SEGGER - Alex Administrator

Did you try the debug build of your project and step through it? Does that work?

Hello, We have added support for the BBC micro:bit V2 (separate firmware image was necessary): segger.com/downloads/jlink/#BBC_microbit Landing page, wiki etc. are all going to be updated during next week. BR Alex

Maybe this helps: wiki.segger.com/UM08001_J-Link…flash_contents_at_runtime

Just because a standard allows it, it does not have to make sense to do it. It makes system bus access only half-way useful and not really a replacement for access via the CPU. So far *all* other implementations we came accross so far have implemented…

Hi, No, you are not correct. If you write a open flash loader for this, you can use J-Flash. It is just that we do not have such a loader available out-of-the-box for your setup. BR Alex

Hi, What you are using is a NAND flash. NAND flashes are not memory mapped accessible, so you need a customer flash loader to access them (for read & program). While memory mapped parallel CFI NOR flashes are somewhat standardized reg. their command set…

We used a different memory offset because we did not have your target in house. We also currently do not see why the address of the instruction should have any effect. However, we will check. Can you please let us know what connectors and what pinouts…

If it was working before, you have probably flashed something into the MCU that inhibits debugger connections. Are you working with an eval board or custom HW? If custom HW: Do you have connected the reset pin of the MCU to J-Link? If not: Can you…

Hello, We investigated and discussed this internally. With the current build setup and adding support for the J-Link GUI applications under Linux ARM also, we had to drop ARMv6. For now, there are no plans to bring it back because ARMv6 based Raspberry…

Hi, VCOM cannot be used in parallel to JTAG. If you use SWD instead of JTAG, you can use VCOM in parallel. Reg. the big connector: How about this? segger.com/products/debug-prob…rs/10-pin-needle-adapter/

Hi, Thanks for bringing that to our attention. Actually, the software is build on ARMv8-A based systems (Rpi 4). However, it was not intentional to break ARMv6 support for the 32-bit version. We will check that. BR Alex

The xc command is probably not the correct way. GDB Server is basically a translator from GDB to J-Link and takes care of the flash programming on certain memory writes. ELF file loading etc. are all more GDB things. Maybe this is of any help: …