delay

[rebiyarasheed]

sir,
how can i get a delay corresponding to .0025s in pic16f877A BY USING TIMER1.SIR,I want the correct timer value and the formulae of that,which oscillator is preferrable for that ,for crystal ,wheter there is any need to make any change inside the program,i am doing a project on multilevel inverters using a new topology.

 

[rebiyarasheed]

sir,
how can i get a delay corresponding to .0025s in pic16f877A BY USING TIMER1.SIR,I want the correct timer value and the formulae of that,which oscillator is preferrable for that ,for crystal ,wheter there is any need to make any change inside the program,i am doing a project on multilevel inverters using a new topology,i wan't the timer value in assembly language itself,can u help me for that.

 

[Gayan Soyza]

Load 63036 to TMR1 & set Pre scaller 1:1 on 4Mhz crystal.

 

[ericgibbs]

sir,
how can i get a delay corresponding to .0025s in pic16f877A BY USING TIMER1.SIR,I want the correct timer value and the formulae of that,which oscillator is preferrable for that ,for crystal ,wheter there is any need to make any change inside the program,i am doing a project on multilevel inverters using a new topology,i wan't the timer value in assembly language itself,can u help me for that.

hi,
Look here:
PIC Timer Calculator