Forum Discussion

JanFranken's avatar
JanFranken
Icon for New Contributor rankNew Contributor
3 years ago
Solved

NIOS only boots after nios2-terminal connects

I generate a .jic file and download it into the EPCS64 device. However once the FPGA starts up, the NIOS does not boot. Only when I start the nios2-terminal on the PC does the NIOS boot. Any...
  • JanFranken's avatar
    JanFranken
    3 years ago

    Hi Kelly,

    In our case the solution was to remove the JTAG Debug UART and move the stdout/stdin/stderr to a standard UART.

    The NIOS now boots from startup without waiting for the nios-terminal to connect.

    Thank you,

    Jan.

KellyJialin_Goh's avatar
KellyJialin_Goh
Icon for Frequent Contributor rankFrequent Contributor
3 years ago

Hi Jan,

The nios2-terminal command allows you to monitor stdout, stderr or both and to provide input to a NIOS II processor subsystem through stdin.


The EPCS is not directly addressable. You will need to get a small boot loader program and load it into an embedded memory and set the embedded memory as the reset vector.


Here is also a link to check out on booting methods of the NIOS II processor.

https://www.intel.com/content/www/us/en/docs/programmable/683689/current/processor-booting-methods.html


Regards,

Kelly