SEGGER - Alex Administrator

Not sure if you understood Fabian’s post… “Sinply pulling nReset” is something that can disturb a debug (and so RTT) session. Pulling the reset pin may also reset the debug interface and cause a connection loss. Even if it does not, it may cause…

I do not specifically know the KV30 into much detail but have worked on many of the various Kinetis flash algorithms for J-Link. For all Kinetis I have encountered, the debug interface does not provide a way to get the backdoor key into the chip. The…

Are you serious? You are wondering that something prevents your target from entering low power modes after you KILL GDBServer and so do not even give it a chance to perform a clean shutdown & clearing debug bits that very possibly may inhibit low power…

Is the target a 3.3V one? If not, that’s the culprit, as the EDU Mini does not have level shifters and therefore only supports 3.3V debug signals. Another thing is TRST. Not sure if the AM33 59 needs that pin… BR Alex

Hi, Here you go: wiki.segger.com/J-Link_Command_Strings#JLinkDevicesXMLPath wiki.segger.com/J-Link_Command…ng_J-Link_Command_Strings

The EDU mini is not guaranteed to work with 1.8V targets, only with 3.3V ones. BR Alex

Sounds strange... Is it possible that the USB hub, the J-Links are connected to, is not powered externally or its external power supply is broken? This would cause the hub and all J-Links connected to it to be fed from the USB cable that goes to your…

Agree or not, your choice. Fact is: All J-Link flash loaders are designed to work with the natively memory-mapped space of the chip. For the RP2040 this is 16 MB, according to the datasheet. This means, J-Link will be able to program & verify 16 MB of…

Hi, If the memory-mapped region supports max. 16 MB, this is what your flash loader does support as well. All our flash loaders support max. what is mapped in the address space of the MCU. So what you describe is not a bug and no, we have not…

While RTT Stop-Mode in general might be working for the J-Link you use, stop-mode support on the RM48 may require further features that are specifically needed for RTT on RM48 in general, but these are not provided by the J-Link in use. In general, the…