periph_conf_atmega_common.h

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/*
 * Copyright (C) 2014 Freie Universität Berlin, Hinnerk van Bruinehsen
 *               2016 Laurent Navet <laurent.navet@gmail.com>
 *               2016 RWTH Aachen, Josua Arndt
 *               2016 INRIA, Francisco Acosta
 *               2017 HAW Hamburg, Dimitri Nahm
 *               2018 Matthew Blue <matthew.blue.neuro@gmail.com>
 *               2019 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.
 */
 
#ifndef PERIPH_CONF_ATMEGA_COMMON_H
#define PERIPH_CONF_ATMEGA_COMMON_H
 
#include "periph_cpu.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#ifndef CLOCK_CORECLOCK
#define CLOCK_CORECLOCK     (16000000UL)
#endif /* CLOCK_CORECLOCK */
 
#ifndef UART_NUMOF
#if defined(CPU_ATMEGA128RFA1) || defined(CPU_ATMEGA256RFR2) || \
    defined(CPU_ATMEGA1281) || defined(CPU_ATMEGA1284P) || defined(CPU_ATMEGA2560)
    #define UART_NUMOF          (2U)
 
    /* UART0 is used for stdio */
    #define UART_0              MEGA_UART0
    #define UART_0_ISR          USART0_RX_vect
    #define UART_0_ISR_TX       USART0_TX_vect
 
    #define UART_1              MEGA_UART1
    #define UART_1_ISR          USART1_RX_vect
    #define UART_1_ISR_TX       USART1_TX_vect
#elif defined(CPU_ATMEGA328P)
    #define UART_NUMOF          (1U)
 
    #define UART_0              MEGA_UART0
    #define UART_0_ISR          USART_RX_vect
    #define UART_0_ISR_TX       USART_TX_vect
#elif defined(CPU_ATMEGA32U4)
    #define UART_NUMOF          (1U)
 
    #define UART_0              MEGA_UART1
    #define UART_0_ISR          USART1_RX_vect
    #define UART_0_ISR_TX       USART1_TX_vect
#else
    #define UART_NUMOF          (0U)
#endif
#endif /* UART_NUMOF */
 
#ifndef SPI_NUMOF
#define SPI_NUMOF               (1U)
#endif /* SPI_NUMOF */
 
#ifndef I2C_NUMOF
#define I2C_BUS_SPEED           I2C_SPEED_FAST
#define I2C_NUMOF               (1U)
#endif /* I2C_NUMOF */
 
#ifndef ADC_NUMOF
#if defined(CPU_ATMEGA128RFA1) || defined(CPU_ATMEGA256RFR2) || defined(CPU_ATMEGA328P) ||  \
    defined(CPU_ATMEGA1281) || defined(CPU_ATMEGA1284P) || defined(CPU_ATMEGA32U4)
    #define ADC_NUMOF           (8U)
#elif defined (CPU_ATMEGA2560)
    #define ADC_NUMOF           (16U)
#else
    #define ADC_NUMOF           (0U)
#endif
#endif /* ADC_NUMOF */
 
#ifndef PWM_NUMOF
#if defined(CPU_ATMEGA328P)
    #define PWM_PINS_CH0 { GPIO_PIN(PORT_D, 6), GPIO_PIN(PORT_D, 5) }
    #define PWM_PINS_CH1 { GPIO_PIN(PORT_B, 3), GPIO_PIN(PORT_D, 3) }
#elif defined(CPU_ATMEGA1281)
    #define PWM_PINS_CH0 { GPIO_PIN(PORT_B, 7), GPIO_PIN(PORT_G, 5) }
    #define PWM_PINS_CH1 { GPIO_PIN(PORT_B, 4), GPIO_UNDEF }
#elif defined(CPU_ATMEGA1284P)
    #define PWM_PINS_CH0 { GPIO_PIN(PORT_B, 3), GPIO_PIN(PORT_B, 4) }
    #define PWM_PINS_CH1 { GPIO_PIN(PORT_D, 7), GPIO_PIN(PORT_D, 6) }
#elif defined(CPU_ATMEGA2560)
    #define PWM_PINS_CH0 { GPIO_PIN(PORT_B, 7), GPIO_PIN(PORT_G, 5) }
    #define PWM_PINS_CH1 { GPIO_PIN(PORT_B, 4), GPIO_PIN(PORT_H, 6) }
#elif defined(CPU_ATMEGA32U4)
    #define PWM_PINS_CH0 { GPIO_PIN(PORT_B, 7), GPIO_PIN(PORT_D, 0) }
#else
    #define PWM_NUMOF           (0U)
#endif
 
#if defined(CPU_ATMEGA32U4) || defined(CPU_ATMEGA328P) || \
    defined(CPU_ATMEGA1281) || defined(CPU_ATMEGA1284P) || \
    defined(CPU_ATMEGA2560)
    static const pwm_conf_t pwm_conf[] = {
        {
            .dev = MINI_TIMER0,
            .pin_ch = PWM_PINS_CH0,
            .div = MINI_TIMER0_DIV,
        },
#ifndef CPU_ATMEGA32U4
        {
            .dev = MINI_TIMER2,
            .pin_ch = PWM_PINS_CH1,
            .div = MINI_TIMER2_DIV,
        }
#endif
    };
 
    #define PWM_NUMOF           ARRAY_SIZE(pwm_conf)
#endif
#endif /* PWM_NUMOF */
 
#ifdef __cplusplus
}
#endif
 
#endif /* PERIPH_CONF_ATMEGA_COMMON_H */