Re: Super Serial trouble.

[Linards Ticmanis <ticmanis@coli.uni-sb.de>]

william strutts wrote:
> 
> I haven't figured out the PR#1 command.  I was trying
> to do a similar thing with an HP Deskjet printer and nothing
> would happen.

According to the printer manual, after PR#1 everything that usually
appears on the screen is supposed to go to the printer. By inference,
I assume that the same is true if there is a terminal program on the
other end.

However in fact neither a printer (Apple ImageWriter) nor a terminal
program receive anything.
 
> In terminal mode on the PC, do you see anything being
> typed?  It should be showing some characters.  Have you

No, and that's the problem. I only see stuff typed on the PC appearing
Apple side of things, not the other way around.

> tried running a terminal program on both ends to see if
> you can type characters back and forth between the two
> systems?  This would help you debug the speed and

Not yet, but as I said the Apple can receive with no trouble, which in
my admittedly limited understanding of these things would suggest that
the speed and parameters are right. I did write a short QBasic program
on the PC to experiment with speed settings and everything went as
expected, only it was a rather one sided experience, so to speak ;-)

> parameter settings.  If they are correct, you would get
> ASCII characters on the screen and if not, you would
> get garbage characters on the screen.

I'm getting neither.

> 
> Are you using Windows version of ADT if you're
> in Windows?  I could never get DOS ADT to work for
> me in Windows because it wouldn't recognize my com
> ports correctly.

I've tried DOS ADT in both DOS and Windows, and also Unix ADT in
Linux. None of them worked and 
the failure was always at the same point: The PC doesn't ever get any
commands from the Apple.

I also tried the APTEST disk from CALL-A.P.P.L.E. and all it had to
offer was "THE CARD TEST GOOD"

I also tried various null-modem and straight-through cables while
flipping back and force the jumper block as needed. 

I also tried different slots and tried removing all other cards. I
tried Integer BASIC and Applesoft BASIC, the latter with or without
DOS loaded. I tried ProDOS. I tried setting different speeds with the
DIP switches and then followed suit in my little QBasic program. The
card always receives but it never sends.

I looked at the traces and joints again and I also checked the
ribbon-cable connector and the DB25 socket that came with the card.
Everything looks just fine.

The bottom line: I'm running out of ideas just what to check.

> "Linards Ticmanis" <ticmanis@coli.uni-sb.de> wrote in message
> 3B375772.8BBE4638@coli.uni-sb.de">news:3B375772.8BBE4638@coli.uni-sb.de...
> > Hi Group,
> >
> > I'm having trouble with the (original) Super Serial Card I just got.
> > No matter what I do, it seems that I can only receive data *to* the
> > (clone) Apple II+, but cannot send anything *from* the Apple. I have
> > tried 2 different PCs and different comm programs as well. Among
> > others I put a laptop right on top of the Apple and I attached the
> > little dangly bit from the SSC directly to the laptop COMM input (with
> > the jumper block on the SSC set to TERMINAL), so the cable is out.
> >
> > Receiving works just fine at any speed, setting, etc., I can type IN#1
> > on the apple and then remote-control it from the PC. However after I
> > do PR#1 the Apple output never shows up on the PC (or anywhere else
> > for that matter).
> >
> > Playing around with setting Hardware Flow-Control on and off, parity
> > settings, different slots,  etc. just didn't work either. Also I
> > haven't found any broken solder joint etc. by inspection.
> > Unfortunately my multimeter is currently with my parents, and I don't
> > have an osci.
> >
> > ADT didn't work either so I'm pretty sure the fault is somewhere in
> > the Hardware. Do you have any ideas on what to check beyond broken
> > wires, oxidised contacts and bad solder joints?

-- 

Linards Ticmanis

 The Master said, "The business of laying on the colors follows the
preparation of the plain ground."