From 37db02b7265e1dc1cf5fb93a45cfd3fc2091daa0 Mon Sep 17 00:00:00 2001
From: Joshua Fife <jpfife17@gmail.com>
Date: Tue, 10 Aug 2021 16:47:29 -0600
Subject: [PATCH 1/5] Added common makefile and modified counter makefile for
 testing

Signed-off-by: Joshua Fife <jpfife17@gmail.com>
---
 common/Makefile           | 86 +++++++++++++++++++++++++++++++++++++++
 xc7/counter_test/Makefile | 72 ++++----------------------------
 2 files changed, 94 insertions(+), 64 deletions(-)
 create mode 100644 common/Makefile

diff --git a/common/Makefile b/common/Makefile
new file mode 100644
index 0000000..0565a09
--- /dev/null
+++ b/common/Makefile
@@ -0,0 +1,86 @@
+BUILDDIR := ${current_dir}/build
+
+# Set board properties based on TARGET variable
+ifeq ($(TARGET),arty_35)
+  DEVICE := xc7a50t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a35tcsg324-1
+  CONSTRAINT_PATH := ${current_dir}/arty
+  BOARD_BUILDDIR := ${BUILDDIR}/arty_35
+else ifeq ($(TARGET),arty_100)
+  DEVICE := xc7a100t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a100tcsg324-1
+  CONSTRAINT_PATH := ${current_dir}/arty
+  BOARD_BUILDDIR := ${BUILDDIR}/arty_100
+else ifeq ($(TARGET),nexys4ddr)
+  DEVICE := xc7a100t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a100tcsg324-1
+  CONSTRAINT_PATH := ${current_dir}/nexys4ddr
+  BOARD_BUILDDIR := ${BUILDDIR}/nexys4ddr
+else ifeq ($(TARGET),zybo)
+  DEVICE := xc7z010_test
+  BITSTREAM_DEVICE := zynq7
+  PARTNAME := xc7z010clg400-1
+  CONSTRAINT_PATH := ${current_dir}/zybo
+  BOARD_BUILDDIR := ${BUILDDIR}/zybo
+  SOURCES := ${current_dir}/counter_zynq.v
+else ifeq ($(TARGET),nexys_video)
+  DEVICE := xc7a200t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a200tsbg484-1
+  CONSTRAINT_PATH := ${current_dir}/nexys_video
+  BOARD_BUILDDIR := ${BUILDDIR}/nexys_video
+else
+  DEVICE := xc7a50t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a35tcpg236-1
+  CONSTRAINT_PATH := ${current_dir}/basys3
+  BOARD_BUILDDIR := ${BUILDDIR}/basys3
+endif
+
+# Determine the type of constraint being used
+ifneq ($(wildcard ${CONSTRAINT_PATH}.xdc),)
+  XDC_CMD := -x ${CONSTRAINT_PATH}.xdc
+endif
+ifneq ($(wildcard ${CONSTRAINT_PATH}.sdc),)
+  SDC_CMD := -s ${CONSTRAINT_PATH}.sdc
+endif
+ifneq ($(wildcard ${CONSTRAINT_PATH}.pcf),)
+  PCF_CMD := -p ${CONSTRAINT_PATH}.pcf
+endif
+
+.DELETE_ON_ERROR:
+
+# Build design
+all: ${BOARD_BUILDDIR}/${TOP}.bit
+
+${BOARD_BUILDDIR}:
+	mkdir -p ${BOARD_BUILDDIR}
+  #Check if design includes initialization files for memory
+  ifneq (${MEM_INIT},)
+    #if there are memory initialization files link them to the build/board_type directory
+	  ln -s ${MEM_INIT} ${BOARD_BUILDDIR}
+  endif
+
+${BOARD_BUILDDIR}/${TOP}.eblif: | ${BOARD_BUILDDIR}
+	cd ${BOARD_BUILDDIR} && symbiflow_synth -t ${TOP} -v ${SOURCES} -d ${BITSTREAM_DEVICE} -p ${PARTNAME} ${XDC_CMD} 2>&1 > /dev/null
+
+${BOARD_BUILDDIR}/${TOP}.net: ${BOARD_BUILDDIR}/${TOP}.eblif
+	cd ${BOARD_BUILDDIR} && symbiflow_pack -e ${TOP}.eblif -d ${DEVICE} ${SDC_CMD} 2>&1 > /dev/null
+
+${BOARD_BUILDDIR}/${TOP}.place: ${BOARD_BUILDDIR}/${TOP}.net
+	cd ${BOARD_BUILDDIR} && symbiflow_place -e ${TOP}.eblif -d ${DEVICE} ${PCF_CMD} -n ${TOP}.net -P ${PARTNAME} ${SDC_CMD} 2>&1 > /dev/null
+
+${BOARD_BUILDDIR}/${TOP}.route: ${BOARD_BUILDDIR}/${TOP}.place
+	cd ${BOARD_BUILDDIR} && symbiflow_route -e ${TOP}.eblif -d ${DEVICE} ${SDC_CMD} 2>&1 > /dev/null
+
+${BOARD_BUILDDIR}/${TOP}.fasm: ${BOARD_BUILDDIR}/${TOP}.route
+	cd ${BOARD_BUILDDIR} && symbiflow_write_fasm -e ${TOP}.eblif -d ${DEVICE}
+
+${BOARD_BUILDDIR}/${TOP}.bit: ${BOARD_BUILDDIR}/${TOP}.fasm
+	cd ${BOARD_BUILDDIR} && symbiflow_write_bitstream -d ${BITSTREAM_DEVICE} -f ${TOP}.fasm -p ${PARTNAME} -b ${TOP}.bit
+
+clean:
+	rm -rf ${BUILDDIR}
\ No newline at end of file
diff --git a/xc7/counter_test/Makefile b/xc7/counter_test/Makefile
index 07bc449..a12a7ba 100644
--- a/xc7/counter_test/Makefile
+++ b/xc7/counter_test/Makefile
@@ -1,68 +1,12 @@
-mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST)))
-current_dir := $(patsubst %/,%,$(dir $(mkfile_path)))
-TOP := top
-VERILOG := ${current_dir}/counter.v
-DEVICE := xc7a50t_test
-BITSTREAM_DEVICE := artix7
-BUILDDIR := build
+export mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST)))
+export current_dir := $(patsubst %/,%,$(dir $(mkfile_path)))
 
-ifeq ($(TARGET),arty_35)
-  PARTNAME := xc7a35tcsg324-1
-  XDC := ${current_dir}/arty.xdc
-  BOARD_BUILDDIR := ${BUILDDIR}/arty_35
-else ifeq ($(TARGET),arty_100)
-  PARTNAME := xc7a100tcsg324-1
-  XDC := ${current_dir}/arty.xdc
-  DEVICE := xc7a100t_test
-  BOARD_BUILDDIR := ${BUILDDIR}/arty_100
-else ifeq ($(TARGET),nexys4ddr)
-  PARTNAME := xc7a100tcsg324-1
-  XDC := ${current_dir}/nexys4ddr.xdc
-  DEVICE := xc7a100t_test
-  BOARD_BUILDDIR := ${BUILDDIR}/nexys4ddr
-else ifeq ($(TARGET),zybo)
-  PARTNAME := xc7z010clg400-1
-  XDC := ${current_dir}/zybo.xdc
-  DEVICE := xc7z010_test
-  BITSTREAM_DEVICE := zynq7
-  BOARD_BUILDDIR := ${BUILDDIR}/zybo
-  VERILOG:=${current_dir}/counter_zynq.v
-else ifeq ($(TARGET),nexys_video)
-  PARTNAME := xc7a200tsbg484-1
-  XDC := ${current_dir}/nexys_video.xdc
-  DEVICE := xc7a200t_test
-  BOARD_BUILDDIR := ${BUILDDIR}/nexys_video
-else
-  PARTNAME := xc7a35tcpg236-1
-  XDC := ${current_dir}/basys3.xdc
-  BOARD_BUILDDIR := ${BUILDDIR}/basys3
-endif
+export TOP := top
+export SOURCES := ${current_dir}/counter.v
 
