Send the following on WhatsApp
Continue to ChatTIM3 on the STM32 - an introduction https://micromouseonline.com/2016/02/02/tim3-on-the-stm32-an-introduction/
TIM3 on the STM32 - an introduction https://micromouseonline.com/2016/02/02/tim3-on-the-stm32-an-introduction/