Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

AXI interface in Qsys 11.1

Hello. I have a question regarding the use of AXI interconnect in Qsys 11.1. I have the VHDL component, which must communicate with NIOS processor through AXI interface. First of all,...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

--- Quote Start ---

It's beta so that normally means no documentation. My advice is unless you have an Altera FAE that is familar with the AXI support I would wait until it is formally released. If you created a peripheral that supports a limited subset of what is available in AXI I think it should be possible to have Avalon transactions reach the AXI side. The goal is to have AXI and Avalon based IP be able to move data back and forth but whether you can do that today even with simple transactions I'm not 100% sure myself (haven't attempted this).

--- Quote End ---

BadOmen:

Now that Altera has released 12.1 with SP1, does Qsys support complete AXI4 protocol? I have connected an AXI4 component to Qsys interconnect. I was able to do register accesses with out any issues, but burst transfers seem to have a problem.

Regards

Bhargav