LPCXpresso55S36

Overview

The LPCXpresso55S36 board provides the ideal platform for evaluation of the LPC55S3x/LPC553x MCU family, based on the Arm® Cortex®-M33 architecture. Arduino® UNO compatible shield connectors are included, with additional expansion ports around the Arduino footprint, along with a PMod/host interface port and MikroElektronika Click module site.

Hardware

LPC55S36 Arm® Cortex®-M33 microcontroller running at up to 150 MHz
256 KB flash and 112 KB SRAM on-chip
LPC-Link2 debug high speed USB probe with VCOM port
I2C and SPI USB bridging to the LPC device via LPC-Link2 probe
MikroElektronika Click expansion option
LPCXpresso expansion connectors compatible with Arduino UNO
PMod compatible expansion / host connector
Reset, ISP, wake, and user buttons for easy testing of software functionality
Tri-color LED
Full-speed USB device / host port
High-speed USB device / host port
UART header for external serial to USB cable
CAN Transceiver
Stereo audio codec with in/out line

For more information about the LPC55S36 SoC and LPCXPresso55S36 board, see:

Supported Features

NXP considers the LPCXpresso55S36 as a superset board for the LPC55(S)3x family of MCUs. This board is a focus for NXP’s Full Platform Support for Zephyr, to better enable the entire LPC55(S)3x family. NXP prioritizes enabling this board with new support for Zephyr features. Another similar superset board is the LPCXPRESSO55S69, and that board may have additional features already supported, which can also be re-used on this lpcxpresso55s36 board.

The lpcxpresso55s36 board supports the hardware features listed below.

on-chip / on-board: Feature integrated in the SoC / present on the board.
2 / 2: Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo: Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

lpcxpresso55s36

/

lpc55s36

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M33F CPU1	`arm,cortex-m33f`
ADC	on-chip	LPC LPADC1	`nxp,lpc-lpadc`
ARM architecture	on-chip	LPC Flexcomm node7	`nxp,lpc-flexcomm`
CAN	on-chip	NXP LPC SoC series MCAN CAN FD controller1	`nxp,lpc-mcan`
Clock control	on-chip	LPC SYSCON & CLKCTL IP node1	`nxp,lpc-syscon`
DAC	on-chip	NXP MCUX LPDAC1 2	`nxp,lpdac`
DMA	on-chip	NXP LPC DMA controller1 1	`nxp,lpc-dma`
Flash controller	on-chip	NXP (In-Application Programming) flash memory controller for the lpc553x family1	`nxp,iap-fmc553`
GPIO & Headers	on-chip	LPC GPIO1	`nxp,lpc-gpio`
	on-chip	LPC GPIO port device3	`nxp,lpc-gpio-port`
	on-board	GPIO pins exposed on Mikro BUS headers1	`mikro-bus`
	on-board	GPIO pins exposed on Arduino Uno (R3) headers1	`arduino-header-r3`
Input	on-board	Group of GPIO-bound input keys1	`gpio-keys`
Interrupt controller	on-chip	NXP Pin interrupt and pattern match engine (PINT)1	`nxp,pint`
Interrupt controller	on-chip	ARMv8-M NVIC (Nested Vectored Interrupt Controller)1	`arm,v8m-nvic`
LED	on-board	Group of GPIO-controlled LEDs1	`gpio-leds`
MMU / MPU	on-chip	ARMv8-M MPU (Memory Protection Unit)1	`arm,armv8m-mpu`
MTD	on-chip	Flash node2 1	`soc-nv-flash`
MTD	on-board	Fixed partitions of a flash (or other non-volatile storage) memory1	`fixed-partitions`
Pin control	on-chip	LPC I/O Pin Configuration (IOCON)1	`nxp,lpc-iocon`
Pin control	on-chip	LPC pinctrl node1	`nxp,lpc-iocon-pinctrl`
PWM	on-chip	NXP eFLEX PWM module with mcux-pwm submodules2	`nxp,flexpwm`
	on-chip	NXP MCUX PWM1 7	`nxp,imx-pwm`
	on-chip	NXP SCTimer PWM1	`nxp,sctimer-pwm`
Regulator	on-chip	NXP VREF SOC peripheral1	`nxp,vref`
Reset controller	on-chip	LPC SYSCON Peripheral reset controller1	`nxp,lpc-syscon-reset`
Serial controller	on-chip	LPC USART1	`nxp,lpc-usart`
SPI	on-chip	NXP LPC SPI controller1	`nxp,lpc-spi`
SRAM	on-chip	Generic on-chip SRAM description5	`mmio-sram`
Timer	on-chip	ARMv8-M System Tick1	`arm,armv8m-systick`
USB	on-chip	NXP LPCIP3511 USB device mode1	`nxp,lpcip3511`

