How to setup STM32WB timer to 1500kHz?

[MM..1]

Exist some internal way to do this ? Itry this , but clock config for CPU2 must be 32MHz ...

[Remy ISSALYS]

Hello,

According to the following formula for PWM frequency, there is no possibility to reach a frequency of 1500 kHz.

The closest frequency which can be setup is 1,52381 MHz with F_tim = 32 MHz, PSC = 0 and ARR = 20.

Best Regards

[MM..1]

CPU1 timer is clocked 64 and this formula is source for question.

I mean A is possible change clock to other value?

B is way to generate 1,5M to pin , then connect back to timer clock input...

[Remy ISSALYS · Accepted solution]

Hello,

Unfortunately, is not possible to do that.

Best Regards

[Tesla DeLorean]

In other companies people make frequency generators with phase adders / accumulators, ie NCO/DDS

These are incredibly simple and flexible, got ASICs from the 1990's using this technique for accurate/flexible baud rate generators.