Posted on January 26, 2015 at 15:29Hi! I wonder, are clock divisions (like APB1Prescaler, APB2Prescaler, ADC Prescaler, Timers Clock Divisions, etc.) directly affect on power consumption? For example, to get a 1Hz timer, is it more efficient to use this:
[code]
// My APB1 Timers Clock is 24MHz
TIM_TimeBaseStructure.TIM_Prescaler = 2500 - 1; // 24000000/4 / 2500 = 2400
TIM_TimeBaseStructure.TIM_Period = 2400 - 1; // 2400 / 2400 = 1 Hz
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV4;
[/code]
than this:
[code]
// My APB1 Timers Clock is 24MHz
TIM_TimeBaseStructure.TIM_Prescaler = 10000 - 1; // 24000000 / 10000 = 2400
TIM_TimeBaseStructure.TIM_Period = 2400 - 1; // 2400 / 2400 = 1 Hz
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
[/code]
Thank you.
