but I'm not seeing anything from a GPS receiver in NMEA at 4800 no par 1 stp I know that was working about a year ago. I think udev was not helping ,as I was getting permission denied to the com port, I added myself to group dialout. and no message on startup now
I need to be able to talk to a piece of kit with 9600 baud and nothing. I have win32 s/w to drive it , but it falls over in wine. My laptop still has win7 on it in a tiny partition but no 9w d connector and I'm waiting for a USB converter cable. Too many variables ! I'd forgotten all the hassle of having to install drivers just to get basic things running. But as the stupid thing couldn't manage using the driver for my NIC, I was stuck with hyper-terminal, and nothing from the GPS board @4800 or another piece of equipment running at 9600. I suspect the com port on the new mobo doesn't wan to play
I am using Fedora 10 and I need to change the defaults that get set on the serial port.I know how to do what I need to in Windows, but I can't seem to figure it out in Linux.
Windows Settings: Bits/Second '115200' Data Bits '8' Parity 'None' Stop Bits '1' Flow Control 'None' Receive Buffer 14 (HIGH) Transmit Buffer 16 (HIGH)
I have RHEL 5.3 installed on HP ProLiant DL320 Generation 5 but i cant get serial port workingdmesg | grep ttyserial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
I am using linux 2.6.20 from ltib-mpc8313erdb-20070824 on my development board having MPC8313 powerpc processor. Whenever I plug-in the USB device, the serial port starts mal-functioning. It does not receive all the packets.
I am trying to get two way serial communications going between a Windows XP system and a Linux system (RHEL 5).I have /sbin/agetty -L 9600 ttyS0
in /etc/inittab. I am using a generic USB to serial adaptor on Windows (Unitek) and a null modem cable. I have putty configured for 9600 baud, 8 bits, no parity, one stop bit, no flow control.I get the login prompt from agetty in the putty window but input does not work; I see weird characters in the putty screen. I can echo output into the device from windows and see it, but
cat < /dev/ttyS0. just prints out weird characters from what I type.
We have a new machine with RedHat enterprise 5 on it. I need to connect a serial cable to the serial port and talk to another system (old alpha system) instead of using a VT connected to the alpha.Does RedHat come with anything like Keaterm/hyperterm/etc etc?
Can anyone one give me some pointers please, for talking to a serial port, if I use cutecom it always returns "could not open /dev /tty0 or 1 or 3 or 4, even tried ttys0 etc
My program tries to open serial port on Fedora 12, and shows "Access denied" on Open Port operation. The same program runs successfully with root rights. What can I do to get COM port access as regular user?
I think I need to mount a serial device, but not sure how. I looked at /etc/fstab, but cannot determine what to put in for the mount type. And, not sure what port it would be exactly... imagine either "ttyS0" or "tty0". Can someone give a newbie some guidance on how to possibly mount this device?
have a new HP Compaq 8200 elite. I have a dual boot system. Windows 7 and Fedora 15.In Fedora I cannot seem to connect to the serial port. Could anyone help me with resolving this. I've never had issues with hardware before in Linux so this is a little new to me.
I want to create a virtual serial port in Fedora. I'm using Java code to communicate over a serial port. I want to test this code with out any serial devices connected.
I'm trying to set rxtxSerial to work so a Java app has access to a serial port (via SiLabs CP210x driver, port /dev/ttyUSB0). When I use update-alternatives --config java, there are 3 alternatives which provide `java'. I have tried openJDK and Sun. Both fail but with completely different messages.
I am trying to connect to a cisco console port using the usb to serial converter. I am using minicom and I changed me setting to reflect the USB converter cable, but it isn't working. I have set my baud rate to 9600, 8 data bits and no parity. Minicom acts as if it is connected (it doesn't give any errors), but there is nothing on the screen and nothing happens when I type. Also, I use the tail command and it sees the usb connector connected when I unplug it and plug it back in.
