periph_conf.h
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/*
* Copyright (C) 2014-2016 Freie Universität Berlin
* 2014 Hinnerk van Bruinehsen
*
* 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_arduino-mega2560
* @{
*
* @file
* @brief Peripheral MCU configuration for the Arduino Mega 2560 board
*
* @author Hinnerk van Bruinehsen <h.v.bruinehsen@fu-berlin.de>
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*/
#ifndef PERIPH_CONF_H_
#define PERIPH_CONF_H_
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Clock configuration
* @{
*/
#define CLOCK_CORECLOCK (16000000L)
/** @} */
/**
* @brief Timer configuration
*
* The timer driver only supports the four 16-bit timers (Timer1, Timer3,
* Timer4, Timer5), so those are the only onces we can use here.
*
* @{
*/
#define TIMER_NUMOF (2U)
#define TIMER_0 MEGA_TIMER1
#define TIMER_0_MASK &TIMSK1
#define TIMER_0_FLAG &TIFR1
#define TIMER_0_ISRA TIMER1_COMPA_vect
#define TIMER_0_ISRB TIMER1_COMPB_vect
#define TIMER_0_ISRC TIMER1_COMPC_vect
#define TIMER_1 MEGA_TIMER4
#define TIMER_1_MASK &TIMSK4
#define TIMER_1_FLAG &TIFR4
#define TIMER_1_ISRA TIMER4_COMPA_vect
#define TIMER_1_ISRB TIMER4_COMPB_vect
#define TIMER_1_ISRC TIMER4_COMPC_vect
/** @} */
/**
* @brief UART configuration
*
* The UART devices have fixed pin mappings, so all we need to do, is to specify
* which devices we would like to use and their corresponding RX interrupts. See
* the reference manual for the fixed pin mapping.
*
* @{
*/
#define UART_NUMOF (4U)
#define UART_0 MEGA_UART0
#define UART_0_ISR USART0_RX_vect
#define UART_1 MEGA_UART1
#define UART_1_ISR USART1_RX_vect
#define UART_2 MEGA_UART2
#define UART_2_ISR USART2_RX_vect
#define UART_3 MEGA_UART3
#define UART_3_ISR USART3_RX_vect
/** @} */
/**
* @brief SPI configuration
*
* The atmega2560 has only one hardware SPI with fixed pin configuration, so all
* we can do here, is to enable or disable it...
*
* The fixed pins used, are:
* MOSI - PB2 (Arduino pin 51)
* MISO - PB3 (Arduino pin 50)
* SCK - PB1 (Arduino pin 52)
* SS - PB0 (Arduino pin 53) -> this pin is configured as output, but not used
*
* @{
*/
#define SPI_NUMOF 1 /* set to 0 to disable SPI */
#define SPI_0_EN 1 /* remove once SPI rework is done */
#define MEGA_PRR PRR0 /* Power Reduction Register is PRR0 */
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* PERIPH_CONF_H_ */