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Offline bbond007Topic starter

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I'm making a new C= Machine.
« on: December 08, 2016, 04:07:04 AM »
Here is what I have so far. You'll notice i'm not destroying any classic hardware.

A new c64c case from original mold. --> http://www.ebay.com/itm/New-Vintage-Style-64C-Computer-Housing-Case-White-/332045168279

Raspberry Pi 3

NOS Commodore 16 keyboard from Radio Shack : #277-1027

Keyrah V2 by Individual Computer (in the mail from Vesalia ) --> http://wiki.icomp.de/wiki/Keyrah_V2

SidPi (which I'l need to build) --> https://oshpark.com/shared_projects/vRw7mWuD

unfortunately my SID chip is an 8580

so far... I've cut a square of lexan (plexiglass) to match the footprint of the original c64 MB, but I think I'll have to trim a little away to fit the Keyrah when it arrives.

I'm also waiting for HDMI and USB extensions to arrive (from China) before I really have an idea to the layout.

What do you think? Any ideas?
« Last Edit: December 08, 2016, 04:19:15 AM by bbond007 »
 

Offline polyp2000

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Re: I'm making a new C= Machine.
« Reply #1 on: December 08, 2016, 08:37:49 AM »
Quote from: bbond007;817444
Here is what I have so far. You'll notice i'm not destroying any classic hardware.

A new c64c case from original mold. --> http://www.ebay.com/itm/New-Vintage-Style-64C-Computer-Housing-Case-White-/332045168279

Raspberry Pi 3

NOS Commodore 16 keyboard from Radio Shack : #277-1027

Keyrah V2 by Individual Computer (in the mail from Vesalia ) --> http://wiki.icomp.de/wiki/Keyrah_V2

SidPi (which I'l need to build) --> https://oshpark.com/shared_projects/vRw7mWuD

unfortunately my SID chip is an 8580

so far... I've cut a square of lexan (plexiglass) to match the footprint of the original c64 MB, but I think I'll have to trim a little away to fit the Keyrah when it arrives.

I'm also waiting for HDMI and USB extensions to arrive (from China) before I really have an idea to the layout.

What do you think? Any ideas?


Im doing the same . I havent sourced a case yet , shipping from that place in Texas to the UK was ludicrous. But i have some key caps on order. Nice that you have managed to a NOS keyboard though!

Im thinking of doing a Cherry MX mod to mine as the keyboard on my is a bit patchy at the best of times. Instead of a RPi im using a C64 Reloaded board - which works quite nicely.

Nick

Offline kolla

Re: I'm making a new C= Machine.
« Reply #2 on: December 08, 2016, 10:05:58 AM »
This is very cool :)
I was not aware that the keyboards are so readily available.
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Offline XDelusion

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Re: I'm making a new C= Machine.
« Reply #3 on: December 08, 2016, 10:07:33 AM »
So what happens when the SID is connected to the Pi?
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Offline Iggy

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Re: I'm making a new C= Machine.
« Reply #4 on: December 08, 2016, 01:54:52 PM »
Pretty cool idea.
I like the idea of enclosing the Pi in a C64 case and attaching a SID to it.
I might have to replicate this, even if I don't use it for Commodore emulation.
It would make a nice system.
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Offline bbond007Topic starter

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Re: I'm making a new C= Machine.
« Reply #5 on: December 08, 2016, 07:22:38 PM »
Quote from: polyp2000;817450
Im doing the same . I havent sourced a case yet , shipping from that place in Texas to the UK was ludicrous. But i have some key caps on order. Nice that you have managed to a NOS keyboard though!

Im thinking of doing a Cherry MX mod to mine as the keyboard on my is a bit patchy at the best of times. Instead of a RPi im using a C64 Reloaded board - which works quite nicely.

Nick

It's a shame the shipping excessive. The case is really nice at a very reasonable price. It even included some custom stickers.

I like C= 16 KB has distinct cursor keys unlike the C= 64 KB.

I forgot about the manual shift-lock. I like that too...

Quote from: Iggy;817459
Pretty cool idea.
I like the idea of enclosing the Pi in a C64 case and attaching a SID to it.
I might have to replicate this, even if I don't use it for Commodore emulation.
It would make a nice system.

I'll probably run RetroPie image and use it more for the emulation of other things as well as Kodi player.

Quote from: XDelusion;817452
So what happens when the SID is connected to the Pi?


hopefully you'll have a working "/dev/sid" and this result:

https://www.youtube.com/watch?v=plyVYZ6XPwQ

This is probably the biggest challenge for the entire project because the SidPI is based around the 6581 SID and I have the newer 8580 chip...

