home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.sys.amiga.hardware
- Path: sparky!uunet!mcsun!sunic!kth.se!news.kth.se!orre
- From: orre@thalamus.sans.kth.se (Roland Orre)
- Subject: Re: RCS FF'040 + Trumpcard Pro
- In-Reply-To: tw5232@albnyvms.bitnet's message of Wed, 22 Jul 92 02:02:12 GMT
- Message-ID: <ORRE.92Jul23040647@thalamus.sans.kth.se>
- Sender: usenet@kth.se (Usenet)
- Nntp-Posting-Host: thalamus.sans.kth.se
- Reply-To: orre@nada.kth.se (Roland Orre)
- Organization: Royal Institute of Technology, Stockholm, Sweden
- References: <1992Jul22.020212.26585@sarah.albany.edu>
- Date: Thu, 23 Jul 1992 03:06:47 GMT
- Lines: 37
-
- In article <1992Jul22.020212.26585@sarah.albany.edu>
- tw5232@albnyvms.bitnet (Teddy Wang) writes:
- > Finally got my RCS Fusion Forty a couple of days ago. Had a b*tch of a time
- > installing it though! Looks as if RCS added a couple of millimeters when they
- > measured how long the 2000 motherboard is. But my real question is has anyone
- > had a problem with RCS's Fusion Forty and IVS's Trumpcard Pro to work together
-
- I can not answer this considering the Trumpcard Pro but what I know of should
- IVS's controller work well with RCS FF. I just want to make you aware about
- that the Fusion Forty board does not manage the 32 bit memory to be accessed
- from the Zorro bus, i.e., it does not support DMA yet.
-
- I use a GVP series II together with my Fusion Forty board. This controller
- is claimed by GVP to be a DMA controller but I have heard the opposite. I
- have heard that it just have DMA to an internal FIFO buffer on the board.
- Anyway, I had problem with this before i upgraded the ROM on the GVP board.
-
- The problems I had were exactly DMA-like problems, i.e. if I disabled DMA
- to fast RWM I could get it work but then it became much slower. These
- problems are, however, fixed now in the new ROM.
-
- I am not sure, but isn't the Trumpcard Pro a DMA controller. In that case
- you can check if this is your problems by disabling DMA to fast RWM. This
- can be done in two ways in the RDB structure. You can set the buffer
- allocation preference Chip/Fast/Any to Chip or by setting the DMA mask
- to only include Chip Memory. It may also be so that DMA is disabled
- totally if you set the mask to 0. If you can not affect these flags with
- you IVS prep program it may be done with the CBM HDToolBox.
- (From CLI: "HDToolBox devicename", From WB: SCSI_DEVICE_NAME=devicename)
-
- --------------------------------+----------------------+-----------------------
- Roland Orre | O---O---O Studies of | orre@nada.kth.se
- Dept. of Computing Science | \ /|\ /| Artificial | orre%nada@sekth.bitnet
- Royal Institute of Technology | O-O-O-O Neural |
- SANS, NADA, KTH | |/ \ /| Systems | Phone: +46 8 790 6900
- S-100 44 Stockholm, Sweden | O---O-O | Fax: +46 8 790 0930
- --------------------------------+----------------------+-----------------------
-