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  • [SOLVED] Are their serial limitations due to the internal buffer size w.r.t. the JLink VCOM?

    MrQuincle - - J-Link/Flasher related

    Post

    Hi, This issue seems to be due to the JLink: github.com/pyserial/pyserial/issues/563 It looks like if you send a buffer that is larger than a particular size through UART over the JLink (towards a nRF52 dev. kit), the receiving side gets garbage (starting with `USB`): Source Code (23 lines)See the linked issue for more details. Of course, we don't want to start using additional pins for hardware flow control. What are the limitations of the JLink? What's the size of the buffer used internally? w…

  • [SOLVED] RTT Client cannot connect to port 19021 anymore

    MrQuincle - - J-Link/Flasher related

    Post

    The RTT Client does not connect anymore in SEGGER J-Link Commander V6.46i (Compiled Jul 5 2019 16:56:47). Version V6.35g (Compiled Oct 19 2018 17:36:30). Shell-Script (18 lines) I'm honestly, too lazy to figure out which version still works and which doesn't. It's a pretty standard OS I use, Ubuntu 18.04. It's with the Nordic nRF52 dev kit (PCA10040). JLinkExe -Device nRF52832_xxAA -speed auto -If SWD -RTTTelnetPort 19021 JLinkRTTClient -RTTTelnetPort 19021 ss | grep '^tcp' | grep '127.0.0.1' is…