* [parisc-linux] Help - Serial console problem @ 2001-10-16 17:47 paul lee 2001-10-16 17:52 ` Randolph Chung 2001-10-16 18:40 ` Grant Grundler 0 siblings, 2 replies; 6+ messages in thread From: paul lee @ 2001-10-16 17:47 UTC (permalink / raw) To: parisc-linux Hello, I could not access a C200 workstation via serial console. Could someone please give me some insight? I use hyperterminal on Win 2000. The settings are VT100, 9600, 8-N-1 and Xon/Xoff. Thanks a lot. __________________________________________________ Do You Yahoo!? Make a great connection at Yahoo! Personals. http://personals.yahoo.com ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [parisc-linux] Help - Serial console problem 2001-10-16 17:47 [parisc-linux] Help - Serial console problem paul lee @ 2001-10-16 17:52 ` Randolph Chung 2001-10-16 18:40 ` Grant Grundler 1 sibling, 0 replies; 6+ messages in thread From: Randolph Chung @ 2001-10-16 17:52 UTC (permalink / raw) To: paul lee; +Cc: parisc-linux > I could not access a C200 workstation via serial > console. Could someone please give me some insight? > I use hyperterminal on Win 2000. The settings are > VT100, 9600, 8-N-1 and Xon/Xoff. try turning off flow control. randolph -- Debian Developer <tausq@debian.org> http://www.TauSq.org/ ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [parisc-linux] Help - Serial console problem 2001-10-16 17:47 [parisc-linux] Help - Serial console problem paul lee 2001-10-16 17:52 ` Randolph Chung @ 2001-10-16 18:40 ` Grant Grundler 2001-10-16 18:49 ` Randall Craig 2001-10-16 21:24 ` Christoph Plattner 1 sibling, 2 replies; 6+ messages in thread From: Grant Grundler @ 2001-10-16 18:40 UTC (permalink / raw) To: paul lee; +Cc: parisc-linux paul lee wrote: > I could not access a C200 workstation via serial > console. Could someone please give me some insight? > I use hyperterminal on Win 2000. The settings are > VT100, 9600, 8-N-1 and Xon/Xoff. The settings are correct. It's possible the serial cable isn't wired correctly or the C200 isn't trying to use serial port1. grant ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [parisc-linux] Help - Serial console problem 2001-10-16 18:40 ` Grant Grundler @ 2001-10-16 18:49 ` Randall Craig 2001-10-16 21:24 ` Christoph Plattner 1 sibling, 0 replies; 6+ messages in thread From: Randall Craig @ 2001-10-16 18:49 UTC (permalink / raw) To: Grant Grundler; +Cc: paul lee, parisc-linux * Grant Grundler (grundler@puffin.external.hp.com) [011016 11:44]: > paul lee wrote: > > I could not access a C200 workstation via serial > > console. Could someone please give me some insight? > > I use hyperterminal on Win 2000. The settings are > > VT100, 9600, 8-N-1 and Xon/Xoff. > > The settings are correct. > It's possible the serial cable isn't wired correctly > or the C200 isn't trying to use serial port1. > make sure that on the c200 that you set you console as serial. ie, issue this command on the firmware command line: path con serial_1 which will change the console graphics to be displayed on you 1st serial port (the top one). ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [parisc-linux] Help - Serial console problem 2001-10-16 18:40 ` Grant Grundler 2001-10-16 18:49 ` Randall Craig @ 2001-10-16 21:24 ` Christoph Plattner 2001-10-18 5:29 ` Thanks - " paul lee 1 sibling, 1 reply; 6+ messages in thread From: Christoph Plattner @ 2001-10-16 21:24 UTC (permalink / raw) To: Grant Grundler; +Cc: paul lee, parisc-linux Hello, I think the problem has to do with the hardware handshake. The silly M$ OS has the problem, that it expects correct settings of the hardware handshake lines, although hardware handshake is not used. The same is true for the default BIOS (int 14h) driver. On Linux, for example, this problem is not present. The PC under any Microsoft system or under BIOS (int 14h) control does not send any character, if the CTS line (pin 5 on the D-SUB-25) is active. A linux PC used via serial console on a Win2000 system is working, as the Linux PC activates the lines, although it is not using them. So sum up: Windows expects on the input side an active CTS to send. Linux does not require this line active, but activates the output for a machine on the other side, who needs the output active. The HP workstation and server (so my HP 55E 9000/856) do not activate the handshake line, so the CTS pin on the Win2000 side