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

I think I understand how interrupts work but I'm having difficulty calling a subroutine later in the program.  In other words, readI2C below is a subroutine that reads from an I2C RTC (these are borrowed Jon Williams MEMOUT and MEMIN routines).  temp4 is just the memory location.
 

Error given by the compiler is: "Invalid number of Parameters"

 

writeI2C is going to give me trouble too.

 

It seems odd that you have to declare the SUB calls AFTER the Interrupt declaration which may be why the compiler does not like those subroutine calls.  I need to use the read and write routines later in the program also so moving them before the Program Start does not solve the problem.

 

 

' -------------------------------------------------------------------------
  INTERRUPT
' -------------------------------------------------------------------------
ISR_Start:
   if Sensor = 0 THEN
      for temp4 = 0 to 10
         lcdChr = readI2C temp4
         writeI2C temp4 + 20
         pause 1
      next 
      SOUND Piezo, 80, 200 ' Audible Alert to say ready to get started
      pause DelayForBounce
   endif
RETURNINT ' {cycles} 

'========

   PROGRAM START

'========

readI2C   SUB 1

---------- End of Message ----------


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