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Altera_Forum
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15 years ago

DE2-70 board Nios II USB problem

I got the error when i tried to run my C code in Nios IDE environment with Altera DE2-70 board.

My project is very simple (control the LEDs by the switches), everything seems fine, until I tried to run C code in Nios IDE

Here is my error log

>>Using cable "USB-Blaster [USB-0]", device 1, instance 0x00

>>Pausing target processor: not responding.

>>Resetting and trying again: FAILED

>>Leaving target processor paused

Please help me with this!

Thanks in advance!

8 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    This error is very common, one thing could be the reset_n of the processor, check if this signal is connected to VCC. If this doesn't work, try connectting the module Reset_delay to Reset_n from one of the examples shipped with the board. That work for me.

  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    --- Quote Start ---

    This error is very common, one thing could be the reset_n of the processor, check if this signal is connected to VCC. If this doesn't work, try connectting the module Reset_delay to Reset_n from one of the examples shipped with the board. That work for me.

    --- Quote End ---

    I have reset_n connected to VCC, can you show me how to do connect Reset_delay to Reset_n.

    Thanks so much!
  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    See the DE2_70_NIOS_HOST_MOUSE_VGA example, there it's the connection of reset_n to reset delay.

    A question: NIOS II IDE works with other examples like the one mentioned above? Just to make sure the NIOS II IDE is working.
  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    --- Quote Start ---

    See the DE2_70_NIOS_HOST_MOUSE_VGA example, there it's the connection of reset_n to reset delay.

    A question: NIOS II IDE works with other examples like the one mentioned above? Just to make sure the NIOS II IDE is working.

    --- Quote End ---

    I found the problem, and fixed it. The tutorial comes with the DE-70 board kit is not correct, the tutorial is old version for DE2-60 board. So as long as I followed the tutorial I will get wrong result and problem.
  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    Glad you made it, could u mention what was the problem so I know in case happens the same to me in some other time?

  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    Because the tutorial with incorrect the pin name variable, so we have to change it to correct one. For example, CLOCK_50 signal in tutorial should be iCLK_50, and so one. You could look at the DE2_70_pin assignment file, and you will find the correct pin name. FYI the user manual also wrong with the pin name

  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    --- Quote Start ---

    This error is very common, one thing could be the reset_n of the processor, check if this signal is connected to VCC. If this doesn't work, try connectting the module Reset_delay to Reset_n from one of the examples shipped with the board. That work for me.

    --- Quote End ---

    Can you show me how to connect reset_n to VCC?

    Thank a lot