Datasheet

NXP Semiconductors
UM10973
LPCXpresso51U68
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in the section 'Legal information'.
© NXP Semiconductors N.V. 2018 All rights reserved.
For more information, please visit: http://www.nxp.com
Date of release: April 27, 2018
Document identifier: UM11121
13. Contents
1. Introduction ......................................................... 3
2. Feature summary ................................................ 4
2.1 Board layout and settings ................................... 4
3. Getting Started .................................................... 8
3.1 Starting a debug session using the on-board
(Link2) Debug Probe .......................................... 8
Installation steps for use with MCUXpresso IDE 8
Installation steps to use Keil and IAR tools ........ 9
3.2 Starting a debug session using an external
Debug Probe .................................................... 10
4. LPC51U68 Serial ports ...................................... 10
4.1 P3 FTDI header ................................................ 10
5. Board power connections and measurement . 11
5.1 LPCXpresso51U68 current measurement........ 12
LPC51U68 Vsense resistor current
measurement ................................................... 13
LPC51U68 VDD current measurement using a
current meter .................................................... 13
LPC51U68 VDD current measurement ............ 13
Shield board current measurement .................. 14
6. Debug Configurations ....................................... 14
Debugging LPC51U68 target using on-board
(Link2) debug probe ......................................... 15
Debug LPC51U68 target using external debug
probe ................................................................ 15
On-board Link2 flash programing ..................... 15
6.2 Using on-board Link2 to debug an off-board
target LPC MCU ............................................... 15
7. LED indicators ................................................... 16
8. Expansion connectors ...................................... 16
9. Buttons ............................................................... 17
9.1 Reset ................................................................ 17
9.2 ISP0 and ISP1 .................................................. 17
9.3 WAKE .............................................................. 18
10. Legal information .............................................. 19
10.1 Disclaimers ....................................................... 19
10.2 Trademarks ...................................................... 19
11. List of figures ..................................................... 20
12. List of tables ...................................................... 21
13. Contents ............................................................. 22