diff --git a/verilog/dv/Makefile b/verilog/dv/Makefile
new file mode 100644
index 0000000..d87238f
--- /dev/null
+++ b/verilog/dv/Makefile
@@ -0,0 +1,39 @@
+# 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
+
+# ---- Test patterns for project striVe ----
+
+.SUFFIXES:
+.SILENT: clean all
+
+PATTERNS = io_ports la_test1 la_test2 wb_port mprj_stimulus
+
+all:  ${PATTERNS}
+	for i in ${PATTERNS}; do \
+		( cd $$i && make -f Makefile $${i}.vcd &> verify.log && grep Monitor verify.log) ; \
+	done
+
+DV_PATTERNS = $(foreach dv, $(PATTERNS), verify-$(dv))
+$(DV_PATTERNS): verify-% : 
+	cd $* && make
+
+clean:  ${PATTERNS}
+	for i in ${PATTERNS}; do \
+		( cd $$i && make clean ) ; \
+	done
+	rm -rf *.log
+	
+.PHONY: clean all
diff --git a/verilog/dv/README.md b/verilog/dv/README.md
new file mode 100644
index 0000000..1a834f7
--- /dev/null
+++ b/verilog/dv/README.md
@@ -0,0 +1,236 @@
+<!---
+# 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
+-->
+
+# Simulation Environment Setup
+
+There are two options for setting up the simulation environment: 
+
+* Pulling a pre-built docker image 
+* Installing the dependecies locally
+
+## 1. Docker
+
+There is an available docker setup with the needed tools at [efabless/dockerized-verification-setup](https://github.com/efabless/dockerized-verification-setup) 
+
+Run the following to pull the image: 
+
+```
+docker pull efabless/dv_setup:latest
+```
+
+## 2. Local Installion (Linux)
+
+You will need to fullfil these dependecies: 
+
+* Icarus Verilog (10.2+)
+* RV32I Toolchain
+
+Using apt, you can install Icarus Verilog:
+
+```bash
+sudo apt-get install iverilog
+```
+
+Next, you will need to build the RV32I toolchain. Firstly, export the installation path for the RV32I toolchain, 
+
+```bash
+export GCC_PATH=<gcc-installation-path>
+```
+
+Then, run the following: 
+
+```bash
+# packages needed:
+sudo apt-get install autoconf automake autotools-dev curl libmpc-dev \
+    libmpfr-dev libgmp-dev gawk build-essential bison flex texinfo \
+    gperf libtool patchutils bc zlib1g-dev git libexpat1-dev
+
+sudo mkdir $GCC_PATH
+sudo chown $USER $GCC_PATH
+
+git clone https://github.com/riscv/riscv-gnu-toolchain riscv-gnu-toolchain-rv32i
+cd riscv-gnu-toolchain-rv32i
+git checkout 411d134
+git submodule update --init --recursive
+
+mkdir build; cd build
+../configure --with-arch=rv32i --prefix=$GCC_PATH
+make -j$(nproc)
+```
+
+# Running Simulation
+
+## Docker
+
+First, you will need to export a number of environment variables: 
+
+```bash
+export PDK_PATH=<pdk-location/sky130A>
+export CARAVEL_ROOT=<caravel_root>
+export UPRJ_ROOT=<user_project_root>
+```
+
+Then, run the following command to start the docker container :
+
+```
+docker run -it -v $CARAVEL_ROOT:$CARAVEL_ROOT -v $PDK_PATH:$PDK_PATH -v $UPRJ_ROOT:$UPRJ_ROOT -e CARAVEL_ROOT=$CARAVEL_ROOT -e PDK_PATH=$PDK_PATH -e UPRJ_ROOT=$UPRJ_ROOT -u $(id -u $USER):$(id -g $USER) efabless/dv_setup:latest
+```
+
+Then, navigate to the directory where the DV tests reside : 
+
+```bash
+cd $UPRJ_ROOT/verilog/dv/
+```
+
+Then, follow the instructions at [Both](#both) to run RTL/GL simulation.
+
+## Local
+
+You will need to export these environment variables: 
+
+```bash
+export GCC_PATH=<gcc-installation-path>
+export PDK_PATH=<pdk-location/sky130A>
+```
+
+Then, follow the instruction at [Both](#both) to run RTL/GL simulation.
+
+## Both
+
+To run RTL simulation for one of the DV tests, 
+
+```bash
+cd <dv-test>
+make
+```
+
+To run gate level simulation for one of the DV tests, 
+
+```bash
+cd <dv-test>
+SIM=GL make
+```
+
+# User Project Example DV
+
+The directory includes four tests for the counter user-project example: 
+
+### IO Ports Test 
+
+* This test is meant to verify that we can configure the pads for the user project area. The firmware configures the lower 8 IO pads in the user space as outputs:
+
+	```c
+	reg_mprj_io_0 =  GPIO_MODE_USER_STD_OUTPUT;
+	reg_mprj_io_1 =  GPIO_MODE_USER_STD_OUTPUT;
+	.....
