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nbn
Joined: 14 Aug 2004
Posts: 6
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 08 Jan 2005 23:28 Re: Digital oscilloscope Project |
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| http://www.fpga4fun.com/digitalscope.html
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cyr
Joined: 10 Jan 2005
Posts: 54
Helped: 4
Location: Sweden
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| 10 Jan 2005 23:41 Re: Digital oscilloscope Project |
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| nbn wrote: |
PC-based DSO
h**p://a26.lambo.student.liu.se/?section=hard&project=scope |
That's my site (hi everyone!).
I was to busy with other things for several months, but recently I've started work on the DSO project again. Also on some other projects and a new website (which is why I haven't updated the old one at all).
I just gave the URL for the new site (not actually ready yet) to "lighty", so I guess I might as well post it here as well.
http://beta.area26.no-ip.org/
There is some new info there, but not a lot (yet).
Now I really have to go study, but I will do a lot more soldering and programming after my exams 
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lighty
Joined: 02 Oct 2002
Posts: 187
Location: Mars
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| 11 Jan 2005 3:18 Re: Digital oscilloscope Project |
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@cyr
Welcome to the EDAboard (aka Elektroda) the best site for electronics!
I think you will like it here... 
BTW- do you have any more specs for your new version of DSO? I looked at the specs of your previous one and it seemed to be in advanced stage of development both hardware as well as software.
Now if your project could be taken as a basis on which to build more advanced model it would be great because it would give a great boost to the current projects mentioned in this thread that are in more immature stage of develpment. It is of course my private wish only and maybe something that cannot be easily done. 
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Make_Pic
Joined: 13 Apr 2002
Posts: 79
Helped: 1
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| 11 Jan 2005 7:36 Re: Digital oscilloscope Project |
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| cyr wrote: |
| nbn wrote: |
PC-based DSO
h**p://a26.lambo.student.liu.se/?section=hard&project=scope |
That's my site (hi everyone!).
...
[url]h**p://beta.area26.no-ip.org/[/url]
There is some new info there, but not a lot (yet).
Now I really have to go study, but I will do a lot more soldering and programming after my exams |
Why you use ethernet controller, instead of USB?
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cyr
Joined: 10 Jan 2005
Posts: 54
Helped: 4
Location: Sweden
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| 11 Jan 2005 21:23 Re: Digital oscilloscope Project |
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| Make_Pic wrote: |
| cyr wrote: |
| nbn wrote: |
PC-based DSO
h**p://a26.lambo.student.liu.se/?section=hard&project=scope |
That's my site (hi everyone!).
...
[url]h**p://beta.area26.no-ip.org/[/url]
There is some new info there, but not a lot (yet).
Now I really have to go study, but I will do a lot more soldering and programming after my exams |
Why you use ethernet controller, instead of USB? |
Mainly because my laptop has 54Mbps WLAN but no USB2.0
I prefer to plug the scope permanently into my LAN and then have access to it from any computer, and wirelessly. No special device drivers are needed either.
Even so, since I have the ethernet controller on a separate board it wouldn't take all that much work to replace it with some USB2.0 chip if I should change my mind.
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kot_b
Joined: 28 Dec 2001
Posts: 111
Helped: 3
Location: Latvia
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| 26 Jan 2005 0:48 Digital oscilloscope Project |
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to TOTO2001.
I can advice you to look on DASP technology, for this project. Somethere i read that guy cover 1.2GHz bandwith with 80MS/s ADC. Not sure about, but somthere it was.
If u are interested in it i can help a little bit in signal processig field.
Main idea is quite simple, make readings, with frequency smaller than it is needed according to nyquist criteria. But time between readings is randomized.
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xjackal
Joined: 21 Jan 2004
Posts: 133
Helped: 13
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| 07 Feb 2005 14:48 Re: Digital oscilloscope Project |
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| hi folks i also like to make this project with pci bus.so what will be the maximum speed with that?and how can i make the inputs for the probes?
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strombom
Joined: 23 Jun 2003
Posts: 39
Helped: 2
Location: Stockholm, Sweden
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| 07 Feb 2005 21:40 Re: Digital oscilloscope Project |
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| I think you should have a memory buffer before the pci-bus to maintain constant sample-rate, then the pci-speed doesn't matter much. The probe-inputs is a part of the difficult analog part, take a look at some of the links in this thread...
