Timer SubRoutine

[towlerg]

what speed is the PIC clock? (thats what drives the timers in most cases)

[keithv]

what speed is the PIC clock? (thats what drives the timers in most cases)

I believe the 16F616 has options for either 4MHz or 8MHz internal clock.

[towlerg]

Using the Mikro timer calculator @ 8MHz

'Timer1
'Prescaler 1:4; TMR1 Preload = 15536; Actual Interrupt Time : 100 ms
 
'Place/Copy this part in declaration section
sub procedure InitTimer1()
  T1CON	 = 0x21
  TMR1IF_bit	 = 0
  TMR1H	 = 0x3C
  TMR1L	 = 0xB0
  TMR1IE_bit	 = 1
  INTCON	 = 0xC0
end sub
 
sub procedure Interrupt()
  if (TMR1IF_bit) then
    TMR1IF_bit = 0
    TMR1H	 = 0x3C
    TMR1L	 = 0xB0
    'Enter your code here
  end if
end sub

Of course the syntax is wrong but the values are correct. I couldn't get 1 second so I did 0.1 second. Same principle count to 10 for one sec and 50 for five sec.