board = 'nucleo_f767zi' fs = import('fs') signing_key = fs.expanduser('~') / 'mcuboot' / 'key.pem' subdir('rtos') subdir('app') subdir('btl') subdir('sim') erase = custom_target( build_always_stale: true, build_by_default: false, command: [ 'st-flash', '--connect-under-reset', 'erase', ], output: ['erase'], )