B&B Electronics WLNN-AN(ER,SE,SP.EK)-DP551 - Manual - Manual (Page 164)

164 Airborne Enterprise CLI Reference Manual
io-read
Command io-read
Arguments f<port number> | g<port number>
Security
Level
2 (data)
Device Type All
Default N/A
Description Reads the value of the indicated GPIO port and bit. This command is applied dynamically and does not
require a restart.
The command requires a single parameter that identifies the GPIO port and bit to be read, for
example:
io-read f1 : Reads the value of the f port first bit.
io-read g7 : Reads the value of the g port seventh bit.
The returned value will be a zero (0) or one (1) based upon the voltage applied to the input. Please
refer to the Airborne DP500 Family data book for the GPIO electrical specification.
Port assignment and exceptions:
f0 Read (POST output) g0 Read or Write
f1 Read or Write g1 Read or Write
f2 Read (RF_LINK output) g2 Read or Write
f3 Read (WLN_CFG output) g3 N/A
f4 Read or Write g4 N/A
f5 Read or Write g5 N/A
f6 Read (LED_CON output) g6 Read or Write
f7 Read or Write g7 Read or Write
When the LED signal has not been disabled those bits indicated as LED Outputs can only be read.
Issuing an io-read for any of these ports will return the current status of the LED output (See WLNN
DP500 Family Databook for details). To disable the LED‟s use one of the following commands post-
led
, rf-link-led, wln-cfg-led and conn-led.