I received my Saleae Logic 8 analyzer in the mail a few days ago. I pre-ordered it maybe a day or two after they opened up pre-orders for their new logic analyzers earlier this year. Last I checked they haven’t started shipping the Logic Pro 8/16 yet (USB 3.0/faster). I ordered the Logic 8 as I typically use the LA for 100KHz I2c and *kbaud serial analysis. Today I used it to check some singles on a microcontroller (16F1509). I flashed the micro with some sample code to confirm it worked; it did. The LA worked just fine but I noticed something and I’m not sure if it’s an over zealous algorithm, inductance, a ghost or what? I get a lot more wiggle in the analog display in the LA app than I do on my scope. Full disclosure: my scope has not been calibrated for over two years I still trust it’s input and I use it in the 10MHz+ range all the time, seems pretty solid. This is a 100ms transition off and on. I’ll be keeping my eye on this.. naturally I checked this at max sample rate (25MHz) after I noticed this.. same wiggle.
The same signal but with the analog view in 8x mode:
I read through the online manual but I suspect the beta software documentation is lagging behind a bit. Version 1.1.21 said there was a “New voltage measurement tool for analog”.. I see there is a .25 just out so I’ll try that. Still, regardless I have zero regrets and love this thing. I like the bigger form.. I’m also glad they have these black ground clips but wish they would make two changes.
1. Channel 0 is a black leaded wire.. like all the grounds. Maybe white or any other color?
2. In the older application the channels were color coded in the application to match their wire leads.. that was nice 🙂
.. ask and though shall receive.. I downloaded 1.1.25 and there was my voltages. Didn’t even get to draft!
This is a great tool and a must-have if you’re doing any kind of microcontroller work. Maybe I’ll try the Logic Pro’s out once they get caught up with all the pre-orders.