_project_wrapper/macro.cfg
deleted file mode 100644
index a7365ab..0000000
--- a/openlane/user_project_wrapper/macro.cfg
+++ /dev/null
@@ -1 +0,0 @@
-mprj 1175 1690 N
diff --git a/openlane/user_project_wrapper/pin_order.cfg b/openlane/user_project_wrapper/pin_order.cfg
deleted file mode 120000
index 8797dcd..0000000
--- a/openlane/user_project_wrapper/pin_order.cfg
+++ /dev/null
@@ -1 +0,0 @@
-../../../caravel/openlane/user_project_wrapper_empty/pin_order.cfg
\ No newline at end of file