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https://github.com/RIOT-OS/RIOT.git
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Koen Zandberg
64f04e4da9
The internal DC/DC converter is more efficient compared to the LDO regulator. The downside of the DC/DC converter is that it requires an external inductor to be present on the board. Enabling the DC/DC converter is guarded with NRF5X_ENABLE_DCDC, this macro must be defined if the DC/DC converter is to be enabled.
43 lines
966 B
C
43 lines
966 B
C
/*
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* Copyright (C) 2014 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser General
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* Public License v2.1. See the file LICENSE in the top level directory for more
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* details.
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*/
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/**
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* @ingroup cpu_nrf51
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* @{
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*
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* @file
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* @brief Implementation of the CPU initialization
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*
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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* @}
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*/
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#include "cpu.h"
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#include "nrf_clock.h"
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#include "nrfx.h"
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#include "periph_conf.h"
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#include "periph/init.h"
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#include "stdio_base.h"
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/**
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* @brief Initialize the CPU, set IRQ priorities
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*/
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void cpu_init(void)
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{
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/* initialize the Cortex-M core */
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cortexm_init();
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/* Enable the DC/DC power converter */
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nrfx_dcdc_init();
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/* setup the HF clock */
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clock_init_hf();
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/* initialize stdio prior to periph_init() to allow use of DEBUG() there */
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stdio_init();
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/* trigger static peripheral initialization */
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periph_init();
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}
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