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N5402A Automotive Serial Data Analysis Software for Infiniium
8000 Series Oscilloscopes
- Protocol decode of the CAN and FlexRay serial buses
- Extensive search capability of CAN and FlexRay frames
- FlexRay jitter and eye-diagram measurements with automatic mask testing
- FlexRay mask failure analysis using eye unfolding The event-driven CAN (Controller Area Network) serial bus has become the backbone for communication among many separate controllers, sensors, actuators, and ECUs located throughout automotive and industrial designs. The time-triggered FlexRay serial bus is gaining rapid adoption for more safety-critical and drive-by-wire applications where higher baud rates and a deterministic architecture are required. Software engineers typically use dedicated protocol analyzers for higher-level abstract observation of the data layer information of these
Features
buses – but without seeing the physical/signal layer characteristics. Hardware engineers often use traditional oscilloscopes to view the physical layer characteristics of automotive serial bus signals, but without being able to easily decipher protocol level information. The Agilent Technologies N5402A Automotive Serial Data Analysis software allows engineers to view both the protocol layer information and physical layer signal characteristics inside a single instrument – the Infiniium oscilloscope.
with embedded clocks (non-explicit).
5.0 Mbps, and 10 Mbps) and test
10 Mbps FlexRay) to each Byte Start
Sequence (BSS) event of every frame. Figure 5. FlexRay eye-diagram and jitter analysis using an Infiniium
Figure 10. Timing measurements on the errant FlexRay pulse coding error in our FlexRay system. 100 ns for 10 Mbps FlexRay systems. two BSS pulses shown in Figure 10. timing problem in our FlexRay design.
automotive serial data analysis menu. Table 1. FlexRay mask files
2 Stop-on-failure
- It should be noted that masks and clock recovery methods have not been fully defined within the FlexRay physical layer test specification for testing multi-node synchronous
FlexRay systems as of Agilent’s release of the N5402A automotive serial data analysis software option.
- Oscilloscope sample rate and memory depth have been pre-selected to capture a default cycle time of 3 ms. Instructions are i ncluded within each mask file on how to easily
modify the acquisition time to match your synchronous FlexRay system cycle time using a standard text editor.
- Testing for an observation window of 9.5 µs on 10 Mbps FlexRay signals is in compliance with the physical layer conformance test specification, version 2.1, revision A,
5.0 Mbps systems and 38 µs for 2.5 Mbps systems.
Table 1. FlexRay mask files (continued)
- It should be noted that masks and clock recovery methods have not been fully defined within the FlexRay physical layer test specification for testing multi-node synchronous
FlexRay systems as of Agilent’s release of the N5402A automotive serial data analysis software option.
- Oscilloscope sample rate and memory depth have been pre-selected to capture a default cycle time of 3 ms. Instructions are i ncluded within each mask file on how to easily
modify the acquisition time to match your synchronous FlexRay system cycle time using a standard text editor.
- Testing for an observation window of 9.5 µs on 10 Mbps FlexRay signals is in compliance with the physical layer conformance test specification, version 2.1, revision A,
5.0 Mbps systems and 38 µs for 2.5 Mbps systems.
- It should be noted that masks and clock recovery methods have not been fully defined within the FlexRay physical layer test specification for testing multi-node synchronous
FlexRay systems as of Agilent’s release of the N5402A automotive serial data analysis software option.
- Oscilloscope sample rate and memory depth have been pre-selected to capture a default cycle time of 3 ms. Instructions are i ncluded within each mask file on how to easily
modify the acquisition time to match your synchronous FlexRay system cycle time using a standard text editor.
- Testing for an observation window of 9.5 µs on 10 Mbps FlexRay signals is in compliance with the physical layer conformance test specification, version 2.1, revision A,
5.0 Mbps systems and 38 µs for 2.5 Mbps systems.
and debugging these types of designs. acquisition, as shown in Figure 13. Figure 13. Mixed-signal measurements in automotive system
For the most up-to-date and complete application and product information, please visit our product Web site at: www.agilent.com/find/scopes Related literature Publication title Publication type Publication number Infiniium 8000 Series Oscilloscopes Data Sheet 5989-4271EN Infiniium Series Oscilloscope Probes, Accessories, and Options Data Sheet 5968-7141EN Agilent Technologies EZJIT and EZJIT Plus Jitter Analysis Software for Infiniium Series Oscilloscopes Data Sheet 5989-0109EN N5450A InfiniiMax Extreme Temperature Extension Cable Data Sheet 5989-7542EN Extending the Range of Agilent InfiniiMax Probes Application Note 5989-7587EN Finding Sources of Jitter with Real-Time Jitter Analysis Application Note 5988-9740EN
Ordering information
DSO8064A 4-channel 600-MHz DSO DSO8104A 4-channel, 1-GHz DSO MSO8064A 4+16-channel, 600-MHz MSO MSO8104A 4+16-channel, 1-GHz MSO N5402A (or Option -008) CAN/FlexRay serial data analysis 1130A 1.5-GHz differential active probe amplifier E2675A Differential probe browser kit N5450A InfiniiMax Extreme Temperature Cable Extension Kit
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