xPC Target

Data Translation DT2821 Digital Output

www.kxcad.net Home > CAE Software Index > MATLAB Index >

DT2821 Digital Output block

Library

xPC Target Library for Data Translation

Note

DT2821 series boards have two I/O ports, each containing 8 digital I/O lines. These ports can be configured independently for either input or output. Use a separate driver block for each port. By selecting the digital output driver block for a given port, that port is configured for output.

Scaling of Input to Output

Hardware Output	Block Input Data Type	Scaling
TTL	Double	<0.5 = TTL low ≥0.5 = TTL high

Block Parameters

Port

From the list, choose 1 or 2.

Channel vector

Enter numbers between 1 and 8. This driver allows the selection of individual digital output lines in any order. The number of elements defines the number of digital lines you use.

For example, to use all of the digital outputs for this port, enter

[1,2,3,4,5,6,7,8]

Number the lines beginning with 1 even if the board manufacturer starts numbering the lines with 0.

Sample time

Enter a base sample time or a multiple of the base sample time.

Base address

Enter the base address of the board. This entry must corresponds to the DIP switch settings on the board. For example, if the base address is 300 (hexadecimal), enter

0x300

Data Translation DT2821 Digital Input

Data Translation DT2821-F-8DI