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boards/avr/atmega: Added Elegoo Mega2560r3 board support

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Preliminary support for the Elegoo Mega2560r3 board by Elegoo with NSH
configuration.
This commit is contained in:
Matteo Golin 2025-05-24 23:18:23 -04:00 • committed by Xiang Xiao
parent 5bcf42e962
commit ef04b4ccb6
12 changed files with 736 additions and 0 deletions
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Documentation/platforms/avr/atmega/boards/elegoo-mega2560r3/index.rst Normal file
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====================
Elegoo Mega2560 Rev3
====================
.. tags:: chip:atmega2560, chip:atmega, arch:avr, vendor:elegoo, experimental
.. figure:: elegoo-mega2560r3.jpg
:scale: 40 %
:align: center
:alt: The Elegoo Mega2560 Rev3 board with its included USB cable
The Elegoo Mega2560 Rev3 board with its included USB cable
This board is a variant of the `Arduino Mega2560 Rev3 board
<https://docs.arduino.cc/hardware/mega-2560/>`_ designed by Elegoo. The `product
listing can be found here
<https://us.elegoo.com/products/elegoo-mega-2560-r3-board>`_.
Features
========
* Atmel ATMega2560 chip
* 54 digital pins
* 16 analog inputs
* 4 serial ports
* 4KB EEPROM
.. warning::
The ATMega2560 chip supported is limited, and thus this board does not
support many peripherals. If you would like to help improve support for this
board and other ATMega2560-based boards, please see the :doc:`contributing
guidelines </contributing/index>`.
Buttons and LEDs
================
The board has a large RESET button, which is not user controllable.
There are 4 LEDs on-board the Elegoo Mega2560 Rev3:
* ON: indicates active power, connected directly to the power supply
* TX: indicates transmitting data
* RX: indicates receiving data
* TEST: board controllable LED, near "PWM" label. Turns on to indicate that
NuttX started, and flashes at 1Hz to indicate panic.
Pin Mapping
===========
The full pin-out of this board is the same as the Arduino Mega2560r3 pinout,
which can be found `here <https://docs.arduino.cc/hardware/mega-2560/>`_.
Power Supply
============
This board uses 5V logic. It has on-board power regulation to provide 5V and
3.3V rails to the user. The 3.3V rail can only supply 50mA.
The board can be powered a few different ways:
* Via the USB connection at 5V
* Via external power supply to the barrel jack (center-positive) at 7V - 12V
Installation
============
You will need the ``avrdude`` utility to flash this board. For instructions on
how to install the AVR toolchain, consult the main documentation for the AVR
architecture.
Building NuttX
==============
In order to build NuttX, you can follow the regular process of using
``./tools/configure.sh`` and ``make``.
.. code:: console
$ ./tools/configure.sh elegoo-mega2560r3:nsh
$ make
The build system will generate a ``.hex`` file along with the typical ELF file.
If not, enable the ``CONFIG_INTELHEX_BINARY`` option.
.. warning::
Beware of the small memory size of this board's chip when choosing what to
include in your NuttX image.
Flashing
========
Then, to flash the board, connect it via USB to the host computer and run the
following command:
.. code:: console
$ avrdude -c stk500v2 -p m2560 -P /dev/ttyACM0 -U flash:w:nuttx.hex -v -D
This command assumes that the board USB connection is available on ``ttyACM0``,
but you should verify the file path to its connection. You can use ``lsusb`` on
Linux to look for "Arduino SA Mega 2560 R3".
If you want to reduce the console output of the command, remove the ``-v`` flag.
The board uses the STK500v2 programmer type through the on-board programmer,
hence the argument to ``-c``. The argument to ``-p`` specifies the AVR device to
be the ATMega2560. The ``-U`` argument tells the program to write the
``nuttx.hex`` image to flash.
Configurations
==============
nsh
---
Very basic configuration with the ``nsh`` shell on the UART0 pins at a baud
rate of 38400. You can also access UART0 through the USB connector on your host
machine.

