Have you tried to use our packaged image file directly for the Bookworm system? The screen as well as other drivers are already included in the image file.
I have tried this. Now my device wonât boot. It looks like the image provided in instructions does not make a bootable system. See screenshot.
I followed the Linux instructions.
Seeed_Seraphina please advise.
I was able to re-flash with the same image. The device came back and booted, but no screen is available.
I am checking the i2c again.
modifying the config.txt to 32-bit caused the system to not boot. no go so far. checking to make sure the correct image is used.
finally have a stable version. It is: Linux raspberrypi 5.15.32-v7l+ #1538 SMP Thu Mar 31 19:39:41 BST 2022 armv7l GNU/Linux
the i2c is a little different:
sv@raspberrypi:~ $ i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- UU -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- UU -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- 56 -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
I have HDMI connected externally, but this is the only screen working, nothing onboard.
Now after applying the reTerminal2.sh , I am missing the external HDMI screen.
# 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]
enable_uart=1
dtoverlay=dwc2,dr_mode=host
dtparam=ant2
disable_splash=1
ignore_lcd=1
dtoverlay=vc4-kms-v3d-pi4
dtoverlay=i2c3,pins_4_5
gpio=13=pu
dtoverlay=reTerminal,tp_rotate=1
#dtoverlay=reTerminal-bridge
dtoverlay=i2c1,pins_2_3
Are you checking this one?
If the I2C slave of 0x45 does not appear, then there is a problem with the STM32 firmware.
Perhaps even a simple Method 1 could be used to write firmware. (Skip No.8)
Hello everyone,
We are pleased to announce that we have officially packaged the latest kernel version 6.6.20 into an image package, which includes both 64-bit and 32-bit versions. After conducting thorough testing, by flashing this image, you can resolve the issue of the LCD screen not turning on. We apologize for the delay and hope that this update can be of assistance to all of you.
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