-.DELETE_ON_ERROR:
-
-
-all: ${BOARD_BUILDDIR}/${TOP}.bit
-
-${BOARD_BUILDDIR}:
-	mkdir -p ${BOARD_BUILDDIR}
-
-${BOARD_BUILDDIR}/${TOP}.eblif: | ${BOARD_BUILDDIR}
-	cd ${BOARD_BUILDDIR} && symbiflow_synth -t ${TOP} -v ${VERILOG} -d ${BITSTREAM_DEVICE} -p ${PARTNAME} -x ${XDC} 2>&1 > /dev/null
-
-${BOARD_BUILDDIR}/${TOP}.net: ${BOARD_BUILDDIR}/${TOP}.eblif
-	cd ${BOARD_BUILDDIR} && symbiflow_pack -e ${TOP}.eblif -d ${DEVICE} 2>&1 > /dev/null
-
-${BOARD_BUILDDIR}/${TOP}.place: ${BOARD_BUILDDIR}/${TOP}.net
-	cd ${BOARD_BUILDDIR} && symbiflow_place -e ${TOP}.eblif -d ${DEVICE} -n ${TOP}.net -P ${PARTNAME} 2>&1 > /dev/null
-
-${BOARD_BUILDDIR}/${TOP}.route: ${BOARD_BUILDDIR}/${TOP}.place
-	cd ${BOARD_BUILDDIR} && symbiflow_route -e ${TOP}.eblif -d ${DEVICE} 2>&1 > /dev/null
-
-${BOARD_BUILDDIR}/${TOP}.fasm: ${BOARD_BUILDDIR}/${TOP}.route
-	cd ${BOARD_BUILDDIR} && symbiflow_write_fasm -e ${TOP}.eblif -d ${DEVICE}
-
-${BOARD_BUILDDIR}/${TOP}.bit: ${BOARD_BUILDDIR}/${TOP}.fasm
-	cd ${BOARD_BUILDDIR} && symbiflow_write_bitstream -d ${BITSTREAM_DEVICE} -f ${TOP}.fasm -p ${PARTNAME} -b ${TOP}.bit
+all:
+	cd ../../common && $(MAKE)
 
 clean:
-	rm -rf ${BUILDDIR}
+	cd ../../common && $(MAKE) clean    
+

From 5d1de9005598672a0cb16e670c5a3d23789d4325 Mon Sep 17 00:00:00 2001
From: Joshua Fife <jpfife17@gmail.com>
Date: Tue, 10 Aug 2021 17:00:16 -0600
Subject: [PATCH 2/5] Common Makefile v2 and changed all examples

Signed-off-by: Joshua Fife <jpfife17@gmail.com>
---
 common/Makefile               | 53 ++++-------------------------
 xc7/counter_test/Makefile     | 42 ++++++++++++++++++++---
 xc7/linux_litex_demo/Makefile | 42 +++++------------------
 xc7/picosoc_demo/Makefile     | 63 ++++++++++-------------------------
 4 files changed, 71 insertions(+), 129 deletions(-)

diff --git a/common/Makefile b/common/Makefile
index 0565a09..ecc459b 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -1,54 +1,15 @@
 BUILDDIR := ${current_dir}/build
-
-# Set board properties based on TARGET variable
-ifeq ($(TARGET),arty_35)
-  DEVICE := xc7a50t_test
-  BITSTREAM_DEVICE := artix7
-  PARTNAME := xc7a35tcsg324-1
-  CONSTRAINT_PATH := ${current_dir}/arty
-  BOARD_BUILDDIR := ${BUILDDIR}/arty_35
-else ifeq ($(TARGET),arty_100)
-  DEVICE := xc7a100t_test
-  BITSTREAM_DEVICE := artix7
-  PARTNAME := xc7a100tcsg324-1
-  CONSTRAINT_PATH := ${current_dir}/arty
-  BOARD_BUILDDIR := ${BUILDDIR}/arty_100
-else ifeq ($(TARGET),nexys4ddr)
-  DEVICE := xc7a100t_test
-  BITSTREAM_DEVICE := artix7
-  PARTNAME := xc7a100tcsg324-1
-  CONSTRAINT_PATH := ${current_dir}/nexys4ddr
-  BOARD_BUILDDIR := ${BUILDDIR}/nexys4ddr
-else ifeq ($(TARGET),zybo)
-  DEVICE := xc7z010_test
-  BITSTREAM_DEVICE := zynq7
-  PARTNAME := xc7z010clg400-1
-  CONSTRAINT_PATH := ${current_dir}/zybo
-  BOARD_BUILDDIR := ${BUILDDIR}/zybo
-  SOURCES := ${current_dir}/counter_zynq.v
-else ifeq ($(TARGET),nexys_video)
-  DEVICE := xc7a200t_test
-  BITSTREAM_DEVICE := artix7
-  PARTNAME := xc7a200tsbg484-1
-  CONSTRAINT_PATH := ${current_dir}/nexys_video
-  BOARD_BUILDDIR := ${BUILDDIR}/nexys_video
-else
-  DEVICE := xc7a50t_test
-  BITSTREAM_DEVICE := artix7
-  PARTNAME := xc7a35tcpg236-1
-  CONSTRAINT_PATH := ${current_dir}/basys3
-  BOARD_BUILDDIR := ${BUILDDIR}/basys3
-endif
+BOARD_BUILDDIR := ${BUILDDIR}/${TARGET}
 