I am doing work on serial port. I want to send/receive data to/from Microcontrolar through serial port. But I don't know how to initialize, receive and send data to Serial port. i am new in fedora so i hav'nt any deep concept of fedora.can anyone send me C code , which communicate through serial port in fedora (or atleast help me). I am using Fedora 11.
i'm running VirtualBox v3.0.2 on F11x86_64. As my guest in virtualbox i will am using xp sp3. In virtualbox settings i need the use of my serial port (e.g. com1). I have `enable serial port` ticked, port number set to com1, port mode set to host device and port/file path set to /dev/ttyS0. I have done hours of searching and this is the best i have come up with so far. My question is this: How do i give permission for my guest os to use the serial port?
I am writing some application in C, which will access a serial port device (RS232). My application is working good. But if any other application is already opened the port, I couldn't able to identify that. In windows VB program, while accessing comport through mscomm control, i am receiving an error as "Port Already Opened". But in Linux environment, through C program how can i get that? I am accessing comport 1 as follows
I compiled a code on a Linux cluster machine with mpich and ifort. A test run shows that the program works fine. However, it seems that the program is running in serial instead of parallel mode: reducing the number of CPU's from 32 to 3 does not increase the time it takes to run the simulation. Infact, the simulation is slightly faster with 3 compared to 32 CPU's. Unfortunately I have very little experience on the subject.
My questions are:
(1) How can I be 100% sure my code is running in parallel and not in serial mode?
(2) If the code is running serial, what do I need to do to make it run in parallel mode?
Details:
For submission I use a jobscript which includes the following lines:
I installed ZTE MF 626 modem in my F10 with kernel 2.6.27.12-170, i run usb_modeswitch and so far things happened normally. Watching through /var/log/messages it says that F10 detects two port device for this modem: ttyUSB1 and ttyUSB2, and in the sequence it disable port ttyUSB1 BUT Network Manager still set this port.I mean, when i connect via wvdial appointing to ttyUSB2 i get connection, but Network Manager fails to do it appointing to ttyUSB1. How to change device port in Network Manager?
I am trying to output all of my sound through the s/pdif output on my motherboard. It works fine in Windows 7, I just had to go under the sound properties and switch from the analog to the s/pdif. When I try to do the same in Ubuntu, theres nothing listed. Only "internal audio analog stereo" and "HDMI Audio" (from my graphics card) display under the output choices in Sound Preferences. Under hardware only the HDMI and Internal Analog show up as well. I tried looking at the Gnome-Alsa mixer but nothing in there either.
after installing the OS my mouse was not working. After searching in net for a day, I made it working. Shall give the details hereIf its a repeat thread please ignore it.1. Go to Terminal.2. Login as root.3. su -c 'yum install -y system-config-display'This step will take some 2 to 5 mins 4. su -c 'system-config-display --reconfig'After Fedora 9/10, the xorg.conf is not available and it uses HAL to detect the hardwares. The above steps create the config file.
5. su -c 'cp /etc/X11/xorg.conf /etc/X11/xorg.conf.bak' back up 6. su - -c 'gedit /etc/X11/xorg.conf'
I picked up as Dynex usb2serial converter to use with my cisco router/switch. The dongle works fine if plugged into a windows box & puTTy, but I cannot get it to work with Fedora 14. When I try to use cute, mini or command line it tells me it cannot open the connection. Here is the output from lsusb and dmesg. susb output:
ive been looking through several online documents and forum posts but i cant get a clearcut answer on how to set up serial port acces in ubuntu 10.04 (server).
I have two usb2serial adapters connected to my PC with a null modem (I am doing some testing to learn serial comm for a particular application). I am writing to /dev/ttyUSB0 a trying to read /dev/ttyUSB1. I have used screen (screen /dev/ttyUSB1 115200) and am able to see the characters being written. I am also able to read and write with Python with the following code
I can't communicate with and UPS (Eaton) via a serial port. The serial port is UP and have been tested under a Windows OS.I have set up the communication parameters and tried to establish a dialog with the UPS. Minicom is installed. Nothing appears ont the screen and the VT102 has an offline status. The OS is Red Hat Enterprise Linux 5 64bits.Is somebody have examples to debug the serial port ?
I need cause an interrupt on a serial port. If I put a single HIGH on the RX pin, will that cause one? I all ready use the 4 control lines for data.Hope I am making sense?
