树莓派3 配置文件conf 高分辨率 串口引脚重映射

# For more options and information see
# http://rpf.io/configtxtreadme
# Some settings may impact device functionality. See link above for details


# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1


# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1


# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16


# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720


# uncomment if hdmi display is not detected and composite is being output
hdmi_force_hotplug=1


# uncomment to force a specific HDMI mode (this will force VGA)
hdmi_group=2
hdmi_mode=23


# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1


# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2


# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4


# uncomment for composite PAL
#sdtv_mode=2


#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800


# Uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
#dtparam=i2s=on
dtparam=spi=on


# Uncomment this to enable the lirc-rpi module
#dtoverlay=lirc-rpi


# Additional overlays and parameters are documented /boot/overlays/README


# Enable audio (loads snd_bcm2835)
dtparam=audio=on
start_x=1
gpu_mem=128
#enable_uart=0
dtoverlay=pi3-miniuart-bt
force_turbo=1