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timerstm32clock
Ken Lin
Ken Lin

Reputation: 1055

STM32 TIM1 Internal Clock (CK_INT)

enter image description here According to the datasheet snippet above, TIM1 can be clocked by the internal clock (CK_INT). What is this internal clock? I have a feeling that it's just the APB1 Timer Clocks (Mhz) in the below clock tree, but is that correct? Why is it called an internal clock in the datasheet? enter image description here

Upvotes: 2

Views: 3270

Answers (1)

followed Monica to Codidact
followed Monica to Codidact

Reputation: 8069

From the 48MHz limit I'm assuming it's an STM32F0 series MCU.

The clock tree is documented a few chapters back, in Reset and clock control (RCC) / Clocks.

enter image description here

Why is it called an internal clock in the datasheet?

Because it is, well... internal. As opposed to an external clock, which is coming from an external source.

Upvotes: 2

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