BHOLMES@WAYNEST1.BITNET (Brian Holmes) (09/12/88)
I have heard about ethernet boards that connect to a MAC via the
RS232 port, so the hardware is out there. It would just be a matter
of writing the software to run it on an ST. I don't know very much
about apple talk, but could you then tie a machine on ethernet into
appletalk?
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*******************************************************************dlm@druhi.ATT.COM (Dan Moore) (09/13/88)
in article <8809120250.AA29256@ucbvax.Berkeley.EDU>, BHOLMES@WAYNEST1.BITNET (Brian Holmes) says: > I have heard about ethernet boards that connect to a MAC via the > RS232 port, so the hardware is out there. It would just be a matter > of writing the software to run it on an ST. I don't know very much > about apple talk, but could you then tie a machine on ethernet into > appletalk? There are a couple (at least) of products out that allow you to connect an AppleTalk Network to Ethernet. If you did have an AppleTalk compatible port on the ST you could then hook it to Ethernet. Of course the ST doesn't have an AppleTalk compatible port. Apple used a Zilog SCC chip that can be run at rates as high as 1 Mega bit per second. In the Mac it is limited to about 300K bit per second data rates due to the hardware design (low clock speed and no DMA to/from the chip). AppleTalk is run at about 230K bits per second (I don't remember the exact figure). Unfortunately the ports on the ST are limited to low speeds, 19.2K baud for the serial port and 32K baud for the MIDI ports. So either you have to modify the ST serial hardware to support higher speeds or you have to add additional hardware with an AppleTalk compatible port. If you want Ethernet it is probably going to be cheaper to design something to run off the DMA bus instead of going through an AppleTalk to DMA converter. Dan Moore AT&T Bell Labs Denver dlm@druhi.ATT.COM
mikew@wheeler.wrcr.unr.edu (Mike Whitbeck) (09/16/88)
! There are a couple (at least) of products out that allow you to !connect an AppleTalk Network to Ethernet. If you did have an AppleTalk !compatible port on the ST you could then hook it to Ethernet. Of course !............ If you want Ethernet it is probably going to be !cheaper to design something to run off the DMA bus instead of going !through an AppleTalk to DMA converter. ! ! Dan Moore *Someone asked about ethernet for the atari ST. We (our group at Delft *University) are currently inquiring about the German product. It is *supposed to be used at the University of Aachen. I hope to hear from *it next week. When I hear something, I will post it. *Hans Buurman So close yet so far... BMB Canada made and sold (2?) "ST-network to-PC" dma boxes called imaginet but the product is no longer available (I just called 9/15/88). There seems to be a German ethernet card but how do you get it? MAYBE SOMEONE AT ATARI CAN SHED SOME LIGHT ON OBTAINING NETWORKING FOR THE ST????? maybe this is the kind of product for the entrepeneur (like MagicSac?) speaking of which ....... if you had a Spectre 128 AND a DMA-2-SCSI board could you then run a MAC ethernet or appletalk? ___________________________________________________________ |Mike Whitbeck | | |Desert Research Inst. | mikew@wheeler.wrc.unr.edu | |POB 60220 | | |RENO, NV 89506 | 702-673-7348 | |__________________________|______________________________| There is no expedient to which man will not go to avoid the real labor of thought. Edison. ___________________________________________________________ |Mike Whitbeck | | |Desert Research Inst. | mikew@wheeler.wrc.unr.edu |