Hi,
May i know what is the actual functional of capacitor that we use in the crystal circuit? for example 2 22pf are using in connect between 2 terminal of crystal to Gnd.
I remembered last time my friends take wrong value of the capacitor and connected to the crystal.As a result, the microcontroller is never getting work until he found out the problem.
From the datasheet, it juz say that for higher capacitance that we use, the re is more stability of oscillator but also increase the the start-up time. Unfortunately, it did not say why must use or real purpose of this capacitor.
Hope anyone know can share the discussion here.
Thanks
regards,
sysysy.
May i know what is the actual functional of capacitor that we use in the crystal circuit? for example 2 22pf are using in connect between 2 terminal of crystal to Gnd.
I remembered last time my friends take wrong value of the capacitor and connected to the crystal.As a result, the microcontroller is never getting work until he found out the problem.
From the datasheet, it juz say that for higher capacitance that we use, the re is more stability of oscillator but also increase the the start-up time. Unfortunately, it did not say why must use or real purpose of this capacitor.
Hope anyone know can share the discussion here.
Thanks
regards,
sysysy.