[ABANDONED] Jlink Vsupply Pin2 voltage

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  • [ABANDONED] Jlink Vsupply Pin2 voltage

    After sending Jlink command "power on perm", the voltage at Jlink Pin2 (Vsupply 20 Pin) output should be 5.0 Volts, but it is output 0 volt.
    When I connect Pin 2 with pin19(DBGACK), then Pin 2 output is 5.0Volt.

    Why should Pin 19 connect to Pin2 to output 5V volt?
  • Hi,

    You need to be more specific regarding what connector you are measuring on.

    Do you have a J-Link model with the 20-pin 0.1" connector?
    Then 5V is output on pin 19.
    wiki.segger.com/UM08001_J-Link…e#20-pin_J-Link_connector

    If you have a model with the 19-pin 0.05" connector (like a J-Trace PRO), 5V is output on pins 11 & 13.
    wiki.segger.com/UM08001_J-Link…2FSWD_and_Trace_connector


    Under no circumstances it should be pin 2.
    Sounds like you have started counting pins on the wrong side of the connector.


    BR
    Alex
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