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- Path: isc-newsserver.isc.rit.edu!wwt5491
- From: wwt5491@osfmail.isc.rit.edu (TONER)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Microbotics VXL30 memory mapping
- Date: 26 Mar 1996 16:13:59 GMT
- Organization: Rochester Institute of Technology, Rochester, NY
- Message-ID: <4j9547$u7t@news.isc.rit.edu>
- References: <948.6652T1386T2066@norconnect.no> <4j44j8$1tg@jms.jeton.or.jp>
- NNTP-Posting-Host: grace.isc.rit.edu
-
- In article <4j44j8$1tg@jms.jeton.or.jp>, Shigeru Noro <noro@jeton.or.jp> wrote:
- >
- >Vidar S$BÅS(Bensen <vidar@norconnect.no> on 22-Mar-96 wrote:
- >>I have a VXL30 Accelerator with 8 Meg 32 bit Ram card in my A500..
- >>VXL30 should allow copying The Amiga Kick Start Rom to Ram by using FASTROM
- >>command. However, this results in following message:
- >
- >> - Memory cannot be allocated for FASTROM option -
- >
- >>My 8 Meg 32 bit Ram card is mapped low (at address 0020 0000).
- >>If I map it high FASTROM works ok but the DMA function of my A590 controller
- >>cannot access memory from 0800 0000 and up, unless I change the mask value
- >>to 0X00FFFFFC which I have not yet tried.
- >
- >>All 16 bit FASTRAM is removed.
- >>ChipRam=1 Meg.
- >>The VXL documentation does not mention that FASTROM will not work when 32
- >>bit Ram is mapped low.
- >
- >>I will appreciate feedback from someone having knowledge about
- >>my problem.
- >
- >
- >Hello, Vidar and your friend,
- >
- >What does it mean that the DMA function of your A590 controller cannot
- >access memory from 0800 0000 and up? You mean you cannot join 32 bit
- >ram to 16 bit ram, don't you? If so, of course, you should map 32 bit
- >ram high. And try to put following commands on your user-startup file.
- >
- >SetVXL AddMem NoInter
- >SetVXL FastROM NoInter
- >
- >I have used this product on my A500 with the GVP's A500-HD+ for two years
- >over. 8 Mb 16 bit ram + 8 Mb 32 bit ram + 2 Mb Megachip. No problem.
- >And I am getting access here by using this A500.
-
- I have done something similar to this before. I had my A500 with
- ICD Trifecta and a 1Gig Barracuda with the VXL. I only have 2M RAM.
- I copied the 3.1 ROM I had to a file and used Mkick from the 1.3 ROM
- on the motherboard. I did not use the addmem in setvxl, I used a
- stand-alone addmem. (On aminet? My roommate set it up...) I loaded
- the ram-32 high at 800000. I only addmem'ed the lower 1.5M on the
- board. Before this addmem line, Mkick was told to load the ROM
- image to the highest half-meg on the vxl. It worked great. Now I am
- installing the vxl on an A2000, and everything's messed up. Problem is
- I have an A2090A controller that doesn't like my gig. (As an aside,
- has anyone posted a review of the DKB rapidfire anywhere??) I no longer
- have the exact command lines, but should be able to get them from my
- roommate if anyone wants... If you are using a different rom than 1.3,
- skick should be able to do the same thing as mkick...
-
- Bill Toner II
- 3d year Computer Engineering student at RIT
- Vice-President of ACURIT, Amiga Computer Users of RIT
-
-