Leds And Push Buttons - Analog Devices EZ-Board ADSP-BF518F Manual

LEDs and Push Buttons

The EZ-Board provides two push buttons and three LEDs for gen-
eral-purpose I/O, as well as two additional push buttons intended for
power down and wake functionality, which also can be used as GPIO flag
pins.
The three LEDs, labeled
and pins of the processor (respectively). For information on how to
PH6
program the flag pins, refer to the ADSP-BF51x Blackfin Processor Hard-
ware Reference.
is shared with the
LED1
with the and
CDG
signals.
The signals also connect to the expansion interface II connectors.
LED1—3
See "Expansion Interface II Connector (J1)" on page 2-25
Interface II Connectors (P2 and P4)" on page 2-27
The two general-purpose push buttons are labeled
of each individual button can be read through programmable flag inputs
and . The flag reads '
PH0 PH1
pressed. When the switch is released, the flag reads '
between the push buttons and processor inputs is established through
positions 1&2 of the DIP switch
Push buttons 1 and 2 of
interface II connectors (
GPIO signals on the expansion interface II, turn
is shared with the
PB1
and
RFS1 MMC_D5
An example program is included in the ADSP-BF518F installation direc-
tory to demonstrate functionality of the LEDs and push buttons.
ADSP-BF518F EZ-Board Evaluation System Manual
through
LED1
,
ADC_A0 MMC_D7
signals.
ADC_A1 LED3
' when a corresponding switch is being
1
SW2
are used as GPIO signals on the expansion
SW2
, , ). To use the
J1 P2 P4
and
DR1PRI MMC_D4
signals.
Using ADSP-BF518F EZ-Board
, are accessed via the
LED3
, and signals.
OTP_EN
is shared with the
for more information.
and
PB1
'. A connection
0
.
and
PH0
to all
SW2
signals. is shared with the
PB2
, ,
PH3 PH5
is shared
LED2
and
CZM ADC_A2
and "Expansion
. The status
PB2
port pins as
PH1
.
OFF
1-21