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- From: paulg@weird.miami.fl.us (Paul Griswold)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: RCS FF'040 + Trumpcard Pro
- References: <ORRE.92Jul23040647@thalamus.sans.kth.se>
- Message-ID: <paulg.0a5f@weird.miami.fl.us>
- Date: 23 Jul 92 23:17:28 EDT
- Organization: Weird BBS [Amiga] (305)553-3207 S. Miami, FL USA
- Lines: 46
-
- In article <ORRE.92Jul23040647@thalamus.sans.kth.se>, orre@thalamus.sans.kth.se
- (Roland Orre) writes:
- >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 the
- >y
- >> measured how long the 2000 motherboard is. But my real question is has anyon
- >e
- >> had a problem with RCS's Fusion Forty and IVS's Trumpcard Pro to work togethe
- >r
- >
- >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
- >--------------------------------+----------------------+-------------------- --
-
- The Trumpcard Pro and Grandslam aren't DMA controllers... I forget exactly what type they are, but they definitly are not DMA.
-
- Paul Griswold
-