+	reg_mprj_io_7 =  GPIO_MODE_USER_STD_OUTPUT;
+	```
+
+* Then, the firmware applies the pad configuration by enabling the serial transfer on the shift register responsible for configuring the pads and waits until the transfer is done. 
+	```c
+	reg_mprj_xfer = 1;
+	while (reg_mprj_xfer == 1);
+	```
+
+* The testbench success criteria is that we can observe the counter value on the lower 8 I/O pads. This criteria is checked by the testbench through observing the values on the I/O pads as follows: 
+
+	```verilog
+	wait(mprj_io_0 == 8'h01);
+	wait(mprj_io_0 == 8'h02);
+	wait(mprj_io_0 == 8'h03);
+	....
+	wait(mprj_io_0 == 8'hFF);
+	```
+
+* If the testbench fails, it will print a timeout message to the terminal. 
+
+### Logic Analyzer Test 1
+ 
+* This test is meant to verify that we can use the logic analyzer to monitor and write signals in the user project from the management SoC. Firstly, the firmware configures the upper 16 of the first 32 GPIO pads as outputs from the managent SoC, applies the configuration by initiating the serial transfer on the shift register, and writes a value on the pads to indicate the end of pad configuration and the start of the test. 
+
+	```c
+	reg_mprj_io_31 = GPIO_MODE_MGMT_STD_OUTPUT;
+	reg_mprj_io_30 = GPIO_MODE_MGMT_STD_OUTPUT;
+	.....
+	reg_mprj_io_16 = GPIO_MODE_MGMT_STD_OUTPUT;
+
+	reg_mprj_xfer = 1;
+	while (reg_mprj_xfer == 1);
+
+	// Flag start of the test 
+	reg_mprj_datal = 0xAB400000;
+	```
+	
+	This is done to flag the start/success/end of the simulation by writing a certain value to the I/Os which is then checked by the testbench to know whether the test started/ended/succeeded. For example, the testbench checks on the value of the upper 16 of 32 I/Os, if it is equal to `16'hAB40`, then we know that the test started.  
+
+	```verilog
+	wait(checkbits == 16'hAB40);
+	$display("LA Test 1 started");
+	```
+	
+* Then, the firmware configures the logic analyzer (LA) probes `[31:0]` as inputs to the management SoC to monitor the counter value, and configure the logic analyzer probes `[63:32]` as outputs from the management SoC (inputs to the user_proj_example) to set the counter initial value. This is done by writing to the LA probes enable registers.   Note that the output enable is active low, while the input enable is active high.  Every channel can be configured for input, output, or both independently.
+
+ 
+	```c
+	reg_la0_oenb = reg_la0_iena = 0xFFFFFFFF;    // [31:0] inputs to mgmt_soc
+	reg_la1_oenb = reg_la1_iena = 0x00000000;    // [63:32] outputs from mgmt_soc
+	```
+
+* Then, the firmware writes an initial value to the counter through the LA1 data register. Afte writing the counter value, the LA probes are disabled to prevent the counter write signal from being always set to one. 
+
+	```c
+	reg_la1_data = 0x00000000;     // Write zero to count register
+	reg_la1_oenb  = reg_la1_iena = 0xFFFFFFFF;     // Disable probes
+	```
+
+* The firmware then waits until the count value exceeds 500 and flags the success of the test by writing `0xAB41` to pads 16 to 31.  The firmware reads the count value through the logic analyzer probes `[31:0]` 
+
+	```c
+	if (reg_la0_data > 0x1F4) {	     // Read current count value through LA
+		reg_mprj_datal = 0xAB410000; // Flag success of the test
+		break;
+	}
+	```
+  
+### Logic Analyzer Test 2
+ 
+* This test is meant to verify that we can drive the clock and reset signals for the user project example through the logic analyzer. In the [user_proj_example](verilog/rtl/user_proj_example.v) RTL, the clock can either be supplied from the `wb_clk_i` or from the logic analyzer through bit `[64]`. Similarly, the reset signal can be supplied from the `wb_rst_i` or through `LA[65]`.  The firmware configures the clk and reset LA probes as outputs from the management SoC by writing to the LA2 enable register. 
+
+	```c
+	reg_la2_oenb  = reg_la2_iena = 0xFFFFFFFC; 	// Configure LA[64] LA[65] as outputs from the cpu
+	```
+
+* Then, the firmware supplies both clock reset signals through LA2 data register. First, both are set to one. Then, reset is driven to zero and the clock is toggled for 6 clock cycles. 
