Drive RGB666 Display by Raspberry Pi Dpi Interface

I was planning to make my own handheld game console. In my opinion, the display is the most essential component for retro game consoles. I tried the SPI display before, but the performance is limited due to the speech of the SPI clock. DSI interface would be a neat choice if the motherboard is raspberry pi 4/3b/cm4 etc. But the price of these models is crazy recently, so I chose the raspberry pi zero 2w.

Unfortunately, this model doesn't contain a DSI interface, so I am trying to drive the RGB666 display by DPI interface consisting of 40PIN GPIOs.

Supplies

WaveShare DPI 5inches 800*480 display
Pins converting board
Raspberry pi zero

Connect SSH service via Putty to the raspberry pi.

sudo nano /boot/config.txt

Edit the file as below

[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
#dtoverlay=vc4-kms-DPI-5inch
#max_framebuffers=2
dpi_timings=800 0 40 48 88 480 0 13 3 32 0 0 0 60 0 32000000 6
[all]
#dtoverlay=vc4-fkms-v3d
overscan_scale=1
dtoverlay=dpi24
enable_dpi_lcd=1
display_default_lcd=1
dpi_group=2
dpi_mode=87
dpi_output_format=0x6f005
hdmi_timings=800 0 40 48 88 480 0 13 3 32 0 0 0 60 0 32000000 6
disable_overscan=1

The parameters explanation:

DPI pinout

https://www.raspberrypi.com/documentation/computers/config_txt.html#dpi_group-dpi_mode-dpi_output_format

CTRL+X to save the changes
Then reboot the system

Sudo reboot

After a while, the 800*480 60Hz display is here. It's capable of playing the ACT games!

tAnd that would be a good foundation for my console. See you in PCB making part.