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Merge pull request #20106 from maribu/boards/nrf51dk
boards/nrf51dk: add ADC and Arduino features
This commit is contained in:
Marian Buschsieweke
GitHub
commit
80e46e3a3b
@ -12,6 +12,13 @@ config BOARD_NRF51DK
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default y
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select BOARD_COMMON_NRF51
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select CPU_MODEL_NRF51X22XXAC
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select HAS_ARDUINO_ANALOG
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select HAS_ARDUINO_I2C
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select HAS_ARDUINO_PINS
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select HAS_ARDUINO_SHIELD_ISP
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select HAS_ARDUINO_SHIELD_UNO
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select HAS_ARDUINO_SPI
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select HAS_PERIPH_ADC
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select HAS_PERIPH_I2C
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select HAS_PERIPH_SPI
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select HAS_PERIPH_UART
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@ -1,11 +1,18 @@
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CPU_MODEL = nrf51x22xxac
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# Put defined MCU peripherals here (in alphabetical order)
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FEATURES_PROVIDED += periph_adc
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FEATURES_PROVIDED += periph_i2c
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FEATURES_PROVIDED += periph_spi
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FEATURES_PROVIDED += periph_uart
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FEATURES_PROVIDED += periph_uart_hw_fc
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FEATURES_PROVIDED += vdd_lc_filter_reg1
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FEATURES_PROVIDED += arduino_analog
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FEATURES_PROVIDED += arduino_i2c
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FEATURES_PROVIDED += arduino_pins
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FEATURES_PROVIDED += arduino_shield_isp
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FEATURES_PROVIDED += arduino_shield_uno
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FEATURES_PROVIDED += arduino_spi
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# include common nrf51 based boards features
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include $(RIOTBOARD)/common/nrf51/Makefile.features
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123
boards/nrf51dk/include/arduino_iomap.h
Normal file
123
boards/nrf51dk/include/arduino_iomap.h
Normal file
@ -0,0 +1,123 @@
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/*
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* Copyright (C) 2023 Otto-von-Guericke-Universität Magdeburg
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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_nrf51dk
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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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* You can use the defines in this file for simplified interaction with the
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* Arduino specific pin numbers.
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*
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* @author Marian Buschsieweke <marian.buschsieweke@ovgu.de>
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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 Arduino's SPI buses
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* @{
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*/
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/**
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* @brief SPI_DEV(0) is connected to D11/D12/D13
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*/
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/* D11/D12/D13 are on P0.25, P0.28, P0.29 */
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#define ARDUINO_SPI_D11D12D13 SPI_DEV(0)
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/* The ISP SPI bus is also connected to P0.25, P0.28, P0.29 */
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#define ARDUINO_SPI_ISP SPI_DEV(0)
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/** @} */
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/**
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* @name Arduino's I2C buses
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* @{
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*/
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/**
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* @brief The first I2C bus is where shields for the Arduino UNO/Mega expect
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* it
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*/
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#define ARDUINO_I2C_UNO I2C_DEV(0)
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/** @} */
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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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/* P3 header on the nRF51DK */
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#define ARDUINO_PIN_0 GPIO_PIN(0, 12)
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#define ARDUINO_PIN_1 GPIO_PIN(0, 13)
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#define ARDUINO_PIN_2 GPIO_PIN(0, 14)
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#define ARDUINO_PIN_3 GPIO_PIN(0, 15)
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#define ARDUINO_PIN_4 GPIO_PIN(0, 16)
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#define ARDUINO_PIN_5 GPIO_PIN(0, 17)
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#define ARDUINO_PIN_6 GPIO_PIN(0, 18)
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#define ARDUINO_PIN_7 GPIO_PIN(0, 19)
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/* P4 header on the nRF51DK */
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#define ARDUINO_PIN_8 GPIO_PIN(0, 20)
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#define ARDUINO_PIN_9 GPIO_PIN(0, 23)
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#define ARDUINO_PIN_10 GPIO_PIN(0, 24)
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#define ARDUINO_PIN_11 GPIO_PIN(0, 25)
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#define ARDUINO_PIN_12 GPIO_PIN(0, 28)
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#define ARDUINO_PIN_13 GPIO_PIN(0, 29)
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/* SCL and SDA on this header are not available as digital pins in the
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* Arduino world. It is P0.30 and P0.07 here, though. Also what would be
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* AREF in the Arduino world is P0.00 here */
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/* P2 header on the nRF51DK */
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#define ARDUINO_PIN_14 GPIO_PIN(0, 1)
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#define ARDUINO_PIN_15 GPIO_PIN(0, 2)
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#define ARDUINO_PIN_16 GPIO_PIN(0, 3)
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#define ARDUINO_PIN_17 GPIO_PIN(0, 4)
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#define ARDUINO_PIN_18 GPIO_PIN(0, 5)
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#define ARDUINO_PIN_19 GPIO_PIN(0, 6)
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#define ARDUINO_PIN_LAST 19
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/** @} */
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/**
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* @name Aliases for analog pins
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* @{
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*/
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#define ARDUINO_PIN_A0 ARDUINO_PIN_14
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#define ARDUINO_PIN_A1 ARDUINO_PIN_15
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#define ARDUINO_PIN_A2 ARDUINO_PIN_16
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#define ARDUINO_PIN_A3 ARDUINO_PIN_17
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#define ARDUINO_PIN_A4 ARDUINO_PIN_18
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#define ARDUINO_PIN_A5 ARDUINO_PIN_19
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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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#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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@ -73,6 +73,30 @@ static const i2c_conf_t i2c_config[] = {
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#define I2C_NUMOF ARRAY_SIZE(i2c_config)
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/** @} */
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/**
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* @name ADC configuration
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*
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* The ADC channels have a fixed mapping:
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*
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* | Channel | MCU Pin | Arduino pin on board |
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* |:---------- |:--------- |:------------------------------------- |
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* | AIN0 | P0.26 | -- (exposed, by no Arduino UNO pin) |
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* | AIN1 | P0.27 | -- (exposed, by no Arduino UNO pin) |
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* | AIN2 | P0.01 | A0 |
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* | AIN3 | P0.02 | A1 |
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* | AIN4 | P0.03 | A2 |
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* | AIN5 | P0.04 | A3 |
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* | AIN6 | P0.05 | A4 |
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* | AIN7 | P0.06 | A5 |
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*
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* Expose those on Arduino pins A0 to A5
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* @{
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*/
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static const adc_conf_t adc_config[] = {2, 3, 4, 5, 6, 7};
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#define ADC_NUMOF ARRAY_SIZE(adc_config)
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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