Reference Manual

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www.ConnectCore 9M 2443 & Wi-9M 2443 Hardware Reference.com 74
User LEDs, LE5
and LE6
The user LEDs are controlled through applications running on the modules if J6 and
J8 are set. Use these module signals to implement LEDs:
Serial status
LEDs
The development board has two sets of serial port LEDs - eight for serial port A and
eight for serial port B. The LEDs are connected to the TTL side of the RS232 or
RS422/485 transceivers.
 Green means corresponding signal is high
 Red means corresponding signal is low
Signal name LED GPIO used
USER_LED1# LE5 GPL11
USER_LED2# LED6 GPL10
Serial port A
(R232), X27
Serial port B,
(MEI), X16
Serial port C,
TTL, X19
Serial port D,
TTL, X22