passing pin as arg to subroutine?

Ben Kirkpatrick

·· I'm kinda new to SX/B and was hoping there's a way to pass pins to a subroutine.· I've tried it a couple different ways, but run into compiler errors.· I tried both acting on __PARAM1 directly and passing to a temp VAR, but it doesn't seem to fit into Bit or Byte.· What is the internal shape of a pin definition?

For example there are four LEDs:

blue VAR RB.4
red VAR RB.3
green VAR RB.2
white VAR RB.1

FADEIN SUB 2 ' pin name and speed
FADEOUT SUB 2 ' pin name and speed
FLICKER SUB 2 ' pin name and duration

start_point:
FADEIN blue,50
FADEOUT white,10
FADEIN green, 100
' the end

FADEIN:
· for COUNT = 0 to 250
··· pwm __PARAM1, COUNT, __PARAM2
· next
· __PARAM1 = 1 ' leave it on
RETURN

' Or perhaps?

FADEIN:
· TEMPPIN = __PARAM1 ' what kind of data am I ?
· for COUNT = 0 to 250
··· pwm TEMPPIN, COUNT, __PARAM2
· next
· __PARAM1 = 1 ' leave it on
RETURN

PS: As a side note... anyone used SOUND to simulate a heartbeat?

Thanks.
--Ben

Bean

No you cannot use a variable for a pin.
In SX/B pins are NOT numbered like they are on the stamps.
When the PWM command is converted to assembly code the pin must be a constant.
You'll need to use a different PWM command for each pin.
Bean.

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