Micsig Smart Series, User Manual

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Chapter 12 Serial Bus Trigger and Decode (Optional)
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⚫ SPI serial bus
The measured signal channel Ch1 is connected to CLK, Ch2 channel is connected to DATA, the bus idle state is
high, the clock rising edge is sampled; the data word length is 4 bits; the CS chip select is off; the trigger mode
matches the “Data” at 0001, please follow the steps below:
(1) Tap S1 to open the decode channel, and click S1 again to open the bus configuration menu;
(2) Select the bus type as “SPI”, click clock as “Ch1” rising edge, the data is “Ch2” high level, and the data
word length is “4bit”;
(3) Open the trigger setting menu, click data on the touch screen, and use the virtual soft keyboard to set the
data to be matched as “0001”;
(4) Adjust the threshold levels of two channels according to signal amplitude; the SPI trigger graphic interface
is shown in Figure 12-20: