HardLabs

Smallreplacement

c0pperdragon·C64-Video-Enhancement·smallreplacement/smallreplacement.kicad_pcb

Smallreplacement PCB layout, top view — open source FPGA board by c0pperdragon

About the Smallreplacement PCB

Smallreplacement is an open source FPGA PCB design by c0pperdragon, published on GitHub under the MIT license. It is a 2-layer board measuring 43.8 × 60.3 mm, with 88 components from 26 distinct parts.

Its main chip is the 10M02SCE144, from the FPGA family. By type, the board carries 39 resistors, 33 capacitors, 3 inductors, 1 IC, 1 connector and 1 switch.

It belongs with the retro computing designs in this gallery.

From the project

Component video modification for the C64 8-bit computer

I made a smaller variant of the RF replacement board that can be used in C128 machines as well as in the C64C. By not supporting the "long" C64 boards with their 12V VIC, this FPGA board could be made as small as the smaller variant of the RF modulator and this should now also fit where the original board was too large.

Main components on the Smallreplacement

10M02SCE144

Smallreplacement bill of materials (BOM)

88 components, 26 distinct parts.

QtyPartRefs
1
10M02SCE144
U2
1
AudioJack4_Ground
J1
2
THS7316
AMP1, AMP2
1
Conn_01x02
GND5
1
Conn_02x10_Odd_Even
GPIO1
1
Conn_02x05_Odd_Even
JTAG1
1
LFSPXO024957
OSC1
2
LM1117IMPX-3.3
REG1, REG2
2
Conn_01x04
RFCONC1, RFCONC2
1
SW_SP3T
SW1
3
10uH
L1, L2, L3
7
10uF
C1, C2, C3, C4, C5, C9, C30
26
100nF
C6, C7, C10, C11, C12, C13, C14, C15 +18
1
1k1
R1
4
1k
R2, R7, R12, R31
3
2k
R3, R8, R13
3
4k
R4, R9, R14
3
8k
R5, R10, R15
3
16k
R6, R11, R16
3
150
R17, R18, R19
Show 6 more
QtyPartRefs
7
10k
R20, R21, R22, R23, R24, R25, R26
6
75
R27, R28, R29, R33, R34, R35
1
3k3
R30
1
2k2
R32
2
330
R37, R40
2
680
R38, R39

Smallreplacement design files

The KiCad project lives in the c0pperdragon/C64-Video-Enhancement repository on GitHub; these links point at the commit this page was built from.

Smallreplacement: common questions

What microcontroller does the Smallreplacement use?

The Smallreplacement is built around the 10M02SCE144, from the FPGA family.

How big is the Smallreplacement PCB?

The Smallreplacement measures 43.8 × 60.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Smallreplacement?

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

Where can I download the Smallreplacement design files?

From the c0pperdragon/C64-Video-Enhancement repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Smallreplacement design in my own project?

Yes, under the terms of its MIT license, which c0pperdragon chose for the repository.

Can I test firmware for the Smallreplacement without the hardware?

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

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