Basic Micro Studio Syntax Manual

RESUME
resume
Interrupts
This command is used to exit the Basic interrupt handler and return to the point in your program
where execution was interrupted due to an interrupt trigger.
Interrupt Example
The following example uses Time V and creates a counter that will blink an LED every second
regardless of what the program is doing. This is a very simple way to create a background task that
can easily indicate the device is still running.
;calculates the number of interrupts per 1/100th of a second
;as a fl oating point constant.
interval fcon MHZ/100/256/128
counter var fl oat
counter = 0.0
milliseconds var long
milliseconds = 0
TCRV0 = 0x03 ;Sets Timer V to count once every 128 OSC clocks
TCRV1 = 0x01
;Tells the processor where to jump to when the timer V
;overfl ow interrupt triggers.
ONINTERRUPT TIMERVINT_OVF,handler
ENABLE TIMERVINT_OVF ;enables the timer V overfl ow interrupt
ENABLE ;enables interrupts in general
main
if(milliseconds >= 500)then
toggle p0
milliseconds = milliseconds - 500
endif
goto main
handler
;this interrupt is executed once per 256*128 clock cycles
counter = counter + 1.0
if(counter>interval)then
counter=counter-interval
milliseconds = milliseconds + 10
endif
resume
207