Software :: View Oscilloscope Images Over Serial Connection?
Jan 23, 2009Is there a program that will take images from an oscilloscope that I have connected via serial port?
View 5 RepliesIs there a program that will take images from an oscilloscope that I have connected via serial port?
View 5 RepliesI have Ubuntu 9.04 installed on my computer, and I need some sort of oscilloscope or function generator. In the Windows world, there is a free program here. Is there a similar program in Linux?
View 2 Replies View RelatedI'm using version 10.10.I just noticed yesterday that when I try to register at a site the reCaptsha images don't show. Would this have anything to do with the recent updatesThe images show fine on my Mint machine and Windows machine - all using Firefox.
View 6 Replies View RelatedI have found some links that myself or computer do not how to handle.I think they are meant to be images and they have a .aspx extension.
View 6 Replies View Relatedi wondered if anyone could assist me with a problem with gthumb?gthumb works fine on local files - it can thumbnail preview, then i double click the file to view iton network share, it does not work - it does the thumbnail preview ok but the viewer is blank (has image) when i double click - the snow leopard-esque thumbnail ribbon at the bottom still worksi have not issued a mount command - i have used the network drive mapping in the ubuntu menus (places > connect to server) then bookmarked the server. i note that gthumb does not see the bookmark. it sees the share as "sharename on server" and not the bookmark i made for it
View 1 Replies View RelatedSomehow I got libjpeg out of my system, and can't get it back working. I have installed jpeg-8b package, applications installed by it work, but not "system-wide" support for jpeg. Eg. I can use "cjpeg", but Eye of Gnome (image viewer) gives me "Unrecognized image file format" error.
Could you please point me to some right solution? Where does Debian look for this library?
What I'm trying to do is wget images, however, I'm not sure how to do it 100% right. What I've got is a index.html page that has images (thumbs) that link to the full size images. How do I grab the full size images?
Example of links on the page:
<a href="images/*random numbers*.jpg" target="_blank"><img border=0 width=112 height=150 src="images/tn_*random numbers*.jpg" style="position:relative;left:3px;top:3px" /></a>
I tried:
wget -A.jpg -r -l1 -np URLHERE
but only got the thumbs.
I just installed F13 from the Live Installer CD today. Most things are working well, but not Evince.
I can't use it at all to view images nor PDFs.
I get a "Unable to open document error":
[url]
However, eog is able to view the same file just fine...
Can anyone recommend a PC oscilloscope that's compatible with Ubuntu? I need this for checking the waveform from an audio output.
View 1 Replies View RelatedI have been tol that for debugging purposes it is often useful to have a serial connection to a computer. I have some diskless workstations thats freezes during boot. I guess X has someting to do with this, but I'm not sure. Since the workstations are diskless, syslog is not stored locally so I cant se what is happening after the NiC stops working. When the worstation freezes, screen is going black, all lights on the keyboard turns on, lights on NiC is going black. It is not possible to ping the workstation.
View 1 Replies View RelatedI have a Sun server that could be only configured via serial interface. It has one serial port with a RJ 45 connector. Although my laptop has not serial interface. Is there a way to use C-Kermit or any software to establish a serial connection via the ethernet port. It should be some kind of virtual serial port that should transmit the information over the ethernet port, without encapsulating it in ethernet frames.
View 11 Replies View RelatedI have a Cisco Switch that is connected to my computer via serial. I simply want to configure the switch via the serial connection from within a terminal. I edited the /etc/inittab to include agetty for ttyS2 and ttyS3. The switch is hooked up to one of the two.
I ran
Code:
init q
to re-read the inittab
Ran a
Code:
ps -ef
and I can see the two agettys I also have run a dmesg to confirm that my computer has detected ttyS terminals. The requirements for the cisco switch connection are the following:
8 data bits
no parity
1 stop bit
[code]....
How do I connect to /dev/ttyS2 or /dev/ttyS3?
I've tried
Code:
agetty -8 115200 ttyS2 vt100
but it just hangs.
We have an APC UPS connected to our main server via a serial cable, with the APC Powerchute Business Edition up and running nicely. We also have another server which is protected by the same UPS I started looking at an APC interface expander which would allow shutdown of multiple servers from the same UPS, however it appears it's not standard serial cables but a whole proprietory nightmare.possible to hook both servers up with a serial cable and have the master shut the other one down through a shell script? Both boxes are CentOS 5.4
View 5 Replies View RelatedI've been reading too much and understanding too little. What I have: Lucid laptop & desktop. Both have ethernet > hub > internet. What I want: connect them directly by the serial ports so the laptop can access the desktop's drives, and the desktop can be retired from the internet. I've got an old DB-25 null-modem, last used for multiplayer Doom. The laptop's dock has DB-9, so the connections is desktop > null-modem > Belkin DB-25 - DB-9 cable > laptop.
I had hoped this post would get me somewhere:[URL].. No such luck. When I ping 'grin.local', the connection is through the internet. If I disconnect the hub, i cannot ping.
Dunno if there's something more I should do to enable serial connection in Lucid, or if my null-modem is no longer good. I'm also rather curious how "grin.local" manages a connection through my ISP's system. These are DHCP. Shouldn't that have required the full numerical IP?
(It's nothing to do with the hub. Checked that by connecting a third box to the hub. My ISP only hands out two IP. I couldn't ping the third box.)
Hello. I want to use my Debian box as an internet connection for a Win95 laptop. The laptop is old enough that the only port I have available to connect to the internet from is the serial port. I have heard that a serial port redirector will allow it to access the internet through my debian box, but I have no clue how to set one up. Any advice. Thanks
View 3 Replies View RelatedMy computer for a project I'm working on will be using Ubuntu with Perl and VLC from the repositories, if that matters at all. I'm not sure what I should/could use to accomplish this, but essentially I'm looking for Perl to be able to send predefined data via a serial connection based on the time within a song that VLC is playing.
A couple of the things that I've thought about after Googling a bit are SMPTE and subtitles/lyrics; I can't stop thinking that there's got so be a simple way that I'm just overlooking, though - most of the stuff I've found is for over-the-network applications, and that's overkill for this situation. All the subtitles/lyrics would have for text is hexadecimal values; all the SMPTE would do is keep Perl and VLC (playing audio) in-sync with each other. I would need either one or the other, but not both. Or, I could use something else...
I'm envisioning something like the setup below, I just don't know what else I need to make it happen.
Files:
song.mp3
timing.txt
script.pl
When I run "./script.pl song.mp3 timing.txt", VLC will open, and start playing "song.mp3", and the variable "$mils", for milliseconds elapsed, will be equal to zero. For each line in "timing.txt", the "script.pl" will assume the portion before an underscore is the "$time" for that line (time in milliseconds), and "script.pl" will assume that the portion after the underscore is the "$data", a three-byte hexadecimal value (such as "ff101f", or "011c00"), for that line.
I think that I will need to use two arrays, "@time" and "@data", such that the given line in "timing.txt" would read the same as printing: "$time[$line]".'_'."$data[$line]"."
" (if "$line" is the line number). My problem: jitter/stuttering playback. If VLC stumbles (which it sometimes does), and is a about half a second behind where it "should" be, but Perl didn't stumble, then I've got an out-of-sync issue.
Since Perl can't just count the time by itself to avoid synchronization issues, I've got two main ideas for getting this done: One way: Perl has to "read" where VLC is at, and use that as the "$mils" value. Then, if VLC delays/stubmles, so will Perl, but everything will still be in-sync. Alternative way: VLC has to "listen" to what Perl says "$mils" is at any given moment, essentially having Perl be in control of VLC's timing. This would make VLC "skip ahead" (to where it "should" be) if it starts to fall behind, thus keeping the two in sync.
I don't know which, if either, of these ways is best for my particular need. I would need "script.pl" to send "$data[$line]" over the serial connection when "$mils" == "$time[$line]". I already know how to send serial data from Perl, read files via Perl, and convert the hexadecimal number (if needed). I don't know how to "link" Perl and VLC so that they stay synchronized, and I am quite lost as to where to go from here.
I'd like to make a video of an ogg file going through an oscilloscope as it's playing. audacity (with enough zoom so that the wave can be seen as a wave and not a blur) could make it but it's too heavy and the screen capture software doesn't get the screen refreshes.... so I'd like to know if there's something that could provide more accuracy.
View 1 Replies View Relatedhow to view my network connection speed. EG: 10/100/100 mbit. I searched and searched with no luck, I tried ethtool as well as mii-tool.
View 4 Replies View RelatedI have an issue viewing my hosted webpages via wired connection on the same network as the server. I can view them via wireless without a problem but wired times out.
View 8 Replies View RelatedI 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.
On my CentOS 5.2 install I've installed a dual-port serial card based on the NetMOS 9835 chipset. I've followed the serial instructions, but everything they tell me to do is already done - see setserial outputs below. I've compared these values to the lspci output (below, NetMos card is at the bottom of the output) for the card and it appears right. Problem being, I can't use the serial ports. Oh and I did use search, and looked at every 9835-related article before posting this :)
[Code]....