 # Determine the type of constraint being used
-ifneq ($(wildcard ${CONSTRAINT_PATH}.xdc),)
-  XDC_CMD := -x ${CONSTRAINT_PATH}.xdc
+ifneq (${XDC},)
+  XDC_CMD := -x ${XDC}
 endif
-ifneq ($(wildcard ${CONSTRAINT_PATH}.sdc),)
-  SDC_CMD := -s ${CONSTRAINT_PATH}.sdc
+ifneq (${SDC},)
+  SDC_CMD := -s ${SDC}
 endif
-ifneq ($(wildcard ${CONSTRAINT_PATH}.pcf),)
-  PCF_CMD := -p ${CONSTRAINT_PATH}.pcf
+ifneq (${PCF},)
+  PCF_CMD := -p ${PCF}
 endif
 
 .DELETE_ON_ERROR:
diff --git a/xc7/counter_test/Makefile b/xc7/counter_test/Makefile
index a12a7ba..f6c79aa 100644
--- a/xc7/counter_test/Makefile
+++ b/xc7/counter_test/Makefile
@@ -1,12 +1,44 @@
-export mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST)))
-export current_dir := $(patsubst %/,%,$(dir $(mkfile_path)))
+current_dir := ${CURDIR}
+TOP := top
+SOURCES := ${current_dir}/counter.v
 
-export TOP := top
-export SOURCES := ${current_dir}/counter.v
+ifeq ($(TARGET),arty_35)
+  DEVICE := xc7a50t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a35tcsg324-1
+  XDC := ${current_dir}/arty.xdc
+else ifeq ($(TARGET),arty_100)
+  DEVICE := xc7a100t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a100tcsg324-1
+  XDC := ${current_dir}/arty.xdc
+else ifeq ($(TARGET),nexys4ddr)
+  DEVICE := xc7a100t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a100tcsg324-1
+  XDC := ${current_dir}/nexys4ddr.xdc
+else ifeq ($(TARGET),zybo)
+  DEVICE := xc7z010_test
+  BITSTREAM_DEVICE := zynq7
+  PARTNAME := xc7z010clg400-1
+  XDC := ${current_dir}/zybo.xdc
+  SOURCES:=${current_dir}/counter_zynq.v
+else ifeq ($(TARGET),nexys_video)
+  DEVICE := xc7a200t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a200tsbg484-1
+  XDC := ${current_dir}/nexys_video.xdc
+else
+  DEVICE := xc7a50t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a35tcpg236-1
+  XDC := ${current_dir}/basys3.xdc
+endif
+
+export
 
 all:
 	cd ../../common && $(MAKE)
-
 clean:
 	cd ../../common && $(MAKE) clean    
 
diff --git a/xc7/linux_litex_demo/Makefile b/xc7/linux_litex_demo/Makefile
index 31c50e1..7318bab 100644
--- a/xc7/linux_litex_demo/Makefile
+++ b/xc7/linux_litex_demo/Makefile
@@ -1,53 +1,29 @@
-mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST)))
-current_dir := $(patsubst %/,%,$(dir $(mkfile_path)))
+current_dir := ${CURDIR}
 TOP := top
-VERILOG := ${current_dir}/baselitex_arty.v \
+SOURCES := ${current_dir}/baselitex_arty.v \
            ${current_dir}/VexRiscv_Linux.v
 MEM_INIT := ${current_dir}/mem.init \
             ${current_dir}/mem_1.init \
             ${current_dir}/mem_2.init
-BITSTREAM_DEVICE := artix7
 PCF := ${current_dir}/arty.pcf
 SDC := ${current_dir}/arty.sdc
 XDC := ${current_dir}/arty.xdc
-BUILDDIR := build
+
+
+BITSTREAM_DEVICE := artix7
 
 ifeq ($(TARGET),arty_100)
     PARTNAME := xc7a100tcsg324-1
     DEVICE   := xc7a100t_test
-    BOARD_BUILDDIR := ${BUILDDIR}/arty_100
 else
     PARTNAME := xc7a35tcsg324-1
     DEVICE   := xc7a50t_test
-    BOARD_BUILDDIR := ${BUILDDIR}/arty_35
 endif
 
