UM11158
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© NXP B.V. 2018. All rights reserved.
User manual
Rev. 0.2 — 16 October 2018
9 of 20
NXP Semiconductors
UM11158
LPCXpresso55S69 Development Board
3. Getting
started
NOTE: Pre-production boards released are not set up with final out-of-box demo
code, and debug probes listed may not yet support this product. The J-link version
for Link2 to support this product is not yet available
.
This section describes how to first power up the board and then how to start a first debug
session using the MCUXpresso SDK. The board is pre-programmed with a simple
program indicating that the target MCU is running. Connect a micro USB cable from
connector P5 to a host computer or power supply to power-up the board and run this
program.
The following debug probes can be used with those development and the board (check
compatibility between debug probe and IDE used, including support for Arm Cortex M33
cores):
•
On-board debug probe (LPC4322 “Link2”)
•
LPC-Link2 (OM13054) debug probe from NXP or Embedded Artists
P21
SD card slot
8-bit, full size card slot connected to the LPC55S69 SD0 interface.
Supports 3.3V operation only.
n/a
P23, P24
Mikroe Click site
Provides connectivity to standard Mikroe Click connectors. Shares SPI,
ADC, I2C and USART connections with the P16-P19 expansion
connectors.
n/a
P25
A header may be added at P25 to provide a convenient way to
enable/disable the on-board accelerometer. If this header is used,
remove the zero ohm resistor R20, which is in parallel with this header.
Not installed
P28
ADC0 differential input connector. This header provides access to the
ADC0 negative and positive inputs, plus a ground pin.
n/a
S1
ISP/User button
When pressed, this button connect sport pin P0_5 to ground. Hold this
button down while pressing and releasing Reset (S4) to force the
LPC55S69 into ISP mode. Port P0_5 may also be reconfigured as a
GPIO in user application code to enable this button to be used for other,
user-defined purposes. A 2.2k ohm pull up is used to pull P0_5 high
when the button is not pressed.
n/a
S2
Wake/User button
This button, when pressed, pulls P1_18 to ground. A 100K ohm pull up
to VDD is connected to P1_18.
S3
User button
This button, when pressed, pulls P1_9 to ground. A 100K ohm pull up
to VDD is connected to P1_9, and this port is also connected to pin 1 of
expansion connector P18.
S4
Reset button
When pressed, reset is applied to the LPC55S69, expansion connector
(Arduino reset) P16, the Mikroe Click site reset, and U14 (debug
connector P7 reset when debugging an off-board target).
Table 1.
Indicators, buttons, connectors and LEDs
Circuit
reference
Description
Default
Reference
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