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Prezzo IVA esclusa (inclusa) più spese di spedizione.
Pronto per la spedizione in 2 o 3 giorni lavorativi
- Codice Mirifica: 101674
- Codice MEPA: MFMP-101674 (+ MFMP-SPESE_FISSE, opz. "codici del catalogo")
- Nome produttore: Red Pitaya
- Codice produttore: STEMLAB LOGIC ANALYZER PRO
- A magazzino: 9
- Supplier lead time: Please contact us.
The Logic Analyzer application enables the representation of the binary states of digital signals. The Logic Analyzer can both deal with purely binary signals, such as GPIO outputs of the Raspberry Pi or Arduino board, as well as analyze different bus (I2C, SPI, and UART) and decode the transmitted data. All Red Pitaya applications are web-based and do not require the installation of any native software. Users can access them via a web browser using their smartphone, tablet or a PC running any popular operating system (MAC, Linux, Windows, Android, and iOS).
Logic Analyzer application possibilities:
Basic Logic Analyzer - Without the Logic Analyzer extension modul – Using directly the GPIO expansion connector of the STEMLab board. Works only together with STEMlab 125-10, the analyzer is no stand alone device!
Logic Analyzer PRO - With the Logic Analyzer extension module – Enabling different logic levels, board protection and higher performances. Works only with STEMlab 125-14 device, the analyzer is no stand alone device!
|Basic Logic Analyzer||Logic Analyzer PRO|
|Sampling rate (max.)||12MS/s||125ms/s|
|Maximum Input Frequency||3MHz||50MHz|
|Supported bus protocols||I2C, SPI, UART||I2C, SPI, UART|
|Input voltage||3.3V||2.5 ... 5.5V|
|Level thresholds||-||0.8V (low)
|Input impedance||-||100k, 3 pF|
|Trigger types||Level, edge, pattern||Level, edge, pattern|
|Memory depth||1 MS (typical)||1 MS (typical)|
|Minimum pulse duration||100ns||10ns|
Red Pitaya products are warranted to be free from manufacturing defects for 30 days from the date of purchase. No other express or implied warranties are provided. 30 day return policy & 1 year warranty.
Analyzing Binary Signals
By selecting the gear button behind the DIGITAL selection field you enter the menu for the channel configuration. In the LINES register, the channels can be activated or deactivated by simply clicking the check mark. As long as no bus systems have been configured, the channels operate as purely digital inputs and correspondingly show the progress. The tab ACQ opens the selection field for the Sample rate settings. When selecting the values there is one thing to note: the sample rate has a significant influence on the time section, which can be represented. The memory depth of the Logic Analyzer applications is 1 MS, so it can store and display 1,000,000 binary values. From this it is clear that the sampling rate determines how many values are recorded per second. If we choose the highest sampling rate (125MS/s), 125,000,000 values would be recorded per second. Since 1,000,000 values can be stored is the time memory, we get a 0.008 second time window. With a sampling rate of 1MS/s, the time window of the recorded signal will be one full second.
When the Pre-sample data buffer value is set, at which point of the recording the trigger event is located. This makes particular sense if you want to find out what happened before the defined trigger event. To illustrate with an example: the sample rate is set to 4MS / s, the stored time segment thus amounts to approximately 0.25s = 250ms. If the Pre-sample data buffer is set to 10ms, then the recorded signal shows what has happened 10ms before the event, and 240ms after the event.
By clicking the gear behind TRIG settings, the trigger menu is opened. Each channel can be set as a trigger source with the desired condition. For acquisition to start, the Trigger source and Rising Edge needs to be defined.
The possible criteria for Trigger event are next:
X - Ignore no event
R - Rising rising edge
F - Falling Falling edge
E - Either Edge change (rising or falling edge)
By clicking the RUN button the recording is started. The status display informs you whether the process is still running (WAITING) or has already been completed (DONE). After finishing the acquisition, the results are displayed in a graph. Additional trigger options LOW and HIGH are used for the so called Patterned triggering. For example: If you set the trigger source to be DIN0 – Rising edge (to have one channel defined as a trigger source with a rising or falling edge is a mandatory condition for the acquisition to start), DIN1 to HIGH and DIN2 to LOW this will cause such a behavior that the application logic will wait for the state where DIN0 goes from 0 to 1, DIN1 is 1 and DIN2 is 0 to start the acquisition.
Decode BUS Data
In the DIGITAL → BUS menu the decoding of the desired lines can be selected. Up to 4 buses can be defined. The available decoding protocols are I2C, UART, and SPI. By selecting the desired protocol, the setting menu for the selected protocol is opened.
Two options are possible for the display of the decoded data: firstly, the data is placed as a separate layer in the graph directly on the signal. Secondly, using the DIGITAL → DATA menu where the decoded data are represented in a table format. You can select ASCII, DEC, BIN and HEX data formatting. With the EXPORT button the decoded data can be packed into a CSV file. This then ends up directly in the download folder and can be used for further analysis.
As with the Oscilloscope the Logic AnalyzerApp also provides CURSORS for quick measurements. Because there are no variable amplitude readings but only discrete signal levels, the cursors are available exclusively for the X axis. When enabled, the cursors will show the relative time respectively to zero point (trigger event) and the difference between the two.
- STEMlab 125-14 Starter Kit or
- STEMlab 125-14 Diagnostic Kit
Scope of Delivery
- Logic Analyzer Software license (unlimited)
- Logic Analyzer probes (8 channel)
- Logic Analyzer extension board (Works only with STEMlab 125-14 device, the analyzer is no stand alone device!)
- Aluminium case
- Manufacturer: Red Pitaya
- Manufacturer's article name: STEMLab Logic Analyzer PRO (works only with STEMlab 125-14 device, the analyzer is no stand alone device!)