Is it allowed to change pin reference within a subroutine?

[Alberto]

pic 18F2620

Owin portB.5 ,0,[strDta\9] (works!)

Owin 5 ,0,[strDta\9] (works!)

mypin var byte
mypin=5
Owin mypin ,0,[strDta\9] (doesn't work!)


Not very elegant but this way it works!

    One_W1  var PortB.5
    One_W2  var PortB.6
    One_W3  var PortB.7

    if CIndex = 1 Then 
    owout One_W1,1,[$CC,$44]     
    owout One_W1,1,[$CC,$BE]     
    owin One_W1,0,[STR Dta\9]     
    endif
    
    if CIndex = 2 Then 
    owout One_W2,1,[$CC,$44]     
    owout One_W2,1,[$CC,$BE]     
    owin One_W2,0,[STR Dta\9]    
    endif
    
    if CIndex = 3 Then 
    owout One_W3,1,[$CC,$44]     
    owout One_W3,1,[$CC,$BE]     
    owin One_W3,0,[STR Dta\9]     
    endif

Alberto

[richard]

well that should have worked. i don't have one of those chips handy to try any thing.
maybe the manual is incorrect and pin must be a constant not a var.
but it says everywhere (or a variable that contains a number 0 15 ) not just that command


you can always stick them all on the one wire and use the
MATCH ROM [55h] command rather than skip rom [CCh]

[richard]

if CIndex = 1 Then
owout One_W1,1,[$CC,$44]
you realise of course the ow device takes 750mS or so to complete the conversion
before the read scratch pad can occur or you can poll the busy state

owout One_W1,1,[$CC,$BE]
owin One_W1,0,[STR Dta\9]

[Dave]

In following this thread I have to ask, Why are you not using 1 wire? Why are all of the devices on separate pins? It would make your code so much easier.