PAC1934 Evaluation Board (ADM00805) User’s Guide
DS50002673A-page 20
2017 Microchip Technology Inc.
3.2
TOP MENU
As seen in
Figure 3-1
, the
Device
window (1) shows the device on the board and its
I
2
C address; some parts have a serial number that is displayed.
When clicked, the
Settings
button (3) displays a drop-down menu with two options:
Set
Constants
and
Slow Register
, as shown in
Figure 3-3
.
Note that you need to stop the acquisition process in order to have access to the
Slow
Register.
It is recommended that the acquisition process is stopped before changing
the values in the Set Constants Menu. Any changes to these values do not take effect
until the start of the acquisition.
FIGURE 3-3:
SETTINGS DROP-DOWN MENU
The Set Constants option opens the Sense Resistor Values dialog box when clicked,
displayed in
Figure 3-4
. The default values shown are the sense resistor values in
DEMO mode. Enter a new value in ohms if the SYSTEM/SHUNT mode is used or if a
different value of sense resistor is used (see
Section 3.3 “PAC Settings section”
).
FIGURE 3-4:
SENSE RESISTOR VALUES DIALOG BOX
Selecting the Slow Register option opens the Refresh Commands dialog box, displayed in
Figure 3-5
, which allows the user to select which type of refresh commands, if any, occur
on the rising and falling edge of the SLOW pin transitions. Select the desired options and
the GUI programs the Slow Register (0x20) in the PAC1934 appropriately (see the
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