General-Purpose Timers (Tim15/16/17); Tim15/16/17 Introduction; Tim15 Main Features - STMicroelectronics STM32F05 series Reference Manual

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18

General-purpose timers (TIM15/16/17)

18.1

TIM15/16/17 introduction

The TIM15/16/17 timers consist of a 16-bit auto-reload counter driven by a programmable
prescaler.
They may be used for a variety of purposes, including measuring the pulse lengths of input
signals (input capture) or generating output waveforms (output compare, PWM,
complementary PWM with dead-time insertion).
Pulse lengths and waveform periods can be modulated from a few microseconds to several
milliseconds using the timer prescaler and the RCC clock controller prescalers.
The TIM15/16/17 timers are completely independent, and do not share any resources. They
can be synchronized together as described in
18.2

TIM15 main features

TIM15 includes the following features:
● 16-bit auto-reload upcounter
●
16-bit programmable prescaler used to divid (also "on the fly") the counter clock
frequency by any factor between 1 and 65535
●
Up to 2 independent channels for:
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–
–
–
●
Complementary outputs with programmable dead-time (for channel 1 only)
●
Synchronization circuit to control the timer with external signals and to interconnect
several timers together
●
Repetition counter to update the timer registers only after a given number of cycles of
the counter
●
Break input to put the timer's output signals in the reset state or a known state
● Interrupt/DMA generation on the following events:
–
–
–
–
–
Input capture
Output compare
PWM generation (Edge-aligned mode)
One-pulse mode output
Update: counter overflow, counter initialization (by software or internal/external
trigger)
Trigger event (counter start, stop, initialization or count by internal/external trigger)
Input capture
Output compare
Break input (interrupt request)
Doc ID 018940 Rev 1
General-purpose timers (TIM15/16/17)
Section 16.3.15: Timer synchronization.
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