mirror of
https://github.com/RIOT-OS/RIOT.git
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136 lines
3.5 KiB
C
136 lines
3.5 KiB
C
/*
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* Copyright (C) 2016 RWTH Aachen, Josua Arndt
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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_jiminy-mega256rfr2
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* @{
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*
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* @file
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* @brief Peripheral MCU configuration for the Jiminy Mega 256rfr2 board
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*
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* @author Josua Arndt <jarndt@ias.rwth-aachen.de>
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* @author Steffen Robertz <steffen.robertz@rwth-aachen.de>
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*/
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#ifndef PERIPH_CONF_H
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#define PERIPH_CONF_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <avr/io.h>
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#include "periph_cpu.h"
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#include "atmega_regs_common.h"
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#include "periph_cpu_common.h"
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/**
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* @name Clock configuration
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* @{
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*/
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#define CLOCK_CORECLOCK (8000000UL)
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/** @} */
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/**
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* @name Timer configuration
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*
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* ATTENTION RIOT Timer 0 is used for Xtimer which is system Timer
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*
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* The timer driver only supports the four 16-bit timers
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* (Timer1, TST, Timer3, Timer4, Timer5), so those are the Timer we can use here.
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* Timer 1, TST, PORT B5/6/7 Out, Port D4/6 In, Analog Comparator Input Capture, Output Compare Modulator, PWM
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* Timer 3, TST, PORT E3/4/5 Out, Port E/6/7 In, Input or Output Compare and PWM Output
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* Timer 4, TST, It can not be connected to any I/O Pin,
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* Timer 5, TST, It can not be connected to any I/O Pin,
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*
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* Using Atmel Timer 4 and 5 seems to be the best choice
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* Using Atmel Timer 4 as Xtimer
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* and Atmel Timer 5 as timer available for the the application seems to be the best choice,
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* as the special functions of the other timer are not lost.
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* Atmel Timer1 to be used as PWM timer for RGB LED
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* @{
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*/
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#define TIMER_NUMOF (3U)
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#define TIMER_0 MEGA_TIMER4
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#define TIMER_0_MASK &TIMSK4
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#define TIMER_0_FLAG &TIFR4
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#define TIMER_0_ISRA TIMER4_COMPA_vect
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#define TIMER_0_ISRB TIMER4_COMPB_vect
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#define TIMER_0_ISRC TIMER4_COMPC_vect
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#define TIMER_1 MEGA_TIMER5
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#define TIMER_1_MASK &TIMSK5
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#define TIMER_1_FLAG &TIFR5
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#define TIMER_1_ISRA TIMER5_COMPA_vect
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#define TIMER_1_ISRB TIMER5_COMPB_vect
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#define TIMER_1_ISRC TIMER5_COMPC_vect
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#define TIMER_2 MEGA_TIMER1
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#define TIMER_2_MASK &TIMSK1
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#define TIMER_2_FLAG &TIFR1
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#define TIMER_2_ISRA TIMER1_COMPA_vect
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#define TIMER_2_ISRB TIMER1_COMPB_vect
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#define TIMER_2_ISRC TIMER1_COMPC_vect
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/** @} */
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/**
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* @name UART configuration
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*
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* The UART devices have fixed pin mappings, so all we need to do, is to specify
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* which devices we would like to use and their corresponding RX interrupts. See
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* the reference manual for the fixed pin mapping.
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*
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* @{
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*/
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#define UART_NUMOF (2U)
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/* UART0 is used for stdio */
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#define UART_0 MEGA_UART0
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#define UART_0_ISR USART0_RX_vect
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#define UART_1 MEGA_UART1
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#define UART_1_ISR USART1_RX_vect
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/** @} */
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/**
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* @name SPI configuration
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*
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* The atmega256rfr has only one hardware SPI with fixed pin configuration, so all
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* we can do here, is to enable or disable it.
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*
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* PINS SS SCK MOSI MISO
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* PB0 PB1 PB2 PB3
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* @{
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*/
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#define SPI_NUMOF (1U) /* set to 0 to disable SPI */
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/** @} */
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/**
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* @name I2C configuration
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* @{
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*/
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#define I2C_BUS_SPEED I2C_SPEED_FAST
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#define I2C_NUMOF (1U)
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/** @} */
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/**
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* @name ADC Configuration
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* @{
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*/
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#define ADC_NUMOF (8U)
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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/** @} */
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#endif /* PERIPH_CONF_H */
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