-.DELETE_ON_ERROR:
+export
 
-
-all: ${BOARD_BUILDDIR}/${TOP}.bit
-
-${BOARD_BUILDDIR}:
-	mkdir -p ${BOARD_BUILDDIR}
-	ln -s ${MEM_INIT} ${BOARD_BUILDDIR}
-
-${BOARD_BUILDDIR}/${TOP}.eblif: | ${BOARD_BUILDDIR}
-	cd ${BOARD_BUILDDIR} && symbiflow_synth -t ${TOP} -v ${VERILOG} -d ${BITSTREAM_DEVICE} -p ${PARTNAME} -x ${XDC} 2>&1 > /dev/null
-
-${BOARD_BUILDDIR}/${TOP}.net: ${BOARD_BUILDDIR}/${TOP}.eblif
-	cd ${BOARD_BUILDDIR} && symbiflow_pack -e ${TOP}.eblif -d ${DEVICE} -s ${SDC} 2>&1 > /dev/null
-
-${BOARD_BUILDDIR}/${TOP}.place: ${BOARD_BUILDDIR}/${TOP}.net
-	cd ${BOARD_BUILDDIR} && symbiflow_place -e ${TOP}.eblif -d ${DEVICE} -p ${PCF} -n ${TOP}.net -P ${PARTNAME} -s ${SDC} 2>&1 > /dev/null
-
-${BOARD_BUILDDIR}/${TOP}.route: ${BOARD_BUILDDIR}/${TOP}.place
-	cd ${BOARD_BUILDDIR} && symbiflow_route -e ${TOP}.eblif -d ${DEVICE} -s ${SDC} 2>&1 > /dev/null
-
-${BOARD_BUILDDIR}/${TOP}.fasm: ${BOARD_BUILDDIR}/${TOP}.route
-	cd ${BOARD_BUILDDIR} && symbiflow_write_fasm -e ${TOP}.eblif -d ${DEVICE}
-
-${BOARD_BUILDDIR}/${TOP}.bit: ${BOARD_BUILDDIR}/${TOP}.fasm
-	cd ${BOARD_BUILDDIR} && symbiflow_write_bitstream -d ${BITSTREAM_DEVICE} -f ${TOP}.fasm -p ${PARTNAME} -b ${TOP}.bit
+all:
+	cd ../../common && $(MAKE)
 
 clean:
-	rm -rf ${BUILDDIR}
+	cd ../../common && $(MAKE) clean    
\ No newline at end of file
diff --git a/xc7/picosoc_demo/Makefile b/xc7/picosoc_demo/Makefile
index cf01292..f6c9404 100644
--- a/xc7/picosoc_demo/Makefile
+++ b/xc7/picosoc_demo/Makefile
@@ -1,66 +1,39 @@
-mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST)))
-current_dir := $(patsubst %/,%,$(dir $(mkfile_path)))
+current_dir := ${CURDIR}
 TOP := top
-VERILOG := ${current_dir}/picosoc_noflash.v \
+SOURCES := ${current_dir}/picosoc_noflash.v \
            ${current_dir}/picorv32.v \
            ${current_dir}/simpleuart.v \
            ${current_dir}/progmem.v
-PARTNAME := xc7a35tcpg236-1
-DEVICE  := xc7a50t_test
-BITSTREAM_DEVICE := artix7
-PCF := ${current_dir}/basys3.pcf
+
 SDC := ${current_dir}/picosoc.sdc
-BUILDDIR := build
+BITSTREAM_DEVICE := artix7
 
 ifeq ($(TARGET),arty_35)
-  VERILOG += ${current_dir}/arty.v
+  DEVICE  := xc7a50t_test
+  SOURCES += ${current_dir}/arty.v
   PARTNAME := xc7a35tcsg324-1
   PCF := ${current_dir}/arty.pcf
-  BOARD_BUILDDIR := ${BUILDDIR}/arty_35
 else ifeq ($(TARGET),arty_100)
-  VERILOG += ${current_dir}/arty.v
-  PARTNAME := xc7a100tcsg324-1
-  PCF:=${current_dir}/arty.pcf
   DEVICE := xc7a100t_test
-  BOARD_BUILDDIR := ${BUILDDIR}/arty_100
+  SOURCES += ${current_dir}/arty.v
+  PARTNAME := xc7a100tcsg324-1
+  PCF := ${current_dir}/arty.pcf
 else ifeq ($(TARGET),nexys4ddr)
-  VERILOG += ${current_dir}/nexys4ddr.v
+  DEVICE := xc7a100t_test  
+  SOURCES += ${current_dir}/nexys4ddr.v
   PARTNAME := xc7a100tcsg324-1
-  PCF:=${current_dir}/nexys4ddr.pcf
-  DEVICE := xc7a100t_test
-  BOARD_BUILDDIR := ${BUILDDIR}/nexys4ddr
+  PCF := ${current_dir}/nexys4ddr.pcf
 else
-  VERILOG += ${current_dir}/basys3.v
+  DEVICE  := xc7a50t_test
+  SOURCES += ${current_dir}/basys3.v
   PARTNAME := xc7a35tcpg236-1
   PCF := ${current_dir}/basys3.pcf
-  BOARD_BUILDDIR := ${BUILDDIR}/basys3
 endif
 