+
+	```c
+	reg_la2_data = 0x00000003;	// Write one to LA[64] and LA[65]
+	for (i=0; i<11; i=i+1) {   	// Toggle clk & de-assert reset
+		clk = !clk;               	
+		reg_la2_data = 0x00000000 | clk;
+	}
+	```
+* The testbench success criteria is that the firmware reads a count value of five through the LA probes. 
+	```c
+	if (reg_la0_data == 0x05) {
+		reg_mprj_datal = 0xAB610000;   // FLag success of the test
+	}
+	```
+	
+### Wishbone Test
+
+* This test is meant to verify that we can read and write to the count register through the wishbone port. The firmware writes a value of `0x2710` to the count register, then reads back the count value after some time. The read and write transactions happen through the management SoC wishbone bus and are initiated by either writing or reading from the user project address on the wishbone bus. 
diff --git a/verilog/dv/mprj_stimulus/Makefile b/verilog/dv/mprj_stimulus/Makefile
new file mode 100644
index 0000000..3a73b99
--- /dev/null
+++ b/verilog/dv/mprj_stimulus/Makefile
@@ -0,0 +1,96 @@
+# 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
+
+## PDK 
+PDK_PATH = $(PDK_ROOT)/sky130A
+
+## Caravel Pointers
+CARAVEL_ROOT ?= ../../../caravel
+CARAVEL_PATH ?= $(CARAVEL_ROOT)
+CARAVEL_FIRMWARE_PATH = $(CARAVEL_PATH)/verilog/dv/caravel
+CARAVEL_VERILOG_PATH  = $(CARAVEL_PATH)/verilog
+CARAVEL_RTL_PATH = $(CARAVEL_VERILOG_PATH)/rtl
+CARAVEL_BEHAVIOURAL_MODELS = $(CARAVEL_VERILOG_PATH)/dv/caravel
+
+## User Project Pointers
+UPRJ_VERILOG_PATH ?= ../../../verilog
+UPRJ_RTL_PATH = $(UPRJ_VERILOG_PATH)/rtl
+UPRJ_BEHAVIOURAL_MODELS = ../
+
+## RISCV GCC 
+GCC_PATH?=/ef/apps/bin
+GCC_PREFIX?=riscv32-unknown-elf
+
+## Simulation mode: RTL/GL
+SIM_DEFINES = -DFUNCTIONAL -DSIM
+SIM?=RTL
+
+.SUFFIXES:
+
+PATTERN = mprj_stimulus
+
+all:  ${PATTERN:=.vcd}
+
+hex:  ${PATTERN:=.hex}
+
+%.vvp: %_tb.v %.hex
+ifeq ($(SIM),RTL)
+	iverilog $(SIM_DEFINES) -I $(PDK_PATH) \
+	-I $(CARAVEL_BEHAVIOURAL_MODELS) -I $(CARAVEL_RTL_PATH) \
+	-I $(UPRJ_BEHAVIOURAL_MODELS)    -I $(UPRJ_RTL_PATH) \
+	$< -o $@ 
+else  
+	iverilog $(SIM_DEFINES) -DGL -I $(PDK_PATH) \
+	-I $(CARAVEL_BEHAVIOURAL_MODELS) -I $(CARAVEL_RTL_PATH) -I $(CARAVEL_VERILOG_PATH) \
+	-I $(UPRJ_BEHAVIOURAL_MODELS) -I$(UPRJ_RTL_PATH)   -I $(UPRJ_VERILOG_PATH) \
+	$< -o $@ 
+endif
+
+%.vcd: %.vvp
+	vvp $<
+
+%.elf: %.c $(CARAVEL_FIRMWARE_PATH)/sections.lds $(CARAVEL_FIRMWARE_PATH)/start.s check-env
+	${GCC_PATH}/${GCC_PREFIX}-gcc -I $(CARAVEL_PATH) -march=rv32imc -mabi=ilp32 -Wl,-Bstatic,-T,$(CARAVEL_FIRMWARE_PATH)/sections.lds,--strip-debug -ffreestanding -nostdlib -o $@ $(CARAVEL_FIRMWARE_PATH)/start.s $<
+
+%.hex: %.elf
+	${GCC_PATH}/${GCC_PREFIX}-objcopy -O verilog $< $@ 
+	# to fix flash base address
+	sed -i 's/@10000000/@00000000/g' $@
+
+%.bin: %.elf
+	${GCC_PATH}/${GCC_PREFIX}-objcopy -O binary $< /dev/stdout | tail -c +1048577 > $@
+
+check-env:
+ifndef PDK_ROOT
+	$(error PDK_ROOT is undefined, please export it before running make)
+endif
+ifeq (,$(wildcard $(PDK_ROOT)/sky130A))
+	$(error $(PDK_ROOT)/sky130A not found, please install pdk before running make)
+endif
+ifeq (,$(wildcard $(GCC_PATH)/$(GCC_PREFIX)-gcc ))
+	$(error $(GCC_PATH)/$(GCC_PREFIX)-gcc is not found, please export GCC_PATH and GCC_PREFIX before running make)
+endif
+# check for efabless style installation
+ifeq (,$(wildcard $(PDK_ROOT)/sky130A/libs.ref/*/verilog))
+SIM_DEFINES := ${SIM_DEFINES} -DEF_STYLE
+endif
+
+# ---- Clean ----
+
+clean:
+	rm -f *.elf *.hex *.bin *.vvp *.vcd *.log
+
