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

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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

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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?