From e8af45a59b08233ac7342b38c37c53faadd2141b Mon Sep 17 00:00:00 2001
From: Rob Riggs <rob@pangalactic.org>
Date: Fri, 23 Aug 2024 16:30:19 -0700
Subject: [PATCH] Add OpenOCD debugging config for SWO output in VS Code.

---
 .vscode/launch.json | 83 +++++++++++++++++++++++++++++++++++++++++++++
 .vscode/tasks.json  | 16 ++++++++-
 stlink-tnc3.cfg     |  8 ++---
 3 files changed, 102 insertions(+), 5 deletions(-)

diff --git a/.vscode/launch.json b/.vscode/launch.json
index 6ac8144..ef18695 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -31,6 +31,89 @@
             /* If you use external loader, add additional arguments */
             //"serverArgs": ["--extload", "path/to/ext/loader.stldr"],
         },
+        {
+            "name": "Build & Debug Microcontroller - OpenOCD",
+            "cwd": "${workspaceFolder}",
+            "type": "cortex-debug",
+            "executable": "${command:cmake.launchTargetPath}",
+            // Let CMake extension decide executable: "${command:cmake.launchTargetPath}"
+            // Or fixed file path: "${workspaceFolder}/path/to/filename.elf"
+            "request": "launch",
+            "servertype": "openocd",
+            "configFiles": [
+                "${workspaceFolder}/stlink-tnc3.cfg"
+            ],
+            "device": "STM32L433CCUx", //MCU used
+            "interface": "swd",
+            "serialNumber": "",        //Set ST-Link ID if you use multiple at the same time
+            "runToEntryPoint": "main",
+            "svdFile": "${config:STM32VSCodeExtension.cubeCLT.path}/STMicroelectronics_CMSIS_SVD/STM32L4P5.svd",
+            "v1": false,               //Change it depending on ST Link version
+            "serverpath": "/usr/bin/openocd",
+            "stm32cubeprogrammer":"${config:STM32VSCodeExtension.cubeCLT.path}/STM32CubeProgrammer/bin",
+            "stlinkPath": "${config:STM32VSCodeExtension.cubeCLT.path}/STLink-gdb-server/bin/ST-LINK_gdbserver",   
+            "armToolchainPath": "${config:STM32VSCodeExtension.cubeCLT.path}/GNU-tools-for-STM32/bin",
+            "gdbPath":"${config:STM32VSCodeExtension.cubeCLT.path}/GNU-tools-for-STM32/bin/arm-none-eabi-gdb",            
+            "swoConfig": {
+                "enabled": true,
+                "cpuFrequency": 16000000,
+                "swoFrequency":  2000000,
+                "source": "probe",
+                "decoders": [
+                    { 
+                        "type": "console",
+                        "label": "ITM",
+                        "showOnStartup": true,
+                        "port": 0,
+                        "encoding": "ascii"
+                    }
+                ]
+            },
+            "preLaunchTask": "Build project"
+            /* If you use external loader, add additional arguments */
+            //"serverArgs": ["--extload", "path/to/ext/loader.stldr"],
+        },
+        {
+            "name": "Attach to MCU OpenOCD",
+            "cwd": "${workspaceFolder}",
+            "type": "cortex-debug",
+            "executable": "${command:cmake.launchTargetPath}",
+            // Let CMake extension decide executable: "${command:cmake.launchTargetPath}"
+            // Or fixed file path: "${workspaceFolder}/path/to/filename.elf"
+            "request": "attach",
+            "servertype": "openocd",
+            "configFiles": [
+                "${workspaceFolder}/stlink-tnc4.cfg"
+            ],
+            "device": "STM32L4P5RETx", //MCU used
+            "interface": "swd",
+            "serialNumber": "",        //Set ST-Link ID if you use multiple at the same time
+            "runToEntryPoint": "main",
+            "svdFile": "${config:STM32VSCodeExtension.cubeCLT.path}/STMicroelectronics_CMSIS_SVD/STM32L4P5.svd",
+            "v1": false,               //Change it depending on ST Link version
+            "serverpath": "/usr/bin/openocd",
+            "stm32cubeprogrammer":"${config:STM32VSCodeExtension.cubeCLT.path}/STM32CubeProgrammer/bin",
+            "stlinkPath": "${config:STM32VSCodeExtension.cubeCLT.path}/STLink-gdb-server/bin/ST-LINK_gdbserver",   
+            "armToolchainPath": "${config:STM32VSCodeExtension.cubeCLT.path}/GNU-tools-for-STM32/bin",
+            "gdbPath":"${config:STM32VSCodeExtension.cubeCLT.path}/GNU-tools-for-STM32/bin/arm-none-eabi-gdb",            
+            "swoConfig": {
+                "enabled": true,
+                "cpuFrequency": 16000000,
+                "swoFrequency":  2000000,
+                "source": "probe",
+                "decoders": [
+                    { 
+                        "type": "console",
+                        "label": "ITM",
+                        "showOnStartup": true,
+                        "port": 0,
+                        "encoding": "ascii"
+                    }
+                ]
+            }
+           /* If you use external loader, add additional arguments */
+            //"serverArgs": ["--extload", "path/to/ext/loader.stldr"],
+        },
         {
             "name": "Attach to Microcontroller - ST-Link",
             "cwd": "${workspaceFolder}",
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index ce3b438..bffa9d4 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -36,7 +36,21 @@
                 "CubeProg: Flash project (SWD)",
             ]
         },
-                {
+        {
+            "type": "cppbuild",
+            "label": "Build project",
+            "command": "cmake",
+            "args": ["--build", "${command:cmake.buildDirectory}", "-j", "16"],
+            "options": {
+                "cwd": "${workspaceFolder}"
+            },
+            "problemMatcher": ["$gcc"],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        },
+        {
             "type": "cmake",
             "label": "CMake: clean rebuild",
             "command": "cleanRebuild",
diff --git a/stlink-tnc3.cfg b/stlink-tnc3.cfg
index 6d6320d..c0ce922 100644
--- a/stlink-tnc3.cfg
+++ b/stlink-tnc3.cfg
@@ -1,12 +1,12 @@
 # This is an TNC3 with a STM32L433CCU6 chip.
 
-source [find interface/stlink-v2-1.cfg]
+source [find interface/stlink.cfg]
 
 transport select hla_swd
 
 set WORKAREASIZE 0x4000
 source [find target/stm32l4x.cfg]
 
-reset_config srst_only
-itm port 0 on
-tpiu config internal swv uart off 72000000
+reset_config srst_only srst_nogate
+# itm port 0 on
+# tpiu config internal swv uart off 72000000