Dual 6581 SID Emulator

A dual SID chip replacement for the commodore 64 using teensy 3.6

Petros Kokotis

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Description

This is a weekend project I had in mind for some time now. I used a teensy 3.6 and a couple of level shifting boards to intercept address and data lines of SID Chip.<br>On software side I used teensy audio library and ReSID by Frank Boesing as a sound engine.<br>Sound is dual-sid stereo using both dac pins of the teensy.<br>There are also plans for a led visual equalizer. You can find my source code on my github account.<br> I would like to thank:<br>Stephen White the creator of Pi1541 for this guidance and tips on how to proceed with this project.<br>And my friends at <a target="_blank" rel="noopener noreferrer" href="http://iamretro.gr">iamretro.gr</a> forum for providing me with enough information of how the chip works and especially users GeoAnas and DAT-ALEX.

Components

1 × LM7805 Power Management ICs / Linear Voltage Regulators and LDOs
1 × 0.33uf capacitor
1 × 0.1uf capacitor
1 × Teensy 3.6 Teensy Microcontroller
2 × Voltage Level Shifting board bi-directional 8 port

Project Logs

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Finished pcb
Petros Kokotis • 09/22/2019 at 17:54 • 0 comments
Gerbers uploaded to github
Petros Kokotis • 08/31/2019 at 17:39 • 0 comments

Finally after almost a year I uploaded schematics and gerbers to github.
Here is a video of my modded c64 using teensy sid emulator in pseudo stereo mode plus some led eye candy.
Prototype board
Petros Kokotis • 08/10/2018 at 19:52 • 0 comments

This is my homemade pcb of the project. I am going to upload schematics on github in the next couple of days and finished pcb files in a week or so..
DUAL SID SUPPORT AT $D420
Petros Kokotis • 07/23/2018 at 09:39 • 0 comments

We got dual-SID !!! Sources to be updated soon.......
Working prototype
Petros Kokotis • 07/23/2018 at 07:49 • 0 comments
First Attempt
Petros Kokotis • 07/23/2018 at 07:48 • 0 comments

Here Is my first attempt

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Build Instructions

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1

Building instructions

All the instructions you need to recreate this project are included inside the arduino sketch. Its just connecting lines to pins.
I will create a schematic to upload to github asap.

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