12
boards/Kconfig
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@ -27,6 +27,14 @@ config ARCH_BOARD_ARDUINO_MEGA2560
This option selects the Arduino Mega 2560 board featuring the Atmel
Atmega2560 MCU running at 16 MHz.
config ARCH_BOARD_ELEGOO_MEGA2560R3
bool "Elegoo Mega 2560r3"
depends on ARCH_CHIP_ATMEGA2560
select ARCH_HAVE_LEDS
---help---
This option selects the Elegoo Mega 2560 board featuring the Atmel
Atmega2560 MCU running at 16 MHz.
config ARCH_BOARD_ARDUINO_DUE
bool "Arduino Due"
depends on ARCH_CHIP_ATSAM3X8E
@ -3450,6 +3458,7 @@ config ARCH_BOARD
default "efm32-g8xx-stk" if ARCH_BOARD_EFM32G8XXSTK
default "efm32gg-stk3700" if ARCH_BOARD_EFM32GG_STK3700
default "ekk-lm3s9b96" if ARCH_BOARD_EKKLM3S9B96
default "elegoo-mega2560r3" if ARCH_BOARD_ELEGOO_MEGA2560R3
default "emw3162" if ARCH_BOARD_EMW3162
default "quickfeather" if ARCH_BOARD_QUICKFEATHER
default "esp32-audio-kit" if ARCH_BOARD_ESP32_AUDIO_KIT
@ -4597,6 +4606,9 @@ endif
if ARCH_BOARD_ARDUINO_MEGA2560
source "boards/avr/atmega/arduino-mega2560/Kconfig"
endif
if ARCH_BOARD_ELEGOO_MEGA2560R3
source "boards/avr/atmega/elegoo-mega2560r3/Kconfig"
endif
if ARCH_BOARD_MOTEINO_MEGA
source "boards/avr/atmega/moteino-mega/Kconfig"
endif

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boards/avr/atmega/elegoo-mega2560r3/Kconfig Normal file
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#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#

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boards/avr/atmega/elegoo-mega2560r3/configs/nsh/defconfig Normal file
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#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_DEBUG_OPT_UNUSED_SECTIONS is not set
CONFIG_ARCH="avr"
CONFIG_ARCH_AVR=y
CONFIG_ARCH_BOARD="elegoo-mega2560r3"
CONFIG_ARCH_BOARD_ELEGOO_MEGA2560R3=y
CONFIG_ARCH_CHIP="atmega"
CONFIG_ARCH_CHIP_ATMEGA2560=y
CONFIG_ARCH_CHIP_ATMEGA=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_AVR_LINUXGCC_TOOLCHAIN=y
CONFIG_AVR_USART0=y
CONFIG_BOARD_LOOPSPERMSEC=800
CONFIG_DEBUG_FULLOPT=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DEFAULT_SMALL=y
CONFIG_DISABLE_MOUNTPOINT=y
CONFIG_IDLETHREAD_STACKSIZE=128
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INIT_STACKSIZE=768
CONFIG_INTELHEX_BINARY=y
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=4
CONFIG_NUNGET_CHARS=0
CONFIG_POSIX_SPAWN_DEFAULT_STACKSIZE=768
CONFIG_PTHREAD_STACK_DEFAULT=128
CONFIG_PTHREAD_STACK_MIN=128
CONFIG_RAM_SIZE=8192
CONFIG_RAM_START=0x800200
CONFIG_START_DAY=16
CONFIG_START_MONTH=6
CONFIG_START_YEAR=2011
CONFIG_STDIO_BUFFER_SIZE=0
CONFIG_SYSTEM_NSH=y
CONFIG_TASK_NAME_SIZE=0
CONFIG_USART0_BAUD=38400
CONFIG_USART0_SERIAL_CONSOLE=y

