VS Code file updates

.gitignore

@@ -11,6 +11,7 @@ target/
 !.vscode/launch.json
 !.vscode/tasks.json
 !.vscode/extensions.json
+!.vscode/openocd-helpers.tcl
 
 #temporary files
 .DS_Store

.vscode/launch.json

@@ -14,12 +14,13 @@
             "servertype": "openocd",
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "cargo build --examples",
-            "runToMain": true,
+            "runToEntryPoint": "true",
             "executable": "./target/thumbv7em-none-eabihf/debug/examples/${fileBasenameNoExtension}",
             "preLaunchCommands": ["break rust_begin_unwind"],
             "device": "STM32F303VCT6",
             "configFiles": [
-                "interface/stlink-v2-1.cfg",
+                "${workspaceRoot}/.vscode/openocd-helpers.tcl",
+                "interface/stlink.cfg",
                 "target/stm32f3x.cfg"
             ],
             "svdFile": "${env:HOME}/.svd/STM32F303.svd",

.vscode/openocd-helpers.tcl

@@ -0,0 +1,17 @@
+#
+# Cortex-Debug extension calls this function during initialization. You can copy this
+# file, modify it and specifyy it as one of the config files supplied in launch.json
+# preferably at the beginning.
+#
+# Note that this file simply defines a function for use later when it is time to configure
+# for SWO.
+#
+set USE_SWO 0
+proc CDSWOConfigure { CDCPUFreqHz CDSWOFreqHz CDSWOOutput } {
+    # Alternative option: Pipe ITM output into itm.txt file
+    # tpiu config internal itm.txt uart off $CDCPUFreqHz
+
+    # Default option so SWO display of VS code works.
+    tpiu config internal $CDSWOOutput uart off $CDCPUFreqHz $CDSWOFreqHz
+    itm port 0 on
+}