Type: Answers

Type: Errata

Area: Embedded

Error Running Nios II Project: ‘Downloading ELF Process failed’


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.


Connect cpu.data_master to all program memories.