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RASPBERRY Pi1541 ZERO HAT

COMMODORE-64 DISK DRIVE EMULATOR



Hello,


This is a Pi1541 Hat for Rasberry Pi Zero, I built the circuit and tested it with a Raspberry Pi Zero, it works fine.


Pi1541 is a real-time, cycle exact, Commodore 1541 disk drive emulator. You can load and save commodore64 programs, D64 .PRG ... extensions games/software from a Micro SD card, it is an alternative to SD2iEC, please look at the Documentation link.


The source page link of this PCB drawing is below. (Option A)

https://cbm-pi1541.firebaseapp.com/


It should also work with other suitable Raspberry Pi models listed at the source page.


Oled display pin order is more compatible now with PCB rev v1.2


Do not forget: solder 2 x 20 pin female header before OLED display :)



Thanks to Stephen White



PS: If you need EPYX FASTLOAD CARTRIDGE, you can find it from this link.

https://www.pcbway.com/project/shareproject/C64_EPYX_FASTLOAD_CARTRIDGE_1.html




GERBERS CHANGED: PCB REV V1.2 (01.07.2020)


Two different position and pin order for Oled screen.

Both Oled screen GND and VCC connections can be Reversed, by cutting J1 - J2 and shorting J3 - J4

Better dimensions, more compatible to Raspberry PiZero




GERBERS CHANGED: PCB REV V1.2 (27.08.2020)


(Alternative power pins -PWR+ is corrected as +PWR-. Thanks to Jani)




3D Case designed by Cem Tezcan (Many thanks) (tested with first rev. PCB)

https://www.thingiverse.com/thing:4550955




In order to protect your electronical devices, always turn off your Commodore 64 before connecting or unconnecting any device.


Ps. While transfering data (reading or writing) from SD cards it should not be interrupted like power-off or Reset systems. Otherwise that may damage SD cards.


Have fun

Thank you.


Bill of materials used in this project

Raspberry Pi (Zero or models listed at the source page)
1
5 pcs. Right-Angle Tactile Push Button
5
4 channel. bidirectional logic level converter
1
6 pin Male DIN Connector
1
5V 3A power suply
1
0.96 inch Oled screen "VCC - GND - SCL - SDA" (optional)
1
2x20 pin female header
1
Apr 05,2020
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      Ben Jordan is a board level electronics and embedded systems design engineer. Always an avid tinkerer, Ben started with his first soldering iron at the age of 8, designing and etching his own PCBs soon after. Ben is an expert in EDA with Altium, Protel, CircuitMaker and CircuitStudio and has a Bachelor of Engineering (CompSys) Hon I. from the University of Southern Queensland, Australia. He is an IPC-CID+ certified PCB designer, and makes training videos for Altium Academy.
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