rhaar@rcsuna.UUCP (Bob Haar CS50) (05/12/89)
I am having a problem with a combo board and need to get some help. My system is a 7300 UNIX PC with 1 Meg of RAM on the motherboard running release 3.51 . I bought an EIA/RAM combo board with 0.5 Meg and 2 serial ports. When I brought up the system with this board, I began to experience problems. The memory passes all diagnostics and UNIX runs fine using it. I am getting mixed results with the serial ports. The board came with a floppy containing RS232 expansion port software (v. 3.0). The auto-install proceedure failed - hangup up with a message saying "Loading device drivers" for > 30 min. I loaded the install software manually ( cpio -icBv </dev/rfp021 ) and ran the install using "sh -v" to see what was going on. The install script hung up will running cmb.rc, which seems to initialize the combo board serial ports. I booted the diagnostic floppy and the expansion serial ports failed ALL the tests (N.B. the standard serial port passed all tests.) There was a version 3.51 expansion port software disk in the foundation set. This loaded and installed with no problems. I then configured all three serial ports for terminal connections (9600 baud, no hardware flow control) and was able to log in and run on all three using a VT100 compatible terminal emulation on an IBM-PC clone. Great. But the expansion ports still fail the diagnostics. Questions: 1) should I believe the diagnostics? 2) is there a different version of the diagnostics that I should try? 3) is the loop-back connecto that I made correct? It works for testing the standard serial port. The connections I made are: |-- pin 2 (Data transmit) | |-- pin 3 (Data receive) |-- pin 4 (Request to send) | |-- pin 5 (Clear to send) | |-- pin 8 (carrier detect) |-- pin 6 (Data set ready) | |-- pin 20 (Data terminal ready) | |-- pin 22 (Ring detect) Bob Haar G.M. Research Labs uunet!edsews!rphroy!rcsuna!rhaar HAAR@GMR.COM (CSNET)
wouk@romeo.cs.duke.edu (Arthur Wouk) (05/20/89)
In article <12185@rcsuna.UUCP> rhaar@rcsuna.UUCP (Bob Haar CS50) writes: > > >My system is a 7300 UNIX PC with 1 Meg of RAM on the motherboard >running release 3.51 . I bought an EIA/RAM combo board with ^^^^^^^^^^^ >0.5 Meg and 2 serial ports. When I brought up the system >with this board, I began to experience problems. The memory > >The board came with a floppy containing RS232 expansion port >software (v. 3.0). The auto-install proceedure failed - hangup ^^^^^^^^^^^^^^^^^^ >up with a message saying "Loading device drivers" for > 30 min. THE DISK SHIPPED WITH THE BOARD IS NOT APPROPRIATE FOR THIS USE. that is your problem. i had this when i installed the combo board. i called at&t and they pointed this out. you must use the expansion port software which came with the 3.51 system. there is a specific disk for this installation which is different for 3.51. since finding the appropriate disk and using it, all is well. this is for the news mailer which is causing a lot of unnecessary trouble to those of us who are given to succinct responses!
feb@cbnews.ATT.COM (Franco E. Barber) (05/21/89)
In article <12185@rcsuna.UUCP> rhaar@rcsuna.UUCP (Bob Haar CS50) writes: >I am having a problem with a combo board and need to >get some help. >3) is the loop-back connecto that I made correct? It works for > testing the standard serial port. The connections I made are: > |-- pin 2 (Data transmit) > | > |-- pin 3 (Data receive) > |-- pin 4 (Request to send) > | > |-- pin 5 (Clear to send) > | > |-- pin 8 (carrier detect) > |-- pin 6 (Data set ready) > | > |-- pin 20 (Data terminal ready) > | > |-- pin 22 (Ring detect) >Bob Haar >G.M. Research Labs >uunet!edsews!rphroy!rcsuna!rhaar >HAAR@GMR.COM (CSNET) That connector works only for the built-in serial port. The loopback connector for the expansion ports has to cross connect the two ports on the card. Ie, pin 2 on port 1 to pin 3 on port 2, etc. The diagnostics even test the external clock inputs. here are the appropriate connections: port 1 port 2 TxD 2 ----- 3 RxD RxD 3 ----- 2 TxD RTS 4 ----- 5 CTS and 8 CD CTS 5 and CD 8 ----- 4 RTS DSR 6 and RI 22 ----- 20 DTR DTR 20 ----- 6 DSR and 22 RI TxClk 15 and RxClk 17 ----- 24 DTE TxClk DTE TxClk 24 ----- 15 TxClk and 17 RxClk GND 7 ----- 7 GND Franco Barber att!cblpe!feb