Use Custom Toolchain (ARMCC instead of GCC)

5

If you want to use PlatformIO package management, you’ll have to create a proper package.json for toolchain-armcc. That’s just a metadata file, giving it the right name (and optionally version) is already enough. Also, the package.json should be placed in the root of the toolchain, not in bin/.

You could e.g. try something like

{
  "name": "toolchain-armcc",
  "version": "1.50000.200702",
  "description": "ARMCC compiler",
  "keywords": [
    "toolchain",
    "build tools",
    "compiler",
    "assembler",
    "linker",
    "preprocessor",
    "arm"
  ],
  "homepage": "https://developer.arm.com/Tools%20and%20Software/Arm%20Compiler%20for%20Embedded",
  "license": "GPL-2.0-or-later",
  "system": [
    "windows_amd64"
  ],
  "repository": {
    "type": "git",
    "url": "https://gcc.gnu.org/git/gcc.git"
  }
}

it’s also to be recommended to use symlink:// instead of file:// in the platform_packages to avoid doing a copy to internal PlatformIO folders.

Further reading on PlatformIO internals is e.g. here: Arduino Due (or other SAM3/4) upload fails with ATMEL ICE JTAG on VSCode with PlatformIO - #7 by clemens

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