Help with code: Conditional Operator "AND"

TonyA

I'm working on some code that goes like this:

RctimeVal = Reading from a force sensitive resistor

IF RCtimeVal = x
"and then"
RctimeVal = y THEN
Do This
Else
Do Nothing

Could the "AND" operator be used in place of my "and then" in the code above?

Thanks for any help.

Tony A

PJAllen

RCtimeValX CON 420
RctimeValY CON 450
someval    CON 300
thisval    CON 500
thatval    CON 1000
 
Main:
  IF (RCtimevalX = someval) AND (RCtimevalY = someval) THEN scram1
  IF (RCtimevalX > thisval) AND (RCtimevalY < thatval) THEN scram2
  GOTO main
 
scram1:
  end

scram2:
  end

TonyA

My application is to use an FSR (force sensor), where if you touch it once only one event will occur (SEROUT [noparse][[/noparse]Midi note]), one midi note per touch. It will only produce another midi note if you touch it a second time.

I was wondering if something like this would work:

RCtimevalx Var BYTE
RCtimevaly Var BYTE

Main:
RCtime result = RCtimeValx 'reading from the FSR

RCtimevaly = ? 'don't know what to do here, or if this would work

IF (RCtimevalx = 0) AND (RCtimevaly > 0) THEN MidiOut
ELSE
SEROUT [noparse][[/noparse]Note off]

MidiOut:
SEROUT [noparse][[/noparse]Note on]
GOTO Main

Post Edited (TonyA) : 3/3/2006 2:21:06 PM GMT

kelvin james

I am not exactly sure what you are trying to do here, is it you want to set a note on / note off time duration? What is happening with your program now? If you are getting repeats, the timing of the program cycle may be faster than the cycle of the sensor . You could try a delay in the program loop, and reset the rc variable back to zero before the next loop. There are some other options, but need more info.

kelvin

TonyA

I have been thinking up a way to get one event (serout) per tap, using a tactile sensor. Basically I want to make a midi drum. So, I need to detect the state of a switch going from low to high. With the help of people here and from the book "Physical Computing" I came up with a modified version of the "edge detection" code. I'll post my results. Thanks.

Tony A