STM32H743 - Setting External Event source for HRTIM Timer in CubeMX ?
There are 4 external events that can be chosen to trigger and reset individual counters of each HRTIM timer unit in STM32H743 MCU. CubeMX shows those events once the Event Configuration is chosen "Enabled" . Yet only Source 1 is active (allowed to be chosen) but the Source 3 that I need to connect internally to the TIM2 TRGO output is inactive (cannot be chosen) . Why? My attempts to use AI got strange results - after searching the STM documents AI concluded that CubeMX is limited , it allows only external on-pin connections and any internal connections must be manually coded in addition to the generated code.
If it is so then why does CubeMX show those other options yet does not allow to choose them? Or is there way to activate those options ?
Please anybody give me suggestion.
Note: the STM32CubeMX is the latest downloaded and installed yesterday. The MCU library pack is also current.

