Rigol MSO8204A Rigol MSO8000A series user guide

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the master input/slave output (MISO) data line and master output/slave input (MOSI)

data line. The oscilloscope samples the channel data on the rising or falling edge of

the clock signal (if the source is an analog channel, the oscilloscope will also judge

each data point (logic "1" or logic "0") according to the preset threshold level).

Figure 15.7 SPI Serial Bus

In the decode setting menu, press Decode1 > Bus Type, then rotate the

multifunction knob to select "SPI". Press down the knob to select it. You can also

press Bus Type continuously or enable the touch screen to select it.

1. Enable or Disable the Bus

Press Bus Status continuously to enable or disable the decoding function.

2. Quickly Apply SPI Trigger Settings to SPI Decoding

Press Copy Trig to copy the SPI trigger settings and apply them to SPI decoding

function (set the corresponding SPI decoding parameters automatically). The

settings that can be copied include CS/timeout mode, CLK, CLK, MISO, MOSI,

Width, and etc. For analog channels, the threshold level settings will also be

copied.

3. Set the ModePress Mode to enter the mode setting menu.

Press Mode continuously to select "Timeout" or "CS".

- Timeout:

you can perform frame synchronization according to the timeout, and the

timeout value must be greater than half of the clock cycle. Press Timeout, and

then rotate the multifunction knob or use the pop-up numeric keypad to set

the timeout value. The adjustable range of the timeout value is from 8 ns to 10

s. By default, it is 1 μs.

- CS:

contains a chip select line (CS). You can perform frame synchronization

according to CS. When "CS" is selected,

Protocol Decoding

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Rigol MSO8204A oscilloscope