I recently got myself a breakout board for the EBYTE E83-2G4M03S nRF5340 system on module. The thing is, it doesn't have a builtin debugger/programmer. It only has a USB-UART converter. In hindsight I probably should've bought the nRF5340 DK instead, but I hadn't done my due diligence. I was hoping I could program it with my ST-LINK V2, but from what I've read the nRF5340 can only be programmed with a SEGGER J-Link. I connected my ST-LINK to the SWD pins but I wasn't able to connect with STM32CubeProgrammer or the open-source stlink tool, though none of those tools even claim to support the nRF5340 anyway. Is J-Link really the only option, or are there other options for programming the nRF5340?
