How to use STM32F100 to measure a sinwave's frequency by input cature mode of TIM3 ?
How to use STM32F100 to measure a sinwave's frequency by input cature mode of TIM3 ? I would like to measure sinewaves of three frequency, 39Khz�?40Khz and 41Khz.Voltage level (0V-3V)The 39khz period is 25.64us.The 40khz period is 25us.The 41khz pe...