| Data Acquisition Toolbox™ | |
BiDirectionalBit can be 5, 6, or 7. The default value is 5 because most parallel port hardware uses bit 5 of the BIOS control register to determine the direction (input or output) of port 0.
If port 0 is unable to input data, you need to configure the BiDirectionalBit value to 6 or 7. Typically, you will not know the bit value required by your port, and some experimentation is required.
Note The Parallel Port adaptor will be deprecated in a future version of the toolbox. If you create a Data Acquisition Toolbox™ object for 'parallel' beginning in R2008b, you will receive a warning stating that this adaptor will be removed in a future release. See the supported hardware page at www.mathworks.com/products/daq/supportedio.html for more information. |
Vendor | Parallel port |
Usage | DIO, Common |
Access | Read/write |
Data type | Double |
Read-only when running | Yes |
{5}, 6, or 7 | The BIOS control register bit that determines bidirectional operation. |
| Device-Specific Properties — Alphabetical List | BitsPerSample | |
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