How Do I Use Port 4 on the AT-DIO-32HS Board
Hardware: Digital I/O (DIO)>>High-Speed>>AT-DIO-32HS
Problem: The 6533 and 6534 products (also known as AT-DIO-32HS or PCI-DIO-32HS) have 4 available digital I/O ports. In handshaking mode, port 4 is reserved for the handshaking communication signals. If I am not in the handshaking mode, how can I use the port 4 to perform simple digital I/O operations?
Solution: When you are not using the board in handshaking mode, you free up port 4 to perform normal digital I/O. Here is the pinout match for port 4 when not in handshaking mode.
- REQ<1..2> [Pins 2, 9]
When not configuring the DIO-32HS for group operations, you can use these lines as extra general purpose input lines (INPUT<3..4>).
- STOPTRIG<1..2> [Pins 4, 7]
When not configuring the DIO-32HS for group operations, you can use these lines as extra general-purpose input lines (INPUT<1..2>).
- PCLK<1..2> [Pins 5, 6]
When not configuring the DIO-32HS for group operations, you can use these lines as extra general-purpose output lines (OUTPUT<1..2>).
- ACK<1..2> [Pins 3, 8]
When not configuring the DIO-32HS for group operations, you can use these lines as extra general-purpose output lines (OUTPUT<3..4>).
Port 4 of a 6533 or 6534 device is not a configurable port and does not require a DIG_PRT_CONFIG call. Since Port 4 is not configurable, use DIG_PRT_IN or DIG_PRT_OUT (NIDAQ functions) directly. For more detail, please see the 6533 and 6534 Users Manual link below.
Related Links:
Product Manuals: 6533 and 6534 User Manual
Attachments:
Report Date: 08/25/1998
Last Updated: 10/23/2008
Document ID: 1CO8JJ23
