/* * Copyright (C) 2023 Otto-von-Guericke-Universität Magdeburg * * This file is subject to the terms and conditions of the GNU Lesser * General Public License v2.1. See the file LICENSE in the top level * directory for more details. */ /** * @ingroup boards_nrf52840dk * @{ * * @file * @brief Mapping from MCU pins to Arduino pins * * You can use the defines in this file for simplified interaction with the * Arduino specific pin numbers. * * @author Marian Buschsieweke */ #ifndef ARDUINO_IOMAP_H #define ARDUINO_IOMAP_H #include "periph/gpio.h" #include "periph/adc.h" #ifdef __cplusplus extern "C" { #endif /** * @name Arduino's UART devices * @{ */ #define ARDUINO_UART_D0D1 UART_DEV(1) /** @} */ /** * @name Arduino's SPI buses * @{ */ /** * @brief SPI_DEV(1) is connected to D11/D12/D13 */ /* D11/D12/D13 are on P1.13, P1.14, P1.15 */ #define ARDUINO_SPI_D11D12D13 SPI_DEV(0) /* The ISP SPI bus is also connected to P1.13, P1.14, P1.15 */ #define ARDUINO_SPI_ISP SPI_DEV(0) /** @} */ /** * @name Arduino's I2C buses * @{ */ /** * @brief The first I2C bus is where shields for the Arduino UNO/Mega expect * it */ #define ARDUINO_I2C_UNO I2C_DEV(0) /** @} */ /** * @name Mapping of MCU pins to Arduino pins * @{ */ /* P3 header on the nRF52840DK */ #define ARDUINO_PIN_0 GPIO_PIN(1, 1) #define ARDUINO_PIN_1 GPIO_PIN(1, 2) #define ARDUINO_PIN_2 GPIO_PIN(1, 3) #define ARDUINO_PIN_3 GPIO_PIN(1, 4) #define ARDUINO_PIN_4 GPIO_PIN(1, 5) #define ARDUINO_PIN_5 GPIO_PIN(1, 6) #define ARDUINO_PIN_6 GPIO_PIN(1, 7) #define ARDUINO_PIN_7 GPIO_PIN(1, 8) /* P4 header on the nRF52840DK */ #define ARDUINO_PIN_8 GPIO_PIN(1, 10) #define ARDUINO_PIN_9 GPIO_PIN(1, 11) #define ARDUINO_PIN_10 GPIO_PIN(1, 12) #define ARDUINO_PIN_11 GPIO_PIN(1, 13) #define ARDUINO_PIN_12 GPIO_PIN(1, 14) #define ARDUINO_PIN_13 GPIO_PIN(1, 15) /* SCL and SDA on this header are not available as digital pins in the * Arduino world. It is P0.26 and P0.27 here, though. Also what would be * AREF in the Arduino world is P0.02 here */ /* P6 header on the nRF52840DK */ #define ARDUINO_PIN_14 GPIO_PIN(0, 10) #define ARDUINO_PIN_15 GPIO_PIN(0, 9) #define ARDUINO_PIN_16 GPIO_PIN(0, 8) #define ARDUINO_PIN_17 GPIO_PIN(0, 7) #define ARDUINO_PIN_18 GPIO_PIN(0, 6) #define ARDUINO_PIN_19 GPIO_PIN(0, 5) #define ARDUINO_PIN_20 GPIO_PIN(0, 1) #define ARDUINO_PIN_21 GPIO_PIN(0, 0) /* P24 header on the nRF52840DK * Note: The header is one column short on the right (missing a column of * two 5V supply pins) and 8 columns on the left (missing D40 to D53 * and two GND on the leftmost column). * Warning: Where D39 is expected a GND pin is sitting instead */ #define ARDUINO_PIN_22 GPIO_PIN(0, 11) #define ARDUINO_PIN_23 GPIO_PIN(0, 12) #define ARDUINO_PIN_24 GPIO_PIN(0, 13) #define ARDUINO_PIN_25 GPIO_PIN(0, 14) #define ARDUINO_PIN_26 GPIO_PIN(0, 15) #define ARDUINO_PIN_27 GPIO_PIN(0, 16) #define ARDUINO_PIN_28 GPIO_PIN(0, 17) #define ARDUINO_PIN_29 GPIO_PIN(0, 18) #define ARDUINO_PIN_30 GPIO_PIN(0, 19) #define ARDUINO_PIN_31 GPIO_PIN(0, 20) #define ARDUINO_PIN_32 GPIO_PIN(0, 21) #define ARDUINO_PIN_33 GPIO_PIN(0, 22) #define ARDUINO_PIN_34 GPIO_PIN(0, 23) #define ARDUINO_PIN_35 GPIO_PIN(0, 24) #define ARDUINO_PIN_36 GPIO_PIN(0, 25) #define ARDUINO_PIN_37 GPIO_PIN(1, 0) #define ARDUINO_PIN_38 GPIO_PIN(1, 9) /* P2 header on the nRF52840DK * Note: This header only provides A0 - A5, but it should be two pins * longer for full Arduino Mega compatibility */ #define ARDUINO_PIN_54 GPIO_PIN(0, 3) #define ARDUINO_PIN_55 GPIO_PIN(0, 4) #define ARDUINO_PIN_56 GPIO_PIN(0, 28) #define ARDUINO_PIN_57 GPIO_PIN(0, 29) #define ARDUINO_PIN_58 GPIO_PIN(0, 30) #define ARDUINO_PIN_59 GPIO_PIN(0, 31) /* Note: There is no header for A8 - A15 present, which would be required * for full Arduino Mega compatibility */ #define ARDUINO_PIN_LAST 59 /** @} */ /** * @name Aliases for analog pins * @{ */ #define ARDUINO_PIN_A0 ARDUINO_PIN_54 #define ARDUINO_PIN_A1 ARDUINO_PIN_55 #define ARDUINO_PIN_A2 ARDUINO_PIN_56 #define ARDUINO_PIN_A3 ARDUINO_PIN_57 #define ARDUINO_PIN_A4 ARDUINO_PIN_58 #define ARDUINO_PIN_A5 ARDUINO_PIN_59 /** @} */ /** * @name Mapping of Arduino analog pins to RIOT ADC lines * @{ */ /* The nRF52840 has a fixed ADC to GPIO mapping: * * nRF | MCU pin | Exposed as Arduino pin * -----|-----------|----------------------- * AIN0 | P0.02 | AREF * AIN1 | P0.03 | A0 (D54) * AIN2 | P0.04 | A1 (D55) * AIN3 | P0.05 | - (D19) * AIN4 | P0.28 | A2 (D56) * AIN5 | P0.29 | A3 (D57) * AIN6 | P0.30 | A4 (D48) * AIN7 | P0.31 | A5 (D59) */ #define ARDUINO_A0 ADC_LINE(1) #define ARDUINO_A1 ADC_LINE(2) #define ARDUINO_A2 ADC_LINE(4) #define ARDUINO_A3 ADC_LINE(5) #define ARDUINO_A4 ADC_LINE(6) #define ARDUINO_A5 ADC_LINE(7) #define ARDUINO_ANALOG_PIN_LAST 5 /** @} */ #ifdef __cplusplus } #endif #endif /* ARDUINO_IOMAP_H */ /** @} */