[SOLVED] JTAG Isolator with J-Trace PRO

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  • [SOLVED] JTAG Isolator with J-Trace PRO

    Hi there, I'm attempting to utilize my JTAG Isolator (8.07.00 part number) with my J-Trace PRO using J-Link V6.14 and I'm having no luck getting power on the isolator from the emulator side. I execute the 'power on perm' command and see in the JLink control panel that the default power setting is on but when I plug in the isolator the power setting itself still shows off and I get no LED lit on the emulator side.

    If I try to manually turn the power on through the control panel as soon as I select the 'Power on' radio button in the 'Current State' frame the 'Power off' radio button gets reselected so it's like my J-Trace can't supply power. So not sure what is happening there. My J-Trace also does the same thing when I try to power a target board without the isolator also where everytime I select 'Power on' the radio button selection instantly goes back to 'Power off'.

    Does the isolator work with J-Traces? I know it isn't listed on the page but I figured since the J-Trace has the features of the J-Link it'd work.

    Thanks,
    Christian
  • Hi Christian,


    J-Trace Pro requires up two 2W (400mA current @5V) power in peak workload scenarios.
    Therefore J-Trace Pro does not and cannot support (target) power supply via Pin 19, as USB 2.0 only allows for a maximum power draw of 2.5W (500mA @ 5V).


    Best regards,
    Niklas
    Would you like to be added to the J-Link software update notification list, so you get informed automatically when a new version becomes available?
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  • Hi Christian,


    Thanks for the feedback!


    /Closed
    Best regards,
    Niklas
    Would you like to be added to the J-Link software update notification list, so you get informed automatically when a new version becomes available?
    Just write me a PM or in case you want to subscribe to it yourself, please use this link: Link
    Notification for J-Link, J-Link Debugger, SystemView & J-Scope: Link
    Notification for Embedded Studio: Link