timer0 10ms setting check

[towlerg]

As your error is double, it's likely a problem with the 2:1 prescaler. Perhaps your setting of T0CON is being overwritten in one of the include files.

Or your clock is running at 16Mhz.

George

[HenrikOlsson]

Not sure it's got anything to do with your problem but flipping INTCON.5 does not start/stop TMR0 - it enables/disables the interrupt.

  Timer0_Count:
    
    INTCON.5 = 0                 ' STOP TIMER   <----- No it doesn't
   T0Count1 = T0Count1 + 1      ' inc counter on interupt flag
    TMR0H = $63               ' preset Timer 0 to a 10ms timer
    TMR0L = $C0                              
    INTCON.5 = 1                 ' START TIMER       <------ No it doesn't
@ INT_RETURN
    RETURN

Also, verify that your oscillator is actually running at the expected frequency. A simple LED blinking at 10Hz will tell you if it's off bu a factor of 2.

/Henrik.