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Random quick design...

Posted: Wed Mar 14, 2018 6:21 am
by Dave
I did an IDE interface for the Sam Coupe.
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I'll add a couple of this PCB to my next PCB order.

Re: Random quick design...

Posted: Wed Mar 14, 2018 10:29 am
by dilwyn
Take it this will be called Scubide then - can't have Q's in Sam Coupe stuff.

Re: Random quick design...

Posted: Wed Mar 14, 2018 3:21 pm
by Dave
It's 90% an existing Sam Coupe design, and 10% QubIDE improvements. It's based off the Atom interface, so I called it "Atomic"...

There is an "Atom Lite" interface out there, but it's 8 bits only, just for CF cards and the like. It's quite slow.

I was asked if I could do an improved copy of the Trinity SD/ethernet card. I won't. It's under active development, and I do not want to work on compatible hardware for something he has gone to all that trouble to develop. I'm not crashing his party.

If I can develop a quick serial port based off a standard UART for it, I'll create an ESP32 card.

Re: Random quick design...

Posted: Sat Mar 17, 2018 10:38 pm
by XorA
http://www.worldofsam.org/node/191

Im sure your already aware SAM has Comms Interface. So if you wanted existing software to just work (tm).

Although I still need to hack mine to fix the PSU issues.

Re: Random quick design...

Posted: Sun Mar 18, 2018 9:15 am
by Derek_Stewart
Hi,

I had many Sam Coupes over the years, much better than the Spectrum.

I would not mind having another one, but they attract very high sale prices now.

I see the circuit diagram has been drawn, many the way I get a Sam is to make one, or use an emulator.

Re: Random quick design...

Posted: Sun Mar 18, 2018 3:01 pm
by Dave
It has a VLSI chip that cannot be reproduced :(

Re: Random quick design...

Posted: Sun Mar 18, 2018 8:34 pm
by XorA
Dave wrote:It has a VLSI chip that cannot be reproduced :(
But there are equations for it for FPGA!

Re: Random quick design...

Posted: Sun Mar 18, 2018 10:48 pm
by Dave
I didn't know that. So yes, it can be done. If there's equations for an FPGA, maybe they can use a MUCH faster Z380?

Re: Random quick design...

Posted: Mon Mar 19, 2018 8:40 pm
by XorA
Dave wrote:I didn't know that. So yes, it can be done. If there's equations for an FPGA, maybe they can use a MUCH faster Z380?
hmm i cannot find the posting, i could be mistaken :-(

Re: Random quick design...

Posted: Fri Mar 23, 2018 8:36 pm
by wayne weedon
Derek_Stewart wrote:Hi,

I had many Sam Coupes over the years, much better than the Spectrum.

I would not mind having another one, but they attract very high sale prices now.

I see the circuit diagram has been drawn, many the way I get a Sam is to make one, or use an emulator.
Still have mine Derek, bought it at a developers price from MGT in about 1989. We did some good work with that machine. I liked it a lot.

The MIST can run as a SAM Coupe apparently.