I am using STM32F469 Discovery board, I am using the clock at 180 MHz the AHB set it at 180 MHz also, APB1 at 45 and APB2 at 90. My question is it safe to configure the APB1 and APB2 to run at 180 MHz also, or it will be unstable?

[Tesla DeLorean · Accepted solution]

They won't run properly at 180 MHz

The TIM nominally run at APB x2

Why do you need them to run faster?

[bassem.saleh93]

I wanted to speed up the peripherals associated with these clocks such as ADC. I am trying to minimize the speed at which each peripheral is operating.

Yes, you are right I read in the datasheet that these are the max frequencies at which these buses can run at.