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It still has many design files that have not been updated. They will be uploaded as soon as possible

======================================================2024/08/05

Communication Protocol for OSD Menu of LCD Controller

OSD.xlsx

shell:

PT-3D(SW).rar

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SCH & PCB file of the Motherboard:

SCH_PT386_1.2(M6117D).pdf

PCB_PT386_1.2(M6117D).rar

SCH & PCB file of the VGA card:

VGA_GD5428-29_SCH_Rev1.1.pdf

VGA_GD5428-29_PCB_Rev1.1.rar

User’s Guide:

Pocket386-EN1.0.pdf

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• Introduction to New Features

Display Aspect Ratio Switching (4:3 & 16:9): Utilize the OSD menu with Fn+F4 to seamlessly switch between 4:3 (default) and 16:9 display ratios.

(4:3 mode)

(16:9 mode)

• On-Screen Display (OSD) (Fn+F4)

The advanced OSD feature allows for on-screen overlay of function menus, enabling users to adjust LCD parameters such as brightness, contrast, and color. Additionally, it provides real-time status updates on internal devices and battery level without interrupting PC operations. 

(Partial functions of OSD)

• Integrated Mouse Control:

Users can enable the built-in mouse feature without an external PS2 mouse, using keyboard directional keys for navigation. The "?" and "shift" keys function as left and right mouse buttons, respectively.

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• Internal ISA Interface & GPIO Expansion:

The device supports the addition of a 16-bit ISA adapter, such as serial or network adapters, offering customization through 9 GPIOs accessible via the rear interface. 

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• Connectivity and Expansion Ports: 

Equipped with a built-in CH375 USB controller for DOS/Windows compatibility, 16-bit ISA bus extension, PS2 ports, VGA output, and a DB25 parallel port, facilitating versatile connectivity and expansion.

• Overview

    IBM PC Compatible Handheld Computer

    386 SX (40MHz) Embedded in an Ali M6117

    8MB DRAM

    Replaceable VGA Card ( CL-GD542X / TVGA9000 / CHIPS F655xx )

    Seamless Online Switching between 4:3 and 16:9 display ratios. (640x480 / 800x480)

    CF Card (IDE Mode) Storage

    USB Controller (CH375B)

    OPL3 (Yamaha YMF262-M) Sound Card

    Built-in Mouse

    OSD/SOSD LCD Control

    Lithium Battery

    External Interface