The Emulex QT13 is a 0.5" Pertec-formatted magtape coupler with switchable TSV05/TMSCP-emulation on a dual-height qbus board. Like many of the Emulex controllers designed and manufactured in mid-to-late eighties, it has rich diagnostics support. The board has two 50-pin ribbon cable connector, two switchpacks, three LEDs and a small, three-pin connector for connecting an RS232 serial terminal local diagnostics.
Configuration
Switchpack 1 (SW1 on the handle-edge of the board) is for operating/diagnostics.
Open (OFF) On 1: State: Run Halt 2: Mode: Operation Diagnostics 3: Console select: Onboard Host 4: Host type: LSI11 MicroVAXSwitchpack 2 (SW2) is for addressing and module options.
Off On 1. Address select #1 2. Address select #2 3. Address select #3 4. Emulation: TMSCP TSV05 5. Addressing: 18-bit 22-bit 6. 7. 8.Remember: you must set it to 22-bit addressing when using the card in a MicroVAX system. The drive device names are MUx and MUAx in TMSCP mode, and MSx or MSAx using TSV05 emulation.
The CSR address settings
CSR address SW2 TSV05 TMSCP 1 2 3 777520 774500 0 0 0 777254 760404 1 0 0 772530 760410 0 1 0 772534 760414 1 1 0 772440 760444 0 0 1 772444 760450 1 0 1 772450 760454 0 1 1 772454 760504 1 1 1Using the firmware diagnostics on a MicroVAX system
The QT13 has a very nice, menu-driven firmware configuration/diagnostics program. It can be used through the three-pin BERG connector, and also from the LSI11 ODT or MicroVAX console emulator. To use it, you must halt the system, and make sure that it doesn't boot into an oprating system. Don't try to invoke this utility on a running system!
1. Reset or power-up the system (with halt set to enabled). SW1-1
to 4 are "off".
2. Switch SW1-4 (4th switch in switchpack 1) to "on". (Note:
Take care, you're playing around in a running system: you can bend the
card, tear it out from the backplane, or cause a short circuit if you're
not careful!)
3. Switch SW1-3 to "on"
4. Switch SW1-2 to "on"
5. At the "chevron" prompt, enter the following:
>>> D/P/W 20001F40 20
>>> D/P/L 20088000 80000000
>>> D/P/L 20088004 80000001
6. Set SW1-1 to "on", and then back to "off". The LEDs on the
board should flicker.
7. At the "chevron" prompt, enter:
>>> S 80
or
>>> S 82
on a VAXstation with graphics adapter. You're in the menu
system of the firmware utility.
You can configure various parameters of the drive(s), run tests from here. The program will even tell you if the cables are reversed. Press "Halt", and set all SW1 switches back to "off" when finished.
The pin-out of the three-pin BERG connector (RS232-compatible terminal port)
Pin 1: Signal ground, connect to pin 7 on the DB25 connector
Pin 2: Transmit, connect to pin 2 on DB25
Pin 3: Receive, connect to pin 3 on DB25
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| Created by: Ákos Varga | Last modified: |