MrDEB
Well-Known Member
ordering parts for the air cannon project but in a quandry about crystal and capacitors.
my code :
Device = 18F452
Clock = 40
Config Osc = HSPLL
I almost ordered 40mhz crystals but learned that using the HSPLL it multiplies by 4 so I need 10mhz crystal.
but which one?
At Mouser it has two types HC49us or CSA-309
am assuming one is more accurate??
then capacitors
ceramic 22pf ok or is there a better choice?
my code :
Device = 18F452
Clock = 40
Config Osc = HSPLL
I almost ordered 40mhz crystals but learned that using the HSPLL it multiplies by 4 so I need 10mhz crystal.
but which one?
At Mouser it has two types HC49us or CSA-309
am assuming one is more accurate??
then capacitors
ceramic 22pf ok or is there a better choice?