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Diff: targets/TARGET_STM/TARGET_STM32F7/mbed_overrides.c
- Revision:
- 149:156823d33999
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/TARGET_STM/TARGET_STM32F7/mbed_overrides.c Fri Oct 28 11:17:30 2016 +0100 @@ -0,0 +1,58 @@ +/* mbed Microcontroller Library + * Copyright (c) 2015, STMicroelectronics + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#include "cmsis.h" +#include "us_ticker_api.h" + +HAL_StatusTypeDef HAL_Init(void); + +// This function is called after RAM initialization and before main. +void mbed_sdk_init() +{ + // Update the SystemCoreClock variable. + SystemCoreClockUpdate(); +#if !defined(TOOLCHAIN_GCC_ARM) + // Need to restart HAL driver after the RAM is initialized + HAL_Init(); +#endif +} + + +/** + * @brief This function provides accurate delay (in milliseconds) based + * on variable incremented. + * @note This function is the modified version of the __weak version contained in + * stm32f7xx_hal.c, using us_ticker + * @param Delay: specifies the delay time length, in milliseconds. + * @retval None +*/ +void HAL_Delay(__IO uint32_t Delay) +{ + uint32_t start = us_ticker_read(); + while ((us_ticker_read() - start) < (uint32_t)(Delay * 1000)); +} +