periph_cpu.h

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/*
 * Copyright (C) 2015-2017 Freie Universität Berlin
 *
 * 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.
 */
 
#pragma once

 
#include "periph_cpu_common.h"
 
#ifdef __cplusplus
extern "C" {
#endif

#define CLOCK_CORECLOCK     (16000000U)

#define SPI_SCKSEL          (dev(bus)->PSELSCK)
#define SPI_MOSISEL         (dev(bus)->PSELMOSI)
#define SPI_MISOSEL         (dev(bus)->PSELMISO)
 
#ifndef DOXYGEN
#define HAVE_I2C_SPEED_T
typedef enum {
    I2C_SPEED_LOW       = 0x01,                         
    I2C_SPEED_NORMAL    = TWI_FREQUENCY_FREQUENCY_K100, 
    I2C_SPEED_FAST      = TWI_FREQUENCY_FREQUENCY_K400, 
    I2C_SPEED_FAST_PLUS = 0x02,                         
    I2C_SPEED_HIGH      = 0x03,                         
} i2c_speed_t;
#endif /* ndef DOXYGEN */

#define PERIPH_I2C_NEED_READ_REG
#define PERIPH_I2C_NEED_WRITE_REG
 
#ifndef DOXYGEN
#define HAVE_ADC_RES_T
typedef enum {
    ADC_RES_6BIT  = 0xf0,   
    ADC_RES_8BIT  = 0x00,   
    ADC_RES_10BIT = 0x02,   
    ADC_RES_12BIT = 0xf1,   
    ADC_RES_14BIT = 0xf2,   
    ADC_RES_16BIT = 0xf3    
} adc_res_t;
#endif /* ndef DOXYGEN */

typedef gpio_t adc_conf_t;

typedef struct {
    NRF_TWI_Type *dev;          
    gpio_t pin_scl;             
    gpio_t pin_sda;             
    uint8_t ppi;                
    i2c_speed_t speed;          
} i2c_conf_t;

typedef struct {
    NRF_SPI_Type *dev;  
    gpio_t sclk;        
    gpio_t mosi;        
    gpio_t miso;        
} spi_conf_t;
 
#ifdef __cplusplus
}
#endif