Documentation

Real Time Devices DM6814 Digital Input

DM6814 Digital Input block

Library

Simulink® Real-Time™ Library for Real Time Devices

Note

You can use only one digital input block per port. You can use an input and an output block for the same port, but then each block must use channels different from those in the other block.

Scaling Input to Output

Hardware Input

Block Output Data Type

Scaling

TTL

Double

TTL low = 0.0
TTL high = 1.0

Block Parameters

Channel Vector

Enter numbers between 1 and 8 to select the digital input lines used with this port. This driver allows the selection of individual digital input lines in arbitrary order. The number of elements defines the number of digital lines used.

For example, to use all the digital inputs for the current port, enter

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

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

Port

Select port A, B, or C.

Sample time

Enter the base sample time or a multiple of the base sample time (-1 means sample time is inherited).

Base address

Enter the base address of the board. This entry must correspond to the DIP switch setting on the board. For example, if the DIP switch setting is 300 (hexadecimal), enter 0x300.

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