.hex file not getting generated

PlatformIO IDE
4

In your platformio.ini, add

extra_scripts = post:extra_script.py

At the same directory level as the platformio.ini, create a new extra_script.py file and fill it with the content

Import("env")
# Custom HEX from ELF
env.AddPostAction(
    "$BUILD_DIR/${PROGNAME}.elf",
    env.VerboseAction(" ".join([
        "$OBJCOPY", "-O", "ihex", "-R", ".eeprom",
        "$BUILD_DIR/${PROGNAME}.elf", "$BUILD_DIR/${PROGNAME}.hex"
    ]), "Building $BUILD_DIR/${PROGNAME}.hex")
)

After a new clean build (project task → Clean, Build), the .pio/build/<env> folder should have firmware.hex.

1 Like