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boards: arm: Add LPCXpresso55S28 dev board
Add initial support for NXP LPCXpresso55S28 development board. Signed-off-by: Christian Taedcke <[email protected]>
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‎boards/arm/lpcxpresso55s28/CMakeLists.txt‎

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#
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# Copyright (c) 2020 Lemonbeat GmbH
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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if(CONFIG_PINMUX_MCUX_LPC)
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zephyr_library()
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zephyr_library_include_directories(${ZEPHYR_BASE}/drivers)
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zephyr_library_sources(pinmux.c)
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endif()

‎boards/arm/lpcxpresso55s28/Kconfig.board‎

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# LPCXpresso55S28 board
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# Copyright (c) 2020 Lemonbeat GmbH
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# SPDX-License-Identifier: Apache-2.0
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config BOARD_LPCXPRESSO55S28
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bool "NXP LPCXPRESSO-55S28"
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depends on SOC_SERIES_LPC55XXX
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select SOC_PART_NUMBER_LPC55S28JBD100

‎boards/arm/lpcxpresso55s28/Kconfig.defconfig‎

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# LPCXpresso55S28 board
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# Copyright (c) 2020 Lemonbeat GmbH
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# SPDX-License-Identifier: Apache-2.0
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if BOARD_LPCXPRESSO55S28
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config BOARD
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default "lpcxpresso55S28"
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if PINMUX_MCUX_LPC
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config PINMUX_MCUX_LPC_PORT0
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default y
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config PINMUX_MCUX_LPC_PORT1
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default y
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endif # PINMUX_MCUX_LPC
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if GPIO_MCUX_LPC
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config GPIO_MCUX_LPC_PORT0
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default y
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config GPIO_MCUX_LPC_PORT1
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default y
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endif # GPIO_MCUX_LPC
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config SPI_8
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default y
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depends on SPI
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config FXOS8700_DRDY_INT1
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default y
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depends on FXOS8700_TRIGGER
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# For the secure version of the board the firmware is linked at the beginning
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# of the flash, or into the code-partition defined in DT if it is intended to
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# be loaded by MCUboot. If the secure firmware is to be combined with a non-
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# secure image (TRUSTED_EXECUTION_SECURE=y), the secure FW image shall always
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# be restricted to the size of its code partition.
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# For the non-secure version of the board, the firmware
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# must be linked into the code-partition (non-secure) defined in DT, regardless.
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# Apply this configuration below by setting the Kconfig symbols used by
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# the linker according to the information extracted from DT partitions.
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# Workaround for not being able to have commas in macro arguments
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DT_CHOSEN_Z_CODE_PARTITION := zephyr,code-partition
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config FLASH_LOAD_SIZE
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default $(dt_chosen_reg_size_hex,$(DT_CHOSEN_Z_CODE_PARTITION))
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depends on BOARD_LPCXPRESSO55S28 && TRUSTED_EXECUTION_SECURE
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endif # BOARD_LPCXPRESSO55S28
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if DMA_MCUX_LPC
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# Memory from the heap pool is used to allocate DMA descriptors for
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# channels that use multiple blocks for a DMA transfer.
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# Adjust HEAP_MEM_POOL_SIZE in case you need more memory.
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config HEAP_MEM_POOL_SIZE
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default 4096
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endif # DMA_MCUX_LPC

‎boards/arm/lpcxpresso55s28/board.cmake‎

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#
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# Copyright (c) 2020 Lemonbeat GmbH
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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board_runner_args(pyocd "--target=lpc55s28")
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board_runner_args(jlink "--device=LPC55S28" "--reset-after-load")
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include(${ZEPHYR_BASE}/boards/common/pyocd.board.cmake)
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include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

‎boards/arm/lpcxpresso55s28/doc/LPC55S28-EVK.png‎

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‎boards/arm/lpcxpresso55s28/doc/index.rst‎