+.PHONY: clean hex all
diff --git a/verilog/dv/mprj_stimulus/mprj_stimulus.c b/verilog/dv/mprj_stimulus/mprj_stimulus.c
new file mode 100644
index 0000000..e4d0a2d
--- /dev/null
+++ b/verilog/dv/mprj_stimulus/mprj_stimulus.c
@@ -0,0 +1,134 @@
+/*
+ * 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
+ */
+
+// This include is relative to $CARAVEL_PATH (see Makefile)
+#include "verilog/dv/caravel/defs.h"
+
+// --------------------------------------------------------
+
+void main()
+{
+    // The upper GPIO pins are configured to be output
+    // and accessble to the management SoC.
+    // Used to flag the start/end of a test
+    // The lower GPIO pins are configured to be output
+    // and accessible to the user project.  They show
+    // the project count value, although this test is
+    // designed to read the project count through the
+    // logic analyzer probes.
+    // I/O 6 is configured for the UART Tx line
+    uint32_t testval;
+
+    reg_spimaster_config = 0xa002;	// Enable, prescaler = 2
+
+    reg_mprj_datal = 0x00000000;
+    reg_mprj_datah = 0x00000000;
+
+    reg_mprj_io_37 = GPIO_MODE_MGMT_STD_OUTPUT;;
+    reg_mprj_io_36 = GPIO_MODE_MGMT_STD_OUTPUT;;
+    reg_mprj_io_35 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+    reg_mprj_io_34 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+    reg_mprj_io_33 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+    reg_mprj_io_32 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+
+    reg_mprj_io_31 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_30 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_29 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_28 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_27 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_26 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_25 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_24 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_23 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_22 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_21 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_20 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_19 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_18 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_17 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_16 = GPIO_MODE_MGMT_STD_OUTPUT;
+
+    reg_mprj_io_15 = GPIO_MODE_USER_STD_OUT_MONITORED;
+    reg_mprj_io_14 = GPIO_MODE_USER_STD_OUT_MONITORED;
+    reg_mprj_io_13 = GPIO_MODE_USER_STD_OUT_MONITORED;
+    reg_mprj_io_12 = GPIO_MODE_USER_STD_OUT_MONITORED;
+    reg_mprj_io_11 = GPIO_MODE_USER_STD_OUT_MONITORED;
+    reg_mprj_io_10 = GPIO_MODE_USER_STD_OUT_MONITORED;
+    reg_mprj_io_9  = GPIO_MODE_USER_STD_OUT_MONITORED;
+    reg_mprj_io_8  = GPIO_MODE_USER_STD_OUT_MONITORED;
+    reg_mprj_io_7  = GPIO_MODE_USER_STD_OUT_MONITORED;
+    reg_mprj_io_5  = GPIO_MODE_USER_STD_OUTPUT;
+    reg_mprj_io_4  = GPIO_MODE_USER_STD_OUTPUT;
+    reg_mprj_io_3  = GPIO_MODE_USER_STD_OUTPUT;
+    reg_mprj_io_2  = GPIO_MODE_USER_STD_OUTPUT;
+    reg_mprj_io_1  = GPIO_MODE_USER_STD_OUTPUT;
+    reg_mprj_io_0  = GPIO_MODE_USER_STD_OUTPUT;
+
+    reg_mprj_io_6  = GPIO_MODE_MGMT_STD_OUTPUT;
+
+    // Set UART clock to 64 kbaud (enable before I/O configuration)
+    reg_uart_clkdiv = 625;
+    reg_uart_enable = 1;
+
+    /* Apply configuration */
+    reg_mprj_xfer = 1;
+    while (reg_mprj_xfer == 1);
+
+    /* TEST:  Recast channels 35 to 32 to allow input to user project	*/
