OK, here is exactly what I did
Opened DE2_70_NIOS_HOST_MOUSE_VGA demonstration project in quarterus, then I opened SOPC builder and generated new ptf file and the recompile the project in quarterus.
Then I recompile kernel using the newly generated ptf file and configured the borad with new time linited sof file (I didnt close the window) below is the output:
Info: SRAM Object File DE2_70_NIOS_HOST_MOUSE_VGA_time_limited.sof contains time
-limited megafunction that supports OpenCore Plus feature -- Vendor: 0x6AF7, Pro
duct: 0x00A2
Info: *******************************************************************
Info: Running Quartus II Programmer
Info: Command: quartus_pgm --no_banner --mode=jtag -o p;DE2_70_NIOS_HOST_MOUSE_V
GA_time_limited.sof
Info: Using programming cable "USB-Blaster "
Info: Using programming file DE2_70_NIOS_HOST_MOUSE_VGA_time_limited.sof with ch
ecksum 0x00E3C873 for device EP2C70F896@1
Info: Started Programmer operation at Wed Apr 13 23:39:52 2011
Info: Configuring device index 1
Info: Device 1 contains JTAG ID code 0x020B60DD
Info: Configuration succeeded -- 1 device(s) configured
Info: Successfully performed operation(s)
Info: Ended Programmer operation at Wed Apr 13 23:39:56 2011
Please enter i for info and q to quit:
Then I run
nios2-download -g zImage
Output:
bash-3.1$ nios2-download -g zImage
Using cable "USB-Blaster ", device 1, instance 0x00
Pausing target processor: not responding.
Resetting and trying again: FAILED
Leaving target processor paused