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boards/avr/atmega/elegoo-mega2560r3/include/board.h Normal file
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/****************************************************************************
* boards/avr/atmega/elegoo-mega2560r3/include/board.h
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __BOARDS_AVR_ATMEGA_ELEGOO_MEGA2560R3_INCLUDE_BOARD_H
#define __BOARDS_AVR_ATMEGA_ELEGOO_MEGA2560R3_INCLUDE_BOARD_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* Clocking *****************************************************************/
/* Assume default CLKDIV8 fuse setting is overridden to CLKDIV1 */
/* #define BOARD_XTAL_FREQ 20000000 */ /* 20MHz crystal */
/* #define BOARD_XTAL_FREQ 16700000 */ /* 16.7MHz crystal */
#define BOARD_XTAL_FREQ 16000000 /* 16MHz crystal */
#define BOARD_CPU_CLOCK BOARD_XTAL_FREQ /* F_CPU = 16MHz */
/* LED definitions for Elegoo Mega2560r3 */
#define LED_STARTED 0 /* OFF ON (when board turns on) */
#define LED_HEAPALLOCATE 1 /* OFF ON (never happens) */
#define LED_IRQSENABLED 1 /* OFF ON (never happens) */
#define LED_STACKCREATED 1 /* ON ON (never happens) */
#define LED_INIRQ 1 /* OFF NC (never happens) */
#define LED_SIGNAL 1 /* OFF NC (never happens) */
#define LED_ASSERTION 1 /* OFF NC (never happens) */
#define LED_PANIC 2 /* OFF ON (1Hz flashing PB7) */
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Inline Functions
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_AVR_ATMEGA_ELEGOO_MEGA2560R3_INCLUDE_BOARD_H */

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boards/avr/atmega/elegoo-mega2560r3/scripts/Make.defs Normal file
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############################################################################
# boards/avr/atmega/elegoo-mega2560r3/scripts/Make.defs
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################
include $(TOPDIR)/.config
include $(TOPDIR)/tools/Config.mk
include $(TOPDIR)/arch/avr/src/avr/Toolchain.defs
LDSCRIPT = flash.ld
ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
AFLAGS := $(CFLAGS) -D__ASSEMBLY__
EXEEXT = .elf

200
boards/avr/atmega/elegoo-mega2560r3/scripts/flash.ld Normal file
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/****************************************************************************
* boards/avr/atmega/elegoo-mega2560r3/scripts/flash.ld
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/* Memory Regions ***********************************************************/
/* ------ ------ ------+------- -- ------ -- ------ --- ------ ----+------- ---
* FLASH | REGISTERS I/O EXT I/O ISRAM | EEPROM
* | REGISTERS REGISTERS |
* ------- ------ -----+------- -- ------ -- ------ --- ------ ----+------- ---
* 0x0000 256Kb| 0x0000 32 0x0020 64 0x0060 416 0x0200 8Kb | 0x0000 4Kb
* ------- ------ -----+------- -- ------ -- ------ --- ------ ----+------- ---
* *Memory configuration A
*/
MEMORY
{
flash (rx) : ORIGIN = 0, LENGTH = 256K
sram (rw!x) : ORIGIN = 0x800200, LENGTH = 8K
eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = 4K
}
ENTRY(__start)
SECTIONS
{
/* Read-only sections, merged into text segment: */
.hash : { *(.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.gnu.version : { *(.gnu.version) }
.gnu.version_d : { *(.gnu.version_d) }
.gnu.version_r : { *(.gnu.version_r) }
.rel.init : { *(.rel.init) }
.rela.init : { *(.rela.init) }
.rel.text :
{
*(.rel.text)
*(.rel.text.*)
*(.rel.gnu.linkonce.t*)
}
.rela.text :
{
*(.rela.text)
*(.rela.text.*)
*(.rela.gnu.linkonce.t*)
}
.rel.fini : { *(.rel.fini) }
.rela.fini : { *(.rela.fini) }
.rel.rodata :
{
*(.rel.rodata)
*(.rel.rodata.*)
*(.rel.gnu.linkonce.r*)
}
.rela.rodata :
{
*(.rela.rodata)
*(.rela.rodata.*)
*(.rela.gnu.linkonce.r*)
}
.rel.data :
{
*(.rel.data)
*(.rel.data.*)
*(.rel.gnu.linkonce.d*)
}
.rela.data :
{
*(.rela.data)
*(.rela.data.*)
*(.rela.gnu.linkonce.d*)
}
.rel.ctors : { *(.rel.ctors) }
.rela.ctors : { *(.rela.ctors) }
.rel.dtors : { *(.rel.dtors) }
.rela.dtors : { *(.rela.dtors) }
.rel.got : { *(.rel.got) }
.rela.got : { *(.rela.got) }
.rel.bss : { *(.rel.bss) }
.rela.bss : { *(.rela.bss) }
.rel.plt : { *(.rel.plt) }
.rela.plt : { *(.rela.plt) }
.text :
{
_stext = . ;
KEEP(*(.vectors))
*(.init)
*(.handlers)
*(.progmem .progmem.*)
. = ALIGN(2);
*(.text)
*(.text.*)
_etext = . ;
} > flash
.data :
{
_sdata = ABSOLUTE(.);
*(.rodata .rodata.*)
*(.data .data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = ABSOLUTE(.);
} > sram AT > flash
_eronly = LOADADDR(.data);
.bss :
{
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
_ebss = ABSOLUTE(.);
} > sram
/* Global data not cleared after reset. */
.noinit :
{
_snoinit = ABSOLUTE(.);
*(.noinit*)
_enoinit = ABSOLUTE(.);
} > sram
.eeprom :
{
_seeprom = ABSOLUTE(.);
*(.eeprom*)
_eeeprom = ABSOLUTE(.);
} > eeprom
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
}

