nuttx/boards/arm/nrf52/nrf52840-dk/include/board.h

/****************************************************************************
 * boards/arm/nrf52/nrf52840-dk/include/board.h
 *
 *   Copyright (C) 2019 Gregory Nutt. All rights reserved.
 *   Author: Mateusz Szafoni <raiden00@railab.me>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name NuttX nor the names of its contributors may be
 *    used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 ****************************************************************************/

#ifndef __BOARDS_ARM_NRF52_NRF52840_DK_INCLUDE_BOARD_H
#define __BOARDS_ARM_NRF52_NRF52840_DK_INCLUDE_BOARD_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>
#include <stdbool.h>

#if defined(CONFIG_ARCH_IRQBUTTONS) && defined(CONFIG_NRF52_GPIOTE)
#  include <nuttx/irq.h>
#endif

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

/* Clocking ****************************************************************/

#define BOARD_SYSTICK_CLOCK         (64000000)

/* LED definitions *********************************************************/

/* A low output illuminates the LED.
 *
 * LED index values for use with board_userled()
 */

#define BOARD_LED1        0
#define BOARD_LED2        1
#define BOARD_LED3        2
#define BOARD_LED4        3
#define BOARD_NLEDS       4

/* LED bits for use with board_userled_all() */

#define BOARD_LED1_BIT    (1 << BOARD_LED1)
#define BOARD_LED2_BIT    (1 << BOARD_LED2)
#define BOARD_LED3_BIT    (1 << BOARD_LED3)
#define BOARD_LED4_BIT    (1 << BOARD_LED4)

/* If CONFIG_ARCH_LEDS is defined, the LED will be controlled as follows
 * for NuttX debug functionality (where NC means "No Change").
 */

#define LED_STARTED                0  /* OFF      */
#define LED_HEAPALLOCATE           0  /* OFF      */
#define LED_IRQSENABLED            0  /* OFF      */
#define LED_STACKCREATED           1  /* ON       */
#define LED_INIRQ                  2  /* NC       */
#define LED_SIGNAL                 2  /* NC       */
#define LED_ASSERTION              2  /* NC       */
#define LED_PANIC                  3  /* Flashing */

/* If CONFIG_ARCH_LEDS is not defined, then the LEDs are completely under
 * control of the application.  The following interfaces are then available
 * for application control of the LEDs:
 *
 *  void board_userled_initialize(void);
 *  void board_userled(int led, bool ledon);
 *  void board_userled_all(uint8_t ledset);
 */

/* Button definitions *******************************************************/

/* Board supports four buttons. */

#define BUTTON_BTN1       0
#define BUTTON_BTN2       1
#define BUTTON_BTN3       2
#define BUTTON_BTN4       3
#define NUM_BUTTONS       4

#define BUTTON_BTN1_BIT  (1 << BUTTON_BTN1)
#define BUTTON_BTN2_BIT  (1 << BUTTON_BTN2)
#define BUTTON_BTN3_BIT  (1 << BUTTON_BTN3)
#define BUTTON_BTN4_BIT  (1 << BUTTON_BTN4)

/* UART Pins ****************************************************************/

/* UART0 is connected to the virtual COM port:
 *   UART0_RX - P0-8
 *   UART0_TX - P0-6
 */

#define BOARD_UART0_RX_PIN  (GPIO_INPUT  | GPIO_PORT0 | GPIO_PIN(8))
#define BOARD_UART0_TX_PIN  (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT0 | GPIO_PIN(6))

/* UART1
 *   UART1_RX - P1.1
 *   UART1_TX - P1.2
 */

#define BOARD_UART1_RX_PIN  (GPIO_INPUT  | GPIO_PORT1 | GPIO_PIN(1))
#define BOARD_UART1_TX_PIN  (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT1 | GPIO_PIN(2))

/* SPI Pins *****************************************************************/

/* SPI0 - Arduino PINs
 *   SPI0_SCK  - P1.15 (P13)
 *   SPI0_MOSI - P1.13 (D11)
 *   SPI0_MISO - P1.14 (D12)
 */

#define BOARD_SPI0_SCK_PIN  (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT1 | GPIO_PIN(15))
#define BOARD_SPI0_MOSI_PIN (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN(13))
#define BOARD_SPI0_MISO_PIN (GPIO_INPUT  | GPIO_PORT1 | GPIO_PIN(14))

/* I2C Pins *****************************************************************/

/* I2C0 (TWI0) - Arduino PINs
 *    I2C0_SCL - P0.27
 *    I2C0_SDA - P0.26
 */

#define BOARD_I2C0_SCL_PIN (GPIO_OUTPUT | GPIO_PORT0 | GPIO_PIN(27))
#define BOARD_I2C0_SDA_PIN (GPIO_INPUT  | GPIO_PORT0 | GPIO_PIN(26))

#endif /* __BOARDS_ARM_NRF52_NRF52840_DK_INCLUDE_BOARD_H */