RIGOL
2-36
DS4000E Programming Guide
Parameter
Name
Type
Range
Default
<n>
Discrete
{1|2}
--
<thre>
Real
(-4 x VerticalScale - Offset) to (4 x VerticalScale - Offset)
Wherein, VerticalScale is the vertical scale of the source
channel, refer to the :CHANnel<n>:SCALe command;
Offset is the vertical position of the source channel, refer
to the :CHANnel<n>:OFFSet command.
0
Return Format
The query returns the threshold level in scientific notation.
:BUS<n>:SPI:SS:POLarity
Syntax
:BUS<n>:SPI:SS:POLarity <pol>
:BUS<n>:SPI:SS:POLarity?
Description
Sets or queries the polarity of CS line of SPI decoding on the specified bus.
Parameter
Name
Type
Range
Default
<n>
Discrete
{1|2}
--
<pol>
Discrete
{HIGH|LOW}
LOW
Remarks
HIGH: indicates that the oscilloscope samples data of the source channel of data line on the specified
edge of the clock signal when the CS signal is high level.
LOW: indicates that the oscilloscope samples data of the source channel of data line on the specified
edge of the clock signal when the CS signal is low level.
Return Format
The query returns HIGH or LOW.
:BUS<n>:SPI:SS:SOURce
Syntax
:BUS<n>:SPI:SS:SOURce <source>
:BUS<n>:SPI:SS:SOURce?
Description
Sets or queries the source channel of the CS line of SPI decoding on the specified bus.
Parameter
Name
Type
Range
Default
<n>
Discrete
{1|2}
--
<source>
Discrete
{CHANnel1|CHANnel2|CHANnel3|CHANnel4}
CHANnel2
Return Format
The query returns CHAN1, CHAN2, CHAN3, or CHAN4.
