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https://github.com/RIOT-OS/RIOT.git
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55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
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/*
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* Copyright (C) 2016 Freie Universität Berlin
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* 2017 Thomas Perrot <thomas.perrot@tupi.fr>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup sys_arduino
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* @{
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*
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* @file
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* @brief Configuration of the Arduino API for Arduino Atmega boards
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*
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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* @author Laurent Navet <laurent.navet@gmail.com>
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* @author Thomas Perrot <thomas.perrot@tupi.fr>
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*/
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#ifndef ARDUINO_BOARD_H
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#define ARDUINO_BOARD_H
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#include "arduino_board_analog.h"
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#include "arduino_board_pins.h"
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#include "arduino_board_pwm.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief F_CPU defines the CPU frequency in Hz.
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*
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* This is used in AVR's libc delay.h and setbaud.h
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*
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* In RIOT delay() has a different implementation using ztimer, and F_CPU is
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* already defined when using setbaud.h (see cpu/atmega_common/periph/uart.c)
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*
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* However Arduino libraries and sketches may expect F_CPU to be defined and
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* fail otherwise (for example the Arduino SDI-12 package expects this, for AVR
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* cpus). For this reason we define F_CPU here, if not already defined.
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*/
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#ifndef F_CPU
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#define F_CPU CLOCK_CORECLOCK
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* ARDUINO_BOARD_H */
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/** @} */
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