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smitjs
Joined: 22 Jan 2005
Posts: 1
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| 14 Feb 2005 5:16 Re: Digital oscilloscope Project |
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HI,
I have tried for weeks now to access either
http://www.soudez.be/Page_Projet2.php or
http://164.15.88.56/Page_Projet2.php
and all I get is:
Warning: mysql_error(): supplied argument is not a valid MySQL-Link resource in C:\Program Files\Apache Group\Apache2\htdocs\phpBB2\db\mysql4.php on line 330
Warning: mysql_errno(): supplied argument is not a valid MySQL-Link resource in C:\Program Files\Apache Group\Apache2\htdocs\phpBB2\db\mysql4.php on line 331
phpBB : Critical Error
Could not connect to the database
I have tried with Opera and Mozilla Firefox.
Could somebody help please?
Thank you
Johan Smit
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presto
Joined: 26 Nov 2001
Posts: 38
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| 15 Feb 2005 1:45 Re: Digital oscilloscope Project |
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| smitjs wrote: |
HI,
I have tried for weeks now to access either
h**p://www.soudez.be/Page_Projet2.php or
h**p://164.15.88.56/Page_Projet2.php
and all I get is:
Warning: mysql_error(): supplied argument is not a valid MySQL-Link resource in C:\Program Files\Apache Group\Apache2\htdocs\phpBB2\db\mysql4.php on line 330
Warning: mysql_errno(): supplied argument is not a valid MySQL-Link resource in C:\Program Files\Apache Group\Apache2\htdocs\phpBB2\db\mysql4.php on line 331
phpBB : Critical Error
Could not connect to the database
I have tried with Opera and Mozilla Firefox.
Could somebody help please?
Thank you
Johan Smit |
I got the same problem. Can anyone post the schematics here?
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manu
Joined: 14 Mar 2004
Posts: 178
Helped: 9
Location: France
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monnoliv
Joined: 09 Mar 2004
Posts: 100
Helped: 3
Location: Belgium
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| 18 Feb 2005 20:01 Re: Digital oscilloscope Project |
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Hi guys,
Sorry for the inconvenience, my website is down since January. I thought that at least the projects pages were up, but no. Then I'll work on it right now. Wait two or three days.
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monnoliv
Joined: 09 Mar 2004
Posts: 100
Helped: 3
Location: Belgium
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| 19 Feb 2005 19:15 Re: Digital oscilloscope Project |
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Ok, the site is (quite) up now. You have to go to :
http://www.soudez.be/site.php
Then choose your langage and then select the project at the left.
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sora
Joined: 11 Sep 2005
Posts: 1
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| 11 Sep 2005 23:40 Re: Digital oscilloscope Project |
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| I got the same problem , and can not open your project page. Can you send schematics any other way or post valid link?
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Milan
Joined: 16 Sep 2005
Posts: 4
Location: Serbia
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| 16 Sep 2005 0:24 Re: Digital oscilloscope Project |
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Hi
I am new here.Have You considered using something like adc/sh new IC-s from MAXIM ?
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xjackal
Joined: 21 Jan 2004
Posts: 133
Helped: 13
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| 21 Sep 2005 7:58 Re: Digital oscilloscope Project |
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hi guys,
what do u think if i want to do a pci card for that project without a ram or memory capability.i mean just viewin it right at that time is possible or do u think it will cause crashes?anyone has experience?
and please give me a link to make an example pci card design and bus interfacing (i mean addressing with logic gates)guide site.
thank
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pat35
Joined: 25 Sep 2005
Posts: 7
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| 25 Sep 2005 2:13 Re: Digital oscilloscope Project |
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Hi I am new to this site. I really like this project and will be trying it in the future. Right now my 4 channel scope is destroyed. I am looking to build a new one. I really like Colin's project(at the link below) with 4 channel scope but I can't write code. I have not been able to find anyone that can write code. Does anyone know any other scopes that are 4 chanel that I can make? Has anyone made a 4 channel or has completed this scope? http://www.mccord.plus.com/FYP/DownLoad/Final_Report.pdf
Any help woud be appreciated.
Thank you!
