Today, while debugging the Qiming STM32 development board, I encountered the problem of “NO ULINK Device found”. I tried many methods and changed debug->use to cortex-M/R J-LINK/J-Trace according to what netizens said. And JTAG is also scanned in the setting, but it still prompts “NO ULINK Device found”, as shown below

However, just setting this is not enough, but also select cortex-M/R J-LINK/J-Trace in Utilities->use.

Moreover, even if some friends have configured these, they may still download unsuccessfully. At this time, you need to see if the programming Algorithm of debug->use->setting->Flash download is fortunately consistent with the control selected by your development board. If it is inconsistent or empty at all, then please click Add to add your own board model, such as STM32F4XX