Tektronix MSO54, Programmer'S Manual

Page: 185 / 1026

Commands listed in alphabetical order
Conditions Requires option SR-COMP.
Group Bus
Syntax
BUS:B<x>:RS232C:SOUrce:THReshold <NR3>
BUS:B<x>:RS232C:SOUrce:THReshold?
Arguments
<NR3>
is the RS-232C source threshold for the speci fi ed bus.
Examples
BUS:B1:RS232C:SOURCE:THRESHOLD 50.0e-3
sets the threshold to 50 mV.
BUS:B1:RS232C:SOURCE:THRESHOLD?
might return
:BUS:B1:RS232C:SOURCE:THRESHOLD 0.0E+0
indicating the threshold
is set to 0.0 V.
BUS:B<x>:SPI:BITOrder
This command sets or queries the SPI bit order for the speci fi ed bus. The bus
is speci fi ed by x.
Conditions
Requires option SR-EMBD.
Group
Bus
Syntax
BUS:B<x>:SPI:BITOrder {LSB|MSB}
BUS:B<x>:SPI:BITOrder?
Related Commands BUS:B<x>:SPI:DATa:SIZe
Arguments
LSB
speci fi es that each bit becomes the recovered value's new LSB, after shifting
previously recovered bits one place to the left. The decoding happens right to left.
MSB
speci fi es that each successive bit from the bus's data line becomes the new
MSB of the recovered value, shifting any previously recovered bits one place to
the right. The decoding happens left to right.
Examples
BUS:B1:SPI:BITORDER LSB
sets each bit order for the SPI bus B1 to LSB.
BUS:B1:SPI:BITORDER?
might return
:BUS:B1:SPI:BITORDER MSB
,
indicating that the bit order for the SPI bus B1 is set to MSB.
MSO54, MSO56, MSO58, MSO58LP Programmer 2-169