Beginning STM32: Developing with FreeRTOS, libopencm3 and GCC

© Warren Gay 2018

Warren GayBeginning STM32https://doi.org/10.1007/978-1-4842-3624-6_16

16. PWM with Timer 2

Warren Gay¹ 

(1)

St. Catharines, Ontario, Canada

 

The STM32 family has a complex array of options available for operating timers. The STM32F103 has general-purpose timers TIM2, 3, 4, and 5 and then advanced timers TIM1 and TIM8. The general-purpose timers have plenty of features so you won’t need to reach for the advanced ones.

This chapter will demonstrate one of the frequently sought-after applications of a timer—that of driving a PWM (Pulse Width Modulated) servo motor. Figure 16-1 illustrates one example of a typical servo motor, which was pulled out of service.

Figure 16-1

A typical RC (Radio Controlled) servo motor (PKZ1081 SV80)

PWM Signals ...