Unable to open probe index 1

[crimsonsnow]

My FRDM-MCXN947 development board suddenly can't debug today, the error is as follows

Unable to open probe index 1.
Error: Probe not open

Unable to open probe index 1.
Error: Probe not open

Error: Probe not open

at com.nxp.mcuxpresso.core.debug.support.linkserver.redlink.client.RedlinkServerClient.checkServerReply(RedlinkServerClient.java:227)
at com.nxp.mcuxpresso.core.debug.support.linkserver.redlink.client.RedlinkServerClient.openByIndex(RedlinkServerClient.java:871)
at com.nxp.mcuxpresso.core.debug.support.linkserver.emulators.jtag.AbstractJtagDiscovery.ideConnect(AbstractJtagDiscovery.java:215)
at com.nxp.mcuxpresso.core.debug.support.linkserver.emulators.jtag.AbstractJtagDiscovery.connect(AbstractJtagDiscovery.java:197)
at com.nxp.mcuxpresso.core.debug.support.linkserver.emulators.jtag.AbstractJtagDiscovery.discover(AbstractJtagDiscovery.java:156)
at com.nxp.mcuxpresso.core.debug.support.linkserver.emulators.TargetDiscovery.jtagDiscovery(TargetDiscovery.java:454)
at com.nxp.mcuxpresso.core.debug.support.linkserver.launch.LaunchScriptUtils.getEmulatorInfo(LaunchScriptUtils.java:257)
at com.nxp.mcuxpresso.core.debug.support.linkserver.launch.LaunchScriptUtils.init(LaunchScriptUtils.java:497)
at com.nxp.mcuxpresso.core.debug.support.linkserver.launch.LaunchScriptUtils.<init>(LaunchScriptUtils.java:165)
at com.nxp.mcuxpresso.core.debug.support.linkserver.launch.LaunchScriptUtils.<init>(LaunchScriptUtils.java:152)
at com.nxp.mcuxpresso.core.debug.support.linkserver.services.TargetDiscoveryService.getTargetDiscovery(TargetDiscoveryService.java:138)
at com.nxp.mcuxpresso.core.debug.support.linkserver.override.LSFinalLaunchSequence$TargetDiscoveryJob.run(LSFinalLaunchSequence.java:129)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

I have try to change the cable, refresh the driver , use different IDE, close the MCfee software

please help me with solving the problems, thanks

[ZhangJennie]

Hi crimsonsnow,

FRDM-MCXN947 integrates MCU-Link on board debug probe. Please follow below steps to update the debug probe firmware to the latest.

https://www.nxp.com/document/guide/getting-started-with-the-mcu-link:GS-MCU-LINK

Please try both Jlink and CMSIS DAP interface, if either of them works.

On IDE side, I suggest you creating a new project under a new workspace to avoid old associations.

Hope this helps,

Jun Zhang