Double Echo in JLinkRTTClient

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    • Double Echo in JLinkRTTClient

      With recent versions of JLinkRTTClient every keyboard input appears doubled. With an older version of the software (6.18d) I do not see this issue. I am seeing this when using RTT with several different SDKs (Nordic nrf5 v12, v15, and zephyr). The behavior is the same with RTT Client + JLinkGDBServer + GDB or JLinkExe + RTT Client. Is there a way to revert to the old behavior without downgrading?
    • Hello,

      Thank you for your inquiry.
      Such an issue is not known to us.
      We tried to reproduce the behaviour using an RTT sample in Embedded Studio + RTTClient V6.40 and there was no double echo, see image attached.
      Which J-Link software version are you using?
      Could you send a screenshot that shows the issue you are seeing?
      What are the steps to reproduce the behaviour?

      Best regards,
      Nino
      Images
      • Capture.PNG

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    • For the following, I'm using: J-Link tools V6.41a on Ubuntu 18.04

      I have reproduced in multiple configurations:
      Using a Nordic PCA10040 (nrf52832 dev board) with on-board J-Link, I can erase, start JLinkExe, start JLinkRTTClient, and any input is echoed twice.

      More illuminating, if I flash an example from the Nordic nrf sdk based on zephyr, the doubling is present, however command inputs are received correctly.


      I have also seen this with the most recent non-beta 6.40 version.