Jupiter Instruments
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JI-300
13
9/9/07
4. MAIN WINDOW AND MENU DESCRIPTIONS
4.1 Main Window
The I2C Host Adapter
Main Window
is shown in Figure 7.
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Figure 7. I2C Host Adapter Main Window
1.
Message List
– I2C messages are stored here. Messages are added via the
Add Message
button. To
Insert
,
Edit
, or
Delete
an existing message, double-click the message number.
2.
Run/Stop
– These buttons control the transmission of I2C messages. The
Run
button
initiates a session where by I2C messages stored in the message list are squelchy
executed. The session starts at the cursor position and ends either by the execution of the
lasted message in the list or by clicking the
Stop
button.
3.
Single Step
– This button is used to transmit a single I2C message.
4.
Progress
– Status of the current session is displayed here.
5.
Reset Que
– Clicking this button moves the cursor to the first message in the message list.
6.
Message List Looping
– This group provides control and monitoring of the message list
looping function. When
Enabled
, a session will cyclically execute all I2C messages stored in
the message list when a session is started. A
Clear Data & Status
check box provides the
option of clearing both Data and Status columns at the beginning of each loop pass.
7.
200mS Message Delay
–
This function, when
Enabled
, inserts a small delay (approx.
200ms) between each message transmission.
8.
I2C Bus State –
The present state of the SCL and SDA signals is displayed here.
9.
External Bus Voltage
– Control (On/Off) of the external bus voltage (Vbus) is performed
here.