Used tools on Windows:
    arm-none-eabi-gcc (GNU Arm Embedded Toolchain 9-2020-q2-update) 9.3.1 20200408 (release)

    GNU Make 4.2.1

    clang version 11.0.0 (https://github.com/msys2/MINGW-packages c0083b9edc111315c868f9c53dd60aaa78d1669b)
        Target: i686-w64-windows-gnu
        Thread model: posix
        InstalledDir: c:\msys2\mingw32\bin


2020-12:
    by audin
      http://mpu.seesaa.net/article/478859204.html

