Re: [Ftdi-usb-sio-devel] Communication problems between Ubuntu Linux and Suunto D6 over FTDI usbserial

[Bill R. <bil...@gm...>]

You could try setting VTIME to 1 for testing purposes.

Or even 0.



On Thu, Apr 29, 2010 at 3:35 AM, Michael Plante <mic...@gm...>wrote:

> Matti Dahlbom wrote:
> >>     // configure the new port settings for 9600baud, 8N1, raw output
> >>     termios options = termios();
> >>     options.c_cflag = B9600 | CS8 | CLOCAL | CREAD;
> >>     options.c_iflag = 0;
> >>     options.c_oflag = 0;
> >>     options.c_lflag = 0;
> >>
> >>     // 1 second port read timeout
> >>     options.c_cc[VMIN]  = 0;
> >>     options.c_cc[VTIME] = 10;
> >>
> >>     // register the new port settings
> >>     tcflush(m_fd, TCIFLUSH);
> >>     if ( tcsetattr(m_fd, TCSANOW, &options) == -1 )
>
> Just a guess, since I don't generally use my ftdi chips this way (but have
> used real serial ports this way), but termios has other members.  I'm not
> entirely sure what the termios() function does (constructor of some sort?),
> but you might try a memset(&options, 0, sizeof(options)); before you start
> fiddling with them, or, better yet, a tcgetattr() first.  I have no idea if
> tcflush() can fail, but you might also printf its return value.
>
> Michael
>
>
>
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