I am new to Ubuntu and I need to establish a serial port communication between my PC and microcontroller MSP430G2452.
On connection the USB available with the Launchpad and using lsusb.
It identifies the port as:
Bus 005 Device 003: ID 0451:f432 Texas Instruments, Inc. eZ430 Development Tool
After establishing such a connection what I need to do? My aim is to send a byte of information in Linux.
Not really sure where to post this, so here goes... I installed apache2, php and MySQL via LAMP and everything seems to work fine but when I try to open the COM1 port to do serial communication via PHP, I get a permission denied error.
'mode com1: BAUD=9600 PARITY=N data=8 stop=1 xon=off';
$fp=fopen("COM1:","w+");
I've also tried using /dev/ttyS0 instead of COM1: but no luck. Anyone out there know what I'm doing wrong? I don't know if I need to set something up in apache2 or php or if the code is just wrong. I'm on an Acer Aspire One with Ubuntu's LNR 9.10.
I am new to linux terminal programming and all but i want to set up a simple serial communication from my desktop through USB port. The actual idea to to write some data in the terminal and build a terminal program that sends the data to the usb port with a fixed baud rate. are there ready made terminal programs available for this simple communication?or atleast any Graphical tools which could help me build and design such a terminal in ubuntu 9.04?
View 8 Replies View RelatedI wrote a serial port communication program to access a equipment.
int main(void)
{
int fd = 0;
int nread = 0,i = 0,nwrite = 0, tmpread = 0, m = 0, n = 0 ;
[code]....
I am in verse to understand the serial communication between guest and host.I have just added a serial port through VI Client selecting "Use serial port on host"(host being ESX host).If I am on VM and run :
ll > /dev/ttyS0
I understand that it should get displayed through ESX Host. So On ESX Host, I typed:
cat /dev/ttyS0
But nothing worked !
When I try to Sync a Palm Vx to my PC through serial port I get a communication error message in the gadget. My PalmOS Devices application is already configured to use tty0 or tty1 in unsuccessfully trials. I have a lot of information in the addresses, agenda, notes, etc. and do not want to loose that information gathered for years, nor to return to Windows.
As a test, I used a serial mouse in the serial port and It didn't work. I verified the Bios Setup and COM 1 and COM 2 are enabled.
I also checked my system serial support with the following commands:
And messages were OK when compared with typical outputs. My machine is a Pentium 4 CPU 1.6 GHz, in a U8668 motherboard (Award Software International). I have Ubuntu 10.04 LTS with Gnome.
I am new in Linux and don't know Bash yet. I had followed indications from Internet tutorials successfully, but I don't know how to proceed in this case.
I have Installed Virtual Box 3.1.6 on my system. The host is running on SuSe 11.2 and I have installed the SuSe 11.2 as guest OS on the VBox. I have a another system in which I installed Win XP. How to make serial port connection between the VBox and Win XP system.
View 2 Replies View RelatedI have been trying out serial and parallel data communication on Fedora 13 Beta. I can easily see the list of serial ports through:
Code:
setserial -g /dev/ttyS[0-3]
And can also write some data through:
Code:
ll > /dev/ttyS0
But I am unable to see parallel ports
I can see something like:
Code:
/dev/parport0
But when I try out:
ll > /dev/parport0
It throws error.
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.
I was trying out the parallel port communication on RHEL 6 but found it not working:
#echo hello > /dev/parport0
write error :Invalid argument".
#ll > "/dev/lp0"
/dev/lp0:No such device or address
Running RHEL5.5 on a Dell R710 server. I installed a 2-port PCIe serial card, built the driver, and installed the kernel module. The ports show up in /etc/hwconf, lspci, kudzu, /proc/ioports, etc., and I now have two new device entries...
/dev/ttyE0
/dev/ttyE1
When I connect a null modem cable from port 0 of the card in the new computer to serial 0 of another computer, I can receive text from the other computer. When I do this... code...
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?
View 3 Replies View RelatedI have a laptop which has only one serial port.
I went into:
How do I know which of those "ttyS" refers to my serial port?
How do I get syslog using serial port?
View 2 Replies View Relatedcan we use inb() and outb() functions for serial port programming ??
View 5 Replies View RelatedI'm currently working on a project for university that requires communication, via an RS232 link between a piece of hardware (I have designed and am currently testing) and some software(which need testing).
I was hoping to have my hardware finished by now so I could get on with testing the software over Easter.
The hardware does not work yet but I would still like to test the software.
