98 lines
3.2 KiB
C
98 lines
3.2 KiB
C
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/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file STM32L1xx/hal_lld.c
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* @brief STM32L1xx HAL subsystem low level driver source.
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*
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* @addtogroup HAL
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* @{
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*/
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#include "ch.h"
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#include "hal.h"
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#define AIRCR_VECTKEY 0x05FA0000
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver interrupt handlers. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief Low level HAL driver initialization.
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*
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* @notapi
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*/
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void hal_lld_init(void) {
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/* Reset of all peripherals.*/
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RCC->APB1RSTR = 0xFFFFFFFF;
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RCC->APB2RSTR = 0xFFFFFFFF;
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RCC->APB1RSTR = 0;
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RCC->APB2RSTR = 0;
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/* SysTick initialization using the system clock.*/
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SysTick->LOAD = STM32_HCLK / CH_FREQUENCY - 1;
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SysTick->VAL = 0;
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SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
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SysTick_CTRL_ENABLE_Msk |
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SysTick_CTRL_TICKINT_Msk;
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#if defined(STM32_DMA_REQUIRED)
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dmaInit();
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#endif
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}
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/**
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* @brief STM32L1xx clocks and PLL initialization.
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* @note All the involved constants come from the file @p board.h.
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* @note This function must be invoked only after the system reset.
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*
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* @special
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*/
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#if defined(STM32L1XX_MD) || defined(__DOXYGEN__)
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/*
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* Clocks initialization for the LD, MD and HD sub-families.
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*/
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void stm32_clock_init(void) {
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}
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#else
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void stm32_clock_init(void) {}
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#endif
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/** @} */
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