normanl@uokmax.ecn.uoknor.edu (Norman Lin) (02/07/90)
I am fairly new to the world of modeming. I currently have an IBM here at school and an Atari at home. I just got a modem for the IBM, a Hayes- compatible 2400bps external modem. Does anyone know -- can this modem be directly connected to the Atari 800XL, without using the 850 interface or other such inteface? "Directly" includes hand-wiring an Atari SIO cable to the modem RS232 cable. If this is indeed possible, I would assume that I would need some sort of device handler to get the operating system to recognize the new device. Is there any software available for ftp that would perform this fuction? (of course, I would be able to ftp it, but not to the Atari since the Atari doesn't have the handler software yet. I'd even get a printout of the object code and type it in manually if necessary...) Or would I need to write my own device handler? (I have written rudimentary handlers before such as miniature ram-drives and such, but I have no idea what hardware registers would be used to access a direct-wired modem.) Thanks in advance. -- Norman Lin / normanl@uokmax.ecn.uoknor.edu
ain1496e@merrimack.edu (02/07/90)
In article <1990Feb7.060203.24025@uokmax.uucp>, normanl@uokmax.ecn.uoknor.edu (Norman Lin) writes: > I am fairly new to the world of modeming. I currently have an IBM here at > school and an Atari at home. I just got a modem for the IBM, a Hayes- > compatible 2400bps external modem. Does anyone know -- can this modem be > directly connected to the Atari 800XL, without using the 850 interface > or other such inteface? "Directly" includes hand-wiring an Atari SIO cable > to the modem RS232 cable. > Yes, this is possible. I have a Packard Bell 2400BPS running on my 130xe without any type of interface. Once you make your cable ( I purchased a Supra 1200At MOdem a while ago that came with a cable that was rs232 on one end and ATari sio on the other) any programs that have been written for the Atari SX212 modem will work perfectly with it (even though the SX212 is only 1200 baud most programs written for it support up to 9600 baud). There are also a couple of pd drivers available that you can append on to most telecommunicaton programs to make them work) The one that works the best is SX.COM by J. Dillow
weaver@tut.cis.ohio-state.edu (Andrew Weaver) (02/08/90)
In article <1990Feb7.060203.24025@uokmax.uucp> Norman Lin writes: >Does anyone know -- can this modem be >directly connected to the Atari 800XL, without using the 850 interface >or other such inteface? "Directly" includes hand-wiring an Atari SIO cable >to the modem RS232 cable. I doubt it; but there are published plans on how to use the joystick ports to interface to the modem (RS232-wise). The XM301 and 1030 modems are SIO connectable; but designed that way. Either way, however, you would have to write a custom device driver so that the Atari would correctly talk to the RS232 modem. And getting stock programs to talk to your interface might be a bit tricky as well, but possible. If you are interested in the plans, I can dig into my old Antic and Analog magazines for them. andy.. -- Andrew Weaver | weaver@tut.cis.ohio-state.edu West Side Leader | Spring '90: v30188@vax1.cc.uakron.edu Fairlawn, OH | bs0401@file01.ecgf.uakron.edu | c17246@akronvm.BITNET
usenet@cps3xx.UUCP (Usenet file owner) (02/09/90)
Connecting a standard RS-232 device is not as simple as making a cable. The Atari SIO (Serial I/O) port CAN work as an RS-232 port, but it needs a little help. Further, some of the lines coming off the modem are tough or impossible to replicate so what you normally want is a subset. The cable that most likely came with the Supra is an R-Verter, a commercial product. The R-Verter was a slick device that looked like a cable, but hidden inside the RS232 end of the cale, inside the hood, was a weel made tiny little board with a single IC. The Atari SX212 "direct connected" to the SIO port by putting the equivalent of this chip inside the modem. The chip isn't anything special, just a little glue logto get the signals right. Terry Conklin conklin@egr.msu.edu uunet!frith!conklin The Club (517) 372-3131 The Club II (313) 334-8877 w/8 bit files! Hot new files just recently.
ain1496e@merrimack.edu (03/07/90)
In article <6371@cps3xx.UUCP>, usenet@cps3xx.UUCP (Usenet file owner) writes: > Connecting a standard RS-232 device is not as simple as making a cable. > The Atari SIO (Serial I/O) port CAN work as an RS-232 port, but it needs > a little help. > > Further, some of the lines coming off the modem are tough or impossible > to replicate so what you normally want is a subset. > > The cable that most likely came with the Supra is an R-Verter, a > commercial product. The R-Verter was a slick device that looked > like a cable, but hidden inside the RS232 end of the cale, inside > the hood, was a weel made tiny little board with a single IC. > I have a supra 1200AT modem, I know the cable isn't an RVerter, and I have never opened the cable but I do believe it is a straight cable without any IC's If I have a chance I'll open it and check. Any software that was designed for the SX works fine with the cable and in fact I now use the a Packard Bell 2400 baud modem with the cable.