HardLabs

FM-7 SD

yanataka60·FM-7_SD·KiCad/Rev3.0/FM-7_SD.kicad_pcb

FM-7 SD PCB layout, top view — open source AVR/Arduino board by yanataka60

About the FM-7 SD PCB

FM-7 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 17 components from 10 distinct parts.

Its main chip is the Arduino_Pro_Mini_5V, from the AVR/Arduino family. Other key parts include the 74LS04, 74LS30, 8255 and 74LS00. By type, the board carries 7 ICs, 7 capacitors and 3 connectors.

From the project

FM-8、FM-7、FM-77シリーズでSD-CARDからロード、セーブ機能を実現するものです。

FM-8、FM-7、FM-77シリーズでSD-CARDからロード、セーブ機能を実現するものです。

対応できるBASICのバージョンは、FM-8はF-BASICV1.0(ROM-BASIC、DISK-VERSIONとも)、FM-7以降はF-BASICV3.0(ROM-BASIC、DISK-VERSIONとも)です。

対応機種はFM-8からFM-77AV40SXまで全てのFMシリーズとなりますが、基板のRevsionにより対応範囲が異なります。

Rev1.1はFM-7、FM-NEW7なら50Pinフラットケーブルで接続できますが、FM-77以降は外部拡張インタフェースの仕様が変更となっており、アンフェノール フルピッチへ変換するケーブルの自作が必要です。

Rev2.0は32Pin拡張スロット仕様でFM-7以降全ての機種に接続できますが、純正の32Pinコネクタ(FCN-365P032-AU)は製造が終了してしまったため入手困難です。手持ちにある方は利用できますが、無い方はOMRON XC5A-3282-1が代替品として使えますが、加工が必要です。

FM-7 SD, from the project README
From the project README

Main components on the FM-7 SD

74LS0474LS308255Arduino_Pro_Mini_5V74LS00

FM-7 SD bill of materials (BOM)

17 components, 10 distinct parts.

QtyPartRefs
2
74LS04
U1, U7
2
74LS30
U2, U6
1
8255
U3
1
Arduino_Pro_Mini_5V
U4
1
74LS00
U5
1
FM-7_BUS
J1
1
Micro_SD_Card_Kit
J4
1
MicroSD Card Adapter
J5
6
0.1uF
C1, C3, C4, C5, C6, C7
1
100uF
C2

FM-7 SD design files

The KiCad project lives in the yanataka60/FM-7_SD repository on GitHub; these links point at the commit this page was built from.

FM-7 SD: common questions

What microcontroller does the FM-7 SD use?

The FM-7 SD is built around the Arduino_Pro_Mini_5V, from the AVR/Arduino family.

How big is the FM-7 SD PCB?

The FM-7 SD measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the FM-7 SD?

17 components, from 10 distinct parts. The full bill of materials is listed on this page.

Where can I download the FM-7 SD design files?

From the yanataka60/FM-7_SD repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the FM-7 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 FM-7 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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