UM11082
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© NXP B.V. 2018. All rights reserved.
User Manual
Rev. 1.1 — 12 January 2018
4 of 18
NXP Semiconductors
LPC8N04 Development Board
User Manual
•
Pre-programmed with demo message scrolling / tune playing application (requires
NFC-enabled phone to use; iOS 11 phones only support limited functionality)
The Board is divided into two parts - the Debug Probe (DP) and Main Processor (MP)
Sections. The two sections may be snapped apart by scoring the row of holes between
them using a knife, then applying firm pressure to this region of the board. Once
separated, the MP board may be used as a standalone target, either powered via a button
cell or via the P4 expansion connector. The boards can be reconnected by soldering 0.1”
pitch right angled connectors(not supplied) in the P3/P4 and P5/P6 header locations.
2. Board
Layout
Figure 2
below shows the layout of the LPC8N04 Development Board board, indicating
location of jumpers, buttons and connectors/expansion options.
Table 1
below shows the layout of the LPC8N04 Development Board board, indicating
location of jumpers, buttons, connectors/expansion options and MCU devices.
Fig 2.
Board layout (top silkscreen)
SWD/LED jumpers
(P8/P7)
SPKR/LED
jumper (P9)
External debug probe
Connector (J1)
Debug probe
disable
(P1)
Debug probe
firmware
update (P2)
USB
connector
Target
Reset
Button
(S3)
Target
Power
Switch
(S1)
User
Button
(S2)
Table 1.
Jumpers and connectors
Circuit reference
Description
Reference section
P1
Inserting a jumper on P1 holds the LPC11U35 debug probe in reset.
Install P1 when using an external debug probe.
[4.1]
P2
Inserting a jumper on P2 forces the LPC11U35 debug probe into Device
Firmware Update (DFU) mode when the board is power cycled, allowing
its on-board firmware to be updated.
[4.1]
P3, P4, P5, P6
These connectors provide access to the PIO lines of the LPC8N04, plus
power and reset.
[5.1]
P7, P8
PIO0_11 and PIO0_10 from the LPC8N04 can be used as SWD pins or
GPIOs. P7 (for PIO0_11) and P8 (for PIO0_10) are used to determine
whether those signals are routed to the SWD header and LPC11U35
debug probe, or to the 3rd and 4th columns of the LED array.
[4]
,
[7.2]
P9
P9 is use to selected whether PIO0_3 from the LPC8N04 is routed to the
speaker amplifier input of row 6 of the LED array.
[7.2]
,
[7.3]
