NXP Semiconductors LPCXpresso54102, User Manual, Page: 12 / 20

NXP Semiconductors
UM10855
LPCXpresso board for LPC54100 family of MCUs
UM10855_OM1377.docm All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved.
User manual Rev. 1.0
— 4th November 2014
12 of 19
Figure 7
– Debug local LPC54102 target from on-board debug probe
6.1.2 Debug on-board LPC54102 target using external debug probe
To use an external debug probe, connect the probe to the SWD (P1) connector, power
the LPC54102 Target section of the board from the Target power only micro USB
connector J4, and fit a jumper to JP2 across pin 1 - 2 (
Loc al Target), as shown in Figure
8 . Jumper JP1 must be open to enable the target LPC54102. The on-board Link debug
probe must be unpowered, by leaving J6 unconnected.
Figure 8 - Debug local LPC54102 target using external probe
6.1.3 On-board Link2 flash programing
To program the Link2 Flash the Link2 MCU must be in DFU mode. If the Link2 already
has a valid image in the flash, you will need to force it into DFU mode by placing a
jumper shunt on JP5, then power the board by connecting the micro USB J6 to a host
computer, as shown in Figure 9
. Link2 MCU programming is performed using DFUSec
tool found on http://www.lpcware.com/content/project/dfu-download-programming-utility-
and-security-lpcdfusec-tool . Instructions for using the tool are located at the same web
page.