Spi Trigger And Serial Decode; Setup For Spi Signals - SIGLENT SDS1000X-E Series User Manual

SDS1000X-E&SDS1000X-U User Manual

SPI Trigger and Serial Decode

Please in order of "Setup for SPI Signals", "SPI Trigger" and "SPI Serial
Decode" to trigger and decode the signals.

Setup for SPI Signals

Setting the SPI (Serial Peripheral Interface) signal includes two steps: connecting
the CLK, MISO, MOSI and CS signals to oscilloscope; specifying the parameters of
each input signal.
1. Press the Decode key to enter the DECODE function menu.
2. Press the Decode softkey and select the desired slot (Decode1 or Decode2).
3. Press the Protocol softkey and then select SPI by turning Universal Knob.
4. Press the Signal softkey to enter the SIGNAL menu as Figure 35 shows.
5. Set CLK (clock signal):
a. Press the CLK softkey to enter CLK menu.
b. Press the CLK softkey to select the channel that is connected to the SPI
clock signal.
c. Press the Threshold softkey to set the SPI clock signal's threshold voltage
level by Universal Knob. The threshold voltage level is for decoding, and it
will be regard as the trigger voltage level when set the trigger type to
serial.
d. Press the Edge Select softkey to set the oscilloscope will samples at clock
signal's rising edge or falling edge.
e. Press the
6. Set MISO:
a. Press the MISO softkey to enter the MISO menu.
b. Press the MISO softkey to select the channel that is connected to the SPI
MISO signal.
c. Press the Threshold softkey to set the SPI MISO signal's threshold voltage
Figure 46 SINGAL Menu
softkey to return previous menu.
Figure 47 CLK Menu
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