HardLabs

MZ-700 SD-NiseRamFile

yanataka60·MZ-700_SD-NiseRamFile·KiCad/MZ-700_SD+NRF.kicad_pcb

MZ-700 SD-NiseRamFile PCB layout, top view — open source AVR/Arduino board by yanataka60

About the MZ-700 SD-NiseRamFile PCB

MZ-700 SD-NiseRamFile is an open source AVR/Arduino PCB design by yanataka60, published on GitHub under the MIT license. It is a 2-layer board measuring 77 × 145 mm, with 25 components from 20 distinct parts.

Its main chip is the Arduino_Pro_Mini_5V, from the AVR/Arduino family. Other key parts include the 74LS04, 8255 and 74LS30. By type, the board carries 8 connectors, 5 capacitors, 4 ICs, 4 resistors, 3 switches and 1 diode.

From the project

しっぽいいんちょさんが作られた「偽RAMFILE for MZ-1500」を元にしてMZ-700_SDを合体させたボードです。

しっぽいいんちょさんが作られた「偽RAMFILE for MZ-1500」を元にしてMZ-700_SDを合体させたボードです。

オマケとしてMZ-1500のサウンド機能を付加してMZ-1500用ゲームのサウンドも鳴るようにしてみました。あくまでオマケですので完全にMZ-1500と同等になるかは未検証です。

・EMM0からの起動(ただし、EMM0にHu-BASICの起動ディスクイメージがある場合のみ)

・EXT-ROM領域(E800h～FFFFh)のRAM化(起動時にはF000h～FFFFhにMZ-700SD用ROMの内容が自動的に書き込まれます。1Z-009BLauncherをLOAD起動後であればEXT-ROMをファイル化したEXT-ROM.MZTをEXT-ROM領域にLOADが可能です)

MZ-700SD: https://github.com/yanataka60/MZ-700SD

MZ-700 SD-NiseRamFile, from the project README
From the project README

Main components on the MZ-700 SD-NiseRamFile

74LS048255Arduino_Pro_Mini_5V74LS30

MZ-700 SD-NiseRamFile bill of materials (BOM)

25 components, 20 distinct parts.

QtyPartRefs
1
74LS04
U1
1
8255
U3
1
Arduino_Pro_Mini_5V
U4
1
74LS30
U6
1
MZ-80K BUS
J1
1
Micro_SD_Card_Kit
J2
1
INT VCC
J3
1
EXT 5V
J4
1
MicroSD Card Adapter
J5
1
RP2350B Left
J6
1
RP2350B Right
J7
1
Conn_Coaxial
J9
1
INT/EXT
S1
2
SW_Push
SW1, SW2
1
1N5819
D1
3
0.1uF
C1, C3, C5
1
0.01uF
C2
1
100uF
C6
3
330
R1, R2, R3
1
1k
R4

MZ-700 SD-NiseRamFile design files

The KiCad project lives in the yanataka60/MZ-700_SD-NiseRamFile repository on GitHub; these links point at the commit this page was built from.

MZ-700 SD-NiseRamFile: common questions

What microcontroller does the MZ-700 SD-NiseRamFile use?

The MZ-700 SD-NiseRamFile is built around the Arduino_Pro_Mini_5V, from the AVR/Arduino family.

How big is the MZ-700 SD-NiseRamFile PCB?

The MZ-700 SD-NiseRamFile measures 77 × 145 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MZ-700 SD-NiseRamFile?

25 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the MZ-700 SD-NiseRamFile design files?

From the yanataka60/MZ-700_SD-NiseRamFile repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the MZ-700 SD-NiseRamFile 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 MZ-700 SD-NiseRamFile 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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