HardLabs

C64 & VIC20 Flash Programmer Dave Gaunt

dgaunt48·CBM_Flash_ROMs·FlashCartProgrammer/KiCad/FlashCartProgrammer.kicad_pcb

C64 & VIC20 Flash Programmer Dave Gaunt PCB layout, top view — open source RP2040/RP2350 board by dgaunt48

About the C64 & VIC20 Flash Programmer Dave Gaunt PCB

C64 & VIC20 Flash Programmer Dave Gaunt is an open source RP2040/RP2350 PCB design by dgaunt48, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 80 components from 31 distinct parts.

Its main chip is the RP2354B-QFN80, from the RP2040/RP2350 family. Other key parts include the TLV74311PDBVR, TLV74333PDBVR, W25Q16JVSSIQ, 74LS573 and TXS0108EPW. By type, the board carries 30 capacitors, 26 resistors, 11 connectors, 10 ICs, 1 crystal and 1 LED.

It belongs with the retro computing and usb & debug tools designs in this gallery.

From the project

Various Commodore Cartridge and ROM replacement stuff.

C64 & VIC20 Flash Programmer Dave Gaunt, from the project README
From the project README

Main components on the C64 & VIC20 Flash Programmer Dave Gaunt

TLV74311PDBVRTLV74333PDBVRW25Q16JVSSIQRP2354B-QFN8074LS573TXS0108EPW27C40074LS245

C64 & VIC20 Flash Programmer Dave Gaunt bill of materials (BOM)

80 components, 31 distinct parts.

QtyPartRefs
1
TLV74311PDBVR
U1
1
TLV74333PDBVR
U2
1
W25Q16JVSSIQ
U3
1
RP2354B-QFN80
U4
2
74LS573
U5, U6
2
TXS0108EPW
U7, U8
1
27C400
U10
1
74LS245
U18
1
12MHz
Y1
1
307-044-558-201
Vic20_Cartridge_Connector
J1
1
395-044-524-202
c64-Cartridge-Connector
J2
1
+5V
J3
1
USB_A_KeyBoard
J4
1
BOOT SEL
J5
1
DE15_Socket_HighDensity_MountingHoles
J6
1
DM3D-SF
J7
1
SWD
J8
1
C64
J9
1
Vic20
J10
1
ZIF
J11
Show 11 more
QtyPartRefs
1
POWER
Power1
1
B140-E3
D1
4
4.7uf
C1, C2, C18, C21
23
100nf
C3, C4, C5, C7, C8, C9, C10, C11 +15
1
470uf
C6
2
10pf
C22, C23
8
27R
R1, R2, R3, R4, R5, R7, R8, R9
2
1k
R6, R15
3
330R
R10, R12, R14
12
10k
R11, R16, R17, R18, R19, R20, R21, R22 +4
1
2k2
R13

C64 & VIC20 Flash Programmer Dave Gaunt design files

The KiCad project lives in the dgaunt48/CBM_Flash_ROMs repository on GitHub; these links point at the commit this page was built from.

C64 & VIC20 Flash Programmer Dave Gaunt: common questions

What microcontroller does the C64 & VIC20 Flash Programmer Dave Gaunt use?

The C64 & VIC20 Flash Programmer Dave Gaunt is built around the RP2354B-QFN80, from the RP2040/RP2350 family.

How big is the C64 & VIC20 Flash Programmer Dave Gaunt PCB?

The C64 & VIC20 Flash Programmer Dave Gaunt measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the C64 & VIC20 Flash Programmer Dave Gaunt?

80 components, from 31 distinct parts. The full bill of materials is listed on this page.

Where can I download the C64 & VIC20 Flash Programmer Dave Gaunt design files?

From the dgaunt48/CBM_Flash_ROMs repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the C64 & VIC20 Flash Programmer Dave Gaunt design in my own project?

The repository has no license, so all rights stay with dgaunt48. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the C64 & VIC20 Flash Programmer Dave Gaunt 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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