rs232 communication with microcontroller

[stacker]

Hi all,
i'm new to FB, i need to create an application that send command to pic16f877 (micro).
ex; Pc send "ADCxxx" where "xxx" is delimiter, pc wait (with timeout) the reponse from micro. Micro send binary value 16bit (first byte have six 0 msb and 2 lsb, second byte all 8 bit..... is 10bit ADC).

i try with autoit (i'm not newbie but serial communication is hard for me in script language)...

In short, Pc send command (ADCxxx ONxxx OFFxxx) and micro always send response (OK or value "16 bit"). I need also to display value in a label or textbox and have button to start cycle.

Anyone can help me ?
Can you suggest a GUI tool ?

thanks

[grindstone]

Hello stacker and welcome to the forum!

The serial port is accessed by OPEN COM.

If the µC provides a regular dataflow, you can communicate with it via the PRINT # and INPUT # statements.

[stacker]

Hi grindstone can you explain with example?
uC dataflow is only when pc send command... pc wait for return message from uC.


Thanks

[grindstone]

In a trice: This snippet tests the port if connected to a loopback plug:

Code: Select all

ScreenRes 300,300,32

'Open Com "com4: 9600, N, 8, 1,cs0,ds0,cd0,rs" As #1
Open "c:\test.txt" For Binary As #1

Dim As String Puffer, Taste
 
Do
    Taste = InKey
    If (Taste <> "") Then 
        Put #1, , Taste
    End If
   
    If Loc(1) > 0 Then
        Puffer = Space(Loc(1)) 
        Get #1, 1, Puffer
        Seek 1,1 'simulated reading of the receive buffer
        Print Puffer;
    End If
    Sleep 100
Loop Until Taste = Chr(27)

Close #1 
Kill("c:\test.txt") 

If everything's OK, your keystrokes should be printed on the screen.

[stacker]

Thanks i will try today.
But i think i need more help with fb :( :(

[grindstone]

But i think i need more help with fb :( :(

You're always welcome :-)

[stacker]

Hi, for now i find solution in Autoit. I think to "convert" in fb in the future.
Thanks for support