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2.5 LEDs
The NXHX 51­ETM is equipped with the following LEDs:
No. in
device
drawing LED naming in
device drawing LED function Color Signal name
(18) V1
(yellow / green)
SYS
System Status
(green)
RUN#
(yellow)
RDY#
(3) V30
(red / green)
COM0
Communication
status
(green)
MMIO28
(red)
MMIO29
(4) V31
(red / green)
COM1
Communication
status
(green)
MMIO30
(red)
MMIO31
(12)
V12 (yellow)
General output
(yellow)
MMIO24
(11)
V13 (yellow)
General output
(yellow)
MMIO25
(10)
V14 (yellow)
General output
(yellow)
MMIO26
(9)
V15 (yellow)
General output
(yellow)
MMIO27
Table 33: LEDs on the NXHX 51­ETM
The meaning of the COM LEDs (V30 and V31) depends on the
communication protocol used on the NXHX 51­ETM board.
LED SYS (V1)
The subsequent table describes the meaning of the system LED.
LED Color State Meaning
SYS Duo LED yellow/green
(green)
On Operating System running
(green /
yellow)
Blinking
green /
yellow Second stage bootloader is waiting for firmware
(yellow)
Static Bootloader netX (= romloader) is waiting for second
stage bootloader
(off)
Off Power supply for the device is missing or hardware
defect.
Table 34: System Status LED
Position (18) in section Printed circuit board [
}
page 11].
NXHX 51­ETM | Development Board
DOC120606HW06EN | Revision 6 | English | 2015­01 | Released | Public © Hilscher 2012 – 2015