Jupiter Instruments
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10.
USB Port
–
Open
/
Close
USB port from this area.
11.
Message List
--
a.
Add Message
– Clicking this button will either add a Read or Write message to the
Message List. Messages will be appended to the bottom of the list.
b.
Clear Data
– Clicking this button will remove all read data from the Message List.
c.
Clear Status
– Clicking this button will remove all status comments from the
Message List.
d.
Clear Message List
– Clicking this button will remove all messages from the
Message List
4.2 Setup Menu
The
Setup Menu
provides a convenient means of configuring and maintaining an I2C hardware
setup (See Figure 8.)
3
4
5
6
7
1
2
Figure 8. Setup Menu
1.
SCL Frequency
– Two methods are provided to configure the SCL Clock:
Standard
and
Advanced
. When selecting
Standard
, Frequency and Duty cycle data is entered and the
tHIGH, tSU,DAT, and tHD,DAT values that comprise the SCL waveform are automatically
calculated and loaded. Note that tSU,DAT, and tHD,DA values are held nearly equal (+/- 1
bit). If a unique SCL waveform is desired, the
Advanced
mode is selected. In this mode
tHIGH, tSU,DAT, and tHD,DAT data is entered directly. The resultant SCL frequency and
tLOW value is then calculated and displayed.
2.
Bus Voltage and Pull-ups
– The I2C Bus voltage and SDA/SCL pull-up resistor values are
entered here.
3.
Multi-master Mode
– JI-300 multi-master mode is enabled/disabled here.
JI-300
14
9/9/07
