On 2/10/08, Xavier Millihs-Lacroix [EMAIL PROTECTED] wrote:
Hello,
I want add one or several serial / rs232 connectors on a OpenBSD box
(Soekris or standard PC) - without adding a PCI card - just converter.
I search compatibles products. When we buy product we don't know the chip.
Do you have good experiences ?
This is the one I use (ATEN UC-232A):
http://www.aten.com/USB-Converter.htm
I don't have a dmesg right now though.
It works fine for basic things where you only use the txd and rxd lines.
From what I've been told, do not rely on the other lines to act
properly (if the do anything at all) if you are using a generic
USB-Serial converter.
I have an converter, here an excerpt dmesg and usbdevs :
uftdi0 at uhub0 port 2
uftdi0: FTDI FT232R USB UART, rev 2.00/6.00, addr 3
ucom0 at uftdi0 portno 1
# usbdevs -dv
Controller /dev/usb0:
addr 1: full speed, self powered, config 1, UHCI root hub(0x),
Intel(0x8086), rev 1.00
uhub0
port 1 addr 2: low speed, power 100 mA, config 1, NetScroll(0x0035),
Genius(0x0458), rev 1.10
uhidev0
port 2 addr 3: full speed, power 90 mA, config 1, FT232R USB UART(0x6001),
FTDI(0x0403), rev 6.00
uftdi0
-
I think tJhe FT232R USB UART is the /dev/ttyU0 device.
But I can't talk witj it (in or out).
# stty -f /dev/ttyU0
ispeed 0 baud; ospeed 9600 baud;
lflags: echoe echoke echoctl
cflags: cs8 -parenb
Any ideas ?
On another box I was using tip for receiving caracters.
Xavier.
I've only ever used minicom on OpenBSD for serial connections (to
devices with a serial terminal.)
If you want to see if your device is working, it may have an LED on it
that blinks when you send a character.
You can also do a serial loopback test, like this:
http://zone.ni.com/devzone/cda/tut/p/id/3450
Just short the txd and rxd pins, then transmit data from a program
like minicom, the data you transmit will be echoed to the screen.
-Mark C.
