AN557 fra Microchip

Her er et udklip fra denne AP - er der ikke noget galt her ?

;The clock speed is 4.096Mhz. Dividing internal clk. by a 32 prescaler, ;the TMR0 will be incremented every 31.25uS. If TMR0 is preloaded ;with 96, it will take (256-96)*31.25uS to overflow i.e. 5mS. ;end result is that we get a TMR0 interrupt every 5mS.

Hvis ikke - er der så én, som liiige vil give en forklaring på tallene ?

Mvh KS

Reply to
KS
Loading thread data ...

Nu er jeg ikke PIC ekspert, men er den interne clock ikke extern clock/4, for så passer tallene da udemærket.

Reply to
HKJ

Alt passer, idet den externe clock (xtal frekvensen) deles med 4 til at give den interne clock

Bo //

Reply to
Bo Bjerre

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.