Timer 2 Frequency

[dhiry2k1]

Posted on April 08, 2014 at 15:48

Hello everyone, 

I am trying to Set up timer with 1ms Tick value and it does not seems to be working correctly.  TIM_TimeBaseStructure.TIM_Period = TIMER_MAIN_1MS_VAL;   TIM_TimeBaseStructure.TIM_Prescaler = 2;  TIM_TimeBaseStructure.TIM_ClockDivision = 0;  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;Where  TIMER_MAIN_1MS_VAL = A410Clock Freq = 84Mhz. so the formula would be 1/84000000 = 1.1904e^-8 1.1904e^-8 *42000(A410) = .0005  prescalar is 2 so it become .001 means 1ms. But it doesn't seems to be working. Any help guys.. 1/ Clock Freq  #stm32 #stm32-timer-counter #stm32-timer

[Tesla DeLorean]

Posted on April 08, 2014 at 16:03

Values programmed into Prescaler and Period in the form N-1

Prescaler = 2 - 1; Period = 42000 - 1; (84000000 / 2) / 42000 = 1000 Hz

[dhiry2k1]

Posted on April 08, 2014 at 18:49Got it Clive :) Thanks a Ton