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73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/*
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* Copyright (C) 2015-2017 Freie Universität Berlin
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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 cpu_nrf52
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* @{
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*
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* @file
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* @brief nRF52 specific definitions for handling peripherals
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*
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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*/
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#ifndef PERIPH_CPU_H
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#define PERIPH_CPU_H
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#include "periph_cpu_common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief System core clock speed, fixed to 64MHz for all NRF52x CPUs
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*/
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#define CLOCK_CORECLOCK (64000000U)
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/**
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* @brief Redefine some peripheral names to unify them between nRF51 and 52
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* @{
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*/
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#define UART_IRQN (UARTE0_UART0_IRQn)
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#define SPI_SCKSEL (dev(bus)->PSEL.SCK)
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#define SPI_MOSISEL (dev(bus)->PSEL.MOSI)
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#define SPI_MISOSEL (dev(bus)->PSEL.MISO)
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/** @} */
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/**
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* @brief Override ADC resolution values
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* @{
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*/
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#define HAVE_ADC_RES_T
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typedef enum {
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ADC_RES_6BIT = 0xf0, /**< not supported by hardware */
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ADC_RES_8BIT = 0x00, /**< ADC resolution: 8 bit */
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ADC_RES_10BIT = 0x01, /**< ADC resolution: 10 bit */
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ADC_RES_12BIT = 0x02, /**< ADC resolution: 12 bit */
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ADC_RES_14BIT = 0xf1, /**< supported with oversampling */
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ADC_RES_16BIT = 0xf2 /**< not supported by hardware */
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} adc_res_t;
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/** @} */
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/**
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* @name ADC configuration, valid for all boards using this CPU
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*
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* The NRF52832 has a fixed mapping of ADC pins and a fixed number of ADC channels,
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* so this ADC configuration is valid for all boards using this CPU. No need for
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* any board specific configuration.
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*/
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#define ADC_NUMOF (8U)
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#ifdef __cplusplus
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}
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#endif
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#endif /* PERIPH_CPU_H */
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/** @} */
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