I am hoping to be able to get an old serial-touchscreen to work with a usb/serial adapter. I had this touchscreen working some years ago on different hardware. I would like to hook it to the machine I am setting up as a multimedia host with mythtv among other things.
Following the instructions I left behind when I got this to work way back when does not work. See [URL] ....
This info is a work around to get the xserver to see the touchscreen. [URL] ....
I do know that the touchscreen works as I am able to get garbage on the screen as in the first part of my howto. But I have not had any success getting xorg to see it. I wish I had posted a copy of the xorg.conf at the time, but......
There is an issue with the current xserver in testing that I am hoping the next update (in unstable) will fix when it gets pushed to testing. That is that Code: Select all# X -configure fails with a segfault. So I am not able to generate the xorg.conf needed to get it to work. I was going to post a bugreport, that is when I found out there is an update in unstable, so I am waiting for it to get pushed at the moment.
Anyway I am hoping that I can link /dev/ttyUSB0 to /dev/tty0 and get it to work. I would like some kind of guess as to my chances of success before I go to all the work of getting the monitor hooked to the host.
I am running opensuse with LAMP, and this is my first time setting up this type of server (usually am a windows junkie) My problem i am having is that I am unable to view my website from outside the local network. I have setup my router for a dynamic dns and forwarded all the ports through the router and the local firewall. I ran the apache setup through YAST2 and everything seems fine locally but when i attempt to access it elsewhere its not connecting. computechsolutions.dyndns.biz is the dynamic dns address i have setup through my router.
View 2 Replies View RelatedI have a bit of a dilemma. I'm attempting to use a microcontroller to send MIDI messages over a virtual serial port. I want to (eventually) read them with Mixxx. I'm using an FTDI chip, so I get a /dev/ttyUSB0. I've tried spikenzielabs' Serial-Midi program, but it doesn't see any serial ports. NOTEMIDI looks really old and won't compile on my 10.04 LTS machine.
View 2 Replies View RelatedWe 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 am running Linux from a DVD, not installed. I am not good with installing software, but since the DVD cannot be corrupted, I am content to operate this way. Lately, I have been having problems that previously did not occur. When I try to click on the checkbox to get rid of emails, it doesn't register in most cases, or when it does, I am clicking multiple times so it registers twice, meaning it is unchecked again. Even more frustrating is some issues that are affecting my ability to update my business. I am trying to modify spreadsheets (text not calculations).
Whenever I try to click & drag to select something to change, it keeps jumping around to select only some of what I want, something else or some combination of the 2. When I try to copy and paste several fields from 1 column to another, everything from the several fields in the source column ends up together in the last field in the target column. I am also trying to download some images from a website. There is a single column of links to the images. I have to click on the link to get to the image in order to copy it, then back out to continue looking for more links to do the same.
My computer keeps jumping back 2 steps, then forward 2 steps, and sometimes I lose my place in that list. I could deal with it if it were a small number of links, but this is a list of probably close to 20,000 links. Again, i am operating off of a live DVD so this should not be corruptible, but this has just started happening, and has been an issue the last several sessions.
using the update maneger to update on ubuntu new linux images available 2.6.31-17 generic and after the download is complete both images exist in the grub menu should i remove them ? or just remove them from the boot menu ? and if so how could i do each.
View 6 Replies View RelatedI know that ImageMagick's convert program can be used as follows to convert a collection of images -- say, in PNG format -- to a PDF file:
convert *png output.pdf
The problem with this is that each image is then stretched to fit on one page, whereas I would like to keep the original dimensions of the images and put as many as possible on one page in the PDF file before moving on to another page.
I am just spent half an hour hunting for a thing that should be totally available already:USB install images of Ubuntu, knoppix and all the others.And, the only good way are so far complicated tutorials where you extract the stuff from an CD image. Why??Hasn't everybody notices that CDs/DVDs are vanishing big time? That more and more systems don't have the readers anymore? Instead of following a 10 point instruction list, it would be nice to just be able to download a Ubuntu 8.10 or whatever USB image and be able to beam that DIRECTLY to a USB stick with a dd command.
Or am a missing something here? Does this exist?It should by no means be mariginal, considering how important USB stick in specific and flash memory in general have become.
I have been working in macromedia dreamviewer for editing html and php files, Just now I moved to linux system by installing xampp , my question is that I need a best html and php editor that supports both the design view and code view as like in dreamviewer.
View 7 Replies View Related