How to upon receiving data via RS232, MCU immediately sends it back to the sender?

[SKOLS1]

no,it's not working

[aratti]

Did you turn portA digital ? Remember that by default portA is set as analog, so you cannot use the serin/serout command.

Which pic are using?

Al.

[SKOLS1]

No I forget to turn into digital,I have to use ADCON = 7?
I am using PIC16F877,but IF it's working I will make a small network,so I should send a messages from one PC to onether with RS232 protocol.

[FinchPJ]

Another error: you define Prati as a byte then use it as a label - remove the byte definition. Also you assign the output value to Isprati which is undefined
Peter

[SKOLS1]

No it's not working,I changed everything,but stil nothing.
I think the problem is in the MCS.When I compile code for PIC18F2550
there is an error.
And I want to make the code from DT,code for the Baragraphs it can't
compile it.

[Ceetee]

I see from your code that you do not assign a value to Isparti.

Prati:
Primi = Isprati
Serout PORTA.2,N2400,[Isprati]
Goto Main

You assign Primi with the value IspartI, would it be better to reverse it ?.

Isparti = Primi