Chapter 8 Protocol Decoding RIGOL
MSO4000/DS4000 User’s Guide 8-21
setting. If the data channel in the trigger setting is an analog channel, the
threshold level will also be copied.
Note:
― After executing the copy operation, MISO Polarity in the decoding
setting will be set to
(positive polarity) automatically.
― The source channel of MOSI data line will be set to “None”
automatically.
Note: The copy function is only available when the current trigger type is “SPI”;
otherwise, CopyTrig is not available.
Tip
When the current trigger type is “SPI
”, performing the copy operation at any time
can quickly apply the current SPI trigger setting (the specified parameters) to SPI
decoding. Then, you can still set the SPI
decoding parameters according to the
introductions below.
3. Set the decoding mode
Press Mode to select the “TimeOut” or “CS” decoding mode.
TimeOut
When “TimeOut” is selected, you can set the timeout time of SPI decoding.
Press TimeOut and turn the multi-function knob or the inner knob of
the navigation knob to adjust the timeout time at a relatively smaller step or
turn the outer knob of the navigation knob to adjust the timeout time at a
relatively larger step. The adjustable range is from 100 ns to 1 s. The
default is 1 us.
Note: The larger the rotation amplitude of the outer knob of the navigation
knob is, the faster the variation of the value will be. When you need to
adjust the timeout time within a relatively larger range, this function can
help you quickly finish the setting.
CS
When “CS” is selected, press SS to enter the SS (chip select channel)
setting submenu. In this submenu,
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