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Altera_Forum's avatar
Altera_Forum
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16 years ago

What's up with dualcore system?

I have built a single cpu system with onchip memory, it works well.

However,after adding another cpu and another jtag to the SOPCBuilder, and the total component of it is : cpu*2,jtag*2,onchip RAM.

running a helloworld_small on one cpu,

it appears

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)

in the console

but not continue

PS.my quartus edition is 8.1

when running the same project in quartus 7.2 ,it seems work.

2 Replies

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

    A couple of things to watch out for:

    1 - Are you connecting to the right CPU. If you are using the software build tools or nios2-studio, you can get yourself into trouble here. You may have to manually specify in the debug profile which jtag node id to use when connecting to the processor.

    2 - Are you using a jtag uart? If so which cpu is connected to it?

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

    --- Quote Start ---

    A couple of things to watch out for:

    1 - Are you connecting to the right CPU. If you are using the software build tools or nios2-studio, you can get yourself into trouble here. You may have to manually specify in the debug profile which jtag node id to use when connecting to the processor.

    2 - Are you using a jtag uart? If so which cpu is connected to it?

    Jake

    --- Quote End ---

    I use two cpu+ two jtag + onchip memory, and all the settings in the NIOSII IDE are correct. However, the dual core runs properly in quartusII 7.2, but not in QuartusII 8.1.

    What's up?