In SX Microcontrollers, SX/B Compiler and SX-Key Tool, rremme wrote:

Thanks for the quick response!

Here's an abreviated version of the code. When the sensor is taken high, the interrupt is triggered and the IF statement within the interrupt turns on LED1. But the same IF statement below in the main program won't turn on LED2.

DEVICE         SX28, OSC4MHZ, TURBO, STACKX, OPTIONX
FREQ            4_000_000

Sensor	PIN	RB.0 INPUT INTR_RISE	
LED1		PIN	RA.0 OUTPUT
LED2		PIN	RA.1 OUTPUT	
Counter	VAR	Byte			

INTERRUPT NOCODE

ISR_Start:

IF Sensor = 1 THEN
  Counter = 60
  IF Counter <> 0 THEN  
    LOW LED1
    Pause 200
    HIGH LED1
  ENDIF
ENDIF   		

ISR_Exit:
  WKPND_B = %00000000			
  RETURNINT                               

PROGRAM Start

Start:

WKED_B = %11111000 			
WKEN_B = %11111000			
WKPND_B = %00000000
HIGH LED1
HIGH LED2			
Counter = 0

Main:

IF Counter <> 0 THEN
  LOW LED2
  Pause 200
  HIGH LED2	
ENDIF
PAUSE 5000
Counter = 0
GOTO Main[code]

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