Resolved! STM32CubeProgrammer Error: No STM32 target found!
I have a STM32F405RGT6 on a custom PCB and are using a ST-Link/V2 ISOL in my computer. A USB-Mini is conencted to the ST-Link and from the ST-Link I use RESET, SWCLK, SWIO and GND to my STM32. I have tried connecting to the ST-Link with the STM32Cube...