[env:sipeed-maixduino] platform = kendryte210 board = sipeed-maixduino framework = arduino ; change microcontroller board_build.mcu = K210 ; change MCU frequency board_build.f_cpu = 600000000L ; upload speed upload_speed = 750000 ; compiler optimizations to favour speed over size build_flags = -O3 build_unflags = -Os