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What's up with dualcore system?

Altera_Forum
Honored Contributor II
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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.
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Altera_Forum
Honored Contributor II
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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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Altera_Forum
Honored Contributor II
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--- 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?
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