I want to generate a nanosecond delay on the STM32F407 µC, the closest delay I can have is 6ns using either TIM 9/10 or 11, because they work on a 168 MHz clock. But when I use an oscilloscope to visualize whether I successfully generated a 6ns delay...

Hello everyone,I am working on a project using the STM32F407 µC in the process of developing my code and documenting it I wanted to integrate Doxygen inside the IDE and I'm not sure if it's possible if yes I would appreciate it if anyone can show me ...