IntroductionThe chip MOS6581 also known as the Sound Interface Device ( SID)
of the Commodore 64 computer is known for it's characteristic sound.
Unfortunately, many of these devices produced between 1982 and 1993 reach the end of their life span these days. It is getting harder to get a replacement part. Thus, we need a proper substitute. And this is
what the FPGASID project is all about! It has been started to overcome with this situation and
reaches even higher - it aims for a better SID than any SID has ever been
before... The Mission- Create a pin compatible drop-in replacement for the MOS6581 device as well as for its successor, the MOS8580.
The Targets- To-the-cycle exact reproduction of all digital parts including sound and envelope generation and paddle readouts.
- Exact modeling of the analog parts leading to a result that is almost indistinguishable from the original.
- Making it configurable to easily switch between various SID variants
- Adding extra features like wavetables, stereo sound, more voices etc while keeping full compatibility.
The Means - Use of FPGA technology. It is more suitable than software related emulation.
The Result- This is what came out so far:
FPGASID is available for purchase
Please access the Kryoflux webstore to place your order:
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Project Updates
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THE OTHER DAYS show and tell
The french chiptune duo THE OTHER DAYS has released a 3h+ video chatting about their huge chiptune setup.FPGASID is taking quite some room in their presentation! The video
language ...
Posted Mar 1, 2021, 2:52 AM by andi6510 The FPGASID Project
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How to use the breakout cable
Some time ago, triggered by a user question, I have prepared a document
with some examples on how to use the breakout cable. Today I found this
document again and ...
Posted Jan 3, 2021, 2:51 AM by andi6510 The FPGASID Project
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The Sky is the Limit
In the spring of 2019, an FPGASID boarded a balloon mission into the stratosphere! This video shows how it came about and what kind of adventure FPGASID experienced:(deutsche Version ...
Posted Sep 20, 2019, 1:31 PM by andi6510 The FPGASID Project
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BREADAMP - The amazing C64 Sample player!
Here is something I want to share with you:BREADAMP is a C64 sample player that comes with full featured functionality. It can play various (proprietary) sample formats directly from ...
Posted Aug 18, 2019, 11:49 AM by andi6510 The FPGASID Project
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Working on Documentation
I have updated the register description document available under Documentation -> Technical Documents. I made the following changes:Some smaller error correctionsDescribe second role of identify bit (LED control)Describe ...
Posted Jul 28, 2019, 3:33 AM by andi6510 The FPGASID Project
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New Firmware release
Today I release a new firmware revision 0.A for the FPGASID:Main changes:New 6581 bias setting range and curve. Per
default the bias is now tuned to a ...
Posted Feb 24, 2019, 8:25 AM by andi6510 The FPGASID Project
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Review of FPGASID
Click here to read a review of FPGASID:https://kompjut0r.blogspot.com/2019/01/fpgasid-vs-sid8580-vs-sid6581.html
Posted Jan 13, 2019, 7:53 AM by andi6510 The FPGASID Project
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