Forum Discussion
Altera_Forum
Honored Contributor
Honored ContributorAvalon-MM Master reading
Hello, I am trying to run Avalon-MM master to read data from memory chip, so I've written a code accessible here: http://paste.org/41475 When I try to count data when readdatavalid is asserte...
Altera_ForumHonored Contributor
Honored ContributorHard to tell what's going wrong here without seeing what is controlling the memory writing. The read statemachine looks safe to me so I wonder if your logic is issuing a read and write simultaneously since that could easily cause the readdatavalid to never return. I highly recommend you simulate your logic since that would make it really easy to find a simultaneous and other bugs.
I would also evaluate whether or not it would be easier to split your reading and writing into separate masters.
