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C64 BlinkenDiag

tebl·C64-BlinkenDiag·C64 BlinkenDiag/C64 BlinkenDiag.kicad_pcb

C64 BlinkenDiag PCB layout, top view — open source board by tebl

About the C64 BlinkenDiag PCB

C64 BlinkenDiag is an open source PCB design by tebl, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 99.4 × 100 mm, with 64 components from 50 distinct parts.

Other key parts include the 28C256, 74HCT540, 74HCT573 and module. By type, the board carries 32 diodes, 6 capacitors, 6 resistors, 5 ICs, 5 modules and 4 jumpers.

It belongs with the retro computing designs in this gallery.

From the project

A version of the DIAG64cart, this mainly changes components for the ones I've already got and adds a lot of LEDs. It's a blinkenlight project for diagnostic usage.

- 1> Building the unit - 1.1> Soldering it together - 1.2> Assembling the unit - 1.3> Testing it out - 2> Schematic - 3> BOM

Add the capacitors that are next to the sockets, these are only for decoupling and are not of the kind that is polarized - personally I tend to solder them in so that, if possible, you can see the printing on the side. The electrolytic capacitor on the bottom left corner, but we need to check that we have a component that will fit first - the faceplate will sit 8mm above the main PCB. If you have one that won't fit, you can lay it on its side instead of waiting for the…

C64 BlinkenDiag, from the project README
From the project README

Main components on the C64 BlinkenDiag

28C25674HCT54074HCT573module

C64 BlinkenDiag bill of materials (BOM)

64 components, 50 distinct parts.

QtyPartRefs
1
28C256
U1
1
74HCT540
U2
3
74HCT573
U3, U4, U5
1
module
A1
4
Mounting
M1, M2, M3, M4
1
C64-Exp-Port
J1
1
VOLTMETER
J2
1
EN_SIGNAL
JP1
1
EN_DATA
JP2
2
EN_ADDR
JP3, JP4
1
ROM_DIS
SW1
1
FUNCTION
SW2
1
ROM_BANK
SW3
1
RESET
SW4
1
RESET
D1
1
GAME
D2
1
EXROM
D3
1
IO2
D4
1
IO1
D5
1
WRITE
D6
Show 30 more
QtyPartRefs
1
IRQ
D7
1
NMI
D8
1
D7
D9
1
D6
D10
1
D5
D11
1
D4
D12
1
D3
D13
1
D2
D14
1
D1
D15
1
D0
D16
1
A15
D17
1
A14
D18
1
A13
D19
1
A12
D20
1
A11
D21
1
A10
D22
1
A9
D23
1
A8
D24
1
A7
D25
1
A6
D26
1
A5
D27
1
A4
D28
1
A3
D29
1
A2
D30
1
A1
D31
1
A0
D32
5
100nF
C1, C2, C3, C4, C5
1
10uF
C6
2
10k
R1, R2
4
330x8
RN1, RN2, RN3, RN4

C64 BlinkenDiag design files

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

C64 BlinkenDiag: common questions

How big is the C64 BlinkenDiag PCB?

The C64 BlinkenDiag measures 99.4 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the C64 BlinkenDiag?

64 components, from 50 distinct parts. The full bill of materials is listed on this page.

Where can I download the C64 BlinkenDiag design files?

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

Can I use the C64 BlinkenDiag design in my own project?

Yes, under the terms of its CERN-OHL-1.2 license, which tebl chose for the repository.

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