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https://github.com/RIOT-OS/RIOT.git
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d9863c6b3c
This adds the board specification of the Adafruit Metro M4 Express [1]. The significance of this board is that it is compatible with both classical SPI Arduino Shields using the ISP header for SPI (such as `shield_w5100`) and more recent shields using D11/D12/D13 as SPI (such as `shield_llcc68`). [1]: https://learn.adafruit.com/adafruit-metro-m4-express-featuring-atsamd51/overview
119 lines
3.2 KiB
C
119 lines
3.2 KiB
C
/*
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* Copyright (C) 2024 ML!PA Consulting GmbH
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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 boards_adafruit-metro-m4-express
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* @{
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*
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* @file
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* @brief Mapping from MCU pins to Arduino pins
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*
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* @author Marian Buschsieweke <marian.buschsieweke@posteo.net>
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*/
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#ifndef ARDUINO_IOMAP_H
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#define ARDUINO_IOMAP_H
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#include "periph/gpio.h"
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#include "periph/adc.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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* @name Mapping of MCU pins to Arduino pins
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* @{
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*/
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#define ARDUINO_PIN_0 GPIO_PIN(PA, 23)
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#define ARDUINO_PIN_1 GPIO_PIN(PA, 22)
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#define ARDUINO_PIN_2 GPIO_PIN(PB, 17)
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#define ARDUINO_PIN_3 GPIO_PIN(PB, 16)
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#define ARDUINO_PIN_4 GPIO_PIN(PB, 13)
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#define ARDUINO_PIN_5 GPIO_PIN(PB, 14)
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#define ARDUINO_PIN_6 GPIO_PIN(PB, 15)
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#define ARDUINO_PIN_7 GPIO_PIN(PB, 12)
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#define ARDUINO_PIN_8 GPIO_PIN(PA, 21)
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#define ARDUINO_PIN_9 GPIO_PIN(PA, 20)
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#define ARDUINO_PIN_10 GPIO_PIN(PA, 18)
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#define ARDUINO_PIN_11 GPIO_PIN(PA, 19)
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#define ARDUINO_PIN_12 GPIO_PIN(PA, 17)
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#define ARDUINO_PIN_13 GPIO_PIN(PA, 16)
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/* SDA and SCL */
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#define ARDUINO_PIN_14 GPIO_PIN(PB, 2) /* SDA */
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#define ARDUINO_PIN_15 GPIO_PIN(PB, 3) /* SCL */
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/* Analog pins as digital pins: */
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#define ARDUINO_PIN_16 GPIO_PIN(PA, 2) /* A0 */
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#define ARDUINO_PIN_17 GPIO_PIN(PA, 5) /* A1 */
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#define ARDUINO_PIN_18 GPIO_PIN(PA, 6) /* A2 */
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#define ARDUINO_PIN_19 GPIO_PIN(PA, 4) /* A3 */
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#define ARDUINO_PIN_20 GPIO_PIN(PB, 8) /* A4 */
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#define ARDUINO_PIN_21 GPIO_PIN(PB, 9) /* A5 */
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#define ARDUINO_PIN_LAST 21
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/** @} */
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/**
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* @name Aliases for non-digital pins as digital pins
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* @{
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*/
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#define ARDUINO_PIN_SDA ARDUINO_PIN_14
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#define ARDUINO_PIN_SCL ARDUINO_PIN_15
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#define ARDUINO_PIN_A0 ARDUINO_PIN_16
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#define ARDUINO_PIN_A1 ARDUINO_PIN_17
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#define ARDUINO_PIN_A2 ARDUINO_PIN_18
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#define ARDUINO_PIN_A3 ARDUINO_PIN_19
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#define ARDUINO_PIN_A4 ARDUINO_PIN_20
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#define ARDUINO_PIN_A5 ARDUINO_PIN_21
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/** @} */
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/**
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* @name Mapping of Arduino analog pins to RIOT ADC lines
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* @{
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*/
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#define ARDUINO_A0 ADC_LINE(0)
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#define ARDUINO_A1 ADC_LINE(1)
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#define ARDUINO_A2 ADC_LINE(2)
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#define ARDUINO_A3 ADC_LINE(3)
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#define ARDUINO_A4 ADC_LINE(4)
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#define ARDUINO_A5 ADC_LINE(5)
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#define ARDUINO_ANALOG_PIN_LAST 5
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/** @} */
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/**
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* @name Arduino's default SPI device
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* @{
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*/
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/**
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* @brief SPI_DEV(0) is connected to the ISP header
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*/
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#define ARDUINO_SPI_ISP SPI_DEV(0)
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/**
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* @brief SPI_DEV(1) is connected to D11/D12/D13
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*
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* The SPI on D11/D12/D13 is only available when `periph_uart` is not used due
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* to a conflicting use of the same SERCOM. If it is available, it is the last
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* SPI bus.
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*/
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#if !MODULE_PERIPH_UART
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# define ARDUINO_SPI_D11D12D13 SPI_DEV(1)
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#endif
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif /* ARDUINO_IOMAP_H */
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/** @} */
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