+    /* This is done locally only:  Do not run reg_mprj_xfer!		*/
+    reg_mprj_io_35 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_34 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_33 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_32 = GPIO_MODE_MGMT_STD_OUTPUT;
+
+    // Configure LA probes [31:0], [127:64] as inputs to the cpu
+    // Configure LA probes [63:32] as outputs from the cpu
+    reg_la0_oenb = reg_la0_iena = 0xFFFFFFFF;    // [31:0]
+    reg_la1_oenb = reg_la1_iena = 0x00000000;    // [63:32]
+    reg_la2_oenb = reg_la2_iena = 0xFFFFFFFF;    // [95:64]
+    reg_la3_oenb = reg_la3_iena = 0xFFFFFFFF;    // [127:96]
+
+    // Flag start of the test
+    reg_mprj_datal = 0xAB400000;
+
+    // Set Counter value to zero through LA probes [63:32]
+    reg_la1_data = 0x00000000;
+
+    // Configure LA probes from [63:32] as inputs to disable counter write
+    reg_la1_oenb = reg_la1_iena = 0xFFFFFFFF;
+
+    reg_mprj_datal = 0xAB410000;
+    reg_mprj_datah = 0x00000000;
+
+    // Test ability to force data on channel 37
+    // NOTE:  Only the low 6 bits of reg_mprj_datah are meaningful
+    reg_mprj_datah = 0xffffffca;
+    reg_mprj_datah = 0x00000000;
+    reg_mprj_datah = 0x0f0f0fc5;
+    reg_mprj_datah = 0x00000000;
+
+    // Test ability to read back data generated by the user project
+    // on the "monitored" outputs.  Read from the lower 16 bits and
+    // copy the value to the upper 16 bits.
+
+    testval = reg_mprj_datal;
+    reg_mprj_datal = ((testval & 0xff8) << 9) & 0xffff0000;
+
+    // Flag end of the test
+    reg_mprj_datal = 0xAB510000;
+}
+
diff --git a/verilog/dv/mprj_stimulus/mprj_stimulus_tb.v b/verilog/dv/mprj_stimulus/mprj_stimulus_tb.v
new file mode 100644
index 0000000..1409015
--- /dev/null
+++ b/verilog/dv/mprj_stimulus/mprj_stimulus_tb.v
@@ -0,0 +1,157 @@
+// 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
+
+`default_nettype wire
+
+`timescale 1 ns / 1 ps
+
+`include "uprj_netlists.v"
+`include "caravel_netlists.v"
+`include "spiflash.v"
+`include "tbuart.v"
+
+module mprj_stimulus_tb;
+    // Signals declaration
+    reg clock;
+    reg RSTB;
+    reg CSB;
+    reg power1, power2;
+    reg power3, power4;
+
+    wire HIGH;
+    wire LOW;
+    wire TRI;
+    assign HIGH = 1'b1;
+    assign LOW = 1'b0;
+    assign TRI = 1'bz;
+
+    wire gpio;
+    wire uart_tx;
+    wire [37:0] mprj_io;
+    wire [15:0] checkbits;
+    wire [3:0] status;
+
+    // Signals Assignment
+    assign checkbits  = mprj_io[31:16];
+    assign status = mprj_io[35:32];
+    assign uart_tx = mprj_io[6];
+    assign mprj_io[3] = (CSB == 1'b1) ? 1'b1 : 1'bz;
+
+    always #12.5 clock <= (clock === 1'b0);
+
+    initial begin
+        clock = 0;
+    end
+
+    initial begin
+        $dumpfile("mprj_stimulus.vcd");
+        $dumpvars(0, mprj_stimulus_tb);
+
+        // Repeat cycles of 1000 clock edges as needed to complete testbench
+        repeat (150) begin
+            repeat (1000) @(posedge clock);
+        end
+        $display("%c[1;31m",27);
+        $display ("Monitor: Timeout, Test Project IO Stimulus (RTL) Failed");
+        $display("%c[0m",27);
+        $finish;
+    end
+
+    initial begin
+        wait(checkbits == 16'hAB40);
+        $display("Monitor: mprj_stimulus test started");
+        wait(status == 4'ha);
+        wait(status == 4'h5);
+	// Value 0009 reflects copying user-controlled outputs to memory and back
+	// to management-controlled outputs.
