Serial COMM Problem

[Emanuele Colombo]

I'm working about a communication program using the RS232 serial port.
The test PC has WINDOWS XP SP2 with Intel Celeron processor.

The program work fine, except when it receive a CHR$(&H7) from the
serial port.
In this case, the PC speaker sound a beep.

I tried on a diffrent PC (always WinXP SP2) but the result is the same.

I'm not expert about serial communication, where can I find the way?

Thanks

[Marco Pontello]

Probably you are echoing all the received bytes on the screen?
CHR$(7) correspond to "bell".
If you use PRINT instead of STDOUT, you'll get some sort of graph char instead of a beep; but it's probably better to simply filter the input data.
Or I haven't understood what you meant.

Bye!

[Emanuele Colombo]

Solved

Marco,
the problem was exactly that.
Thank you very much for your help!