12-46
IM DLM4038-02EN
Setting the Serial Bus (Setup)
Note
Using the CH8 Terminal and LOGIC(L) Port
When you perform an analysis or execute a search, you cannot use the CH8 terminal and LOGIC(L) port as
the source at the same time. Specify the source that you want to use in advance by pressing either the CH8
key or the L key.
Press the Setup soft key to display the following menu.
Auto Setup (Auto Setup)
Executes auto setup
• Source bit
(L0 to L7,
A0 to A7,
B0 to B7)*
• Source bit
(L0 to L7,
A0 to A7,
B0 to B7)*
Stop auto setup.
Set the SDA
source bit.
Set the SCL
source bit.
Set the SCL source
(CH1 to CH8/LOGIC(L),
LOGIC(A|B)).*
Set the SDA source
(CH1 to CH8/LOGIC(L),
LOGIC(A|B)).*
When the SCL Source Is
LOGIC(L) or LOGIC(A|B)
When the SDA Source Is
LOGIC(L) or LOGIC(A|B)
1.
Set the SCL and SDA sources.
The range within which the SDA source can be set changes depending on the SCL source as
indicated below.
SCL Source SDA Source
CH1 to CH4 CH1 to CH4
CH5 to CH8/LOGIC(L)
*
CH5 to CH8/LOGIC(L)
*
LOGIC(A|B)
*
LOGIC(A|B)
*
If you select LOGIC(L) or LOGIC(A|B), set the source bit (L0 to L7, A0 to A7, B0 to B7).
*
* You can select CH8 or LOGIC(L), depending on which channel’s corresponding key (CH8 or L) is
illuminated. LOGIC(A|B), A0 to A7, and B0 to B7 are available on models with the /L16 option.
You cannot use auto setup under the following circumstances.
• When the SCL or SDA source is set to Math1 to Math4
• When state display is applied to a LOGIC bit that is set as the SCL or SDA source
2.
Press the Auto Setup soft key.
The DLM4000 will automatically configure the serial bus settings.
The DLM4000 automatically configures the level and hysteresis and triggers on the start condition of the
I
2
C bus signal.
While the serial bus is being configured, Auto Setup changes to Abort. If you want to stop serial bus
configuration, press the Abort soft key.
The auto setup feature will not work properly on some input signals.
12.9 Analyzing and Searching I2C Bus Signals (Option)
To Next Page
Loading...
Need help?
General
