www.joy
-
it.net
Pascalstr. 8 47506 Neukirchen
-
Vluyn
Manual installation
If you use already another Raspbian image and you want it to expand it
with the 3.2" / 3.5" touchscreen
-
TFT, then you can install the modules on
your system subsequently.Therefore, you must edit the file
config.txt
.
You have to open the terminal on your Raspberry Pi and follow the
instructions:
sudo nano /boot/config.txt
Add here, dependingon the display, the following lines at the beginning of
the opened file:
For the 3.2" TFT
-
display:
dtparam=spi=on
dtoverlay=joy
-
IT
-
Display
-
Driver32b
-
overlay:rotate=270,swapxy=1
dtparam=audio=on
max_usb_current=1
hdmi_force_hotplug=1
config_hdmi_boost=7
hdmi_drive=1
hdmi_ignore_edid=0xa5000080
For the 3.5" TFT
-
display:
dtparam=spi=on
dtoverlay=joy
-
IT
-
Display_Driver35a
-
overlay:rotate=270,swapxy=1
dtparam=audio=on
max_usb_current=1
hdmi_force_hotplug=1
config_hdmi_boost=7
hdmi_drive=1
hdmi_ignore_edid=0xa5000080
At the Raspberry Pi 4 ,you must do some additional settings. For that, you
have to comment out in the file config.txt beneath point
[pi4]
the command
dtoverlay=vc4
-
fkms
-
v3d
so it looks like the following:
[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
#
#dtoverlay=vc4
-
fkms
-
v3d <
----
Diese Einstellung muss mit einer # auskommentiert werden
max_framebuffers=2
Save now the file with the key combination CTRL + O, confirm with Enter
and leave the file with CTRL + X. Now the file
cmdline.txt
must be edited:
sudo nano /boot/comdline.txt
