Wandy CPC-300
This page was last modified 17:53, 20 August 2019 by Mars2000you. Based on work by Gdx and Rderooy.

Contents

Description

The Wandy CPC-300 aka WANDY 2 is the adaptation for Thailand of the Daewoo CPC-300. It has an 'International' QWERTY keyboard.

This machine has an English/Thai language sticker on keyboard buttons and contains an additional ROM with Thai characters and a few programs.

Brand Wandy (Manufacturer: Daewoo)
Type CPC-300 (WANDY 2)
Year 1987
Region Thailand
Original price
RAM 128kB in slot 0-2
VRAM 128kB
Media MSX cartridges
Video Yamaha V9938
Audio PSG (AY-3-8910)
Chipset Daewoo DW64MX1
Extras lightpen connector, reset button

Pictures

Computer

Wandy CPC-300
Wandy CPC-300 label
Wandy CPC-300 back
Wandy CPC-300 box

Firmware

Wandy Thai firmware - intro screen
Wandy Thai firmware - copyright screen
Wandy Thai firmware - several screenshots on Wandy CPC-300 ad

Specifications

The Wandy CPC-300 is a MSX2 that does not use a MSX-Engine but a custom IC DW64MX1 that includes the 8255 PPI, slot select circuitry, a memory mapper and various glue logic. The CPU is a Z80A from Goldstar (GSS Z8400A PS).

The main RAM is present on slot 0-2, a configuration that can cause poorly written software to crash. Also, with this layout, the POKE-1,(15-PEEK(-1)\16)*17 trick to workaround buggy software that does not handle subslots properly will cause this machine to freeze.

Slot Map

Help needed
The below slot-map is an assumption, it needs to be checked on a real machine.
Slot 0-0 Slot 0-1 Slot 0-2 Slot 0-3 Slot 1 Slot 2 Slot 3
Page C000h~FFFFh 128kB
Memory
Mapper
Cartridge
Slot
Expansion
Bus
Page 8000h~BFFFh Thai
ROM
Page 4000h~7FFFh Main-ROM
Page 0000h~3FFFh Sub-ROM

Connections

Repair and Upgrade