Tick Rate LCP11u68

leechen — Mon, 14 May 2018 03:54:39 GMT

#define TICKRATE_HZ1 (10000)

SysTick_Config(SystemCoreClock / TICKRATE_HZ1);

what difference does it make for different tick rate setting? for example, does it run slower if I set TICKRATE_HZ1 to 10 comparing to setting TICKRATE_HZ1 to 10000?

Re: Tick Rate LCP11u68

victorjimenez — Wed, 16 May 2018 16:16:13 GMT

Hello Lee,

If you set the TICKRATE to 10 it will run slower than if you set the TICKRATE to 10000. If you enter to the function SysTick_Config you will see that the value of SystemCoreClock / TICKRATE_HZ1 is the number of ticks you put in the RELOAD Register. So if you put a big value, for example SystemCoreClock / 10 it will run slower than if you put a smaller value (SystemCoreClock / 10000) because this value corresponds to the number of ticks necessary to shot the interrupt of the SysTick. Higher the number, slower the SysTick and vice versa.

Hope it helps!

Victor.

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