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The LPV11 (being a CHAPI component) provides the following configuration parameters, to be specified using the "set" command:

address

Parameteraddress
TypeNumeric
Value

Specifies the CSR address.

This address must be a valid QBUS 22-bit address in an I/O space.

The initial value is 017777514, which is the factory setting for an LPV11.

vector

Parametervector
TypeNumeric
Value

Specifies the interrupt vector.

The initial value is 0200, which is the factory setting for an LPV11.

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parameters

  • "\\.\LPT<N>"
Host
  • corresponds to the host port to connect to a physical printer
  • "port"
TCP
  • corresponds to the TCP/IP port to connect to an external application
  • "application"
An application
  • corresponds to the application to run after opening the port.
  • Note: the name of the application including its own parameters must be framed within ‘ characters (apostrophe).
  • -port
The TCP
  • corresponds to the TCP/IP port the HOSTprint utility will connect to.
  • -fontsize
The font
  • corresponds to the font size to be used for printing.
  • -font
The font
  • corresponds to the font to be used for printing. The font name must be framed with \ (backslash) symbols.
Parameterparameters
TypeText String
Value

Specifies the name of the file in which the LPV11 prints the text, the name of a physical printer or a TCPIP port to connect to an external utility, like HOSTPrint, (along with some additional parameters):

ParametersDescription


It’s possible to load as many LPV11 devices as you wish and the system running on the emulated VAX/PDP-11 allows this to be done. To load LPV11 devices use the standard QBUS parameters: "address" and "vector" to select the correct place on the QBUS.

The following example demonstrates how to load 2 instances of LPV11, mapped to 2 host system LPT ports:

load chapi lpv1 address = 017777514 vector = 0200
set lpv1 dll = lpv11.dll parameters = "\\.\LPT1"
load chapi lpv2 address = 017764004 vector = 0170
set lpv2 dll = lpv11.dll parameters = "\\.\LPT2"

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Note

The printers connected to the host must understand output of the LPV11 driver on the emulated VAX/PDP-11. Use printers that work with the VAX/PDP-11 hardware.

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load chapi lpv1 address = 017777514 vector = 0200
set lpv1 dll = lpv11.dll parameters="port = 10004 application='HOSTPrint -port=10004 -fontsize=12 -font=\Courier New\'"


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The dummy VCB02 device emulates the QBUS registers of a VCB02 graphic controller , (at the secondary VCB02 device address) but does not implement graphic display functionality. Its purpose is to be able to use a workstation version of VMS. When this device is loaded and , VAX/VMS boots with a requires type "D" licenses (workstation) type license, the license is accepted because VMS recognizes that a VCB02 is present.Workstation). As the dummy VCB02 is located on the secondary address (0x3fff02HEX: 0x3fff02  OCT: 01777402), VMS boots using the normal console terminal without graphics capability.

The format is as follows:

load chapi dummy_vcb02

/null

dll=chapi_vcb02
set dummy_vcb02 address = 017777402 vector = 0320 display = null


Note

Since As this dummy device cannot draw graphics, CHARONCharon-VAX will can fail the initial hardware diagnostics , but it will still boot correctly.

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