| Products > Test Equipment |
| Logic analyzer TLA5202 vs USB analyzers (probe density, features, speed) |
| << < (3/6) > >> |
| nctnico:
--- Quote from: TomKatt on February 23, 2023, 06:42:29 pm --- --- Quote from: thm_w on February 22, 2023, 11:29:12 pm ---If you realllly need 1GHz sample rate or the 32 channels then U3Pro32 would be what I would get. But, read some of the existing posts and threads here on the subject. Download the software and try it out, etc. --- End quote --- I have no experience with measurements beyond a few 10's of MHz, but from what I understand when you start moving beyond 400-500Mhz, the issues aren't so much the LA itself but rather the probes... I understand that it's damn near impossible to accurately grab samples at those frequencies with fly wire probes (even the coax ones that come with the Dreamlabs versions). Probing at that level is an art unto itself. --- End quote --- Indeed. For high speed, you'll need much better probes. Instead of he the TLA5202 I'd look at the TLA700 series or TLA7000 series. These use acquisition modules and some of the higher end modules use active-FET probes. Typically this equipment can be bought very cheap from Ebay. |
| newtekuser:
I purchased the innomaker (kingst) LA5016, should have plenty of oomph and didn't break the bank. |
| newtekuser:
--- Quote from: thm_w on February 23, 2023, 02:37:39 am ---Think it depends on what feature/spec you choose to compare. https://accusrc.com/uploads/datasheets/Tektronix%20TLA5203%20Datasheet.pdf https://engineering.purdue.edu/~ece437l/papers/tla5201qs.pdf https://sigrok.org/wiki/Tektronix_TLA520X https://www.ebay.com/itm/204147974269 Anyone know what protocols the 5201 comes with? --- End quote --- Doesn't come with any, ask me how I know lol The TLA software has an option to import 'support packs' but doesn't provide any. Since I can't find them on the web I assume they can be purchased from Tektronix for a truckload of money or stuck writing your own but I don't even see an SDK so probably not even possible without reverse engineering. I would like to be proven wrong. (there is a 3rd party SPI decoder for the TLA600 though) |
| newtekuser:
ChatGPT gets it wrong about protocol decoding, here's what it claims the TLA5202 can do: --- Quote ---The TLA5202 logic analyzer can decode I2C (Inter-Integrated Circuit) protocols. This is because the TLA5202 is a modular instrument and can be configured with different modules to support various protocols. To decode I2C protocols with the TLA5202, you would need to install a module that supports I2C decoding. Tektronix offers the TLA7SA16 I2C/SPI serial analyzer module, which provides high-speed decoding and analysis of I2C and SPI protocols, and is compatible with the TLA5202. Once the TLA7SA16 module is installed, you can set up the TLA5202 to capture I2C data and decode it using the module. The TLA5202 software includes tools for configuring trigger conditions, setting up protocol analysis, and viewing decoded data in a user-friendly format. In summary, to decode I2C protocols with the TLA5202, you would need to ensure that you have the appropriate module installed and configured, and use the software tools to capture and analyze the data. --- End quote --- |
| RomDump:
--- Quote from: newtekuser on March 08, 2023, 03:16:33 pm ---The TLA software has an option to import 'support packs' but doesn't provide any. Since I can't find them on the web I assume they can be purchased from Tektronix for a truckload of money or stuck writing your own but I don't even see an SDK so probably not even possible without reverse engineering. I would like to be proven wrong. (there is a 3rd party SPI decoder for the TLA600 though) --- End quote --- The official Tektronix SPI and I2C support packs are in the file section of Groups.IO Forum. Xdevs has a guide to write your own. The Moving Pixel Company and Big Bear had hardware adapters. |
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