Instructions

RIGOL Chapter 2 Command System
2-26 MSO5000-E Programming Guide
the data is transmitted first.
 LSB: indicates Least Significant Bit transmission sequence, i.g. the lowest bit of
the data is transmitted first.
Return
Format
The query returns MSB or LSB.
Example
:BUS1:SPI:ENDian LSB /*Sets the endian of data transmission of SPI decoding
to LSB.*/
:BUS1:SPI:ENDian? /*The query returns LSB.*/
:BUS<n>:SPI:MODE
Syntax :BUS<n>:SPI:MODE <mode>
:BUS<n>:SPI:MODE?
Description
Sets or queries the decode mode of SPI decoding.
Parameter
Name Type Range Default
<n>
Discrete
{1|2|3|4}
——
<mode>
Discrete
{CS|TIMeout}
TIMeout
Remarks  CS: indicates chip select. CS: contains a chip select line (CS). You can perform
frame synchronization according to CS.
 TIMeout: indicates timed out. You can perform frame synchronization according to
the timeout. At this time, you can send the
:BUS<n>:SPI:TIMeout:TIME
command to set the timeout value.
Return
Format
The query returns CS or TIM.
Example
:BUS1:SPI:MODE CS /*Sets the decode mode of SPI decoding to CS.*/
:BUS1:SPI:MODE? /*The query returns CS.*/
:BUS<n>:SPI:TIMeout:TIME
Syntax :BUS<n>:SPI:TIMeout:TIME <time>
:BUS<n>:SPI:TIMeout:TIME?
Description
Sets or queries the timeout value of SPI decoding. The default unit is s.
Parameter
Name
Type
Range
Default
<n>
Discrete
{1|2|3|4}
——
<time>
Real
8 ns to 10 s
1 μs
Remarks  The timeout must be greater than the maximum clock pulse width and less than
the idle time between frames.
 This setting command is only valid in timeout mode.
Return
Format
The query returns the timeout value in scientific notation.
Example
:BUS1:SPI:TIMeout:TIME 0.000005 /*Sets the timeout value to 5 μs.*/
:BUS1:SPI:TIMeout:TIME? /*The query returns 5.000000E-6.*/