Intel® Quartus® Prime Software
Intel® Quartus® Prime Design Software, Design Entry, Synthesis, Simulation, Verification, Timing Analysis, System Design (Platform Designer, formerly Qsys)
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System console closes channel

Altera_Forum
Honored Contributor II
2,481 Views

I have a system console running to control my system via a Jtag -> Avalon MM Master, and it runs fine. But occasionally after I have configured my parameters and I try and read back some status it says "Channel closed". 

 

In full: 

error: master_read_32: com.altera.systemconsole.core.services.ChannelClosedException: Channel closed while executing 

"master_read_32 $jtag_master2 0x800 16" 

 

Any clues? Is this normal? Is something else interfering? Would an OpenCore Plus license being managed using the same USB-Blaster->Jtag connection interfere? 

 

Struggling to find a reason. 

 

The core that was configured still runs though, so it's not reset things or similar.
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Altera_Forum
Honored Contributor II
1,601 Views

same here. any thoughts?

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PareshKJoshi
Beginner
1,073 Views

Try by reducing the jtag speed..
Reducing the jtag speed worked for us.

For example : With only 1 single USB blasterII plugged this will be, to make jtag Frequency 6MHz.

>jtagconfig --setparam 1 JtagClock 6M  

 

Paresh K. Joshi

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