| xPC Target | |
Onyx-MM boards have two digital I/O chips, each with three 8-bit digital I/O ports, for a total of 48 I/O lines. Each port can be configured independently for either input or output. Use a separate driver block for each port. Select the digital output driver block for a given port to configure a port for output.
Scaling Input to Output
| Hardware Input |
Block Output Data Type |
Scaling |
| TTL |
Double |
TTL low = 0.0 TTL high = 1.0 |
Driver Block Parameters
Channel vector -- Enter numbers between 1 and 8 to select the digital output lines used with this port. This driver allows the selection of individual digital output lines in any order. The number of elements defines the number of digital lines used.
For example, to use all of the digital outputs for the current port, enter
Number the lines beginning with 1 even if the board manufacturer starts numbering the lines with 0.
Port -- From the list choose A, B, or C.
Chip -- From the list choose 1 or 2.
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 correspond to the Base address board setting. For example, if the base address is 300 (hexadecimal), enter
| | Onyx-MM Digital Input | Quartz-MM 5 | |