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RIGOL Chapter 12 Protocol Decoding
12-18 MSO8000 User's Guide
when the detected ACK is 1, red error report information (the display form is
related to the value of the horizontal time base and the display format of the bus)
is dispalyed.
SPI Decoding ( Option)
SPI bus is based on the master-slave conf iguration and usually consists of chip select
line (CS), clock line (SCLK), and data line (SDA). Wherein, the data lines include 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).
Master
Slave
MOSI
SCLK
MISO
CS
SCLK
SDA
(MI SO/ MOSI )
Figure 12-7 SPI Serial Bus
I n the decode setting menu, press Decode1 ïƒ Bus Type, then rotate the
multifunction knob
to select "SPI ". Press down the knob to select it. You can also
The detected ACK is 1
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