Conflict receiving RS485 stream

[ngeronikolos]

Hello Boys&Girls,

I hope you are well.It is time for holidays not for work but...money!!!

Let's talk about PicBasic Pro.
I have a problem with my code.I have a 16F628A which receives a rs485 stream.The device that transmit the stream is the master and it can <<talk>> with 128 slave devices.My pic is a slave device so it has a header(an address).
When I don't receive the stream my code loop MAIN it is working propertly.
When I receive my pic reads ok the stream but I can not go to MENU label while the conditions of porta.3 &porta.4 is 1.

Here is my code:

--------------------------------------------------------------------------
MAIN: IF PORTB.6 = 1 THEN STATIC
WHILE PORTA.3 = 1 AND PORTA.4 = 1 <--it does not work when I it receives
GOTO MENU
wend
DYNAMIC: IF RCIF = 1 THEN
HSERIN 300,MAIN,[WAIT(X),STR SERDATA\17] ;X = header - address
GOSUB OUT
gosub SERTALLY
ENDIF
GOTO MAIN
--------------------------------------------------------------------------

Thanks
Nikos Geronikolos

[NavMicroSystems]

-----------------------------------------------------------------MAIN:    IF PORTB.6 = 1 THEN STATIC    
  WHILE PORTA.3 = 1 AND PORTA.4 = 1 <--it does not work when I it receives
  GOTO MENU
  wend      
DYNAMIC: IF RCIF = 1 THEN 
   HSERIN 300,MAIN,[WAIT(X),STR SERDATA\17] ;X = header - address     
   GOSUB OUT
   gosub SERTALLY
   ENDIF
   GOTO MAIN
-----------------------------------------------------------------

what do MENU, OUT and SERTALLY do?

and...
you are using a While...Wend loop that is jumped out of as soon as the condition in the While statement is met.

That doesn't make much sense, better would be something like:

IF PORTA.3 = 1 AND PORTA.4 = 1 THEN  GOTO MENU