States? or somehtign to that effect

[Nobody/Anonymous]

ok what I'm atempting to do is write a simple program that blinks some LEDs for now, i figure this will be the best way to learn. what i would like to do for example is:

''(solid light mode & default)
start:

     If PIN_4 = on then
     (do stuff once)
     goto mode_1
     end if

set PIN_2 on
goto start

''(blink light mode slow)
mode_2:

     If PIN_4 = on then
     (do stuff once)
     goto mode_3
     end if

set PIN_2 on
wait 500 ms
set PIN_2 off
wait 500 ms
goto mode_2    'go back to top of mode_1

''''(blink light mode faster)
mode_3:
     If PIN_4 = on then
     (do stuff once)
     goto Start
     end if

set PIN_2 on
wait 250 ms
set PIN_2 off
wait 250 ms
goto mode_3    'go back to top of mode_2

I havent got it working right and i think what it is doing is reading the button press to fast (skiping over modes) i dont think its even gettin back to the start.. i have tried to find info on how to fix it and all i find is ppl talkin about debounce?  what is debounce and how do i do it? if someone has an example of code that works like this and is willing for the world to see please help me out

[Nobody/Anonymous]

oops, this wasnt the problem with it i just screwed up re-typing it into the thread. it should look like this:

''(solid light mode & default)
start: 

If PIN_4 = on then
(do stuff once)
goto mode_2
end if

set PIN_2 on
goto start

''(blink light mode slow)
mode_2: 

If PIN_4 = on then
(do stuff once)
goto mode_3
end if

set PIN_2 on
wait 500 ms
set PIN_2 off
wait 500 ms
goto mode_2 'go back to top of mode_2

''''(blink light mode faster)
mode_3:

If PIN_4 = on then
(do stuff once)
goto Start
end if

set PIN_2 on
wait 250 ms
set PIN_2 off
wait 250 ms
goto mode_3 'go back to top of mode_3

[kent_twt4]

Not enough info to see where the problem is, can you post the whole code?  What errors are you getting?

A quick search or wiki will explain how to debounce your button or switch like http://www.ikalogic.com/debouncing.php

Please don't use 'If PIN_4 = On Then', it produces some ugly looking assembler.  Use, 'If PIN_4 On Then'.

If you look back to the 'Interrupt' post in help, I gave a crude debounce routine in GCBasic.  An internal pullup is setup for the button, and the pin is setup as an input.  In this configuration, your 'If PIN_4 On Then' should be changed to check for a low or 'If PIN_4 Off Then'.  Using the 'wait 10ms' gives the button time to settle into a steady logic condition.

When using a button as an input it should be in a defined state by pulling it up to Vdd or pulling it down to Vss with a 10k resistor.  If you have your button is pulled down to Vss then you can ignore my comments about 'If PIN_4 On Then'.

Be sure to comment out (do stuff once).  Good idea to use a goto start at the end of the code.