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Redlink exception: Cannot write to server: not open

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Redlink exception: Cannot write to server: not open

4 周之前
647 次查看
schafbo
Contributor III

I'm not able to program using LinkServer. I've been using it for months until this week (no recent updates, changes in configuration), so I suspect there are IT issues preventing the program from running. However, I've been told that there isn't anything blocked on the firewall. If it is true that the firewall is preventing redlinkserv.exe from running, I'm hoping there is some way to prove that this is indeed the problem.

When I program, MCUXpresso will stay on "Trying: LinkServer" continously until finally showing the error message attached:

RedlnkServerException
Reason: Cannot write to server: not open

 

 

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3 周之前
525 次查看
luis_maravilla
NXP Employee
NXP Employee

Hello,

Could you help us share more details about your setup: MCUXpresso version, OS, Device, debug probe.

In this community post a similar problem is described, could you help us try the recommendation mentioned here and let us know if that work for you.

RedlinkServerException Cannot write to server: not open - NXP Community

Best Regards Luis,

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2 周之前
294 次查看
schafbo
Contributor III

I believe the issue is firewall related, and I'm trying to get the application white-listed.

I can't actually get redlinkserv.exe to do anything, so when I click the icons the IDE won't respond. 

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2 周之前
220 次查看
luis_maravilla
NXP Employee
NXP Employee

Hello,

Could you kindly check with your IT team if there are any security that might be blocking USB port access on your machine?

In certain scenarios, USB connectivity is limited by IT for security purposes.

Since you indicated that the LinkServer was functioning previously.

 

Other option is, if a debug operation fails or its not properly shut down, or a crash occurs, it is possible that one or more of these processes are still running making a new debug connection fail. Could you help us try the button "Clean Up debug" in MCUXpresso IDE, to kill all low-level debug executables.

luis_maravilla_1-1778090635936.png

This information is from MCUXpresso IDE User Guide Chapter 13.7.3

Could you help us confirm if your device appears correctly in Device Manager? And if the drivers are updated?

Could you verify the voltage on the SWD and share it with us please?

Best Regards

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