mirror of https://github.com/ARMmbed/mbed-os.git
54 lines
2.3 KiB
C
54 lines
2.3 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2014, STMicroelectronics
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "cmsis.h"
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#include "us_ticker_api.h"
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// This function is called after RAM initialization and before main.
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void mbed_sdk_init()
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{
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// Update the SystemCoreClock variable.
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SystemCoreClockUpdate();
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// Need to restart HAL driver after the RAM is initialized
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HAL_Init();
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}
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/**
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* @brief This function provides accurate delay (in milliseconds) based
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* on variable incremented.
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* @note This function is the modified version of the __weak version contained in
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* stm32f4xx_hal.c, using us_ticker
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* @param Delay: specifies the delay time length, in milliseconds.
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* @retval None
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*/
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void HAL_Delay(__IO uint32_t Delay)
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{
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uint32_t start = us_ticker_read();
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while ((us_ticker_read() - start) < (uint32_t)(Delay * 1000));
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}
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