Data Acquisition Toolbox    
PortAddress

Indicate the base address of the parallel port

Description

The PC supports up to three parallel ports that are assigned the labels LPT1, LPT2, and LPT3. You can use any of these standard ports as long as they use the usual base addresses, which are (in hex) 378, 278, and 3BC, respectively.

Additional ports, or standard ports not assigned the usual base addresses, are not accessible by the toolbox. Note that most PCs that support MATLAB will include a single parallel printer port with base address 378 (LPT1).

Characteristics

Vendor
Parallel port
Usage
DIO, Common
Access
Read only
Data Type
String
Read-only when running
Yes

Values

The value is automatically defined when the object is created.

Example

Create a digital I/O object for parallel port LPT1 and return the PortAddress value.

The returned value indicates that LPT1 uses the usual base address.


  OutOfDataMode RampRate