最終更新:2024-10-17 (木) 07:28:23 (94d)
config.txt
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https://www.raspberrypi.com/documentation/computers/config_txt.html
概要
- The Raspberry Pi uses a configuration file instead of the BIOS
デフォルト
動作
- This is read by the GPU before the ARM CPU and Linux are initialised.
- It must therefore be located on the first (boot) partition of your SD card, alongside bootcode.bin and start.elf.
アクセス方法
- This file is normally accessible as Linux/boot/config.txt from Linux, and must be edited as root.
- Windows or OS X it is visible as a file in the only accessible part of the card.
ツール
UART
メモ
- ブート後はRaspberry Pi OS/boot/config.txtとしてアクセスできる (bullseyeまで)
- bookworm以降はRaspberry Pi OS/boot/firmware/config.txt?
設定の確認
関連
例
# For more options and information see # http://rpf.io/configtxt # 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 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=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 infrared communication. #dtoverlay=gpio-ir,gpio_pin=17 #dtoverlay=gpio-ir-tx,gpio_pin=18 # Additional overlays and parameters are documented /boot/overlays/README # Enable audio (loads snd_bcm2835) dtparam=audio=on # Automatically load overlays for detected cameras camera_auto_detect=1 # Automatically load overlays for detected DSI displays display_auto_detect=1 # Enable DRM VC4 V3D driver dtoverlay=vc4-kms-v3d max_framebuffers=2 # Disable compensation for displays with overscan disable_overscan=1 [cm4] # Enable host mode on the 2711 built-in XHCI USB controller. # This line should be removed if the legacy DWC2 controller is required # (e.g. for USB device mode) or if USB support is not required. otg_mode=1 [all] [pi4] # Run as fast as firmware / board allows arm_boost=1 [all] # NOOBS Auto-generated Settings: