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/*
* Copyright (C) 2016 Freie Universitรคt 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.
*/
/**
* @ingroup boards_microbit
* @{
*
* @file
* @brief Peripheral configuration for the BBC micro:bit
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*/
#ifndef PERIPH_CONF_H
#define PERIPH_CONF_H
#include "periph_cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @name Clock configuration
*
* @note The radio will not work with the internal RC oscillator!
*
* @{
*/
#define CLOCK_CORECLOCK (16000000U) /* fixed for all NRF51822 */
#define CLOCK_CRYSTAL (0U) /* set to 0: internal RC oscillator
16: 16MHz crystal
32: 32MHz crystal */
/** @} */
/**
* @name Timer configuration
* @{
*/
static const timer_conf_t timer_config[] = {
{
.dev = NRF_TIMER0,
.channels = 3,
.bitmode = TIMER_BITMODE_BITMODE_24Bit,
.irqn = TIMER0_IRQn
},
{
.dev = NRF_TIMER1,
.channels = 3,
.bitmode = TIMER_BITMODE_BITMODE_16Bit,
.irqn = TIMER1_IRQn
},
{
.dev = NRF_TIMER2,
.channels = 3,
.bitmode = TIMER_BITMODE_BITMODE_16Bit,
.irqn = TIMER2_IRQn
}
};
#define TIMER_0_ISR isr_timer0
#define TIMER_1_ISR isr_timer1
#define TIMER_2_ISR isr_timer2
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**
* @name Real time counter configuration
* @{
*/
#define RTT_NUMOF (1U)
#define RTT_IRQ_PRIO 1
#define RTT_DEV NRF_RTC1
#define RTT_IRQ RTC1_IRQn
#define RTT_ISR isr_rtc1
#define RTT_MAX_VALUE (0xffffff)
#define RTT_FREQUENCY (10) /* in Hz */
#define RTT_PRESCALER (3275U) /* run with 10 Hz */
/** @} */
/**
* @brief UART configuration
* @{
*/
#define UART_NUMOF (1U)
/* UART pin configuration */
#define UART_HWFLOWCTRL 0
#define UART_PIN_RX 25
#define UART_PIN_TX 24
/** @} */
/**
* @brief ADC configuration
*
* The configuration consists simply of a list of channels that should be used
* @{
*/
#define ADC_NUMOF (0)
/** @} */
/**
* @brief Radio device configuration
*
* The radio is not guarded by a NUMOF define, as the radio is selected by its
* own module in the build system.
* @{
*/
#define RADIO_IRQ_PRIO 1
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* PERIPH_CONF_H */
/** @} */
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