Forum Discussion
Altera_Forum
Honored Contributor
7 years agoI assume you are talking about accessing using Nios. If so for starters you have a typo, that should be IOWR and not IOWC.
Your memory probably has _S1 appended to the name. Macros such as these are defined in system.h so make sure to include it and when in doubt what the name is open that file and look for the macro definition.