Jumpers
2-26
ADSP-BF526 EZ-Board Evaluation System Manual
for more information about the power saving capabilities of the
EZ-Board. By default,
P21—22
are installed.
R274 JMP Jumper (P23)
The R274 JMP jumper (
P23
) provides a means to short out a R274 set
resistor in the charge rate circuit of the ADP2291 single cell lithium ion
battery.
P23
bypasses R274 when installed and effectively makes a
zero ohm connection to the
WALL_SENSE
signal. For more information on
the ADP2291 battery charger, see
“Power Architecture” on page 1-30
P23
is used in conjunction with the
JP17
and
JP15
jumpers; see the following
sections for more information:
“CHG Control Jumper (JP17)” on
,
“CHG GPIO Jumper (JP15)” on page 2-23
P23
is uninstalled.
BATT Installed Jumper (P25)
The BATT installed jumper (
P25
) serves as an indication to the BQ27500
fuel gauge that a lithium ion battery is installed. When using the battery,
install a jumper on
P25
before turning
ON
the battery’s power switch
(
SW22
). By default,
P25
is uninstalled.
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