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

You need to use GOTO
 


[code]
'==========================================================================
' INTERRUPT
' -------------------------------------------------------------------------

 

ISR_Start: 

  GOTO ISR_Code
  
'=========================================================================

PROGRAM Start
'=========================================================================

' -------------------------------------------------------------------------
' Program Code
' -------------------------------------------------------------------------

READKEY SUB 0 ' <<< Is this in the right place?

Start:
TRIS_Keys = %1111_0000 ' refresh IO state
Keys = %0000_0000 ' Set Key Row Drive low for WKED
WKED_B = %1111_1111 ' Falling edge detect
WKEN_B = %0000_1111 ' Use bits 4-7 for inputs
ST_B = %0000_1111 ' Bits 4-7 are Schmitt Trigger Inputs

'...

'-------------------------------------------------------------------------
 

  

ISR_Code: 

  

PULSOUT RA.0, 1000 'FLASH TEST LED
PULSOUT RA.1, 1000 
PULSOUT RA.2, 1000 

READKEY ' <<< THIS GENERATES COMPILER ERROR 'UNKNOWN COMMAND'
ISR_Exit:

Keys = %0000_0000 'Set Key Row Drive low for WKED
WakePend = %0000_0000 'CLEAR INTERRUPT PENDING FLAG.
RETURNINT

SUB READKEY
.
. 
.
ENDSUB


'============================================================= 
[/code]
Bean

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