Critical Issue
Description
If the Nios II processor’s cpu.data_master port
is not connected to all program memories (memories to which the
.elf file is downloaded) the software project fails
to run on Nios II hardware.
Failure to connect cpu.data_master to all program
memories is a design error that the Nios II Software Build Tools
(SBT) does not detect.
Resolution
Connect cpu.data_master to all program memories.