Pat ste895(at)bellsouth.net
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Bingo600
Joined: 26 Aug 2004
Posts: 239
Helped: 14
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| 25 Sep 2005 15:47 Digital oscilloscope Project |
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Can't you use hos own program ??
http://www.mccord.plus.com/downloads.htm
/Bingo
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pat35
Joined: 25 Sep 2005
Posts: 7
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| 25 Sep 2005 20:54 Re: Digital oscilloscope Project |
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| do not understand cod i just bought 2 books on this but seems like it will be a while. is this cod ready to install if so please explain the board i already mad just for fun have you seen any one that has mad this scope any other help on how to install or fix wood be grateful
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scholar
Joined: 18 Nov 2004
Posts: 17
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| 01 Oct 2005 15:04 Digital oscilloscope Project |
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| Anyway to produce DSO besides using FPGA? I guess many of us do not have access to that facility. Microcontroller will be a good choice. Anyone tried wit PIC18F4550?
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pisoiu
Joined: 31 Dec 2002
Posts: 889
Helped: 24
Location: Romania
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| 01 Oct 2005 15:35 Digital oscilloscope Project |
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I've built years ago a demo board to see how far can I go with the sampling freq. If I remember corectly, the highest sample rate was 10Msps, with a Scenix MCU running at 100MHz. The acq. code was simply a huge worm of set and clear signals, along with store instructions, in order to achieve the highest sample rate, I couldn't afford any kind of loop mechanism. But if you want some real performance out of the DSO, I think there is no other way besides FPGAs.
/pisoiu
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abs
Joined: 29 May 2004
Posts: 9
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| 01 Oct 2005 16:19 Re: Digital oscilloscope Project |
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http://www.enetsystems.com/~lorenzo/scope/
Is there any one can help translate it?
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xjackal
Joined: 21 Jan 2004
Posts: 133
Helped: 13
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| 01 Oct 2005 17:18 Re: Digital oscilloscope Project |
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| abs wrote: |
h**p://www.enetsystems.com/~lorenzo/scope/
Is there any one can help translate it? |
first of all thank u for the link.next u will go to www.google.com and choose language tools.and then will enter this page to translate from italian to english.hope it works.
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abs
Joined: 29 May 2004
Posts: 9
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| 04 Oct 2005 15:09 Re: Digital oscilloscope Project |
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It is a unfinished project,
it is a 60Msps scope,I means it's an useful scope.
could any one help to finish it.
Or who can contect to the web master for more inf
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65656565
Joined: 07 Oct 2005
Posts: 3
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| 07 Oct 2005 16:50 Re: Digital oscilloscope Project |
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hi all,
i had a @ltera flex10k bd.......i'm intending to do a oscilloscope project......i did went to a few websites to read up about oscillosope project........but i'm not sure how to go about starting the design part of the FPGA, can anyone please kindly give me some pointers on how to get started? Thanks alot!
Regards,
65656565
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branek
Joined: 14 Jun 2001
Posts: 30
Helped: 1
Location: SERBIA
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| 25 Nov 2005 17:13 Re: Digital oscilloscope Project |
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Hello everyone,
great thread, one of the best on edaboard...
I just want to ask what is current development stage? Monoliv, ME, simce... are you alive!
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erodeboy
Joined: 15 Nov 2005
Posts: 86
Helped: 1
Location: India
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| 10 Jan 2006 10:44 Digital oscilloscope Project |
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| how to use lcd monitor as oscilloscope screen
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strombom
Joined: 23 Jun 2003
Posts: 39
Helped: 2
Location: Stockholm, Sweden
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| 12 Jan 2006 14:28 Re: Digital oscilloscope Project |
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| erodeboy: you have to provide a lot of more information to that question...
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luxboy
Joined: 18 Jun 2002
Posts: 31
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| 13 Jan 2006 8:55 Re: Digital oscilloscope Project |
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| I wonder that if fs is very high like 500Msps, how FPGA can control the buffer?
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shteo83
Joined: 15 Dec 2005
Posts: 10
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| 20 Jan 2006 14:20 Digital oscilloscope Project |
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| I also going to do a digital oscilloscope in my school project. I am uiding @ltera nios board,, as i know the frequecy rate of the board is about 33.33Mhz. Then actually how is the best sample frequecy of ADC? It should match the board frequecny or can be lower?
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