nios2 ubuntu printf problem

[Altera_Forum]

Hello, 

I am facing with a problem when using eclipse-Nios2 on ubuntu. I have 10.1 version of nios2. even within the simplest hello world software i cannot get anything out of the "printf" function. I tried adding a line of "fflush(stdout);" after printf as suggested in some forums. But it didn't help.  Does anyone know what would be the problem and how to solve it? By the way, I tried with alt_printf, alt_putstr and many others, none of them worked :(

[Altera_Forum]

are you using a custom hardware design or a ready made one? Are you sure the nios2 terminal is active and connected to the target?

[Altera_Forum]

hi Daixiwen, 

thanks for your answer.  i'm using a custom hardware design. what to do you mean by the activation of nios2-terminal?

[Altera_Forum]

by the way the design and also the printf command works perfect on nios2 on windows. it is only the problem of the version of the ubuntu.  

anyone has any idea?

[Altera_Forum]

Check in Eclipse that it is set up correctly to open a nios2 terminal after the software has been uploaded to the nios2. Does the upload work without any errors?

[Altera_Forum]

When I run the software I got errors like 

 "An exception occurred while dispatching debug events." "The proxied handler for "com.altera.sbtgui.project.commands.SystemConsoleHandler' could not be loaded" "An exception stack trace is not available." "CPU master group not set." "CPU architecture type not set." "The SOPC design does not contain a CPU of a supported architecture." "CPU module not set." "SOPC design not set."  Since the software works except printing the register values, I didn't care for these errors. Can the second error be related with the printing problem?

[Altera_Forum]

I've never seen those error messages so I've no idea where they come from. If eclipse can't launch a terminal to communicate with the JTAG Uart, try to run it from a separate terminal window (nios2-terminal from any shell prompt)

[Altera_Forum]

Hi, 

I am having the same errors. Have you solved the problem? How did you solve it? Thank you