+        wait(checkbits == 16'h0009);
+        wait(checkbits == 16'hAB51);
+        $display("Monitor: mprj_stimulus test Passed");
+        #10000;
+        $finish;
+    end
+
+   // Reset Operation
+    initial begin
+        RSTB <= 1'b0;
+        CSB  <= 1'b1;       // Force CSB high
+        #2000;
+        RSTB <= 1'b1;       // Release reset
+        #170000;
+        CSB = 1'b0;         // CSB can be released
+    end
+
+    initial begin		// Power-up sequence
+        power1 <= 1'b0;
+        power2 <= 1'b0;
+        #200;
+        power1 <= 1'b1;
+        #200;
+        power2 <= 1'b1;
+    end
+
+    wire flash_csb;
+    wire flash_clk;
+    wire flash_io0;
+    wire flash_io1;
+
+    wire VDD3V3 = power1;
+    wire VDD1V8 = power2;
+    wire VSS = 1'b0;
+
+    caravel uut (
+        .vddio	  (VDD3V3),
+        .vssio	  (VSS),
+        .vdda	  (VDD3V3),
+        .vssa	  (VSS),
+        .vccd	  (VDD1V8),
+        .vssd	  (VSS),
+        .vdda1    (VDD3V3),
+        .vdda2    (VDD3V3),
+        .vssa1	  (VSS),
+        .vssa2	  (VSS),
+        .vccd1	  (VDD1V8),
+        .vccd2	  (VDD1V8),
+        .vssd1	  (VSS),
+        .vssd2	  (VSS),
+        .clock	  (clock),
+        .gpio     (gpio),
+        .mprj_io  (mprj_io),
+        .flash_csb(flash_csb),
+        .flash_clk(flash_clk),
+        .flash_io0(flash_io0),
+        .flash_io1(flash_io1),
+        .resetb	  (RSTB)
+    );
+
+
+    spiflash #(
+        .FILENAME("mprj_stimulus.hex")
+    ) spiflash (
+        .csb(flash_csb),
+        .clk(flash_clk),
+        .io0(flash_io0),
+        .io1(flash_io1),
+        .io2(),         // not used
+        .io3()          // not used
+    );
+
+    // Testbench UART
+    tbuart tbuart (
+        .ser_rx(uart_tx)
+    );
+
+endmodule
+`default_nettype wire
diff --git a/verilog/dv/wb_port/Makefile b/verilog/dv/wb_port/Makefile
new file mode 100644
index 0000000..1c784c6
--- /dev/null
+++ b/verilog/dv/wb_port/Makefile
@@ -0,0 +1,96 @@
+# 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
+
+## PDK 
+PDK_PATH = $(PDK_ROOT)/sky130A
+
+## Caravel Pointers
+CARAVEL_ROOT ?= ../../../caravel
+CARAVEL_PATH ?= $(CARAVEL_ROOT)
+CARAVEL_FIRMWARE_PATH = $(CARAVEL_PATH)/verilog/dv/caravel
+CARAVEL_VERILOG_PATH  = $(CARAVEL_PATH)/verilog
+CARAVEL_RTL_PATH = $(CARAVEL_VERILOG_PATH)/rtl
+CARAVEL_BEHAVIOURAL_MODELS = $(CARAVEL_VERILOG_PATH)/dv/caravel
+
+## User Project Pointers
+UPRJ_VERILOG_PATH ?= ../../../verilog
+UPRJ_RTL_PATH = $(UPRJ_VERILOG_PATH)/rtl
+UPRJ_BEHAVIOURAL_MODELS = ../
+
+## RISCV GCC 
+GCC_PATH?=/ef/apps/bin
+GCC_PREFIX?=riscv32-unknown-elf
+
+## Simulation mode: RTL/GL
+SIM_DEFINES = -DFUNCTIONAL -DSIM
+SIM?=RTL
+
+.SUFFIXES:
+
+PATTERN = wb_port
+
+all:  ${PATTERN:=.vcd}
+
+hex:  ${PATTERN:=.hex}
+
+%.vvp: %_tb.v %.hex
+ifeq ($(SIM),RTL)
+	iverilog $(SIM_DEFINES) -I $(PDK_PATH) \
+	-I $(CARAVEL_BEHAVIOURAL_MODELS) -I $(CARAVEL_RTL_PATH) \
+	-I $(UPRJ_BEHAVIOURAL_MODELS)    -I $(UPRJ_RTL_PATH) \
+	$< -o $@ 
+else  
+	iverilog $(SIM_DEFINES) -DGL -I $(PDK_PATH) \
+	-I $(CARAVEL_BEHAVIOURAL_MODELS) -I $(CARAVEL_RTL_PATH) -I $(CARAVEL_VERILOG_PATH) \
