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 Posted: Dec 29, 2011 - 12:40 PM |
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Joined: Apr 20, 2007
Posts: 6066
Location: Long Island New York
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Japel wrote:
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You don't have to open it yourself, the manufacturer's blog has had pictures of it wide open, as well as sigrok project here: http://sigrok.org/wiki/Saleae_Logic
Saved me from doing the unthinkable!  THanks!
@ DAvid,
Untill I try it out, I will save my thoughts. The software is ok, but I will have to RTFM to fully understand the "Logic" behind the Logic
Jim |
_________________
Jim
I have decided that I am no longer going to plan anything in advance. In a court of law this is called Pre-Meditated, and does not look good for the defense.....
Timer function not working properly? Check CLKDIV8 Fuse first
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Posted: Dec 31, 2011 - 04:14 PM |
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Joined: Oct 26, 2002
Posts: 159
Location: Lancaster PA
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Hey Jim!
I'd pick the 1650 just because I can see the cable, jumpers and clips in the picture.
If you get confirmation that those parts are included with 1662 then I would pick it, newer, higher specs and lower cost/
Have a happy New Year!
Jeff |
_________________
Jeff Dombach, JLD Systems
"We do the stuff behind the buttons!"
Your source for embedded solutions with a 100% Guarantee.
http://www.jldsystems.com
Phone 717.892.1100
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Posted: Jan 04, 2012 - 06:45 PM |
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Joined: Apr 20, 2007
Posts: 6066
Location: Long Island New York
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WEll I got the Logic8 up and running and for what it is and does not a bad piece of kit!! The software is very straightforward and the hardware is a no brainer too. Worth the price.
Now, on to the big boy. I bailed on both analyzers. One was because the seller was a dick and in spite of the ad saying 100% functionalality he does not understand the unit and got pissed. Too bad jackwagon
The second one that had the clips in it at least says that the unit is sold AS IS so even though the screen says good who knows, and since I have to pay the shipping both ways not really worth the hassle
Then I found this one on the back pages. Cost less than the others and free shipping.
80 channels
color Touchscreen
PC Controlable(I have to get the software)
Newer
There are other function boards that fit inside it for expandability.
Good find |
_________________
Jim
I have decided that I am no longer going to plan anything in advance. In a court of law this is called Pre-Meditated, and does not look good for the defense.....
Timer function not working properly? Check CLKDIV8 Fuse first
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Posted: Jan 04, 2012 - 07:56 PM |
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Joined: Oct 26, 2002
Posts: 159
Location: Lancaster PA
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jgmdesign wrote:
Cost less than the others and free shipping.
80 channels
color Touchscreen
PC Controlable(I have to get the software)
Newer
There are other function boards that fit inside it for expandability.
Good find
This one sound much sweeter then the other two. Is it Agilent?
edit: Nevermind I see the logo now that I logged in. Kind of an odd looking thing with the big right panel only containing a single knob. |
_________________
Jeff Dombach, JLD Systems
"We do the stuff behind the buttons!"
Your source for embedded solutions with a 100% Guarantee.
http://www.jldsystems.com
Phone 717.892.1100
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Posted: Jan 04, 2012 - 08:36 PM |
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Joined: Apr 20, 2007
Posts: 6066
Location: Long Island New York
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yes it is odd, but there is a reason, there is a hard drive behind the panel and there is a load of space for the extra cards as this is a frame so I can go bigger than 80 channels or add other function cards. it is a touchscreen so you use the screen and the knob, push knob or touch screen to select. I liked the other two analyzers better fro the front panel, but I will look past that for this one and the price. $150.00
Jim |
_________________
Jim
I have decided that I am no longer going to plan anything in advance. In a court of law this is called Pre-Meditated, and does not look good for the defense.....
Timer function not working properly? Check CLKDIV8 Fuse first
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Posted: Jan 05, 2012 - 12:31 AM |
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Joined: Apr 20, 2007
Posts: 6066
Location: Long Island New York
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When I get the color analyzer I will do a matchup between it and the Logic8 on the same circuit and see what the results are and let everyone know
Jim |
_________________
Jim
I have decided that I am no longer going to plan anything in advance. In a court of law this is called Pre-Meditated, and does not look good for the defense.....
Timer function not working properly? Check CLKDIV8 Fuse first
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Posted: Jan 08, 2012 - 03:03 AM |
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Joined: Jul 16, 2009
Posts: 1579
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Hi Everyone,
I received both the OLS and the Itead "Mini Logic" so I thought I'd post my initial impressions of them:
OLS: $50 (board only)
+ Higher capture speed (200 Mhz) (although I could only get it to work at 100 Mhz, haven't sought support yet)
+ Firmware was easy to update and is constantly being updated.
+ Board is nice and clean, red silkscreen.
