- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello,
I would like to edit the IRQ type (edge/level) for “Interface to User Logic”. What’s the standard IRQ type? Is there more information about this topic? I didn’t find something useful in the forum or in the web. It should also be possible to edit the IRQ type in a PTF file. Thanks for your help, niosIIuserLink Copied
3 Replies
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
The Nios II processor requires level triggered, active high, interrupts.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello wombat,
Thank you for this information. So there is no way to set up the IRQ inputs? Where did you get the information? Bye, niosIIuser- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
I don't know whether it's possible to get the interface to user logic to automatically convert edge triggered interrupts into levels, but its fairly easy to do it yourself.
You need to latch the fact that the interrupt has occurred and then write to a slave port register to clear your latched value. But you probably know that already (I'm stating the obvious in case others are reading this).
Reply
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page