R&S RTO6, Руководство пользователя

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Protocol analysis
R&S
®
RTO6
498 User Manual 1801.6687.02 ─ 05
Threshold
Sets the threshold value for digitization of signals for each line. If the signal value on
the line is higher than the threshold, the signal state is high (1 or true for the Boolean
logic). Otherwise, the signal state is considered low (0 or false) if the signal value is
below the threshold.
There are several ways to set the threshold:
●
"Threshold"
Enter the value directly in the field.
●
"Autoset"
Starts software algorithms for determining the signal threshold levels and bitrate.
●
"Find thresholds"
Executes the measurement of reference levels and sets the thresholds to the mid-
dle reference level of the measured amplitude.
Note: If the sources are digital channels, the same threshold values are used for the
parallel and the serial buses. You can set the thresholds either in the parallel bus con-
figuration or in the serial bus configuration.
Remote command:
BUS<m>:I2C:SCL:THReshold
on page 1677
BUS<m>:I2C:SDA:THReshold
on page 1677
BUS<m>:I2C:TECHnology
on page 1677
BUS<m>:SETReflevels
on page 1671
BUS<m>:FAUToset
on page 1671
Show thresholds
If enabled, the threshold levels are displayed in the diagram.
Remote command:
BUS<m>:THReshold
on page 1671
13.2.2.2 Display settings
Access: [Bus] > "Display" tab.
For common display settings, see Chapter 13.1.3, "Display" , on page 487.
I2C Specific Label Settings
Label lists are protocol-specific. Label lists for I 2 C are available in CSV and PTT for-
mat.
An I 2 C label file contains three values for each address:
●
Address type, 7-bit or 10-bit long
●
Address value
●
Symbolic label: name of the address, specifying its function in the bus network.
Example: I
2
C PTT file
# ----------------------------------------------------------------------------
@FILE_VERSION = 1.00
@PROTOCOL_NAME = i2c
I²C (option R&S RTO6-K510)