is inactive. Is was not possible for my to activate the handshake lines on the HP server via `stty'. The most simple method to get it working: Make a special cable with a 3-wire conection to the HP machine (TXD, RXD, GND) and solder two bridges on the Win2000 side in the connector: for 25-pin: 4 <-> 5 6 <-> 20 for 9-pin: 7 <-> 8 4 <-> 6 This should work then .... With friendly regards Christoph P. Grant Grundler wrote: > > paul lee wrote: > > I could not access a C200 workstation via serial > > console. Could someone please give me some insight? > > I use hyperterminal on Win 2000. The settings are > > VT100, 9600, 8-N-1 and Xon/Xoff. > > The settings are correct. > It's possible the serial cable isn't wired correctly > or the C200 isn't trying to use serial port1. > > grant > > _______________________________________________ > parisc-linux mailing list > parisc-linux@lists.parisc-linux.org > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux -- ------------------------------------------------------- private: christoph.plattner@gmx.at company: christoph.plattner@alcatel.at ^ permalink raw reply [flat|nested] 6+ messages in thread
* Thanks - Re: [parisc-linux] Help - Serial console problem 2001-10-16 21:24 ` Christoph Plattner @ 2001-10-18 5:29 ` paul lee 0 siblings, 0 replies; 6+ messages in thread From: paul lee @ 2001-10-18 5:29 UTC (permalink / raw) To: Christoph Plattner, Grant Grundler; +Cc: paul lee, parisc-linux Hi, Thank you all very much! The problem has been solved: I re-wire the serial cable as Christoph said and it works very well. --- Christoph Plattner <christoph.plattner@gmx.at> wrote: > Hello, > > I think the problem has to do with the hardware > handshake. > The silly M$ OS has the problem, that it expects > correct > settings of the hardware handshake lines, although > hardware > handshake is not used. The same is true for the > default BIOS > (int 14h) driver. On Linux, for example, this > problem is > not present. > > The PC under any Microsoft system or under BIOS (int > 14h) > control does not send any character, if the CTS line > (pin > 5 on the D-SUB-25) is active. A linux PC used via > serial > console on a Win2000 system is working, as the Linux > PC > activates the lines, although it is not using them. > > So sum up: Windows expects on the input side an > active > CTS to send. Linux does not require this line > active, > but activates the output for a machine on the other > side, > who needs the output active. > > The HP workstation and server (so my HP 55E > 9000/856) do > not activate the handshake line, so the CTS pin on > the > Win2000 side is inactive. Is was not possible for my > to > activate the handshake lines on the HP server via > `stty'. > > The most simple method to get it working: > Make a special cable with a 3-wire conection to the > HP > machine (TXD, RXD, GND) and solder two bridges on > the > Win2000 side in the connector: > for 25-pin: 4 <-> 5 > 6 <-> 20 > > for 9-pin: 7 <-> 8 > 4 <-> 6 > > This should work then .... > > > With friendly regards > Christoph P. > > > Grant Grundler wrote: > > > > paul lee wrote: > > > I could not access a C200 workstation via serial > > > console. Could someone please give me some > insight? > > > I use hyperterminal on Win 2000. The settings > are > > > VT100, 9600, 8-N-1 and Xon/Xoff. > > > > The settings are correct. > > It's possible the serial cable isn't wired > correctly > > or the C200 isn't trying to use serial port1. > > > > grant > > > > _______________________________________________ > > parisc-linux mailing list > > parisc-linux@lists.parisc-linux.org > > > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux > > -- > ------------------------------------------------------- > private: christoph.plattner@gmx.at > company: christoph.plattner@alcatel.at > __________________________________________________ Do You Yahoo!? Make a great connection at Yahoo! Personals. http://personals.yahoo.com ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2001-10-18 5:29 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2001-10-16 17:47 [parisc-linux] Help - Serial console problem paul lee 2001-10-16 17:52 ` Randolph Chung 2001-10-16 18:40 ` Grant Grundler 2001-10-16 18:49 ` Randall Craig 2001-10-16 21:24 ` Christoph Plattner 2001-10-18 5:29 ` Thanks - " paul lee
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