03 December 2013, 10:12 | #41 |
electricky.
Join Date: Jun 2010
Location: out in the wild
Posts: 1,256
|
One little detail is omitted, and that's the E-Clock syncronization which is required for talking to the CIA chips. This feature has also been removed for all 68020 and higher processors, so it's already common knowledge how to add it into the accelerator for the Amiga. Nothing to worry about - if I would not implement this properly, the unit wouldn't start at all :-).
The 68EC000 is 100% software compatible with the NMOS version of the 68000 down to the last cycle. I'd say it's OK to refer to it as 68000, as it's only the silicon level that's different; the behaviour - even on the memory bus - is identical with the chip that has powered our A500's all these years. ...which is correct, because the exact type number MC68EC000FN10 has nothing to do with the 68010. It's a 10MHz CMOS version of the CPU, which is overclocked to 14MHz. The overclocking is clearly shown in the Vesalia description, because I asked them to do so. I prefer to be honest, I don't want anyone complaining about "hey, my CPU is overclocked!". Save your time. None of the Blizzard designs with 68040 or higher works on the 16-bit interface of the ACA500. I've made the mistake of announcing the 4MB version for an added 40,- EUR. I can't make it for that price, so I decided to skip on the 4MB version. There's only one version, and that has 2MBytes physical memory. The latest verion of WHDload has some elaborate method of allocating memory, so more games work with pre-load, despite some memory fragmentation. The current Vesalia description reflects this change. Jens |
03 December 2013, 15:43 | #42 | |
Registered User
Join Date: Oct 2007
Location: Toronto, Canada
Posts: 1,593
|
Quote:
|
|
03 December 2013, 17:23 | #43 |
Posts: n/a
|
Somewhere I read that the first batch of ACA-1220 need some kind of hardware fix i order to work with the ACA-500. Does anyone (Jens?) know if this is (still) the case?
|
03 December 2013, 19:30 | #44 | |
electricky.
Join Date: Jun 2010
Location: out in the wild
Posts: 1,256
|
Quote:
If you card was bought before september 5th, it *will* require the update. If it was bought sometime later in september, it *may* require the update, and it's pretty safe to say that if you've bought your card in october 2013 or later, it doesn't require an update. The update is free if you buy the ACA500 directly from me. Contact me through the web form on icomp.de in that case. Jens |
|
03 December 2013, 22:22 | #45 |
Posts: n/a
|
Thanks, Jens! The card is bought in late October 2012, so the update *is* required. I will soon contact you through the web form on icomp.de.
|
04 December 2013, 15:29 | #46 |
Registered User
Join Date: Aug 2004
Location: www.amigakit.com
Posts: 2,015
|
ACA 500 accelerator is now added to AmigaKit.com webstores:
UK Product Link: http://amigakit.leamancomputing.com/...oducts_id=1168 Europe Product Link: http://amigakit.leamancomputing.com/...oducts_id=1168 US Product Link: http://www.amigakit.us/product_info....oducts_id=1168 Canadian Product Link: http://amigakit.leamancomputing.com/...oducts_id=1168 |
04 December 2013, 21:17 | #47 |
Amigaholic
Join Date: Dec 2009
Location: UK
Posts: 4,676
|
Will anyone be making a case for this to go in?
If you plug an ACA12xx into it as well then that's a lot of exposed board just waiting to get 'accidentally' damaged!! |
04 December 2013, 21:35 | #48 |
Global Moderator
Join Date: Aug 2008
Location: Sidcup, England
Posts: 10,300
|
There have been various proposals. To find some examples, search this thread for the word "case":
New products for C64 and Amiga from Individual Computers |
04 December 2013, 22:04 | #49 |
BlizzardPPC'less
|
Excellent news!
|
05 December 2013, 02:30 | #50 |
Zone Friend
Join Date: Jan 2006
Location: Aussie
Posts: 1,144
|
Compatible addons...
Amiga Kit says ACA 1220 and ACA 1232 Vesalia lists additionally ACA 1231 I have a 1230/28, is that supported? |
05 December 2013, 07:49 | #51 | |
electricky.
