Problems with installing Nios2 Linux

Hi,

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Thank you so much for making it clear. Now I changed the path to only the mmu toolchain. I can perform a build but when I load it to the FPGA nothing displays. What can it be?

$ nios2-download -g newzImage Using cable "USB-Blaster ", device 1, instance 0x00
Pausing target processor: OK
Initializing CPU cache (if present)
OK
Downloaded 5709KB in 29.2s (195.5KB/s)
Verified OK                         
Starting processor at address 0xC1000000
developer@1604:/opt/intelFPGA_lite/16.1/nios2eds$ nios2-terminal 
nios2-terminal: connected to hardware target using JTAG UART on cable
nios2-terminal: "USB-Blaster ", device 1, instance 0
nios2-terminal: (Use the IDE stop button or Ctrl-C to terminate

I had to make these changes to make it build:

To build this thing on 64-bit ubuntu I had to do the following:

$ LIBRARY_PATH=/usr/lib/x86_64-linux-gnu

append the toolchain-mmu to your path

$ PATH=$PATH:/home/developer/altera/nios2-linux/toolchain-mmu/x86-linux2/bin

edit line 373 in /home/developer/altera/nios2-linux/linux-2.6/kernel/timeconst.pl

and remove the define so that the conditions looks like:

if (!@val)

comment out line 2

//#define _POSIX_C_SOURCE 199309

in the file /home/developer/altera/nios2-linux/uClinux-dist/user/mtd-utils/36d8de81049c9c908740b690c664b5bd3703ccd6/serve_image.c

edit the file /home/developer/altera/nios2-linux/uClinux-dist/vendors/Altera/nios2/Makefile

and remove the references to syslog.conf and sc.cfg on line 12

Now the thing builds.

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Did you setup your hardware correctly? You need the system at least with Nios2 f-core, MMU, on-chip memory for the TLB exceptions, main memory, timer and jtag-uart. And also you must inform those base addresses and irq No. to your kernel for its configuration. Please refer to the next video for example.

https://www.youtube.com/watch?v=rxlyezof0rs

Kazu