Connections and IOs

The LPC55S36 SoC has IOCON registers, which can be used to configure the functionality of a pin.

Name	Function	Usage
PIO0_17	GPIO	USR SW3
PIO0_22	GPIO	GREEN LED
PIO0_28	GPIO	RED LED
PIO0_29	USART	USART RX
PIO0_30	USART	USART TX
PIO1_11	GPIO	BLUE_LED
PIO1_18	GPIO	Wakeup SW1
PIO1_20	FLEXPPWM0_PWM0_A	pwm
PIO1_17	FLEXPPWM0_PWM0_B	pwm
PIO1_6	FLEXPPWM0_PWM1_A	pwm
PIO1_22	FLEXPPWM0_PWM1_B	pwm
PIO1_8	FLEXPPWM0_PWM2_A	pwm
PIO1_4	FLEXPPWM0_PWM2_B	pwm
PIO1_21	FLEXPPWM1_PWM0_A	pwm
PIO0_3	FLEXPPWM1_PWM0_B	pwm
PIO1_23	FLEXPPWM1_PWM1_A	pwm
PIO0_21	FLEXPPWM1_PWM1_B	pwm
PIO1_25	FLEXPPWM1_PWM2_A	pwm
PIO0_31	FLEXPPWM1_PWM2_B	pwm
PIO1_2	CAN0_TXD	CAN TX
PIO1_3	CAN0_RXD	CAN RX
PIO0_22	USB0_VBUS	USBFS VBUS

System Clock

The LPC55S36 SoC is configured to use PLL1 clocked from the external 24MHz crystal, running at 144MHz as a source for the system clock. When the flash controller is enabled, the core clock will be reduced to 96MHz. Other sources for the system clock are provided in the SOC, depending on your system requirements.

Serial Port

The LPC55S36 SoC has 8 FLEXCOMM interfaces for serial communication. One is configured as USART for the console and the remaining are not used.

Programming and Debugging

Build and flash applications as usual (see Building an Application and Run an Application for more details).

Configuring a Debug Probe

LinkServer is the default runner for this board. A debug probe is used for both flashing and debugging the board. This board is configured by default to use the integrated MCU-Link Onboard Debug Probe in the CMSIS-DAP mode. To use this probe with Zephyr, you need to install the LinkServer Debug Host Tools and make sure they are in your search path. Refer to the detailed overview about Application Debugging for additional information.

The integrated MCU-Link hardware can also be used as a J-Link probe with a firmware update, as described in MCU-Link JLink Onboard Debug Probe. The J-Link Debug Host Tools should be available in this case.

Configuring a Console

Connect a USB cable from your PC to J1 (LINK2), and use the serial terminal of your choice (minicom, putty, etc.) with the following settings:

Speed: 115200
Data: 8 bits
Parity: None
Stop bits: 1

Flashing

Here is an example for the Hello World application.

# From the root of the zephyr repository
west build -b lpcxpresso55s36 samples/hello_world
west flash

Open a serial terminal, reset the board (press the RESET button), and you should see the following message in the terminal:

***** Booting Zephyr OS v2.2.0 *****
Hello World! lpcxpresso55s36

Debugging