How to re-configure the system clock by code in runtime?

[leon_titan]

Is there any way to re-configure or change the system clock by code in runtime?

[Giovanni]

Hi,

Only for some newest devices: G0, G4, L4+, WL. The procedure is quite complex and requires stopping and restarting all drivers affected by the clock change.

Giovanni

[leon_titan]

1. my board is stm32l4xx，can i use the stm32L4+'s code?
2. the clock is setuped in halInit() or chSysInit()? can i call that in runtime to re-configure the clock?

[Giovanni]

Hi,

On the L4 there is no support for dynamic clocking, L4+ is quite different and the code cannot be used.

It would be possible to do in L4 HAL the same changes done in L4+ HAL but I have no immediate plans for that, you may try to compare hal_lld.c and hal_lld.h.

Giovanni

[leon_titan]

OK, thx for reply, will try that.