RTT works

.vscode/settings.json

@@ -0,0 +1,10 @@
+{
+    "files.associations": {
+        "stdio.h": "c",
+        "uart_commands.h": "c",
+        "main.h": "c",
+        "stm32f3xx_hal.h": "c",
+        "stm32f3xx_hal_conf.h": "c",
+        "limits": "c"
+    }
+}