NXP Semiconductors
UM10855
LPCXpresso board for LPC54100 family of MCUs
UM10855_OM1377.docm
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User manual
Rev. 1.0
— 4th November 2014
14 of 19
D1
D2
D3
D4
Figure 11
– LPCXpresso54102 LQFP board LED Indicators
Table 3 - Board LED indicators
LED reference
Description
D1
Link2 Debug Probe BOOT0_LED indicator. Driven by P1_1 of the
LPC43xx. This LED will remain unlit when using the CMSIS-DAP
firmware image (normal boot). When using LPCXpresso with the
board configured for DFU boot, this LED will flash during debug
operations.
D2
Tri-color LED
– Driven by Target LPC54102 MCU. The red led is
driven by P0_29. The green led is driven by P0_30. The blue led is
driven by P0_31. LEDs are on when the LPC54102 port is output
low. To light any of the tri-color leds, JP6 must have a shunt between
pins 1
– 2. By default the 0Ω resistor at JS17 provides the shunt for
JP6. To measure the lowest possible current from LPC54102
remove the 0Ω resistor at JS17 (3.3V from led common
anode).
D3
Target LPC54102 power LED. This LED is on any time power is
applied to the Target LPC54102 MCU. LED will have a brighter
intensity when the LPC54102 is powered from +3.3V than when
powered by +1.8V.
D4
Target Reset LED. This LED is on anytime the Target RESETn is
pulled low.
8. Expansion connectors
The LPCXpresso54102 board includes four expansion
connectors plus a PMod™
compatible connector (J3). The expansion connectors (J1, J2, J7 and J8) incorporate an
Arduino Uno revision 3 footprint in their inner rows. Not all connector locations are
populated on the expansion connectors since the LPC54102 does not have enough I/O