Does any one know if there a way to make a virtual serial port that I could put data on and read data off while my program accesses it as a regular serial port so I can check my code?
I am using Ubuntu 9.10 and am happy to give any more information on request.
I'm trying to solve an intermittant serial port problem on an embedded medical monitor. We have determined that the port is receiving characters from the external device but the serial thread is not transferring the chars from the buffer. this problem happens at start up about 1 in 50 boots. We're using kernal 2.6.29.6.
View 1 Replies View Relatedwas wondering if there is an alternative method to using udev rules in order to get access to the USB serial ports. Is there a command to check the names and give them to you? I'm looking for something along the lines of "ttyUSB".
View 3 Replies View RelatedI'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.
[Code].....
I need a serial port monitoring software that works on windows 7 64bit or GNU/Linux and supports at least RS-232. Bonus points are if it's free software or at least freeware. I just need to be able to see what goes in and what goes out of the port. At this time, I don't need any protocol deciphering or anything else complicated.
View 1 Replies View RelatedI 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.
View 1 Replies View RelatedI have a minilinux that I being working on, the problem now is that the serial ports doesn't seem to work (I have 4 serial ports).They don't write or read.
I run the command setserial g /dev/ttySx and it says that his IRQ are 3 or 4 (3 for ttyS0 and ttyS2 , 4 for ttyS1 and ttyS4)�but when I run the command: dmesg | grep ttyS the IRQ�s are 0 for ALL my serial ports� could be this the reason why my serial ports aren�t working right??? And if it is how can I solve the problem??
I have a new problem tied to the same system as in [URL]Apparently when I send the output from
Code:
wget -q -O- http://<IP address>/<filename>.asp?LID=12345 |dos2unix
to /dev/ttyS0 (whether via > /dev/ttyS0 or via > <somefile> then cat somefile > /dev/ttyS0)
[code]....
I want to verify that serial port libraries are installed in my system.I know that it is installed at /usr/local/lib. But I dont know what all files are to be present in there, so to ensure that the same is installed properly. Iam using suse 11.1.
View 1 Replies View RelatedMy linux computer runs ubuntu 10.04.
I have it hooked up to a device, and the device manual says:
Device Specs:
Here is my script:
PROBLEM 1: The file gets created and most of the data gets saved to it, but the terminal never goes back to the ~ (home directory?) when finished. I can type whatever I want but it wont go anywhere or do anything even when I press enter. I have to click the X to close it and then the prompt comes up saying something like "are you sure you want to close terminal and kill all processes".
Reset does not work nor does the "stty sane" command that I read would force it to reset.
PROBLEM 2: See the 00/01 character in front of 200 and 201, those are <SOH> commands and in the file they are supposed to show up, sometimes they do, sometimes they don't. But there is always supposed to be an <ETX> after each one, and with the way its written now, no <ETX> shows up, <ETX> is 00/03 i think.
Here is what the output is supposed to look like:
yet the first SOH doesn't show up half the time and none of the ETX show up.
I have to connect from my linux client laptop to SPARC machine by using roll-over cable and RJ45 interface on the server. On windows I always used Tera Term but don't know how to accomplish this task from linux laptop.
Is there some kind of app like TeraTerm on linux too ?
I need to read some data from a web server and output to a serial port on the local machine. I was attempting to use the following command:
Code:
But the device attached to the serial port (a plate embosser) acts as though there is an extra newline after each line of data.
It parses the data sent according to it's own format, which includes a format string in <> followed by a data block containing one data field per line, with the whole block surrounded by <>,
For example:
Code:
seems to output as though it were:
Code:
I can verify that the web server is outputting the former (and it looks correct if I send the wget output to console).
I'm trying to solve an intermittant serial port problem on an embedded medical monitor. We have determined that the port is receiving characters from the external device but the serial thread is not transferring the chars from the buffer. Has anyone seen this before? Looking for some guidance on what to look for. this problem happens at start up about 1 in 50 boots. We're using kernal 2.6.29.6.
View 1 Replies View RelatedI 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
fd = open("/dev/ttyS0", O_RDWR | O_NOCTTY | O_SYNC);
I successfully installed the virtual box on my fedora 8 system, and also created a virtual machine with windows xp OS, it works nicely, I try to configure the serial port of my virtual machine and try to configure the path for the port "screen shot are attached" it gives me the error message also the "screen shot are attached" for your review.Is kind of mistake is going on during the path setting, and how to set the path for configuring the serial port of my virtual machine so that I can use the hyper terminal tool of windows.
View 4 Replies View Related
