Category Sitemap
Home / Our Businesses / Test & Measurement / Products / Digital Oscilloscopes /
Digital Oscilloscopes

DL7440/DL7480
Features
  1 2 3 4 5 6 7  
Features (1)Features (2)Simple and Enhanced TriggersPower Analysis Functions
Serial Bus Analysis FunctionsConnecting with PC via WebDAVRear Panel 
 
A Variety of Optional Functions to Provide you a Best Solution for your Application
Three serial bus analysis functions (I2C, CAN, and SPI) are available together "in one instrument."
These options provide physical-layer observation and analysis of serial bus signals. Evaluations from such analyses are essential to solve communication failures resulting from signal deterioration and unpredictable external noise.
I2C Bus Trigger and Analysis

  I2C Bus Trigger and Analysis
I2C bus signals (SCL and SDA), used extensively in home electronics such as analog and digital televisions, and video cameras, and in communications equipment such as mobile phones can be captured with specialized triggers and displayed as waveforms. Triggers can be based on start conditions, userspecified address and data patterns (Data 1 and Data 2), non-ack (when acknowledgement is not received), and other conditions for reliable capturing of I2C signals. You can also set triggers based on combinations of I2C bus trigger conditions (SCL and SDA) and signal inputs on channels 3-8 (combination triggers).
Captured waveforms can be analyzed in a time-series manner, and the analysis results at each byte is displayed in a list along with the presence/absence of ACK field codes. When an analysis result is selected with the cursor, the corresponding portion of the waveform is automatically enlarged in the zoom area.
You can quickly search the analyzed results for a specific address or data pattern from within the analysis results.
Two pairs of I2C busses can be input at the same time (SCL: CH1 & CH3; SDA: CH2 & CH4), and then analysis can be performed alternately on either bus.
 
I2C Address and Data Trigger Setup Menu I2C Bus Analysis Results Display
CAN Bus Trigger and Analysis

Using dedicated triggers, CAN bus signals can be captured and displayed as waveforms. (The CAN bus option supports both highspeed and low-speed CAN. CAN is used widely in the internal communication busses of automobiles, FA machinery, medical equipment, and other devices.) Analysis performed according to the CAN protocol can be displayed in a list together with the waveforms. Two types of differential probes are available for measuring CAN bus signals (sold separately).
Trigger conditions can be set from fields or combinations of fields in CAN data frames (ID, Data, RTR bits, etc.), enabling reliable capturing of CAN bus signals. Triggers can also be activated on an error frame.
Captured CAN bus waveform data can be analyzed in a timeseries, and the ID and Data at each frame displayed in hexadecimal or binary notation. Frame and error types can also be displayed simultaneously. By selecting a frame with the cursor, you can display an enlarged version of the corresponding portion of the waveform on the screen.
Search the analysis results for a specific CAN frame—ID, Data, Remote (RTR) or Error frame. The specified field is automatically identified and displayed in the on-screen zoom window.
A waveform showing the stuff bit position can also be displayed.

Hight-speed CAN (ISO11898)

Hight-speed CAN (ISO11898)
Dominant (0), Recessive (1)

500 MHz Differential Probe (701920) 200 MHz Differential Probe (701922)

 
CAN Bus Trigger Setup Menu


CAN Bus Analysis Results Display

SPI Bus Trigger and Analysis*
  Example of a connection to a SPI bus

Example of a connection to a SPI bus



Signals in the SPI bus, a synchronous 8-bit serial bus widely used for inter-IC and data communication in embedded systems and in other applications, can be captured using dedicated triggers. The captured results are then analyzed based on the SPI protocol and
can then be displayed together with the waveform.
Triggers are activated on user-defined conditions of the MOSI (master output slave input) and/or MISO (master input slave output) data signals on the SPI bus. Data strings of 1-8 bytes can be defined.
Two types of trigger patterns can be set (A pattern, B pattern, or both), allowing a trigger to be activated, for example, upon data read out from the slave (MISO, pattern B) in response to a specific command from the master (MOSI, pattern A).
Data analysis results and SS (slave select) bits can be displayed in a list together with the waveforms.
After analyzing the acquired data, you can perform high speed searches for a specific MOSI or MISO data pattern (1-8 bytes).

SPI Bus Trigger Setup menu SPI Bus Analysis Results Display SPI Bus Data Search Setup menu
SPI Bus Trigger Setup Menu SPI Bus Analysis Results Display* SPI Bus Data Search Setup Menu*
* The SPI bus analysis and search functions are standard features. The SPI bus triggers are available only as an option.

Product Home Specifications Software Testimonials Accessories
Viewing PDF files requires Adobe Reader.
GLOBAL  
YOKOGAWA

Powered by Ultraseek
·  DL7440/DL7480
See Also...
DL Series Selection Guide
Find the right one for you!
more
Serial Bus Analyzer Selection Guide
For I2C, CAN, and SPI analysis
more
Probes for Digital Oscilloscopes
Supporting a variety of measurement
more
Accessories for DL series
Accessories other than probes
more
FAQ
For the DL series
more
  1 2 3 4 5 6 7