Full support for Teensy 4.0: build, test, debug with PlatformIO!

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It works just fine with PlatformIO.

grafik
grafik1084×849 71.4 KB

platformio.ini

[env:teensy40]
platform = teensy
board = teensy40
framework = arduino
build_type = debug
lib_deps = 
    https://github.com/ftrias/TeensyDebug/archive/refs/heads/master.zip
; activate Dual USB just as README says
build_flags =
    -D USB_DUAL_SERIAL

src\main.cpp

#include <Arduino.h>
#include "TeensyDebug.h"
#pragma GCC optimize ("O0")

int mark = 0;

void test_function() {
  mark++;
}

void setup() {
  // Use the first serial port as you usually would
  Serial.begin(19200);

  // Debugger will use second USB Serial; this line is not need if using menu option
  debug.begin(SerialUSB1);

  // debug.begin(Serial1);   // or use physical serial port

  halt();                    // stop on startup; if not, Teensy keeps running and you
                             // have to set a breakpoint or use Ctrl-C.
}

void loop() {
  test_function();
  Serial.println(mark);
  delay(1000);
}

.vscode/launch.json

// AUTOMATICALLY GENERATED FILE. PLEASE DO NOT MODIFY IT MANUALLY
//
// PIO Unified Debugger
//
// Documentation: https://docs.platformio.org/page/plus/debugging.html
// Configuration: https://docs.platformio.org/page/projectconf/section_env_debug.html

{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "platformio-debug",
            "request": "launch",
            "name": "PIO Debug",
            "executable": "C:/Users/Max/Documents/PlatformIO/Projects/teensy-gdb-stub/.pio/build/teensy40/firmware.elf",
            "projectEnvName": "teensy40",
            "toolchainBinDir": "C:/Users/Max/.platformio/packages/toolchain-gccarmnoneeabi@1.50401.190816/bin",
            "internalConsoleOptions": "openOnSessionStart",
            "preLaunchTask": {
                "type": "PlatformIO",
                "task": "Pre-Debug"
            }
        },
        {
            "type": "platformio-debug",
            "request": "launch",
            "name": "PIO Debug (skip Pre-Debug)",
            "executable": "C:/Users/Max/Documents/PlatformIO/Projects/teensy-gdb-stub/.pio/build/teensy40/firmware.elf",
            "projectEnvName": "teensy40",
            "toolchainBinDir": "C:/Users/Max/.platformio/packages/toolchain-gccarmnoneeabi@1.50401.190816/bin",
            "internalConsoleOptions": "openOnSessionStart"
        },
        {
            "name": "Launch",
            "type": "cppdbg",
            "request": "launch",
            "miDebuggerPath": "C:/Users/Max/.platformio/packages/toolchain-gccarmnoneeabi@1.50401.190816/bin/arm-none-eabi-gdb.exe",
            "miDebuggerArgs": "--baud=115200",
            "MIMode": "gdb",
            "targetArchitecture": "arm",
            "program": "C:/Users/Max/Documents/PlatformIO/Projects/teensy-gdb-stub/.pio/build/teensy40/firmware.elf",
            "launchCompleteCommand": "None",
            "filterStderr": false,
            "filterStdout": false,
            "externalConsole": false,
            "cwd": "${workspaceRoot}",
            "setupCommands": [
              {"text": "set target-async off"},
              {"text": "target extended-remote \\\\.\\COM9"},   
              ]
        }
    ]
}

You have to adapt the all the paths for your local machine though.