STM32F303C8 datasheet(23/115 Pages) STMICROELECTRONICS

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STM32F303x6/x8

Functional overview

3.14.1

Advanced timer (TIM1)

The advanced-control timer can be seen as a three-phase PWM multiplexed on 6 channels.

They have complementary PWM outputs with programmable inserted dead-times. They can

also be seen as complete general-purpose timers. The 4 independent channels can be

used for:

•

Input capture

•

Output compare

•

PWM generation (edge or center-aligned modes) with full modulation capability

(0-100%)

•

One-pulse mode output

In debug mode, the advanced-control timer counter can be frozen and the PWM outputs

disabled to turn off any power switches driven by these outputs.

Many features are shared with those of the general-purpose TIM timers (described in

Section 3.14.2 using the same architecture, so the advanced-control timers can work

together with the TIM timers via the Timer Link feature for synchronization or event chaining.

3.14.2

General-purpose timers (TIM2, TIM3, TIM15, TIM16, TIM17)

There are up to three general-purpose timers embedded in the STM32F303x6/8 (see

Table 5 for differences), that can be synchronized. Each general-purpose timer can be used

to generate PWM outputs, or act as a simple time base.

•

TIM2 and TIM3

They are full-featured general-purpose timers:

–

TIM2 has a 32-bit auto-reload up/down counter and 32-bit prescaler

–

TIM3 has a 16-bit auto-reload up/down counter and 16-bit prescaler

These timers feature four independent channels for input capture/output compare,

PWM or one-pulse mode output. They can work together, or with the other general-

purpose timers via the Timer Link feature for synchronization or event chaining.

The counters can be frozen in debug mode.

All have independent DMA request generation and support quadrature encoders.

•

TIM15, 16 and 17

They are three general-purpose timers with mid-range features.

They have 16-bit auto-reload upcounters and 16-bit prescalers.

–

TIM15 has two channels and one complementary channel

–

TIM16 and TIM17 have one channel and one complementary channel

All channels can be used for input capture/output compare, PWM or one-pulse mode

output.

The timers can work together via the Timer Link feature for synchronization or event

chaining. The timers have independent DMA request generation.

The counters can be frozen in debug mode.

3.14.3

Basic timers (TIM6 and TIM7)

The basic timers are mainly used for DAC trigger generation. They can also be used as

generic 16-bit timebases.

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