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MegaBlaster2

AidanHockey5·MegaBlaster2·schematic/MegaBlaster2.kicad_pcb

MegaBlaster2 PCB layout, top view — open source Microchip SAM board by AidanHockey5
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About the MegaBlaster2 PCB

MegaBlaster2 is an open source Microchip SAM PCB design by AidanHockey5, published on GitHub under the AGPL-3.0 license. It is a 4-layer board measuring 99 × 99 mm, with 102 components from 46 distinct parts.

Its main chip is the ATSAMD51J19A-A, from the Microchip SAM family. Other key parts include the LM2733XMF, LD1117S33TR_SOT223, LD1117S50TR_SOT223, W25Q32JVSS and Si5351A-B-GT. By type, the board carries 42 capacitors, 29 resistors, 11 ICs, 7 switches, 4 connectors and 3 inductors.

It belongs with the retro computing designs in this gallery.

From the project

The latest iteration of my hardware Sega Genesis/Megadrive Video Game Music Player

Demo video can be found here: https://www.youtube.com/watch?v=4sKwGWfikdc

This project contains the source material for the Mega Blaster 2, a hardware Sega Genesis/Mega Drive video game music (VGM) player that utilizes the real sound chips. Play any Genesis track on-demand with brilliant sound quality on the actual YM2612/YM3438 and SN76489 PSG synthesizer chips that were found in the real Genesis consoles(1). The Mega Blaster 2 is compatible with both .vgm and .vgz files and can support both the YM2612 and YM3438 simply by changing the DIP switch values. This unit does not use any emulated…

MegaBlaster2, from the project README
From the project README

Main components on the MegaBlaster2

ATSAMD51J19A-ALM2733XMFLD1117S33TR_SOT223LD1117S50TR_SOT223W25Q32JVSSSi5351A-B-GTRAM_EXPYM2612SN76489TPA6111A2DRNE5532

MegaBlaster2 bill of materials (BOM)

102 components, 46 distinct parts.

QtyPartRefs
1
ATSAMD51J19A-A
U1
1
LM2733XMF
U2
1
LD1117S33TR_SOT223
U3
1
LD1117S50TR_SOT223
U4
1
W25Q32JVSS
U5
1
Si5351A-B-GT
U6
1
RAM_EXP
U7
1
YM2612
U8
1
SN76489
U9
1
TPA6111A2DR
U10
1
NE5532
U11
1
32.768KHz
Y1
1
25MHz
Y2
1
USB_B
J1
1
SWD
J2
1
Micro_SD_Card
J3
1
AudioJack3
J4
1
100K
RV1
1
10K
RV2
6
SW_Push_Dual
SW2, SW3, SW4, SW5, SW6, SW7
Show 26 more
QtyPartRefs
1
YM_SELECTION
SW8
1
128x64_I2C_OLED
DS1
1
SS34
D1
2
10uH
L1, L2
1
100uH
L3
2
22pF
C1, C3
17
100nF
C2, C4, C5, C6, C7, C11, C15, C16 +9
9
10uF
C8, C9, C13, C14, C20, C21, C32, C33 +1
1
4.7uF
C10
1
220pF
C12
2
0.47uF
C17, C22
1
330uF
C23
5
1uF
C31, C38, C39, C40, C41
2
120pF
C34, C35
2
100uF
C36, C37
10
10K
R1, R2, R9, R10, R19, R23, R27, R28 +2
2
51K
R3, R5
1
12K
R4
2
4.7K
R6, R7
1
4.7R
R8
2
15K
R11, R18
3
2K2
R12, R17, R22
2
47K
R13, R14
2
82K
R15, R16
2
100K
R20, R21
2
5K6
R25, R26

MegaBlaster2 design files

The KiCad project lives in the AidanHockey5/MegaBlaster2 repository on GitHub; these links point at the commit this page was built from.

MegaBlaster2: common questions

What microcontroller does the MegaBlaster2 use?

The MegaBlaster2 is built around the ATSAMD51J19A-A, from the Microchip SAM family.

How big is the MegaBlaster2 PCB?

The MegaBlaster2 measures 99 × 99 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the MegaBlaster2?

102 components, from 46 distinct parts. The full bill of materials is listed on this page.

Where can I download the MegaBlaster2 design files?

From the AidanHockey5/MegaBlaster2 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the MegaBlaster2 design in my own project?

Yes, under the terms of its AGPL-3.0 license, which AidanHockey5 chose for the repository.

Can I test firmware for the MegaBlaster2 without the hardware?

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

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