HardLabs

MZ2000 SD

yanataka60·MZ-2000_SD·KiCad/MZ-2000_SD_3_3/MZ2000_SD.kicad_pcb

MZ2000 SD PCB layout, top view — open source AVR/Arduino board by yanataka60

About the MZ2000 SD PCB

MZ2000 SD is an open source AVR/Arduino PCB design by yanataka60, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 100 mm, with 26 components from 14 distinct parts.

Its main chip is the Arduino_Pro_Mini_5V, from the AVR/Arduino family. Other key parts include the 74LS273, 8255, 74LS04, 29C256/27C512 and 74LS30. By type, the board carries 11 ICs, 11 capacitors, 3 connectors and 1 switch.

From the project

MZ-80B、MZ-2000、MZ-2200でSD-CARDからのアプリケーション起動、BASICなどのアプリケーションからSD-CARDへのロード、セーブを実現するものです。

MZ-80B、MZ-2000、MZ-2200でSD-CARDからのアプリケーション起動、BASICなどのアプリケーションからSD-CARDへのロード、セーブを実現するものです。

MZ-80B、MZ-2000、MZ-2200では「/」キーを押しながら電源を入れる、又は「/」キーを押しながらIPLボタンを押すことでI/Oデバイスとして繋いだROMからプログラムを読み込ませて起動する機能があります。

この機能を使ってSD-CARDからアプリケーションを起動させる機能を持たせたMONITOR SB-1520(MZ-80B)、MONITOR 1Z-1Z001M(MZ-2000)をROM起動させます。

SD対応MONITORからはFD又はFDLコマンドでSDからアプリケーションをLOAD実行ができます。

LOAD実行範囲は、0000h～F7FFhです。アプリケーション、ゲームを起動させるにはほぼ問題ないと思います。

MZ2000 SD, from the project README
From the project README

Main components on the MZ2000 SD

74LS2738255Arduino_Pro_Mini_5V74LS0429C256/27C51274LS3074LS24574LS10

MZ2000 SD bill of materials (BOM)

26 components, 14 distinct parts.

QtyPartRefs
2
74LS273
U1, U2
1
8255
U3
1
Arduino_Pro_Mini_5V
U4
2
74LS04
U5, U7
1
29C256/27C512
U6
2
74LS30
U8, U11
1
74LS245
U9
1
74LS10
U10
1
BUS
J1
1
Micro_SD_Card_Kit
J2
1
MicroSD Card Adapter
J3
1
SLIDE_SWITCH_3P
S1
1
100uF
C1
10
0.1uF
C2, C3, C4, C5, C6, C7, C8, C9 +2

MZ2000 SD design files

The KiCad project lives in the yanataka60/MZ-2000_SD repository on GitHub; these links point at the commit this page was built from.

MZ2000 SD: common questions

What microcontroller does the MZ2000 SD use?

The MZ2000 SD is built around the Arduino_Pro_Mini_5V, from the AVR/Arduino family.

How big is the MZ2000 SD PCB?

The MZ2000 SD measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MZ2000 SD?

26 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the MZ2000 SD design files?

From the yanataka60/MZ-2000_SD repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the MZ2000 SD design in my own project?

Yes, under the terms of its MIT license, which yanataka60 chose for the repository.

Can I test firmware for the MZ2000 SD without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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