subroutine with hserin

[volcane]

Hi!

My main program calls a subroutine.

I wonder if the subroutine "ricezione" do not have the answer jumps on "accensione" then exiting from the first subroutine return of this command may be problems?

Main:
.........
gosub ricezione
.........
goto Main

ricezione:
.........
HSERIN 2000,accensione,[WAIT ("+CREG: "),Tm1,Tm2,Tm3]
.........
return

[mister_e]

depending how "accensione" is made i guess... that snip above doesn't help us

[volcane]

depending how "accensione" is made i guess... that snip above doesn't help us

accensione:
pause 2000
power=0
led=1
pause 2000
power=1
led=0
Pause 30000
gosub setup
goto partenza

What is the problem if I go out without a subroutine switch RETURN?

[mister_e]

Is it possible to see the whole program?

Usually for each GOSUB, there's a RETURN

Start:
        Gosub Somewhere
        Gosub Elsewhere
        goto Start
        
Somewhere:
        HSERIN 2000, SomeWhereElse,[DataXYZ]
        Return
        
SomewhereElse:
        ToGGLE LED
        RETURN
        
ElseWhere:
        LCDOUT $FE,1,"Are AZERTY Keyboards still on the market???"
        RETURN

In Somewhere, if a timeout occure, it jump to SomewhereElse. This is basically a GOTO, BUT you need to use a RETURN to return to Start... or use a variant like...

Somewhere:
        HSERIN 2000, SomeWhereElse,[DataXYZ]

SomewhereEnd:        
        Return
        
SomewhereElse:
        ToGGLE LED
        Goto SomewhereEnd

HTH

[volcane]

Ok

Thanks for the explanations

Best regards

[volcane]

Start:
        Gosub Somewhere
        Gosub Elsewhere
        goto Start
        
Somewhere:
        HSERIN 2000, SomeWhereElse,[DataXYZ]
        Return
        
SomewhereElse:
        ToGGLE LED
        RETURN
        
ElseWhere:
        LCDOUT $FE,1,"Are AZERTY Keyboards still on the market???"
        RETURN

Somewhere:
HSERIN 2000, SomeWhereElse,[DataXYZ]

SomewhereEnd:
Return

SomewhereElse:
ToGGLE LED
Goto SomewhereEnd
[/code]

HTH

Then i can use two examples? The compiler detects if it is a routine principal or if it is a subroutine?

[mister_e]

Both example have to work. Once it hit a RETURN, it remove 1 from the stack level and jump one instruction bellow the last calling GOSUB.