Spi Serial Decode - Agilent Technologies 7000B Series User Manual

SPI Serial Decode

To set up the oscilloscope to capture SPI signals, see
Signals"
Because of oscilloscope hardware resource limitations, you cannot decode SPI data while
N O T E
CAN or LIN triggering is selected.
For SPI triggering setup see
N O T E
To set up SPI serial decode:
1 Press [Serial]; then, select the SPI serial decode mode.
2 Press the Word Size softkey, and use the Entry knob to select the
3 Press Bit Order to select the bit order, most significant bit first (MSB) or
4 If the decode line does not appear on the display, press the [Serial] key
5 If the oscilloscope is stopped, press the [Run/Stop] key to acquire and
If the setup does not produce a stable trigger, the SPI signal may be slow enough that the
N O T E
oscilloscope is AutoTriggering. Press the [Mode/Coupling] key, then press the Mode
softkey to set the trigger mode from Auto to Normal.
You can use the Zoom horizontal sweep mode for easier navigation of the
acquired data.
InfiniiVision 7000B Series Oscilloscopes User's Guide
on page 292.
number of bits in a word.
least significant bit first (LSB), used when displaying data in the serial
decode waveform and in the Lister.
to turn it on.
decode data.
2
I C/SPI Triggering and Serial Decode
"SPI Triggering" on page 295.
11
"Setup for SPI
297