Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Mute
- Printer Friendly Page
Patterned input and output from a single port w/ NI 6534 DIO
cogansco
Member
03-18-2004 10:53 AM
Options
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report to a Moderator
Is it possible to configure certain lines in a port to be read and others to be write? I am interested in doing patterned I/O with a single port, first output, then input. Not both at the same time. Is it possible to perform patterned output on one line and patterned input on a different line within the same port?
Thanks
-Scott
Thanks
-Scott
cous
Member
03-19-2004 10:17 AM
Options
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report to a Moderator
Hi Scott,
I understand that you'd like to do digital I/O on a PCI-6534. All of the scenarios you outlined in your question should be possible with this board.
1. You can configure some lines of a port to output signals while others input signals by using a line direction map.
2. You can do patterned I/O on the same port at the same time.
I'm not sure what software you're using to interface with the 6534, but if you happen to be using LabVIEW, then there is a shipping example which demonstrates the basics of patterned I/O on a single port of a DIO board. The example is called Digital Multi-line Direction (E).vi and can be found in Help >> Find Examples. If you are using another programming language, then there may be examples on ni.com.
Hope this helps
,
Marcus G.
National Instruments
I understand that you'd like to do digital I/O on a PCI-6534. All of the scenarios you outlined in your question should be possible with this board.
1. You can configure some lines of a port to output signals while others input signals by using a line direction map.
2. You can do patterned I/O on the same port at the same time.
I'm not sure what software you're using to interface with the 6534, but if you happen to be using LabVIEW, then there is a shipping example which demonstrates the basics of patterned I/O on a single port of a DIO board. The example is called Digital Multi-line Direction (E).vi and can be found in Help >> Find Examples. If you are using another programming language, then there may be examples on ni.com.
Hope this helps
,
Marcus G.
National Instruments
03-19-2004 10:42 AM
Options
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report to a Moderator
Hi-
Thanks for your response. My situation has changed a bit. I need to do patterned output and input at the same time. I am using LabWindows CVI v6. I tried to set this up, and I received an error that the port was already assigned to a group, when I tried to assign it to both input and output groups.
-Scott
Thanks for your response. My situation has changed a bit. I need to do patterned output and input at the same time. I am using LabWindows CVI v6. I tried to set this up, and I received an error that the port was already assigned to a group, when I tried to assign it to both input and output groups.
-Scott
cous
Member
03-22-2004 10:36 AM
Options
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report to a Moderator
Hey Scott,
After futher research into the matter, it appears that the 653x devices only perform bit assigned I/O when they are in the unstrobed (software-timed) I/O mode. You can find more information about this mode and how to set it in the 653x user manual page 2-1. If you don't have a hard copy of the manual, you can access it at the following url:
http://digital.ni.com/manuals.nsf/websearch/EDE443F5C700373A862569B90072D26F?OpenDocument
Thanks for contacting NI, and good luck!
Marcus G.
National Instruments
After futher research into the matter, it appears that the 653x devices only perform bit assigned I/O when they are in the unstrobed (software-timed) I/O mode. You can find more information about this mode and how to set it in the 653x user manual page 2-1. If you don't have a hard copy of the manual, you can access it at the following url:
http://digital.ni.com/manuals.nsf/websearch/EDE443F5C700373A862569B90072D26F?OpenDocument
Thanks for contacting NI, and good luck!
Marcus G.
National Instruments