+	-I $(UPRJ_BEHAVIOURAL_MODELS) -I$(UPRJ_RTL_PATH)   -I $(UPRJ_VERILOG_PATH) \
+	$< -o $@ 
+endif
+
+%.vcd: %.vvp
+	vvp $<
+
+%.elf: %.c $(CARAVEL_FIRMWARE_PATH)/sections.lds $(CARAVEL_FIRMWARE_PATH)/start.s check-env
+	${GCC_PATH}/${GCC_PREFIX}-gcc -I $(CARAVEL_PATH) -march=rv32imc -mabi=ilp32 -Wl,-Bstatic,-T,$(CARAVEL_FIRMWARE_PATH)/sections.lds,--strip-debug -ffreestanding -nostdlib -o $@ $(CARAVEL_FIRMWARE_PATH)/start.s $<
+
+%.hex: %.elf
+	${GCC_PATH}/${GCC_PREFIX}-objcopy -O verilog $< $@ 
+	# to fix flash base address
+	sed -i 's/@10000000/@00000000/g' $@
+
+%.bin: %.elf
+	${GCC_PATH}/${GCC_PREFIX}-objcopy -O binary $< /dev/stdout | tail -c +1048577 > $@
+
+check-env:
+ifndef PDK_ROOT
+	$(error PDK_ROOT is undefined, please export it before running make)
+endif
+ifeq (,$(wildcard $(PDK_ROOT)/sky130A))
+	$(error $(PDK_ROOT)/sky130A not found, please install pdk before running make)
+endif
+ifeq (,$(wildcard $(GCC_PATH)/$(GCC_PREFIX)-gcc ))
+	$(error $(GCC_PATH)/$(GCC_PREFIX)-gcc is not found, please export GCC_PATH and GCC_PREFIX before running make)
+endif
+# check for efabless style installation
+ifeq (,$(wildcard $(PDK_ROOT)/sky130A/libs.ref/*/verilog))
+SIM_DEFINES := ${SIM_DEFINES} -DEF_STYLE
+endif
+
+# ---- Clean ----
+
+clean:
+	rm -f *.elf *.hex *.bin *.vvp *.vcd *.log
+
+.PHONY: clean hex all
diff --git a/verilog/dv/wb_port/wb_port.c b/verilog/dv/wb_port/wb_port.c
new file mode 100644
index 0000000..425c115
--- /dev/null
+++ b/verilog/dv/wb_port/wb_port.c
@@ -0,0 +1,89 @@
+/*
+ * 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
+ */
+
+// This include is relative to $CARAVEL_PATH (see Makefile)
+#include "verilog/dv/caravel/defs.h"
+#include "verilog/dv/caravel/stub.c"
+
+/*
+	Wishbone Test:
+		- Configures MPRJ lower 8-IO pins as outputs
+		- Checks counter value through the wishbone port
+*/
+int i = 0; 
+int clk = 0;
+
+void main()
+{
+
+	/* 
+	IO Control Registers
+	| DM     | VTRIP | SLOW  | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+	| 3-bits | 1-bit | 1-bit | 1-bit  | 1-bit  | 1-bit | 1-bit   | 1-bit   | 1-bit | 1-bit | 1-bit   |
+	Output: 0000_0110_0000_1110  (0x1808) = GPIO_MODE_USER_STD_OUTPUT
+	| DM     | VTRIP | SLOW  | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+	| 110    | 0     | 0     | 0      | 0      | 0     | 0       | 1       | 0     | 0     | 0       |
+	
+	 
+	Input: 0000_0001_0000_1111 (0x0402) = GPIO_MODE_USER_STD_INPUT_NOPULL
+	| DM     | VTRIP | SLOW  | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+	| 001    | 0     | 0     | 0      | 0      | 0     | 0       | 0       | 0     | 1     | 0       |
+	*/
+
+	/* Set up the housekeeping SPI to be connected internally so	*/
+	/* that external pin changes don't affect it.			*/
+
+	reg_spimaster_config = 0xa002;	// Enable, prescaler = 2,
+                                        // connect to housekeeping SPI
+
+	// Connect the housekeeping SPI to the SPI master
+	// so that the CSB line is not left floating.  This allows
+	// all of the GPIO pins to be used for user functions.
