AnsweredAssumed Answered

Frequency Measuring

Question asked by IN on Aug 20, 2015
Latest reply on Aug 24, 2015 by IN
Hi ,
Please i have to measure frequency from 1Hz to 3Khz with timer 1 (16bits)
My SysTick clk = 72Mhz, so i set the prescalor to (1000-1) .So i have a Counter Clock=72K
and than i can capture frequency starting from 1Hz. but the problem that i capture as a minimum a value=12362 which gives a frequency= 72k/12362=5.8hz # 1hz ! i can't understand why it can't capture less than 5.8hz