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boards/avr/atmega/elegoo-mega2560r3/src/Makefile Normal file
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@ -0,0 +1,31 @@
############################################################################
# boards/avr/atmega/elegoo-mega2560r3/src/Makefile
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################
include $(TOPDIR)/Make.defs
CSRCS = avr_boot.c
ifeq ($(CONFIG_ARCH_LEDS),y)
CSRCS += avr_leds.c
endif
include $(TOPDIR)/boards/Board.mk

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/****************************************************************************
* boards/avr/atmega/elegoo-mega2560r3/src/avr_boot.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include <arch/board/board.h>
#include <nuttx/board.h>
#include "atmega.h"
#include "avr_internal.h"
#include "elegoo_mega2560r3.h"
/****************************************************************************
* Definitions
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_boardinitialize
*
* Description:
* All ATMega architectures must provide the following entry point.
* This entry point is called early in the initialization -- after all
* memory has been configured and mapped but before any devices have been
* initialized.
*
****************************************************************************/
void atmega_boardinitialize(void)
{
/* Configure on-board LEDs if LED support has been selected. */
#ifdef CONFIG_ARCH_LEDS
board_autoled_initialize();
#endif
}

81
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/****************************************************************************
* boards/avr/atmega/elegoo-mega2560r3/src/avr_leds.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include <arch/board/board.h>
#include <avr/io.h>
#include "avr_internal.h"
#include "elegoo_mega2560r3.h"
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: board_autoled_initialize
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void board_autoled_initialize(void)
{
DDRB |= (1 << 7); /* Configure as output */
}
/****************************************************************************
* Name: board_autoled_on
****************************************************************************/
void board_autoled_on(int led)
{
switch (led)
{
case LED_STARTED:
case LED_PANIC:
PORTB |= (1 << 7);
break;
}
}
/****************************************************************************
* Name: board_autoled_off
****************************************************************************/
void board_autoled_off(int led)
{
switch (led)
{
case LED_STARTED:
case LED_PANIC:
PORTB &= ~(1 << 7);
break;
}
}
#endif /* CONFIG_ARCH_LEDS */

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boards/avr/atmega/elegoo-mega2560r3/src/elegoo_mega2560r3.h Normal file
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/****************************************************************************
* boards/avr/atmega/elegoo-mega2560r3/src/elegoo_mega2560r3.h
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __BOARDS_AVR_ATMEGA_ELEGOO_MEGA2560R3_SRC_ELEGOO_MEGA2560R3_H
#define __BOARDS_AVR_ATMEGA_ELEGOO_MEGA2560R3_SRC_ELEGOO_MEGA2560R3_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Inline Functions
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_AVR_ATMEGA_ELEGOO_MEGA2560R3_SRC_ELEGOO_MEGA2560R3_H */