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by rga24
Tue May 03, 2016 12:19 pm
Forum: General discussion
Topic: SidPi project C64 sound chip (SID 6581) and the Pi's GPIO
Replies: 22
Views: 9645

Re: SidPi project C64 sound chip (SID 6581) and the Pi's GPI

Hi Jamie,

Just a quick question, I'm building a SidPi board now and I want to source some of the same connectors you designed the board around.

Which exact parts are SK1, CN1 and J2, the Raspberry Pi GPIO header, power supply connector and audio output socket? - and where did you buy them?

Richard
by rga24
Mon Jul 14, 2014 2:49 pm
Forum: General discussion
Topic: SidPi project C64 sound chip (SID 6581) and the Pi's GPIO
Replies: 22
Views: 9645

Re: SidPi project C64 sound chip (SID 6581) and the Pi's GPI

This is the kind of thing I'd like to do with the Raspberry Pi. At the moment the software in these videos runs on an old PC with ISA slots and a HardSID card. https://www.youtube.com/watch?v=RWTjJeDuvqs https://www.youtube.com/watch?v=LQt6j_p3O8U But running the software on a Raspberry Pi instead w...
by rga24
Thu Jun 12, 2014 3:51 pm
Forum: General discussion
Topic: SidPi project C64 sound chip (SID 6581) and the Pi's GPIO
Replies: 22
Views: 9645

Re: SidPi project C64 sound chip (SID 6581) and the Pi's GPI

One consideration is what power supply to use for the SID board. It would be great if it used the same power supply as the Raspberry Pi itself, with a step-up converter to generate 12V or 9V (depending on SID type) and a pass through for the Raspberry Pi itself. Or it could be powered off 12V or 9V ...
by rga24
Thu Jun 12, 2014 3:45 pm
Forum: General discussion
Topic: SidPi project C64 sound chip (SID 6581) and the Pi's GPIO
Replies: 22
Views: 9645

Re: SidPi project C64 sound chip (SID 6581) and the Pi's GPI

OK, I've cloned the repository on GitHub, will modify the schematic file in Eagle and produce a new PCB for your consideration.
by rga24
Thu Jun 12, 2014 11:52 am
Forum: General discussion
Topic: SidPi project C64 sound chip (SID 6581) and the Pi's GPIO
Replies: 22
Views: 9645

Re: SidPi project C64 sound chip (SID 6581) and the Pi's GPI

Hello papawattu / Oldbitcollector, As soon as you have these boards made up I will buy a few of them. For the audio amplifier circuit, you can copy the one in the C64 / C64C / C128. It's an emitter follower with a bit of filtering. It's the circuit connected between pin 27 of the SID and pin 3 of th...

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