diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000000000000000000000000000000000000..3b89df7d90d24b28d84ea9e49436cf0f3d065d33
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,33 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "cortex-debug",
+            "request": "launch",
+            "servertype": "openocd",
+            "name": "resource 16Mhz",
+            "executable": "./target/thumbv7em-none-eabihf/release/examples/resource",
+            "configFiles": [
+                "interface/stlink.cfg",
+                "target/stm32f4x.cfg"
+            ],
+            "swoConfig": {
+                "enabled": true,
+                "cpuFrequency": 16000000,
+                "swoFrequency": 2000000, // you may try 1000000 if not working
+                "source": "probe",
+                "decoders": [
+                    {
+                        "type": "console",
+                        "label": "Name",
+                        "port": 0
+                    }
+                ]
+            },
+            "cwd": "${workspaceRoot}"
+        },
+    ]
+}
\ No newline at end of file
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index 615a4dfe06dc41d2b0760402acd315c984bad1f1..f0085b9e135804c08235bf8b55dd8e29a0a90736 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -3,6 +3,18 @@
     // for the documentation about the tasks.json format
     "version": "2.0.0",
     "tasks": [
+        {
+            "label": "xargo build --example resource --release --features wcet_bkpt --target thumbv7em-none-eabihf",
+            "type": "shell",
+            "command": "xargo build --example resource --release --features wcet_bkpt --target thumbv7em-none-eabihf",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": [
+                "$rustc"
+            ]
+        },
         {
             "label": "xargo build --example resource --features klee_mode --target x86_64-unknown-linux-gnu",
             "type": "shell",
diff --git a/Cargo.toml b/Cargo.toml
index 3a4cc3b1e737ca9ee083593e79845c1a154af97c..d54df3789127edbb80a94f24523b8741c3cae847 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,9 +25,11 @@ untagged-option = "0.1.1"
 features = ["abort-on-panic"]
 version = "0.3.9"
 
-[dev-dependencies.stm32f103xx]
+[dev-dependencies.stm32f413]
+git = "https://gitlab.henriktjader.com/pln/stm32f413.git"
 features = ["rt"]
-version = "0.8.0"
+version = "0.2.0"
+
 
 [dev-dependencies.klee]
 path = "./klee"
diff --git a/examples/resource.rs b/examples/resource.rs
index 39c40f87807cbd57e57c89b89f7c6dc9fd2b69f6..3fced4cffa2d676b2460d00f17ad2fd3a52282e0 100644
--- a/examples/resource.rs
+++ b/examples/resource.rs
@@ -6,7 +6,7 @@
 
 extern crate cortex_m_rtfm as rtfm;
 // IMPORTANT always do this rename
-extern crate stm32f103xx;
+extern crate stm32f413;
 
 #[macro_use]
 extern crate klee;
@@ -17,7 +17,7 @@ use rtfm::{app, Resource, Threshold};
 
 app! {
     // this is the path to the device crate
-    device: stm32f103xx,
+    device: stm32f413,
 
     resources: {
         static X:u32 = 0;
@@ -27,13 +27,21 @@ app! {
     tasks: {
         EXTI1: {
             path: exti1,
+            priority: 1,
             resources: [X, Y],
         },
 
         EXTI2: {
             path: exti2,
+            priority: 3,
             resources: [Y],
         },
+
+        EXTI3: {
+            path: exti3,
+            priority: 2,
+            resources: [X],
+        },
     },
 }
 
@@ -60,6 +68,8 @@ fn exti2(t: &mut Threshold, mut r: EXTI2::Resources) {
     });
 }
 
+fn exti3(_t: &mut Threshold, _r: EXTI3::Resources) {}
+
 #[inline(never)]
 #[allow(dead_code)]
 fn init(_p: init::Peripherals, _r: init::Resources) {}
diff --git a/klee/src/lib.rs b/klee/src/lib.rs
index 0ae4873045128215bf8540911939c3750a972487..c770cbdc01543a43d2a35835c2b823f27533aa38 100644
--- a/klee/src/lib.rs
+++ b/klee/src/lib.rs
@@ -93,9 +93,9 @@ macro_rules! k_visit {
 }
 
 #[cfg(feature = "klee_mode")]
-pub fn k_read<T>(p: &T) {
+pub fn k_read<T>(_p: &T) {
     unsafe { core::ptr::read_volatile(p) };
 }
 
 #[cfg(not(feature = "klee_mode"))]
-pub fn k_read<T>(p: &T) {}
+pub fn k_read<T>(_p: &T) {}