-.DELETE_ON_ERROR:
+export
 
-
-all: ${BOARD_BUILDDIR}/${TOP}.bit
-
-${BOARD_BUILDDIR}:
-	mkdir -p ${BOARD_BUILDDIR}
-
-${BOARD_BUILDDIR}/${TOP}.eblif: | ${BOARD_BUILDDIR}
-	cd ${BOARD_BUILDDIR} && symbiflow_synth -t ${TOP} -v ${VERILOG} -d ${BITSTREAM_DEVICE} -p ${PARTNAME} 2>&1 > /dev/null
-
-${BOARD_BUILDDIR}/${TOP}.net: ${BOARD_BUILDDIR}/${TOP}.eblif
-	cd ${BOARD_BUILDDIR} && symbiflow_pack -e ${TOP}.eblif -d ${DEVICE} -s ${SDC} 2>&1 > /dev/null
-
-${BOARD_BUILDDIR}/${TOP}.place: ${BOARD_BUILDDIR}/${TOP}.net
-	cd ${BOARD_BUILDDIR} && symbiflow_place -e ${TOP}.eblif -d ${DEVICE} -p ${PCF} -n ${TOP}.net -P ${PARTNAME} -s ${SDC} 2>&1 > /dev/null
-
-${BOARD_BUILDDIR}/${TOP}.route: ${BOARD_BUILDDIR}/${TOP}.place
-	cd ${BOARD_BUILDDIR} && symbiflow_route -e ${TOP}.eblif -d ${DEVICE} -s ${SDC} 2>&1 > /dev/null
-
-${BOARD_BUILDDIR}/${TOP}.fasm: ${BOARD_BUILDDIR}/${TOP}.route
-	cd ${BOARD_BUILDDIR} && symbiflow_write_fasm -e ${TOP}.eblif -d ${DEVICE}
-
-${BOARD_BUILDDIR}/${TOP}.bit: ${BOARD_BUILDDIR}/${TOP}.fasm
-	cd ${BOARD_BUILDDIR} && symbiflow_write_bitstream -d ${BITSTREAM_DEVICE} -f ${TOP}.fasm -p ${PARTNAME} -b ${TOP}.bit
+all:
+	cd ../../common && $(MAKE)
 
 clean:
-	rm -rf ${BUILDDIR}
+	cd ../../common && $(MAKE) clean 
\ No newline at end of file

From 2af9d695a74458a210581a223af791d2c58a0974 Mon Sep 17 00:00:00 2001
From: Joshua Fife <jpfife17@gmail.com>
Date: Tue, 10 Aug 2021 17:57:37 -0600
Subject: [PATCH 3/5] Common Makefile v3 and changed all designs

Signed-off-by: Joshua Fife <jpfife17@gmail.com>
---
 common/Makefile               | 29 +++++++++++++++++++++++++++++
 xc7/counter_test/Makefile     | 18 ------------------
 xc7/linux_litex_demo/Makefile | 11 -----------
 xc7/picosoc_demo/Makefile     |  9 ---------
 4 files changed, 29 insertions(+), 38 deletions(-)

diff --git a/common/Makefile b/common/Makefile
index ecc459b..aee7230 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -1,6 +1,35 @@
 BUILDDIR := ${current_dir}/build
 BOARD_BUILDDIR := ${BUILDDIR}/${TARGET}
 
+# Set board properties based on TARGET variable
+ifeq ($(TARGET),arty_35)
+  DEVICE := xc7a50t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a35tcsg324-1
+else ifeq ($(TARGET),arty_100)
+  DEVICE := xc7a100t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a100tcsg324-1
+else ifeq ($(TARGET),nexys4ddr)
+  DEVICE := xc7a100t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a100tcsg324-1
+else ifeq ($(TARGET),zybo)
+  DEVICE := xc7z010_test
+  BITSTREAM_DEVICE := zynq7
+  PARTNAME := xc7z010clg400-1
+else ifeq ($(TARGET),nexys_video)
+  DEVICE := xc7a200t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a200tsbg484-1
+else ifeq ($(TARGET),basys3)
+  DEVICE := xc7a50t_test
+  BITSTREAM_DEVICE := artix7
+  PARTNAME := xc7a35tcpg236-1
+else
+  $(error Unsupported board type)
+endif
+
 # Determine the type of constraint being used
 ifneq (${XDC},)
   XDC_CMD := -x ${XDC}
diff --git a/xc7/counter_test/Makefile b/xc7/counter_test/Makefile
index f6c79aa..7dccb0c 100644
--- a/xc7/counter_test/Makefile
+++ b/xc7/counter_test/Makefile
@@ -3,35 +3,17 @@ TOP := top
 SOURCES := ${current_dir}/counter.v
 
