Thanks again to all that helped.
Regards.
Search found 10 matches
- Mon Feb 07, 2011 10:19 pm
- Forum: Hardware
- Topic: Using the /TIME line for more than bank switching?
- Replies: 13
- Views: 20336
- Sat Feb 05, 2011 2:18 am
- Forum: Hardware
- Topic: Using the /TIME line for more than bank switching?
- Replies: 13
- Views: 20336
Hi, please could you take a few minutes to look over the small schematic I made. The top shows a 8bit latch attached to D0..7, and by checking !LWR and !TIME via a NOR gate will latch the data bus on writes to $A130xx. Results then displayed on LEDs. The bottom shows 8 lines that are controlled via ...
- Thu Feb 03, 2011 11:14 pm
- Forum: Hardware
- Topic: Using the /TIME line for more than bank switching?
- Replies: 13
- Views: 20336
Thanks for your replies guys, much better understanding now. What about when I need to read from my 'device' I must need to somehow put that data onto the data lines. What considerations should I take? Maybe the megadrive or my game ROM is already asserting the data lines. Is there a valid sequence ...
- Wed Feb 02, 2011 11:34 pm
- Forum: Hardware
- Topic: Using the /TIME line for more than bank switching?
- Replies: 13
- Views: 20336
Using the /TIME line for more than bank switching?
Hi all, Probably a simple question. How are you guys making cartridges that take advantage of SD cards, USB ports, etc? Is it just the /TIME line or are other lines required too? I assume you are doing something along the lines of seeing what address is on the bus when the /TIME line is toggled then...
- Sat Jan 22, 2011 10:59 pm
- Forum: Hardware
- Topic: New devcart
- Replies: 34
- Views: 31047
- Fri Jan 21, 2011 5:48 pm
- Forum: Hardware
- Topic: New devcart
- Replies: 34
- Views: 31047
- Mon Nov 15, 2010 9:30 pm
- Forum: Demos
- Topic: Sonic The Hedgehog Open Source Project
- Replies: 8
- Views: 35470
Looks very nice, will be sure to give it a go soon.
Also should you not already be a member I recommend you also post this over at Sonic Retro.
Should easily get you the tech level membership there.
Regards.
Also should you not already be a member I recommend you also post this over at Sonic Retro.
Should easily get you the tech level membership there.
Regards.
- Wed Nov 03, 2010 12:10 pm
- Forum: Blabla
- Topic: Devcart wishlist?
- Replies: 42
- Views: 27186
2- on my PC, there was a conflict with my modem ... you could achieve full speed USB2 on ATxx and not with FTDI That shouldn't of happened if 'they' used a different VIP/PID, FTDI supply them free of charge to anyone using their chips. However Atmel only give them out to bigger projects, no guarant...
- Mon Nov 01, 2010 7:43 pm
- Forum: Blabla
- Topic: Devcart wishlist?
- Replies: 42
- Views: 27186
- Sun Oct 31, 2010 10:42 pm
- Forum: Hardware
- Topic: Megadrive pins while in reset
- Replies: 1
- Views: 4739
Megadrive pins while in reset
Hi all,
Does anybody know the state of the address, data and control lines of the megadrive while it is being held in reset (hard and/or soft).
I'm hoping they are tri-state but would like someone to confirm.
Regards.
Does anybody know the state of the address, data and control lines of the megadrive while it is being held in reset (hard and/or soft).
I'm hoping they are tri-state but would like someone to confirm.
Regards.