Serial protocol analysis: Hardware-based serial protocol decode and triggering
Keysight InfiniiVision Series, including the new 4000 X-Series, are the only oscilloscopes to use hardware-based serial protocol decoding. Other vendors’ oscilloscopes use software post-processing techniques to decode serial packets/frames, and therefore, have slow waveform and decode capture rates and could miss critical events and errors due to a long dead-time. Faster decoding with hardware-based technology enhances the probability of capturing infrequent serial communication errors.
After capturing serial bus communication, you can easily perform a search operation based on specific criteria and then quickly navigate to bytes/frames of serial data that satisfy the at search criteria. The 4000 X-Series can decode two serial buses simultaneously using hardware-based decoding and display the captured data in a time-interleaved “lister” display.
Serial protocol decoding can be used simultaneously with segmented memory and zone touch triggering. The 4000 X-Series supports: SENT, I2C, SPI, USB 2.O, RS232/UART, CAN, CANFD, LIN, FlexRay, CXPI, MIL-STE 1553, ARINC 429, I2S, user-definable Manchester, user-defined NRZ, and USB pd.