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043e8cc88e
- Rename all `arduino_pinmap.h` to `arduino_iomap.h`
- An empty `arduino_pinmap.h` that just includes `arduino_iomap.h`
is provided for backward compatibility
- Move all info from `arduino_board.h` into the new file as trivial
macros, so that they can also be used outside of sketches
- The new name reflects the fact not just pin mappings, but also
other I/O features such as PWMs are mapped
- Drop all `arduino_board.h`
- `arduino_board.h` and `arduino_iomap.h` now provide the exact
same information, just in a different format
- a generic `arduino_board.h` is provided instead that just
uses the info in `arduinio_iomap.h` and provides them in the
format the code in `sys/arduino` expects it
- Add fine grained features to indicate for mappings
- availability of mappings for analog pins, DAC pins, PWM pins,
UART devices, SPI/I2C buses to the corresponding RIOT
identification can now be expressed:
- `arduino_pins`: `ARDUINO_PIN_0` etc. are available
- `arduino_analog`: `ARDUINO_A0` etc. are available
- `arduino_pwm`: `ARDUINO_PIN_13_PWM_DEV` etc. are available
- `arduino_dac`: `ARDUINO_DAC0` etc. are available
- `arduino_uart`: `ARDUINO_UART_D0D1` or similar are available
- `arduino_spi`: `ARDUINO_SPI_ISP` or similar are available
- `arduino_i2c`: `ARDUINO_I2C_UNO` or similar are available
- mechanical/electrical compatibility with specific form factors
can now be expressed as features:
- `aruino_shield_nano`: Arduino NANO compatible headers
- `aruino_shield_uno`: Arduino UNO compatible headers
- `aruino_shield_mega`: Arduino MEGA compatible headers
- `aruino_shield_isp`: ISP header is available
This provides the groundwork to implement shield support as modules
that can rely on the I/O mappings, rather than having to provide a
configuration per board.
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/*
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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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