Join Date: Jun 2010
Location: out in the wild
Posts: 1,256
|
Quote:
I have successfully run all three versions of the ACA1230 on the ACA500, but this highly depends on a clean clock source from the A500 motherboard: I have only tried this with a Rev.8a board, which has a very clean signal quality. This may be different on older A500 revisions and with worse power supplies. In other words: It's worth a try, but I can't guarantee it. The ACA1230 series therefore has the same status as the B1230-IV: Works in the lab, but it's not guaranteed to work. Jens |
|
05 December 2013, 08:48 | #52 |
Registered User
Join Date: Oct 2012
Location: Surrey
Posts: 390
|
There is a guy on lemon 64 forum who just made stunning brushed steel case for Flyer modem. He's selling them for 50 USD. Somebody should contact him regarding aca500.
Last edited by prowler; 05 December 2013 at 20:49. Reason: Added quote. |
05 December 2013, 11:40 | #53 |
Registered User
Join Date: May 2013
Location: Bratislava / Slovakia
Age: 47
Posts: 241
|
What speed from the CF can we expect?
Last edited by JanciB; 05 December 2013 at 11:41. Reason: could -> can |
05 December 2013, 16:37 | #54 |
Amiga NetRunner
Join Date: Apr 2005
Location: Spain
Age: 45
Posts: 941
|
Are then 2mb of fast ram available?. I read on previous posts that the effective memory was 1,5mb. I'm interested anywayin the card, but would like to know that. Seems in this year, i will have a good christmas holidays...
|
05 December 2013, 16:42 | #55 | |
Thalion Webshrine
Join Date: Jan 2004
Location: Oxford
Posts: 14,331
|
Quote:
|
|
05 December 2013, 18:21 | #56 |
Registered User
Join Date: Nov 2010
Location: Sweden
Posts: 528
|
|
06 December 2013, 16:34 | #57 |
electricky.
Join Date: Jun 2010
Location: out in the wild
Posts: 1,256
|
Time to reveal the last feature of the ACA500 which wasn't published before. Drumroll...
The ChipMap feature ChipMap can map trapdoor memory as Chipram without having to open the computer, solder on jumpers etc. The following preconditions must apply: - ECS Agnus must be installed - exactly 512k trapdoor mem must be present (not more, not less) - exactly 512k chipram must be present If these conditions apply, the ACA500's minimal MMU can turn the computer into a 1MByte Chipram computer, completely without opening the machine. Most Rev.6 and higher boards have that config, so it'll improve WHDload compatibility even more. I will publish this firmware later this weekend. It will show if the feature is available, and let you select the chipmem size with a menu item in the expert menu. Jens |
06 December 2013, 16:41 | #58 |
MI clan prevails
Join Date: Jul 2010
Location: Belgrade, Serbia
Posts: 1,443
|
Wow, this is actually a pretty big thing. It will turn most A500 configs into 1MB CHIP + 1.5MB FAST without any hassle.
Also nice for an ultra-retro ultra-snappy 1.3 WB system. |
06 December 2013, 16:48 | #59 | |
electricky.
Join Date: Jun 2010
Location: out in the wild
Posts: 1,256
|
Quote:
Jens |
|
06 December 2013, 18:33 | #60 |
Amiga NetRunner
Join Date: Apr 2005
Location: Spain
Age: 45
Posts: 941
|
neat!
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Drakkhen update to tested | CFou! | project.WHDLoad | 2 | 10 May 2013 16:09 |
ACA500 - Who Will Sell This? | Smakar | support.Hardware | 6 | 01 March 2013 10:37 |
FS Tested SuperCPU 64, Quickbyte 2 EPROM programmer, 1581, Rex 9811 card, 68010 CPU | PPC | MarketPlace | 1 | 28 August 2011 11:49 |
Selling a tested DKB 1202 | webmany | MarketPlace | 0 | 15 August 2007 21:36 |
New Amiga mouse PS2 adapter - Anyone tested it? | J.Junior | support.Hardware | 9 | 31 December 2006 16:18 |
|
|