I have designed and assembled a PCB. All connections are fine and leds are blinking when i open the CUBEMX. But I don't know what to do after this point. Do I need to put some drivers before using DFU? If so, i don't have an ST-LINK Programmer how can i use the only input for this pcb (which is PB11,PB12 as AN2662 suggests). Its also interesting that device is responding to CubeMX . Does device has any code in it?
MCU : STM32F405RGT6