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Archive for the 'Serial (RS232)' Category
Monday, April 30th, 2007
On Solaris 8, TERM gives the error, “Cannot open device” when connecting to a tty port. This works properly on earlier versions of Solaris. Changing the port permissions does not help, nor does starting TERM with the -i command-line parameter.
Posted in Serial (RS232), TERM, UNIX | Comments Off on Cannot Open Device on Solaris 8
Monday, April 30th, 2007
Several IBM RS/6000 models have two processors, a primary CPU and a service processor. When the system is powered down, but still plugged in, the service processor remains active. An IBM3151 terminal can be plugged into this processor via serial cable and used to manage the system.
TinyTERM plugged into the same port does not work until the RS/6000 is booted. At that point, TinyTERM works correctly.
CR 605
Posted in IBM, Serial (RS232) | Comments Off on IBM3151 Doesn’t Recognize Service Processor
Friday, April 27th, 2007
TERM for SCO UNIX cannot disable tty ports numbered higher than ttyA9. It can use the ports if they are already disabled, but it can’t disable them on its own.
CR 544
Posted in Serial (RS232) | Comments Off on Can’t Disable Ports Above ttyA9
Friday, April 27th, 2007
TERM for UnixWare does not properly enable or disable tty ports on OpenUnix 8. The devices apparently aren’t listed in the /etc/inittab where TERM expects to find them.
CR 495
Posted in Serial (RS232), TERM, UNIX | Comments Off on TERM on OpenUnix 8
Wednesday, April 25th, 2007
TERM for HP-UX will not connect to tty ports on HP-UX 11. There are no problems with this on earlier versions of HP-UX.
CR 121
Posted in Serial (RS232), UNIX | Comments Off on Can’t Connect to tty on HP-UX 11
Friday, April 20th, 2007
It is sometimes necessary to connect to a host via serial cable, then change the baud rate, word length or other connection information while connected. TinyTERM versions prior to 4.31 require you to disconnect before settings changes take effect. TinyTERM 4.31 and higher allow you to make the change on the fly.
CR 460
Posted in Serial (RS232) | Comments Off on Change Serial Settings While Connected
Friday, April 20th, 2007
TinyTERM 4.x gives garbage or no response over a 7-bit connection, particularly if even parity is set. This was fixed in TinyTERM 4.21.
CR 323
Posted in Serial (RS232) | Comments Off on 7-Bit Connections Fail
Thursday, April 19th, 2007
The available baud rates in TERM for UNIX/Linux were extended to allow 57600 and 115200 in version 6.28.
CR 221
Posted in Linux, Serial (RS232), TERM, UNIX | Comments Off on Higher Baud Rates
Wednesday, April 18th, 2007
Using TinyTERM 4.04 over a serial connection, the text can pause occasionally, then more text will display. It’s very slow in such cases.
In TinyTERM 4.05 there was a change made to the way TinyTERM buffers screen display. It smooths out the pauses and clumping of text. There is no patch.
Posted in Serial (RS232) | Comments Off on Pauses in Text Display
Wednesday, April 18th, 2007
It is possible to open multiple sessions over a single serial connection. It requires software such as mscreen or FacetTerm on the host system. Without that, only one session can run on a serial connection.
You also need to set the screen pages. That’s handled differently by different versions of TERM and TinyTERM:
- TERM: Use the TERM Script Language command PAGES:
pages 4
- TinyTERM (up to 3.3) or TERM for Windows: Go to the Configure menu and select Emulation. Change the Screen Pages line.
- TinyTERM for DOS: From the main menu, select Emulation. Change the Screen Pages line.
- TinyTERM 4.00-4.20: Edit the .tpx file in Notepad or another text editor. Search for the “pages=” line. Edit the number there.
- TinyTERM 4.21 and higher: Go to the Edit menu and select Preferences. Change the Screen Pages drop-down.
Regardless of which product you’re using, accepted values for the screen pages are 1-6.
CR 26, added to user interface in TinyTERM 4.21
Posted in Serial (RS232), TSL | Comments Off on Multiple Sessions Over a Serial Connection
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