Q68 page

Nagging hardware related question? Post here!
User avatar
dilwyn
Mr QL
Posts: 1246
Joined: Wed Dec 01, 2010 10:39 pm
Location: Wales
Contact:

Q68 page

Postby dilwyn » Tue Nov 28, 2017 10:42 am

I've started a page for the Q68 on my site. At the moment (thanks to Peter Graf) it has the Q68 mainboard user's manual and a small utility for setting the realtime clock on a Q68. Further Q68 stuff will be added as and when becomes available.

http://www.dilwyn.me.uk/q68/index.html or the mirror at http://www.greybeardz.com/q68/index.html


Dilwyn
All things QL: see www.dilwyn.me.uk
User avatar
Zarchos
Trump Card
Posts: 152
Joined: Mon May 08, 2017 11:49 am

Re: Q68 page

Postby Zarchos » Tue Nov 28, 2017 1:54 pm

Thanks !
Great idea.


Owner of various QLs including accelerated beasts, and also a happy Q68 owner ;)
Now porting SOTB to the Archies, to then port it to the Q68.
https://www.youtube.com/user/Archimedes75009/search?query=Acorn+Archimedes+Shadow+Of+The+Beast+%28100%25
User avatar
Zarchos
Trump Card
Posts: 152
Joined: Mon May 08, 2017 11:49 am

Re: Q68 page

Postby Zarchos » Tue Nov 28, 2017 2:08 pm

Have read it and found the following typos :
CPU
The microprocessor inside the Q68 and is code compatible to the 68000,

ROM
The Q68 has a 96 KB ROM
(I believe it should be 'an 96')

This done by the Q68

'monocrome' or 'monochrome' in the text

'mainbord' instead of 'main board'

Please note : I write all this to help, because I admire the work behind designing this board, and in no way it is to express despise or whatever.
Sorry if the Latin (or maybe only French) way of talking / writing can appear too direct and frank, it is just the way we act here,
and in no way is meant to hurt feelings ; but to improve final products.
Xavier.


Owner of various QLs including accelerated beasts, and also a happy Q68 owner ;)
Now porting SOTB to the Archies, to then port it to the Q68.
https://www.youtube.com/user/Archimedes75009/search?query=Acorn+Archimedes+Shadow+Of+The+Beast+%28100%25
User avatar
Peter
Super Gold Card
Posts: 505
Joined: Sat Jan 22, 2011 8:47 am

Re: Q68 page

Postby Peter » Tue Nov 28, 2017 2:33 pm

Thanks, I saw even more typos, when re-reading after Dilywin uploaded it.


User avatar
Pr0f
Trump Card
Posts: 188
Joined: Thu Oct 12, 2017 9:54 am

Re: Q68 page

Postby Pr0f » Tue Nov 28, 2017 2:35 pm

I think a 96Kb is ok, rather than an, it's how it scans that's important, an followed by 9 or ninety doesn't scan.


User avatar
Zarchos
Trump Card
Posts: 152
Joined: Mon May 08, 2017 11:49 am

Re: Q68 page

Postby Zarchos » Tue Nov 28, 2017 3:09 pm

Pr0f wrote:I think a 96Kb is ok, rather than an, it's how it scans that's important, an followed by 9 or ninety doesn't scan.



And you are right, sorry for my mistake I had read it too quickly as 86, even though I wrote 96.

Great manual btw. Thanks for the time and efforts.
I eager to use this board and try to convert my 'generated code for sprites pseudo just in time generator.' to see how fast it will run on it.
(knowing I am sure I'll get great help for members here, and I want that to be a community project, everybody will be able to use the results, for free).

Countdown is now 42 hours or so before a major announcement that will also benefit the QL community ;-)
Stay tuned ;-)


Owner of various QLs including accelerated beasts, and also a happy Q68 owner ;)
Now porting SOTB to the Archies, to then port it to the Q68.
https://www.youtube.com/user/Archimedes75009/search?query=Acorn+Archimedes+Shadow+Of+The+Beast+%28100%25
User avatar
dilwyn
Mr QL
Posts: 1246
Joined: Wed Dec 01, 2010 10:39 pm
Location: Wales
Contact:

Re: Q68 page

Postby dilwyn » Tue Nov 28, 2017 5:00 pm

Peter wrote:Thanks, I saw even more typos, when re-reading after Dilywin uploaded it.

I, errr, confess to not having had time to even read it myself yet :oops:

A quick glance shows it to be to the high standard I expect from Peter :)

I fully intend to buy a Q68 later, but having no time at the moment I thought it best to wait until second batch before doing so.


Dilwyn
All things QL: see www.dilwyn.me.uk
User avatar
Peter
Super Gold Card
Posts: 505
Joined: Sat Jan 22, 2011 8:47 am

Re: Q68 page

Postby Peter » Tue Nov 28, 2017 7:40 pm

Thank you Dilwyn, and apologies for the typo in your name.

The need to write a manual is one of those terrible differences between "tinkering for myself" and "make it available for the public". I really don't like that kind of work, and it takes me longer than adequate. I hope for a compromise between "comprehensive enough to be useful" and "short enough to be read".


User avatar
Artificer
ROM Dongle
Posts: 5
Joined: Fri Nov 24, 2017 8:43 am

Re: Q68 page

Postby Artificer » Tue Nov 28, 2017 7:55 pm

The manual is great. Its release must increase the anticipation of the Q68 launch. BTW is there a way to over clock the Q68?


User avatar
Peter
Super Gold Card
Posts: 505
Joined: Sat Jan 22, 2011 8:47 am

Re: Q68 page

Postby Peter » Tue Nov 28, 2017 8:52 pm

Externally, one could change the 20 MHz oscillator, and internally one of the PLLs. But that would also result in wrong SER baudrate, wrong frame interrupt, wrong clock, bad ethernet bus timings etc.

A far more rewarding way to increase speed would be to add cache. Maybe I'll do that someday, but I can't promise. One can estimate how fast cache would be, by testing code in the small "Fast RAM".



Return to “Hardware”

Who is online

Users browsing this forum: No registered users and 3 guests