build task

.vscode/extensions.json

@@ -0,0 +1,6 @@
+{
+    "recommendations": [
+        "ms-vscode.cpptools",
+        "ms-vscode.cmake-tools"
+    ]
+}

.vscode/settings.json

@@ -0,0 +1,10 @@
+{
+    "cmake.generator": "Unix Makefiles",
+    "cmake.buildDirectory": "${workspaceFolder}/build",
+    "cmake.configureOnOpen": true,
+    "C_Cpp.default.configurationProvider": "ms-vscode.cmake-tools",
+    "files.associations": {
+        "*.c": "c",
+        "*.h": "c"
+    }
+}

.vscode/tasks.json

@@ -0,0 +1,21 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "Build and Show Memory Info",
+            "type": "shell",
+            "command": "cmake --build build && avr-size --format=avr --mcu=attiny202 build/main.elf",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": ["$gcc"],
+            "presentation": {
+                "echo": true,
+                "reveal": "always",
+                "focus": false,
+                "panel": "shared"
+            }
+        }
+    ]
+}

main.c

@@ -4,11 +4,10 @@
 
 int main(void) {
     // Configure PA3 as output (Pin 7 on ATTINY202-SSN)
-    VPORTA.DIR |= (1 << 3);
+    VPORTA.DIR |= 8;
     
-
     while (1) {
-        VPORTA.OUT ^= (1 << 3);  // toggle PA3
+        VPORTA.OUT ^= 8;  // toggle PA3
         _delay_ms(500);
     }
 }