MDO3000 Programmer Manual.pdf - 第232页

Commands Listed in A lphabetical Order HIGH indicates the bit rate is 480 Mbps. Examples BUS:B1:USB:BI TRATE FULL sets the bit rate to 12 Mbps. BUS:B1:USB:BI TRATE? might return :BUS:B1:USB:BIT RATE LOW ,w h i c h indica…

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Commands Listed in Alphabetical Order
Group
Bus
Syntax
BUS:B<x>:TYPe
{I2C|SPI|CAN|RS232C|PARallel|USB|LIN|FLEXRay|AUDio|ETHERnet|
MIL1553B|ARINC429A}
BUS:B<x>:TYPe?
Arguments
I2C specifies the Inter-IC bus.
SPI specifies the Serial Peripheral Interface bus (not available on two-channel
models).
CAN specifies the Controller Area Network bus.
RS232C specifies the RS-232C bus.
PARallel specifies the Parallel bus.
USB specifies the USB bus.
LIN specifies the LIN bus.
FLEXRay specifies the FLexRay bus.
AUDio specifies the audio bus.
ETHERnet specifies the Ethernet bus.
MIL1553B specifies the MIL-STD-1553 bus.
ARINC429A specifies the Aeronautical Radio INC (specification 429) bus.
BUS:B<x>:USB:BITRate
This command specifies the bit rate for the USB bus.
Conditions
This command requires a DPO4USB application module for 4000 series models,
and an MDO3USB application module for MDO3000 series models.
Group
Bus
Syntax
BUS:B<x>:USB:BITRate {LOW|FULL|HIGH}
BUS:B<x>:USB:BITRate?
Arguments
LOW indicates the bit rate is 1.5 Mbps.
FULL indicates the bit rate is 12 Mbps.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-201
Commands Listed in Alphabetical Order
HIGH indicates
the bit rate is 480 Mbps.
Examples
BUS:B1:USB:BITRATE FULL sets the bit rate to 12 Mbps.
BUS:B1:USB:BITRATE? might return :BUS:B1:USB:BITRATE LOW,which
indicates that the bit rate is 1.5 Mbps.
BUS:B<x>:USB:PRObe
This command specifies the type of probe connected to the USB bus.
Conditions
This command requires a DPO4USB application module for 4000 series models,
and an MDO3USB application module for MDO3000 series models.
Group
Bus
Syntax
BUS:B<x>:USB:PRObe {DIFFerential|SINGleended}
BUS:B<x>:USB:PRObe?
Arguments
DIFFerential indicates the bus probe is a differential probe.
SINGleended indicates the bus probe is not a differential probe.
Examples
BUS:B1:USB:PROBE DIFFERENTIAL sets the bus probe to differential.
BUS:B1:USB:PROBE? might return :BUS:B1:USB:PROBE SINGLEENDED,
which indicates that the bus probe is not a differential probe.
BUS:B<x>:USB:SOUrce:DIFFerential
This command specifies the source waveform for the USB bus when using a
differential probe.
Conditions
This command requires a DPO4USB application module for 4000 series models,
and a
n MDO3USB application module for MDO3000 series models.
Group
Bus
2-202 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Syntax
BUS:B<x>:USB:
SOUrce:DIFFerential
{CH1|CH2|CH3|CH4|MATH|REF1|REF2|REF3|REF4}
BUS:B<x>:USB
:SOUrce:DIFFerential?
Arguments
CH1–4 specifies an analog waveform as the source. This channel should have
an attached differential probe.
MATH specifies the math waveform as the source.
REF1–4 specifies a reference waveform as the source.
Examples
BUS:B1:USB:SOURCE:DIFFERENTIAL CH2 sets the source to channel 2. You
should have a differential probe attached to channel 2 and connect it to the USB
data signal.
BUS:B1:USB:SOURCE:DIFFERENTIAL? might return
:BUS:B1:USB:SOURCE:DIFFERENTIAL CH4 indicating that channel 4 is
the source.
BUS:B<x>:USB:SOUrce:DMINus
This command specifies the source for the USB bus D- input. If you are using
single-ended probes, you need to set the sources for both the D+ and D- inputs.
Conditions
This command requires a DPO4USB application module for 4000 series models,
and an MDO3USB application module for MDO3000 series models.
Group
Bus
Syntax
BUS:B<x>:USB:SOUrce:DMINus
{CH1|CH2|CH3|CH4|D0|D1|D2|D3|D4|D5|D6|D7|D8
|D9|D10|D11|D12|D13|D14|D15}
BUS:B<x>:USB:SOUrce:DMINus?
Arguments
CH1–CH4 specifies an analog channel as the source waveform for the D- input.
D0-D15 specifies a digital channel as the source waveform for the D- input.
(MSO/MDO4000/B models only as well as MDO3000 and MDO400C models
with option MDO3MSO or MDO4MSO installed.)
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-203