Hi,
We are using a Segger JLINK to program a nrf5340 product using the SWD interface. We have been successfully programming units using a design where there is a 100k pullup resistor connected to the micro nRESET input and the nRESET pin on the Segger JLINK.
We recently had a hardware design change which removed the 100k pullup and inserted a push-pull buffer between the Segger JLINK nRESET and the nrf5340 nRESET. Is this allowed? Does the micro ever pull nRESET low?