# See http://buildroot.org/manual.html#rootfs-custom # and http://elinux.org/RPiconfig for a description of config.txt syntax kernel=Image # To use an external initramfs file #initramfs rootfs.cpio.gz # Disable HDMI to reduce noise hdmi_ignore_hotplug=1 hdmi_blanking=2 disable_splash=1 # gpu mem config (seems to be totally nececcarry - smaller than 32m does not boot on rpi3) gpu_mem=32 # uart debug enable on GPIO14/15 enable_uart=1 uart_2ndstage=1 dtparam=uart0_console dtdebug=1 dtoverlay=disable-bt dtoverlay=disable-wifi dtoverlay=uart1-pi5 dtoverlay=uart2-pi5