fs-info@sbsvax.UUCP (Fachschaft Mathe/Info) (02/28/89)
Hello Folks !
I have a little problem with my Commodore PC-1.
And I have a little problem with speaking english.
Therefor i wrote this letter in german. Perhaps someone outside
Germany can read it.
But you can write your answers in English.
Hier mein Problem:
Es geht um den seriellen Port meines PC-1.
Der Computer laeuft im normalen Betrieb voellig fehlerfrei.
Wenn ich allerdings den PC-1 mit meinem IBM-PS/2 Modell 30 seriell verbinde
und Daten uebertrage, stuerzt mir der PC-1 nach einiger Zeit voellig
ab.
Ich habe keine regelmaessigkeit feststellen koennen. Egal welches
Uebertragungsprogramm ich nehme, egal welche Baudrate ich nehme.
Das einzige was ich glaube bemerkt zu haben ist, dass er schneller abstuertzt
je hoeher ich die Baudrate waehle. Aber das ist nur eine schwache Vermutung,
da er beim Flugsimulator 3 im TWO PLAYER MODE bei 300 Baud schon nach
kuerzester Zeit abstuerzt.
Wenn er aber abgestuerzt ist, hilft nur AUS und wieder EINschalten.
Wenn Ihr eine Idee habt was das sein koennte und wie man es beheben
koennte, schreibt mir innerhalb dnet persoenlich, und sonst bitte in
comp.sys.ibm.pc .
Vielen Dank
von Ralf-Henning Glomb
erreichbar ueber:
-----------------------------------------------------------------------------+
+
FMI UUCP: ...!uunet!unido!sbsvax!fs-info +
Bau 27, Raum 101 CSNET: fs-info%sbsvax.uucp@Germany.CSnet +
Universitaet des Saarlandes ARPA: fs-info%sbsvax.uucp@uunet.UU.NET +
Im Stadtwald X400: fs-info@sbsvax.informatik.uni-saarland.dbp.de +
D-6600 Saarbruecken 11 (preferred) +
GERMANY (WEST) +
-----------------------------------------------------------------------------+wnp@killer.DALLAS.TX.US (Wolf Paul) (03/02/89)
In article <692@sbsvax.UUCP> fs-info@sbsvax.UUCP (Fachschaft Math/Info) writes:
=
=I have a little problem with my Commodore PC-1.
=And I have a little problem with speaking english.
=Therefor i wrote this letter in german. Perhaps someone outside
=Germany can read it.
=But you can write your answers in English.
I don't know the answer to this fellow's problem but below follows
a translation of his request for help -- maybe someone can send him
a hint :-)
=
=Hier mein Problem:
Here is my problem:
=Es geht um den seriellen Port meines PC-1.
It concerns the serial port of my PC-1.
=Der Computer laeuft im normalen Betrieb voellig fehlerfrei.
The computer normally runs without errors.
=Wenn ich allerdings den PC-1 mit meinem IBM-PS/2 Modell 30 seriell verbinde
However, when I try to connect the PC-1 to an IBM PS/2 Model 80 through
=und Daten uebertrage, stuerzt mir der PC-1 nach einiger Zeit voellig
the serial port and transfer data, the PC-1 crashes after a while.
=ab.
=Ich habe keine regelmaessigkeit feststellen koennen. Egal welches
I have not been able to discern a pattern. Regardless of
=Uebertragungsprogramm ich nehme, egal welche Baudrate ich nehme.
the file transfer program, regardless of the baud rate.
=Das einzige was ich glaube bemerkt zu haben ist, dass er schneller abstuertzt
The only thing I seem to have noticed is that the PC crashes sooner
=je hoeher ich die Baudrate waehle. Aber das ist nur eine schwache Vermutung,
the higher the baud rate. But that's only a vague guess,
=da er beim Flugsimulator 3 im TWO PLAYER MODE bei 300 Baud schon nach
since Flight Simulator 3 in two-player-mode at 300 baud will crash it
=kuerzester Zeit abstuerzt.
in no time at all.
=Wenn er aber abgestuerzt ist, hilft nur AUS und wieder EINschalten.
Once it crashes, the only thing left to do is to power down and up again.
=Wenn Ihr eine Idee habt was das sein koennte und wie man es beheben
If you have any idea what might cause this and how to fix it
=koennte, schreibt mir innerhalb dnet persoenlich, und sonst bitte in
please email me from within dnet, or else post to comp.sys.ibm.pc.
=comp.sys.ibm.pc .
=Vielen Dank
Thanks a lot,
=von Ralf-Henning Glomb
=-----------------------------------------------------------------------------+
=FMI UUCP: ...!uunet!unido!sbsvax!fs-info +
=Bau 27, Raum 101 CSNET: fs-info%sbsvax.uucp@Germany.CSnet +
=Universitaet des Saarlandes ARPA: fs-info%sbsvax.uucp@uunet.UU.NET +
=Im Stadtwald X400: fs-info@sbsvax.informatik.uni-saarland.dbp.de +
=D-6600 Saarbruecken 11 (preferred) +
=GERMANY (WEST) +
=-----------------------------------------------------------------------------+
--
Wolf N. Paul * 3387 Sam Rayburn Run * Carrollton TX 75007 * (214) 306-9101
UUCP: killer!wnp ESL: 62832882
DOMAIN: wnp@killer.dallas.tx.us TLX: 910-380-0585 EES PLANO UDkbe@dde.uucp (Kjeld Borch Egevang) (03/15/89)
In article <692@sbsvax.UUCP>, fs-info@sbsvax.UUCP (Fachschaft Mathe/Info) writes: > ... > Hier mein Problem: > > Es geht um den seriellen Port meines PC-1. > ... I won't try writing in German though my old teacher would be disappointed. I've had the same problem. I made an interrupt-driven TSR-program when trying to get two PC1's to communicate. Suddenly the screen went black and it was stone-dead. But I mostly had the problem when I turned off the other machine, which apparently sent a lot of garbage on the line when going down. I think the reason is the interrupts being too frequent thus overflowing the stack. My advice is to try to disable all interrupts from the 8250 and see if it works (I vaguely remember it did). Be free to write me if you don'n know how to handle the 8250 (the 8259 is tricky but you could try here too). There is an undocumented interrupt enable bit namely one of the out-bits (I don't remember exactly which one) from the 8250. If you study the diagram you'll find out. | UUCP: kbe@dde.dk (Kjeld Borch Egevang) | Dansk Data Elektronik | or ...mcvax!enea!dkuug!dde!kbe | Denmark