The main differences of the two SID chip types:
SID 6581 needs 12 V DC voltage and two 470 pF filter capacitors
SID 8580 needs 9 V DC voltage and two 2,2 nF filter capacitors
(http://personal.inet.fi/musiikki/jtpartanen/commodorestuff/6581to8580/index.html)

I'll probably have to have ask someone that knows more about SID chips help me out...

form example this confuses me, the schematic here -->https://raw.githubusercontent.com/papawattu/SidPi/master/schematic/sidpi.png shows the filters already as 2,2 nF which I would think would be correct for the 8580 but the documentation suggests he is using a 6581.
« Last Edit: December 08, 2016, 09:35:12 PM by bbond007 »
 

Offline Rob

Re: I'm making a new C= Machine.
« Reply #6 on: December 08, 2016, 09:09:50 PM »
Quote from: bbond007;817465
It's a shame the shipping excessive. The case is really nice at a very reasonable price. It even included some custom stickers.

I like C= 16 KB has distinct cursor keys unlike the C= 64 KB.

I forgot about the manual shift-lock. I like that too...



I'll probably run RetroPie image and use it more for the emulation of other things as well as Kodi player.

 

hopefully you'll have a working "/proc/devices/sidpi" and this result:

https://www.youtube.com/watch?v=plyVYZ6XPwQ

This is probably the biggest challenge for the entire project because the SidPI is based around the 6581 SID and I have the newer 8580 chip...

The main differences of the two SID chip types:
SID 6581 needs 12 V DC voltage and two 470 pF filter capacitors
SID 8580 needs 9 V DC voltage and two 2,2 nF filter capacitors
(http://personal.inet.fi/musiikki/jtpartanen/commodorestuff/6581to8580/index.html)

I'll probably have to have ask someone that knows more about SID chips help me out...

form example this confuses me, the schematic here -->https://raw.githubusercontent.com/papawattu/SidPi/master/schematic/sidpi.png shows the filters already as 2,2 nF which I would think would be correct for the 8580 but the documentation suggests he is using a 6581.


It might be worth contacting Colin Piggott.  He makes a SID interface for the Sam Coupé and can tailor it for either a 6581 or an 8580 so he'll definitely know which value caps you need for which version.

http://www.samcoupe.com/contact.htm
 

Offline bbond007Topic starter

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Re: I'm making a new C= Machine.
« Reply #7 on: December 09, 2016, 04:13:56 AM »
Quote from: Rob;817474
It might be worth contacting Colin Piggott.  He makes a SID interface for the Sam Coupé and can tailor it for either a 6581 or an 8580 so he'll definitely know which value caps you need for which version.

http://www.samcoupe.com/contact.htm


Thanks for suggesting him as a resource for the SID, never heard of the (very interesting) Sam Coupé computer before now :)

I contacted the author of the SidPi with a few questions. Hopefully he shoots me a response.

I mean to do this thing up right, I should do DUAL SIDs in stereo.... more of a c65 clone...
 

Offline bbond007Topic starter

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Re: I'm making a new C= Machine.
« Reply #8 on: December 13, 2016, 03:39:03 AM »
The Keyrah V2 came in today...

Using it now to test with with my "Mac" and it's working but a lot of keys are screwed up as what is printed on the key vs outcome. But I guess it's more designed for touch typist...

Its working properly according to http://wiki.icomp.de/wiki/Keyrah_V2

The keyboard has a nice feel though :)

I see the Keyrah wires the joysticks in as keyboard. Just like the old days when someone starts messing with your joystick on the C= 64 and it destroys what you are typing! 2486248624862486248624862486248624862482824842842842842824824626248624865555555555555....forgot about that!
« Last Edit: December 13, 2016, 03:52:48 AM by bbond007 »
 

Offline -BobW-

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Re: I'm making a new C= Machine.
« Reply #9 on: December 13, 2016, 03:18:15 PM »
I used to work at Radio Shack back in the late 80's / early 90's.  I'm still kicking myself for not picking up one of those keyboards.  We had a couple in stock that never sold.

I see them show up on ebay every now and then.
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Offline bbond007Topic starter

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Re: I'm making a new C= Machine.
« Reply #10 on: January 14, 2017, 03:17:07 AM »
Here is a little update on this project.

I was having regret over not buying the transparent case, so I decided to get one of those as well. I everything is mounted to my plexiglass "motherboard", so its easy for me to switch the cases out anyway :)

I have not started messing with the SID chip yet...
« Last Edit: January 14, 2017, 03:19:40 AM by bbond007 »
 

Offline trekiej

Re: I'm making a new C= Machine.
« Reply #11 on: January 14, 2017, 03:44:49 AM »
Looks great.
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Offline darkage

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Re: I'm making a new C= Machine.
« Reply #12 on: January 22, 2017, 04:55:50 AM »
very nice and impressive!