+
+    reg_mprj_io_31 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_30 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_29 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_28 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_27 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_26 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_25 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_24 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_23 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_22 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_21 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_20 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_19 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_18 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_17 = GPIO_MODE_MGMT_STD_OUTPUT;
+    reg_mprj_io_16 = GPIO_MODE_MGMT_STD_OUTPUT;
+
+     /* Apply configuration */
+    reg_mprj_xfer = 1;
+    while (reg_mprj_xfer == 1);
+
+	reg_la2_oenb = reg_la2_iena = 0xFFFFFFFF;    // [95:64]
+
+    // Flag start of the test
+	reg_mprj_datal = 0xAB600000;
+
+    reg_mprj_slave = 0x00002710;
+    if (reg_mprj_slave == 0x2752) {
+        reg_mprj_datal = 0xAB610000;
+    } else {
+        reg_mprj_datal = 0xAB600000;
+    }
+}
diff --git a/verilog/dv/wb_port/wb_port_tb.v b/verilog/dv/wb_port/wb_port_tb.v
new file mode 100644
index 0000000..b32f900
--- /dev/null
+++ b/verilog/dv/wb_port/wb_port_tb.v
@@ -0,0 +1,157 @@
+// 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
+
+`default_nettype none
+
+`timescale 1 ns / 1 ps
+
+`include "uprj_netlists.v"
+`include "caravel_netlists.v"
+`include "spiflash.v"
+
+module wb_port_tb;
+	reg clock;
+	reg RSTB;
+	reg CSB;
+	reg power1, power2;
+	reg power3, power4;
+
+	wire gpio;
+	wire [37:0] mprj_io;
+	wire [7:0] mprj_io_0;
+	wire [15:0] checkbits;
+
+	assign checkbits = mprj_io[31:16];
+
+	assign mprj_io[3] = (CSB == 1'b1) ? 1'b1 : 1'bz;
+
+	// External clock is used by default.  Make this artificially fast for the
+	// simulation.  Normally this would be a slow clock and the digital PLL
+	// would be the fast clock.
+
+	always #12.5 clock <= (clock === 1'b0);
+
+	initial begin
+		clock = 0;
+	end
+
+	initial begin
+		$dumpfile("wb_port.vcd");
+		$dumpvars(0, wb_port_tb);
+
+		// Repeat cycles of 1000 clock edges as needed to complete testbench
+		repeat (30) begin
+			repeat (1000) @(posedge clock);
+			// $display("+1000 cycles");
+		end
+		$display("%c[1;31m",27);
+		`ifdef GL
+			$display ("Monitor: Timeout, Test Mega-Project WB Port (GL) Failed");
+		`else
+			$display ("Monitor: Timeout, Test Mega-Project WB Port (RTL) Failed");
+		`endif
+		$display("%c[0m",27);
+		$finish;
+	end
+
+	initial begin
+	   wait(checkbits == 16'h AB60);
+		$display("Monitor: MPRJ-Logic WB Started");
+		wait(checkbits == 16'h AB61);
+		`ifdef GL
+	    	$display("Monitor: Mega-Project WB (GL) Passed");
+		`else
+		    $display("Monitor: Mega-Project WB (RTL) Passed");
+		`endif
+	    $finish;
+	end
+
+	initial begin
+		RSTB <= 1'b0;
+		CSB  <= 1'b1;		// Force CSB high
+		#2000;
+		RSTB <= 1'b1;	    	// Release reset
+		#170000;
+		CSB = 1'b0;		// CSB can be released
+	end
+
+	initial begin		// Power-up sequence
+		power1 <= 1'b0;
+		power2 <= 1'b0;
+		power3 <= 1'b0;
+		power4 <= 1'b0;
+		#100;
+		power1 <= 1'b1;
+		#100;
+		power2 <= 1'b1;
+		#100;
+		power3 <= 1'b1;
+		#100;
+		power4 <= 1'b1;
+	end
+
+	always @(mprj_io) begin
+		#1 $display("MPRJ-IO state = %b ", mprj_io[7:0]);
+	end
+
+	wire flash_csb;
+	wire flash_clk;
+	wire flash_io0;
+	wire flash_io1;
+
+	wire VDD3V3 = power1;
+	wire VDD1V8 = power2;
+	wire USER_VDD3V3 = power3;
+	wire USER_VDD1V8 = power4;
+	wire VSS = 1'b0;
+
+	caravel uut (
+		.vddio	  (VDD3V3),
+		.vssio	  (VSS),
+		.vdda	  (VDD3V3),
+		.vssa	  (VSS),
+		.vccd	  (VDD1V8),
+		.vssd	  (VSS),
+		.vdda1    (USER_VDD3V3),
+		.vdda2    (USER_VDD3V3),
+		.vssa1	  (VSS),
+		.vssa2	  (VSS),
+		.vccd1	  (USER_VDD1V8),
+		.vccd2	  (USER_VDD1V8),
+		.vssd1	  (VSS),
+		.vssd2	  (VSS),
+		.clock	  (clock),
+		.gpio     (gpio),
+        .mprj_io  (mprj_io),
+		.flash_csb(flash_csb),
+		.flash_clk(flash_clk),
+		.flash_io0(flash_io0),
+		.flash_io1(flash_io1),
+		.resetb	  (RSTB)
+	);
+
+	spiflash #(
+		.FILENAME("wb_port.hex")
+	) spiflash (
+		.csb(flash_csb),
+		.clk(flash_clk),
+		.io0(flash_io0),
+		.io1(flash_io1),
+		.io2(),			// not used
+		.io3()			// not used
+	);
+
+endmodule
+`default_nettype wire
\ No newline at end of file