Search found 301 matches

by simon
Sun Oct 21, 2012 3:40 pm
Forum: Hardware
Topic: New hardware revision?
Replies: 95
Views: 268757

Re: New hardware revision?

Oh, now I did. :) This is very interesting. Maybe we could use free pins of the Atmega8 for this, even this connection is not as fast as it could be. It would need a converter from 3.3V to 5V via resistors or dedicated chips. About the RAM.. SDRAMS controllers are more complex compared to EDO RAM co...
by simon
Sat Oct 20, 2012 9:21 am
Forum: Programming
Topic: Chess game
Replies: 6
Views: 52063

Re: Chess game

I looked into porting SDL as well as a curses library. As there are versions of curses which support SDL it might be the best to port the latter first. I suppose porting SDL is not as easy as porting newlib. I could not even find a guide of which functions are needed to port. Anyway the video access...
by simon
Sat Oct 20, 2012 9:05 am
Forum: Hardware
Topic: New hardware revision?
Replies: 95
Views: 268757

Re: New hardware revision?

The ATMega8 is only used to avoid bit banging of the two PS/2 ports not for accessing SD cards.

This are good news about the 68030. So we can keep going with a single (Flash) Eprom to boot and can wipe the buffer interface. :)

Simon
by simon
Thu Oct 18, 2012 12:55 pm
Forum: Hardware
Topic: Case?
Replies: 35
Views: 279147

Re: Case?

Yesterday I ordered some parts - including another two of these cases. Hopefully I can borrow a mechanical fret saw next week. Then I will proceed. :) And here again: We would benefit from a standard sized PCB. The only thing I don't like: Our nice self built computer would look like an ordinary PC....
by simon
Thu Oct 18, 2012 12:47 pm
Forum: Hardware
Topic: Power supply
Replies: 18
Views: 54850

Re: Power supply

:) Standard ATX supplies are a very good option as they are very cheap. If we would go with a standard format PCB, we would solve this issue as well as the case question. :) Yesterday I ordered some parts to build an LC-filter. When I test this, I will test an ATX supply (without extra filter circui...
by simon
Thu Oct 18, 2012 12:38 pm
Forum: Hardware
Topic: New hardware revision?
Replies: 95
Views: 268757

Re: New hardware revision?

Lee, great to see you here! Welcome! :) Drop the floppy, SD card support would be more usefull. This would definately give some more space and drop issues I had with the FDC circuit. I never looked at the specs for SD cards. What communication protocol do they use? Replace the EPROM with FLASH. That...
by simon
Thu Oct 18, 2012 12:13 pm
Forum: Programming
Topic: Chess game
Replies: 6
Views: 52063

Re: Chess game

Yes, I thought about games from these platforms. I guess the 68k is not fast enough to emulate these computers. And I like to use Kiwi's capabilities like stereo sound and colorful graphics. As there is a GCC toolchain already I would probably go the way to port existing (Linux) games. I don't know ...
by simon
Mon Oct 15, 2012 2:33 pm
Forum: Programming
Topic: Chess game
Replies: 6
Views: 52063

Chess game

Hi,

there is a working port of Tom Kerrigan's Simple Chess Program (TSCP) now. Input and output are text-only. I will write a neat graphical frontend later.

Simon
by simon
Sun Oct 14, 2012 10:34 am
Forum: Hardware
Topic: Case?
Replies: 35
Views: 279147

Re: Case?

Hehe, acetone smells like nail varnish remover, thus no neighbor would suspect me doing something. :mrgreen: :roll: But you are right, if I would build a cannon this would definately freak out my neighbors. :lol: Even though I live a bit more countryside with a forest beyond the backyard. :) Well, I...
by simon
Fri Oct 12, 2012 9:39 am
Forum: Hardware
Topic: Case?
Replies: 35
Views: 279147

Re: Case?

After some web-research I like to try out ABS plastic molding by using hot-air and acetone. Hopefully our local DIY store has everything I will need. Let me think: ⋅ (ABS) platic plates ⋅ Hot-Air blower ⋅ Acetone ⋅ Small (inlaying) saw ⋅ Sandpaper An...