nios2-terminal doesn't work but hyper terminal is working fine

--- Quote Start ---

Try only the basic command without parameters: nios2-terminal --uart

Verify the answer is:

nios2-terminal: connected to hardware target using UART on /dev/com1 at 115200 baud

Also make your test without running Hyperterm before, nor any other program possibly using serial ports. Maybe nios2 terminal can't access com1 because it is already in use.

You can even try with com2 or other, if you have spare ports.

--- Quote End ---

Thanks Cris72. I did get the answer of "nios2-terminal: connected to hardware target using UART on /dev/com1 at 115200 baud" using only "nios2-terminal --uart". But still I couldn't get the char transferred and displayed on the same command shell window as the nios2-terminal.....

This time I didn't start the hyper terminal at all. I started the computer and went directly to command shell ：）