HardLabs

SystemController

46nori·FMSynthEnsemble·hardware/Controller/SystemController.kicad_pcb

SystemController PCB layout, top view — open source RP2040/RP2350 board by 46nori

About the SystemController PCB

SystemController is an open source RP2040/RP2350 PCB design by 46nori, published on GitHub under the MIT license. It is a 4-layer board measuring 180 × 81.3 mm, with 63 components from 39 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the AE-LLCNV8-DIP20, NJM7805, 74HC00, 74HC74 and NJM4580. By type, the board carries 17 capacitors, 15 connectors, 11 resistors, 10 ICs, 2 jumpers and 2 switches.

It belongs with the audio designs in this gallery.

From the project

USB MIDI FM synthesizer that supports voice synthesis using CSM (Composite Sinusoidal Model

モジュール構造のハードウェアとなっている。 コントローラモジュールには4本のDockがあり、FM音源モジュールを接続する。YM2203とYM2608が混在可能。 FM音源モジュールのアナログ出力は、ミキサー・アンプモジュールを接続する。 コントロールパネルモジュールはFM音源モジュールのI/Oポートに接続する。

システムコントローラーはRaspberryPi Pico2を使用しているが、パフォーマンスは若干落ちるがPicoも使用可能。

- /CS生成用3bit - /RD, /WR - A0, A1 - D0 - D8 - /IRQ (4bit)

FM音源LSIは5V系なので、Raspberry Pi Picoとの接続にはAE-LLCNV8-DIP20などで3.3V/5Vレベル変換が必要である。

アナログ回路の低ノイズ化を考慮して、秋月電子の超ローノイズ可変電圧キットAE-TPS7A4700を5V出力で使用している。 消費電流は800mA程度を見込む必要があり、入出力電圧差は1V程度としなければならない。 6V/1.8AのAD-A60P180を推奨ACアダプタとする。

Main components on the SystemController

PicoAE-LLCNV8-DIP20NJM780574HC0074HC74NJM4580MCP4018

SystemController bill of materials (BOM)

63 components, 39 distinct parts.

QtyPartRefs
1
Pico
U101
2
AE-LLCNV8-DIP20
U102, U103
1
NJM7805
U104
2
74HC00
U105, U107
1
74HC74
U106
2
NJM4580
U201, U202
1
MCP4018
U203
1
16MHz
X101
1
UART
J101
1
MIDI IN
J102
1
MIDI IN
J103
1
DC 7-12V / 1A
J104
1
Power SW
J105
1
FMB1
J106
1
FMB0
J107
1
FMB3
J108
1
FMB2
J109
1
AnalogIn_0
J110
1
AnalogIn_1
J111
1
AnalogIn_2
J112
Show 19 more
QtyPartRefs
1
AnalogIn_3
J113
1
Audio Out
J201
1
AudioJack3
J202
1
+5V
JP101
1
Bridge
JP102
1
TLP2361
OC101
2
1K
RV201, RV202
1
Power SW
SW101
1
RESET
SW102
1
LED
POWER101
1
1N4148
D101
12
0.1u
C101, C102, C104, C105, C106, C107, C108, C109 +4
1
0.33u
C103
3
10u
C203, C204, C206
1
1000p
C205
1
390
R101
4
10K
R102, R103, R104, R106
1
1K
R105
5
10K
R201, R202, R203, R204, R205

SystemController design files

The KiCad project lives in the 46nori/FMSynthEnsemble repository on GitHub; these links point at the commit this page was built from.

SystemController: common questions

What microcontroller does the SystemController use?

The SystemController is built around the Pico, from the RP2040/RP2350 family.

How big is the SystemController PCB?

The SystemController measures 180 × 81.3 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the SystemController?

63 components, from 39 distinct parts. The full bill of materials is listed on this page.

Where can I download the SystemController design files?

From the 46nori/FMSynthEnsemble repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the SystemController design in my own project?

Yes, under the terms of its MIT license, which 46nori chose for the repository.

Can I test firmware for the SystemController without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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