On 10/2/06, Peter Bako <[EMAIL PROTECTED]> wrote:
I am trying to get a CrystalFontz 632 serial display to work with an OpenBSD box. Under Windows I can just connect the display to a com port, run Hyperterminal and send text directly to it, so I assumed that I could just send a data stream to /dev/tty00 under OpenBSD and make it work as well. Unfortunately it is not turning out to be anywhere that simple.
So far, neither OS does any more than the other.
If I use cu or tip and connect to /dev/tty00 and 19200 then I can send data to the display, but eventually I need to be able to send data to it from a shell script. Any attempt I make to send data to it (such as cat test > /dev/tty00) results in an error of "sh: Cannot create /dev/tty00: Interrupted system call". I've tried to mess with the stty command to setup the serial port (open it up, set the speed, etc), but no luck, that error always comes up. Can anyone point me to the right direction on this? Thanks, Peter
Peter, I would write what you need in C. I can help you along or start you out with ~30 lines to do the job if necessary. It is very simple if you are even just partly familiar with C. After 5 or so lines of initializing the device, its just basic file i/o operations. If you are more comfortable with python or perl, these can probobly handle the job as well. as for being able to use stty, then echo to it, I don't think its possible. Anyone?
