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SDS1000X-E User Manual
92
WWW.SIGLENT.COM
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.
Figure 44 SINGAL Menu
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 softkey to return previous menu.
Figure 45 CLK Menu
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 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.
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