 ifeq ($(TARGET),arty_35)
-  DEVICE := xc7a50t_test
-  BITSTREAM_DEVICE := artix7
-  PARTNAME := xc7a35tcsg324-1
   XDC := ${current_dir}/arty.xdc
 else ifeq ($(TARGET),arty_100)
-  DEVICE := xc7a100t_test
-  BITSTREAM_DEVICE := artix7
-  PARTNAME := xc7a100tcsg324-1
   XDC := ${current_dir}/arty.xdc
 else ifeq ($(TARGET),nexys4ddr)
-  DEVICE := xc7a100t_test
-  BITSTREAM_DEVICE := artix7
-  PARTNAME := xc7a100tcsg324-1
   XDC := ${current_dir}/nexys4ddr.xdc
 else ifeq ($(TARGET),zybo)
-  DEVICE := xc7z010_test
-  BITSTREAM_DEVICE := zynq7
-  PARTNAME := xc7z010clg400-1
   XDC := ${current_dir}/zybo.xdc
   SOURCES:=${current_dir}/counter_zynq.v
 else ifeq ($(TARGET),nexys_video)
-  DEVICE := xc7a200t_test
-  BITSTREAM_DEVICE := artix7
-  PARTNAME := xc7a200tsbg484-1
   XDC := ${current_dir}/nexys_video.xdc
 else
-  DEVICE := xc7a50t_test
-  BITSTREAM_DEVICE := artix7
-  PARTNAME := xc7a35tcpg236-1
   XDC := ${current_dir}/basys3.xdc
 endif
 
diff --git a/xc7/linux_litex_demo/Makefile b/xc7/linux_litex_demo/Makefile
index 7318bab..f4d39ac 100644
--- a/xc7/linux_litex_demo/Makefile
+++ b/xc7/linux_litex_demo/Makefile
@@ -9,17 +9,6 @@ PCF := ${current_dir}/arty.pcf
 SDC := ${current_dir}/arty.sdc
 XDC := ${current_dir}/arty.xdc
 
-
-BITSTREAM_DEVICE := artix7
-
-ifeq ($(TARGET),arty_100)
-    PARTNAME := xc7a100tcsg324-1
-    DEVICE   := xc7a100t_test
-else
-    PARTNAME := xc7a35tcsg324-1
-    DEVICE   := xc7a50t_test
-endif
-
 export
 
 all:
diff --git a/xc7/picosoc_demo/Makefile b/xc7/picosoc_demo/Makefile
index f6c9404..bb7b591 100644
--- a/xc7/picosoc_demo/Makefile
+++ b/xc7/picosoc_demo/Makefile
@@ -6,27 +6,18 @@ SOURCES := ${current_dir}/picosoc_noflash.v \
            ${current_dir}/progmem.v
 
 SDC := ${current_dir}/picosoc.sdc
-BITSTREAM_DEVICE := artix7
 
 ifeq ($(TARGET),arty_35)
-  DEVICE  := xc7a50t_test
   SOURCES += ${current_dir}/arty.v
-  PARTNAME := xc7a35tcsg324-1
   PCF := ${current_dir}/arty.pcf
 else ifeq ($(TARGET),arty_100)
-  DEVICE := xc7a100t_test
   SOURCES += ${current_dir}/arty.v
-  PARTNAME := xc7a100tcsg324-1
   PCF := ${current_dir}/arty.pcf
 else ifeq ($(TARGET),nexys4ddr)
-  DEVICE := xc7a100t_test  
   SOURCES += ${current_dir}/nexys4ddr.v
-  PARTNAME := xc7a100tcsg324-1
   PCF := ${current_dir}/nexys4ddr.pcf
 else
-  DEVICE  := xc7a50t_test
   SOURCES += ${current_dir}/basys3.v
-  PARTNAME := xc7a35tcpg236-1
   PCF := ${current_dir}/basys3.pcf
 endif
 

