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Altera_Forum's avatar
Altera_Forum
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18 years ago

the multiprocessor tutorial

Hi,

I am trying to follow the NIOS multiprocessor tutorial to bulid a 3 NIOS CPUs system. I make all things described in the tutorial but when I run the application "hello_world_multi.c" in the NIOS II multiprocessor collection , in the NIOS II IDE the terminal does not show messages from the different processors but I obtain sth like this:

nios2-terminal: connected to hardware target using JTAG UART on cable

nios2-terminal: "USB-Blaster [USB-0]", device 1, instance 0

nios2-terminal: (Use the IDE stop button or Ctrl-C to terminate)

ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ

Can anyone help me?? I don't know where is the problem?

Mouna.

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    18 years ago

    Do you have the jtag uart set as your standard input and output in your system library? A more serioius cause could be a stuck clock somewhere in the system. It wouldn't be on the NIOS but possibly a memory interface.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    17 years ago

    I have seen those characters when the nios2-terminal gets into a corrupt state. Try deleting the jtagserver and nios2-terminal processes with Windows Task Manager (via ctrl-alt-del), after having exited the IDE and any Nios II command shells (a reboot wouldn't hurt either). You can also try using the pre-built multiprocessor hardware design to rule out any SOPC Builder design errors, available on the Nios II Multiprocessor Design Example web page, at http://www/support/examples/nios2/exm-multi-nios2-hardware.html (you will need a 2c35 or 2s60 Nios Development board to try the prebuilt reference designs).