🚀 go-pugleaf

"Ramy" <Ramy@NoMail.com> wrote in message
news:44c35c6a$1@newsgroups.borland.com...

> Hi, the timeouts that I use are the following -

These are the timeouts that I use:

    read_timeout.ReadIntervalTimeout = 0;
    read_timeout.ReadTotalTimeoutMultiplier = 5;
    read_timeout.ReadTotalTimeoutConstant = 5000;
    read_timeout.WriteTotalTimeoutMultiplier = 5;
    read_timeout.WriteTotalTimeoutConstant = 1000;

> I asked the WriteFile command to send 8 bytes, and the size of my TxBuff[]
is 250 bytes.

What buffer sizes are you specifying in SetupComm()?  What DBC values are
you specifying in SetCommState()?

> Any Idea ?

You did not answer my earlier question:

    "What kind of device is on the other end of the port?

If the device is having problems reading, and you are using any kind of flow
control, that might explain why your writing is freezing periodically.

> "using Overlapped I/O with the port"
>
> What does it do? do you have an example? is it complicate?

    Overlapped Operations

http://msdn.microsoft.com/library/en-us/devio/base/overlapped_operations.asp


Gambit