- Limited capture memory (24K, but RLE feature can expand it many times)
- Software (java based) is nice, but still beta.
- No case, not even rubber legs.
- Comes with no cables ($6 more for one with grabbers)
Itead Mini Logic: $49.90 (package)
+ Saleae/USBee/USB Blaster compatibility offers many polished software choices. More protocol analyzers.
+ Virtually unlimited capture memory
+ Comes in a case
+ Comes with 3 cables (1) 2x7 header to squid female for 0.025" posts or breadboard jumper cables (2) 2x7 header to grabbers (soldered on) (3) 2x7 header to 2x5 header
- Lower capture speed (24 Mhz)
- Board is a mess of leftover flux (I hate dirty boards)
- Unknown firmware updates. None posted as of now, maybe someday, but then again maybe never.
- Pictures on their site are misleading, it does not come with grabbers that detach, but a dedicated grabber cable assembly
I did notice that to properly analyze a 1.2 Mhz SPI sample I had to sample at 8 Mhz, so roughly 8 times my SPI speed. This would make the 24 Mhz speed of the Itead unit capable of analyzing communication that is 3 Mhz or slower. Obviously the OLS can capture faster with much less data, but how often will you need it?
The grabbers on both are cheap. I didn't have any problems with them grabbing on, but the cable they used on it is cheap and you can't just pull the wires apart, you must carefully cut them apart. The cable end is soldered directly to the cheap grabber.
If I were just going to buy one it would be the Itead. I like the OLS, but I'd grab for the Itead first if analyzing anything slower than 3 Mhz. Even though a real Saleae would be 3 times the price, it probably comes with a clean of flux board, much nicer grabbers, and a premium case.
Thanks,
Alan |
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Posted: Jan 08, 2012 - 02:22 PM |
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Joined: Apr 20, 2007
Posts: 6066
Location: Long Island New York
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Good notes!
My HP should arrive this week. So I will have my finds up shortly.
The Saleae I noticed needs a high smaple rate as well, but what bugs me is when I am looking at an SPI stream no matter what sample rate the clock does not always look correct. The data is fine, but it is the reason I want to match it up to the HP to see what happens.
Jim |
_________________
Jim
I have decided that I am no longer going to plan anything in advance. In a court of law this is called Pre-Meditated, and does not look good for the defense.....
Timer function not working properly? Check CLKDIV8 Fuse first
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Posted: Jan 08, 2012 - 03:23 PM |
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Joined: Jul 16, 2009
Posts: 1579
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| That HP looks sweet for sure. I agree I like a clock to look nice and consistent and the ebb and flow of sampling at a lower speed never looks good. |
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Posted: Jan 08, 2012 - 06:51 PM |
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Joined: Apr 20, 2007
Posts: 6066
Location: Long Island New York
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A low sample will never give you a nice output. My SPI has a 500khz clock, and I sample it at no less than 2mhz. There seems to be no better at hight rates either. When it comes to sampling oyu always oversample to get the highest resolution to begin with. I tried the Logic8 on differnt computers....P4, iCORE3/5/7's and it does not matter. Hence I want to try it on a stand alone unit and see what happens. I am still very pleased with the Logic8 and will recommend it. I just would like to check it against something else.
Jim |
_________________
Jim
I have decided that I am no longer going to plan anything in advance. In a court of law this is called Pre-Meditated, and does not look good for the defense.....
Timer function not working properly? Check CLKDIV8 Fuse first
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Posted: Jan 10, 2012 - 06:44 PM |
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Joined: Apr 20, 2007
Posts: 6066
Location: Long Island New York
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MY NEW TOY IS HERE!!!
It's warming up in the lab now. Will do some comparisons and let everyone know what I think(not that anyone cares)
Jim |
_________________
Jim
I have decided that I am no longer going to plan anything in advance. In a court of law this is called Pre-Meditated, and does not look good for the defense.....
Timer function not working properly? Check CLKDIV8 Fuse first
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Posted: Jan 10, 2012 - 06:48 PM |
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Joined: Jul 16, 2009
Posts: 1579
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| New toy day is always a good day! |
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Posted: Jan 11, 2012 - 12:20 AM |
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Joined: Apr 20, 2007
Posts: 6066
Location: Long Island New York
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Onr thing I have learned with the LOGIC8 is do not run it, and Studio running debugwire off the dragon at the same time. Especially on a centrino processor laptop(yeah that old!)
My win7 athlon64x2 with 4gbram and a 3.0ghz chip just makes it. so the laptop runs one app, the win7 the other.
Jim |
_________________
Jim
I have decided that I am no longer going to plan anything in advance. In a court of law this is called Pre-Meditated, and does not look good for the defense.....
Timer function not working properly? Check CLKDIV8 Fuse first
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