Logic Pro 8 (Black) - Saleae 8-Channel Logic Analyzer

Product Information

We also tried the 1-Wire decoder with a DS2431 EEPROM. The software identified the 1-Wire reset command, and the 1-Wire ‘search rom’ command (0xf0). The Logic records 8 channels at 24MHz. The Windows software has useful features, and there’s an SDK if you want to write your own apps. Linux and Mac versions are under development. We really like this logic analyzer, and plan to use it to illustrate future articles. When it debuted, the Logic was so popular that it was hard to buy one. It’s now widely available, and Saleae gave us one to try. Read our review below.

I looked at both this logic analyzer and the Usbee SX just last month, when I finally decided that my old Tektronix 1241 was no longer worth the electricity it burned, and even with GPIB couldn’t give me the flexibility I needed. This transaction shows the host issue the read configuration register command (0x05), and the SRAM response (0x41).Cross-platform. Works on Linux, Mac OS X, Windows, FreeBSD, OpenBSD, NetBSD, Android (and on x86, ARM, Sparc, PowerPC, ...).

There are Differential Non-Linearities [2] and Integral Non-Linearities [3] caused by mis-matching of on-die ADC capacitors. Big DNL spikes caused by an apparent mismatch between capacitors used in simulation and production, James Adams confirms. Now if I could only find a decent USB 2.0 oscilloscope. I think though, that that’s one realm where I still need a real device, perhaps with a decent USB transfer and control interface. 250MS/sec+, 2+ channels, 600V+ and decent triggering options (say an external trigger that I provide with the logic analyzer?) The sigrok project aims at creating a portable, cross-platform, Free/Libre/Open-Source signal analysis software suite that supports various device types (e.g. logic analyzers, oscilloscopes, and many more).

We’ve covered Pulseview being used in combination with cheap accessible analyzers before — a must-watch if you need to get yourself up to speed on the value they provide to a hobbyist. If an oscilloscope is what you need and a smartphone is what you have, perhaps you’ll enjoy the Scoppy firmware for the Pico. Ian – re other products: I don’t want to post a commercial for anyone, so I won’t mention my favorite by brand name. Just do a google search for “logic analyzer”. There’s about a zillion products in this price range out there these days. ericwertz – if you need to look at 50mhz digital data, then 100Mhz sampling is not nearly enough. Nyquist theory is meaningful for analog analysis, and is a limitation that applies directly to the highest frequency pure sine wave component of the signal – exclusive of phase. Digital analysis is very different. You could barely represent a square wave sampling at Nyquist, and thus would get virtually no timing information from the resulting waveforms. You’ll need to sample 4-10 times your bus rate to get meaningful timing information.

The software analyzes and displays signal captures. The primary configuration options are the sampling rate (200KHz-24MHz) and number of samples (millions to billions). We were able to sample at 24MHz, but the top speed depends on how much other stuff is using the USB bus. A 24MHz sampling rate can capture signals up to 12MHz, we found this suitable for all the protocols we use. The total number of samples is limited only by the available PC RAM. File format support. Supports various input/output file formats (binary, ASCII, hex, CSV, gnuplot, VCD, WAV, ...). wooddragon48 has updated components for the project titled 3D Printed Repeating Crossbow/Sling Shot Pistol. Broad hardware support. Supports many different devices (logic analyzers, oscilloscopes, multimeters, data loggers etc.) from various vendors.A logic analyzer records bus communications between two chips. If you’ve ever had a problem getting two chips to talk, or wanted to reverse engineer a protocol, a logic analyzer is the tool you need to spy on the bus. fiddlingjunky said: “One thing to keep in mind is the RP2040/Pi Pico does have a hardware bug (slightly mis-specced internal capacitances) that create ~9LSB non-linearity (0.22% of measurement range) at 4 points.”