Logic analyzers - Page 1
Forum section: electronics / testgear

author: rhb
author_rank: Super Contributor
timestamp: February 06, 2019, 05:19:37 am
content: I'm looking for a mid-range LA. The DigiView DV815 looks quite attractive. The other option seems to be an HPAK 169xA, though that might be a bit spendy. I don't have space left for a standalone instrument.The deep transition logging is a big plus for the DV815, particularly for bursty, but mostly idle links.Depth is important as I want to reverse engineer a DSO bus.The Saelaes seem very expensive for what they offer.

author: Scratch.HTF
author_rank: Regular Contributor
timestamp: February 06, 2019, 06:37:09 am
content: What bus speeds are you expecting, and how many lines do you need to monitor?Also, what is the type of bus you are monitoring?

author: hli
author_rank: Frequent Contributor
timestamp: February 06, 2019, 09:22:01 am
content: The Digilent Digital Discovery might be an alternative. It also has quite big sample memory, and can do segmented captures. It will not sample at 1Gs/s, though (it claims up to 800Ms/s with their special adapter, but this might be a stretch).

author: Noy
author_rank: Frequent Contributor
timestamp: February 06, 2019, 12:53:49 pm
content: DSlogic Plus..

author: Doctorandus_P
author_rank: Super Contributor
timestamp: February 06, 2019, 04:05:35 pm
content: For my Oscilloscope I would not want to have a PC based one, because I need all the buttons and knobs for a decent gui.For a LA though a PC with a big monitor + Mouse + Keyboard is a quite good interface.My only experiences with LA's is Sigrok/Pulseview, combined with the "24MHz 8ch" Chinese clones of the first generation USBee and Saleae CY7C68013 hardware.As the title suggests these boxes sample upto 24Msps and have 8 input channels.What you can do with it with Pulseview is extremely impressive for an USD 7 LA box.Even if you can't do everything with it that you need your LA for, these boxes are nice to have as "extra" and they fit in a very small space on your desk.https://www.aliexpress.com/wholesale?SearchText=24MHz+8chWith a generic CY7C68013A board you can have upto 16 channels in Sigrok/Pulseview, but these boards do not have any input protection.Sigrok/Pulseview also supports much other hardware from different vendors. If for nothing else you can use it as some reference of other LA's on the market.https://sigrok.org/wiki/Supported_hardware

author: nctnico
author_rank: Super Contributor
timestamp: February 06, 2019, 11:57:58 pm
content: Too bad you don't have room but a Tektronix TLA700 series (preferably the TLA715 which offers best value for money) is a good choice when combined with a TLA7AA4 acquisition module. The probe cables are long and it works better when controlled remotely so you can put it on a high shelve (like I did) so it doesn't take any desk space. Older high-end logic analysers are dirt cheap on Ebay.

author: 0culus
author_rank: Super Contributor
timestamp: February 07, 2019, 12:10:11 am
content: Yeah, I have a TLA 715 with the 7N4 modules and it works great. The probe cables are definitely long enough to site the instrument off bench. Hooking a up a keyboard, mouse, and monitor would definitely be good. I don't currently have enough room for that, but when I do that's what I'm going to set up.