diff --git a/.github/workflows/auto_update_submodule.yml b/.github/workflows/auto_update_submodule.yml
new file mode 100644
index 0000000..7219ddf
--- /dev/null
+++ b/.github/workflows/auto_update_submodule.yml
@@ -0,0 +1,41 @@
+    
+name: 'Auto-update Submodules'
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * *"
+
+jobs:
+  sync:
+    name: 'Auto-update Submodules'
+    runs-on: ubuntu-latest
+
+    # Use the Bash shell regardless whether the GitHub Actions runner is ubuntu-latest, macos-latest, or windows-latest
+    defaults:
+      run:
+        shell: bash
+
+    steps:
+    # Checkout the repository to the GitHub Actions runner
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        submodules: true
+    
+    # Git config
+    - name: Git Configurations
+      run: |
+        git config --global user.name 'Git bot'
+        git config --global user.email 'bot@noreply.github.com'
+        
+    # Update references
+    - name: Git Sumbodule Update
+      run: |
+        git submodule update --init --recursive
+        git submodule update --remote --recursive
+
+    - name: Commit update
+      run: |
+        git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}
+        git commit -am "Auto updated submodule references" && git push || echo "No changes to commit"
diff --git a/verilog/rtl/user_proj_example.v b/verilog/rtl/user_proj_example.v
index 7741210..b949583 100644
--- a/verilog/rtl/user_proj_example.v
+++ b/verilog/rtl/user_proj_example.v
@@ -69,7 +69,10 @@
     // IOs
     input  [`MPRJ_IO_PADS-1:0] io_in,
     output [`MPRJ_IO_PADS-1:0] io_out,
-    output [`MPRJ_IO_PADS-1:0] io_oeb
+    output [`MPRJ_IO_PADS-1:0] io_oeb,
+
+    // IRQ
+    output [2:0] irq
 );
     wire clk;
     wire rst;
@@ -96,6 +99,9 @@
     assign io_out = count;
     assign io_oeb = {(`MPRJ_IO_PADS-1){rst}};
 
+    // IRQ
+    assign irq = 3'b000;	// Unused
+
     // LA
     assign la_data_out = {{(127-BITS){1'b0}}, count};
     // Assuming LA probes [63:32] are for controlling the count register  
diff --git a/verilog/rtl/user_project_wrapper.v b/verilog/rtl/user_project_wrapper.v
index 95cad71..17c2511 100644
--- a/verilog/rtl/user_project_wrapper.v
+++ b/verilog/rtl/user_project_wrapper.v
@@ -31,7 +31,7 @@
 
 module user_project_wrapper #(
     parameter BITS = 32
-)(
+) (
 `ifdef USE_POWER_PINS
     inout vdda1,	// User area 1 3.3V supply
     inout vdda2,	// User area 2 3.3V supply
@@ -72,13 +72,17 @@
     inout [`MPRJ_IO_PADS-10:0] analog_io,
 
     // Independent clock (on independent integer divider)
-    input   user_clock2
-);
-    /*--------------------------------------*/
-    /* User project is instantiated  here   */
-    /*--------------------------------------*/
+    input   user_clock2,
 
-    user_proj_example mprj (
+    // User maskable interrupt signals
+    output [2:0] user_irq
+);
+
+/*--------------------------------------*/
+/* User project is instantiated  here   */
+/*--------------------------------------*/
+
+user_proj_example mprj (
     `ifdef USE_POWER_PINS
 	.vdda1(vdda1),	// User area 1 3.3V power
 	.vdda2(vdda2),	// User area 2 3.3V power
@@ -93,29 +97,33 @@
     .wb_clk_i(wb_clk_i),
     .wb_rst_i(wb_rst_i),
 
-	// MGMT SoC Wishbone Slave
+    // MGMT SoC Wishbone Slave
 
-	.wbs_cyc_i(wbs_cyc_i),
-	.wbs_stb_i(wbs_stb_i),
-	.wbs_we_i(wbs_we_i),
-	.wbs_sel_i(wbs_sel_i),
-	.wbs_adr_i(wbs_adr_i),
-	.wbs_dat_i(wbs_dat_i),
-	.wbs_ack_o(wbs_ack_o),
-	.wbs_dat_o(wbs_dat_o),
+    .wbs_cyc_i(wbs_cyc_i),
+    .wbs_stb_i(wbs_stb_i),
+    .wbs_we_i(wbs_we_i),
+    .wbs_sel_i(wbs_sel_i),
+    .wbs_adr_i(wbs_adr_i),
+    .wbs_dat_i(wbs_dat_i),
+    .wbs_ack_o(wbs_ack_o),
+    .wbs_dat_o(wbs_dat_o),
 
-	// Logic Analyzer
+    // Logic Analyzer
 
-	.la_data_in(la_data_in),
-	.la_data_out(la_data_out),
-	.la_oen (la_oen),
+    .la_data_in(la_data_in),
+    .la_data_out(la_data_out),
+    .la_oen (la_oen),
 
-	// IO Pads
+    // IO Pads
 
     .io_in (io_in),
     .io_out(io_out),
-    .io_oeb(io_oeb)
-    );
+    .io_oeb(io_oeb),
+
+    // IRQ
+    .irq(user_irq)
+);
 
 endmodule	// user_project_wrapper
+
 `default_nettype wire