Continuous Loop

fzeitgeist

Hi Everyone. I am trying to run a continuous loop unless some one presses a key on a keypad.

Lets say I am moving a motor for 49 seconds. If someone presses a key within those 49 secs. the motor stops, otherwise it should go to a different subroutine after completing the 49 secs. cycle.

I tried using the SERIN command with {Timeout,Tlabel,} syntax but it does'nt seem to work.
Here is what I have

wait_for_key:

SERIN Rx, Baud, 49000, continue , [noparse][[/noparse]temp]
return


'' 49000 seconds = Timeout
'' continue == go to this subroutine if no key pressed

Paul Baker

I think that the·BUTTON command is a better fit for your application than SERIN, but you will need to implement your own timeout function.

Newzed

You didn't show the code for running the motor, but let's assume it is something like this:

HIGH 0········· 'turns motor on
for x = 1 to 98
pause 500
IF·in1 = 0·THEN quit
next
GOTO next task

quit:
LOW 0
'do something else

The for/next loop will run the motor for 49 seconds - 98 x 500.

If Pin 1 is taken low the motor stops.· Resonse to the LOW pin 1 will be .5 seconds.· If that is not quick enough change the for/next loop to 196/250.· Then it will respond in .25 seconds.

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Sid Weaver
NEW! 4 MB EEPROM

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