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.. _lpcxpresso55s28:
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NXP LPCXpresso55S28
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###################
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Overview
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********
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The LPCXpresso55S28 development board provides the ideal platform for evaluation
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of and development with the LPC552x/S2x MCU based on the Arm® Cortex®-M33
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architecture. The board includes a high-performance onboard debug probe, audio
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subsystem and accelerometer, with several options for adding off-the-shelf
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add-on boards for networking, sensors, displays, and other interfaces.
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.. image:: ./LPC55S28-EVK.png
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:width: 720px
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:align: center
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:alt: LPCXpresso55S28
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Hardware
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********
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- LPC55S28 Arm® Cortex®-M33 microcontroller running at up to 150 MHz
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- 512 KB flash and 256 KB SRAM on-chip
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- Onboard, high-speed USB, Link2 debug probe with CMSIS-DAP and SEGGER J-Link
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protocol options
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- UART and SPI port bridging from LPC55S28 target to USB via the onboard debug
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probe
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- Hardware support for external debug probe
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- 3 x user LEDs, plus Reset, ISP (3) and user buttons
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- Micro SD card slot (4-bit SDIO)
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- NXP MMA8652FCR1 accelerometer
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- Stereo audio codec with line in/out
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- High and full speed USB ports with micro A/B connector for host or device
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functionality
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- MikroEletronika Click expansion option
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- LPCXpresso-V3 expansion option compatible with Arduino UNO
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- PMod compatible expansion / host connector
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For more information about the LPC55S28 SoC and LPCXPresso55S28 board, see:
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- `LPC55S28 SoC Website`_
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- `LPC55S28 Datasheet`_
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- `LPC55S28 User Manual`_
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- `LPCXpresso55S28 Website`_
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- `LPCXpresso55S28 User Manual`_
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- `LPCXpresso55S28 Development Board Design Files`_
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Supported Features
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==================
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The lpcxpresso55s28 board configuration supports the following
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hardware features:
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+-----------+------------+-------------------------------------+
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| Interface | Controller | Driver/Component |
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+===========+============+=====================================+
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| NVIC | on-chip | nested vector interrupt controller |
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+-----------+------------+-------------------------------------+
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| SYSTICK | on-chip | systick |
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+-----------+------------+-------------------------------------+
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| IOCON | on-chip | pinmux |
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+-----------+------------+-------------------------------------+
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| GPIO | on-chip | gpio |
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+-----------+------------+-------------------------------------+
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| I2C | on-chip | i2c |
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+-----------+------------+-------------------------------------+
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| SPI | on-chip | spi |
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+-----------+------------+-------------------------------------+
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| USART | on-chip | serial port-polling |
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+-----------+------------+-------------------------------------+
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| WWDT | on-chip | windowed watchdog timer |
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+-----------+------------+-------------------------------------+
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| TrustZone | on-chip | Trusted Firmware-M |
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+-----------+------------+-------------------------------------+
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| ADC | on-chip | adc |
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+-----------+------------+-------------------------------------+
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| CLOCK | on-chip | clock_control |
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+-----------+------------+-------------------------------------+
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Other hardware features are not currently enabled.
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The default configuration file
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``boards/arm/lpcxpresso55s28/lpcxpresso55s28_defconfig``
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Currently available targets for this board are:
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- *lpcxpresso55s28* secure (S) address space
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- *lpcxpresso55s28_ns* non-secure (NS) address space
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Connections and IOs
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===================
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The LPC55S28 SoC has IOCON registers, which can be used to configure
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the functionality of a pin.
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+---------+-----------------+----------------------------+
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| Name | Function | Usage |
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+=========+=================+============================+
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| PIO0_26 | SPI | SPI MOSI |
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+---------+-----------------+----------------------------+
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| PIO0_29 | USART | USART RX |
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+---------+-----------------+----------------------------+
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| PIO0_30 | USART | USART TX |
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+---------+-----------------+----------------------------+
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| PIO1_1 | SPI | SPI SSEL |
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+---------+-----------------+----------------------------+
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| PIO1_2 | SPI | SPI SCK |
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+---------+-----------------+----------------------------+
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| PIO1_3 | SPI | SPI MISO |
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+---------+-----------------+----------------------------+
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| PIO1_4 | GPIO | RED LED |
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+---------+-----------------+----------------------------+
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| PIO1_6 | GPIO | BLUE_LED |
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+---------+-----------------+----------------------------+
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| PIO1_7 | GPIO | GREEN LED |
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+---------+-----------------+----------------------------+
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| PIO1_20 | I2C | I2C SCL |
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+---------+-----------------+----------------------------+
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| PIO1_21 | I2C | I2C SDA |
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+---------+-----------------+----------------------------+
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System Clock
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============
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The LPC55S28 SoC is configured to use the internal FRO at 96MHz as a
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source for the system clock. Other sources for the system clock are
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provided in the SOC, depending on your system requirements.
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Serial Port
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===========
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The LPC55S28 SoC has 8 FLEXCOMM interfaces for serial communication. One is
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configured as USART for the console and the remaining are not used.
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Programming and Debugging
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*************************
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Build and flash applications as usual (see :ref:`build_an_application`
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and :ref:`application_run` for more details).
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Configuring a Debug Probe
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=========================
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A debug probe is used for both flashing and debugging the board. This
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board is configured by default to use the LPC-Link2 CMSIS-DAP Onboard
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Debug Probe.
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Configuring a Console
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=====================
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Connect a USB cable from your PC to P6, and use the serial terminal of your
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choice (minicom, putty, etc.) with the following settings:
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- Speed: 115200
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- Data: 8 bits
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- Parity: None
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- Stop bits: 1
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Flashing
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========
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Here is an example for the :ref:`hello_world` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: lpcxpresso55s28_ns
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:goals: flash
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Open a serial terminal, reset the board (press the RESET button), and you should
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see the following message in the terminal:
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.. code-block:: console
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***** Booting Zephyr OS v2.4.0 *****
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Hello World! lpcxpresso55s28
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Debugging
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=========
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Here is an example for the :ref:`hello_world` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: lpcxpresso55s28
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:goals: debug
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Open a serial terminal, step through the application in your debugger, and you
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should see the following message in the terminal:
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.. code-block:: console
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***** Booting Zephyr OS zephyr-v2.4.0 *****
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Hello World! lpcxpresso55s28
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.. _LPC55S28 SoC Website:
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https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/lpc5500-cortex-m33/lpc552x-s2x-mainstream-arm-cortex-m33-based-microcontroller-family:LPC552x-S2x
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.. _LPC55S28 Datasheet:
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https://www.nxp.com/docs/en/data-sheet/LPC55S2X-LPC552X.pdf
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.. _LPC55S28 User Manual:
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https://www.nxp.com/webapp/Download?colCode=UM11126
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.. _LPCxpresso55S28 Website:
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https://www.nxp.com/design/software/development-software/lpcxpresso55s28-development-board:LPC55S28-EVK
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.. _LPCXpresso55S28 User Manual:
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https://www.nxp.com/webapp/Download?colCode=UM11158
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.. _LPCXpresso55S28 Development Board Design Files:
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https://www.nxp.com/webapp/Download?colCode=LPCXpresso55S69-DS

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