Reading if Pin is High or Low?

[Spindle]

thanks mister_e I am gonna try your first thing, this is for a motorized shade application so the next step is to have the position constantly store the absolute position in the PICs eeprom incase the main power is cut it won't be confused when power is applied again. Thats aways off, first thing is first, I shall try your solution!

[Spindle]

I tried your first solution and no go. When you flip the switch one way it still goes forward and when you flip the switch the other way it still goes reverse. But if you were to flip it from left to center it would still spin and NOT shut off. Same if you were to flip it from right to center. It would still move (the motor) until it gets to that absolute position. Some how I have to ustilize that _break pin because brining it low disables the H-Bridge. I have to do that somehow where if the switch is to the left or right its not pulled low. Mister E. It is wired up like your diagram in your previous posts.

[mister_e]

now it's me that need to sleep

what about the second option now???

[Spindle]

Second Solution doesn't work eaither.

The problem is i think the code is right (your first solution) its just mechanically/electrically/wirely I need your help on how I can wire up the SPDT switch to go low when its in the center disableing the H-Bridge. the _brake line would be low. But when the switch is thrown left or right the _break line can not be low so the H-Bridge is reenable. Right now it is wired up like your schematic.

[mister_e]

Well i this could be as easy as..

MAIN:
    IF (UP = 0) AND (DOWN=1) THEN
       serout FM, T9600 ,["W01 01 200", CR, LF] 'Write velocity limit value 
       serout FM,T9600,["P01 270000", CR, LF] 'Send MOVETO_ABSOLUTE command
       ENDIF

    IF (DOWN = 0) AND (UP = 1) THEN
       serout FM, T9600 ,["W01 01 200", CR, LF] 'Write velocity limit value 
       serout FM,T9600,["P01 0", CR, LF] 'Send MOVETO_ABSOLUTE command
       ENDIF

    if (DOWN = 1) AND (UP = 1) then ' <=== Switch is in central POS
       LOW Break_Pin
       endif
    
    goto MAIN
    End

Just connect a PIC i/o directly to the controller BREAK pin... this have to work... i guess.

or if you feel to add extra parts...
<img src="http://www.picbasic.co.uk/forum/attachment.php?attachmentid=392&stc=1">
Both should work now!

[Spindle]

mister_e. You Sir are brilliant! I went with your first method the only dif is to make it work i brought break_pin HIGH for the first two IF statements!

[mister_e]

yeah of course OR

    if (DOWN = 1) AND (UP = 1) then ' <=== Switch is in central POS
       LOW Break_Pin
       else
             HIGH Break_pin
       endif

BTW great to know it's working now