From 052c10e2f27514250e4e393dcde5b2fdb7d96598 Mon Sep 17 00:00:00 2001
From: Joshua Fife <jpfife17@gmail.com>
Date: Wed, 11 Aug 2021 11:32:59 -0600
Subject: [PATCH 4/5] Changed example makefiles to include common Makefile
 instead of adding additional targets

Signed-off-by: Joshua Fife <jpfife17@gmail.com>
---
 xc7/counter_test/Makefile     | 7 +------
 xc7/linux_litex_demo/Makefile | 8 +-------
 xc7/picosoc_demo/Makefile     | 8 +-------
 3 files changed, 3 insertions(+), 20 deletions(-)

diff --git a/xc7/counter_test/Makefile b/xc7/counter_test/Makefile
index 7dccb0c..df92f1f 100644
--- a/xc7/counter_test/Makefile
+++ b/xc7/counter_test/Makefile
@@ -17,10 +17,5 @@ else
   XDC := ${current_dir}/basys3.xdc
 endif
 
-export
-
-all:
-	cd ../../common && $(MAKE)
-clean:
-	cd ../../common && $(MAKE) clean    
+include ${current_dir}/../../common/Makefile
 
diff --git a/xc7/linux_litex_demo/Makefile b/xc7/linux_litex_demo/Makefile
index f4d39ac..300d9d2 100644
--- a/xc7/linux_litex_demo/Makefile
+++ b/xc7/linux_litex_demo/Makefile
@@ -9,10 +9,4 @@ PCF := ${current_dir}/arty.pcf
 SDC := ${current_dir}/arty.sdc
 XDC := ${current_dir}/arty.xdc
 
-export
-
-all:
-	cd ../../common && $(MAKE)
-
-clean:
-	cd ../../common && $(MAKE) clean    
\ No newline at end of file
+include ${current_dir}/../../common/Makefile 
\ No newline at end of file
diff --git a/xc7/picosoc_demo/Makefile b/xc7/picosoc_demo/Makefile
index bb7b591..c39fdf7 100644
--- a/xc7/picosoc_demo/Makefile
+++ b/xc7/picosoc_demo/Makefile
@@ -21,10 +21,4 @@ else
   PCF := ${current_dir}/basys3.pcf
 endif
 
-export
-
-all:
-	cd ../../common && $(MAKE)
-
-clean:
-	cd ../../common && $(MAKE) clean 
\ No newline at end of file
+include ${current_dir}/../../common/Makefile
\ No newline at end of file

From d4742b8c7f0a1589b00e141bfa389f57ec6cc04c Mon Sep 17 00:00:00 2001
From: Joshua Fife <jpfife17@gmail.com>
Date: Thu, 12 Aug 2021 12:13:06 -0600
Subject: [PATCH 5/5] Removed MEM_INIT symilinks

Signed-off-by: Joshua Fife <jpfife17@gmail.com>
---
 common/Makefile               | 5 -----
 xc7/linux_litex_demo/Makefile | 4 +---
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/common/Makefile b/common/Makefile
index aee7230..9f519ec 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -48,11 +48,6 @@ all: ${BOARD_BUILDDIR}/${TOP}.bit
 
 ${BOARD_BUILDDIR}:
 	mkdir -p ${BOARD_BUILDDIR}
-  #Check if design includes initialization files for memory
-  ifneq (${MEM_INIT},)
-    #if there are memory initialization files link them to the build/board_type directory
-	  ln -s ${MEM_INIT} ${BOARD_BUILDDIR}
-  endif
 
 ${BOARD_BUILDDIR}/${TOP}.eblif: | ${BOARD_BUILDDIR}
 	cd ${BOARD_BUILDDIR} && symbiflow_synth -t ${TOP} -v ${SOURCES} -d ${BITSTREAM_DEVICE} -p ${PARTNAME} ${XDC_CMD} 2>&1 > /dev/null
diff --git a/xc7/linux_litex_demo/Makefile b/xc7/linux_litex_demo/Makefile
index 300d9d2..81f81b5 100644
--- a/xc7/linux_litex_demo/Makefile
+++ b/xc7/linux_litex_demo/Makefile
@@ -2,9 +2,7 @@ current_dir := ${CURDIR}
 TOP := top
 SOURCES := ${current_dir}/baselitex_arty.v \
            ${current_dir}/VexRiscv_Linux.v
-MEM_INIT := ${current_dir}/mem.init \
-            ${current_dir}/mem_1.init \
-            ${current_dir}/mem_2.init
+
 PCF := ${current_dir}/arty.pcf
 SDC := ${current_dir}/arty.sdc
 XDC := ${current_dir}/arty.xdc