001

Committer:
ganlikun
Date:
Sun Jun 12 14:02:44 2022 +0000
Revision:
0:13413ea9a877
00

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ganlikun 0:13413ea9a877 1 /* mbed Microcontroller Library
ganlikun 0:13413ea9a877 2 * Copyright (c) 2017, STMicroelectronics
ganlikun 0:13413ea9a877 3 * All rights reserved.
ganlikun 0:13413ea9a877 4 *
ganlikun 0:13413ea9a877 5 * Redistribution and use in source and binary forms, with or without
ganlikun 0:13413ea9a877 6 * modification, are permitted provided that the following conditions are met:
ganlikun 0:13413ea9a877 7 *
ganlikun 0:13413ea9a877 8 * 1. Redistributions of source code must retain the above copyright notice,
ganlikun 0:13413ea9a877 9 * this list of conditions and the following disclaimer.
ganlikun 0:13413ea9a877 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
ganlikun 0:13413ea9a877 11 * this list of conditions and the following disclaimer in the documentation
ganlikun 0:13413ea9a877 12 * and/or other materials provided with the distribution.
ganlikun 0:13413ea9a877 13 * 3. Neither the name of STMicroelectronics nor the names of its contributors
ganlikun 0:13413ea9a877 14 * may be used to endorse or promote products derived from this software
ganlikun 0:13413ea9a877 15 * without specific prior written permission.
ganlikun 0:13413ea9a877 16 *
ganlikun 0:13413ea9a877 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
ganlikun 0:13413ea9a877 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
ganlikun 0:13413ea9a877 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
ganlikun 0:13413ea9a877 20 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
ganlikun 0:13413ea9a877 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
ganlikun 0:13413ea9a877 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
ganlikun 0:13413ea9a877 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
ganlikun 0:13413ea9a877 24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
ganlikun 0:13413ea9a877 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
ganlikun 0:13413ea9a877 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ganlikun 0:13413ea9a877 27 */
ganlikun 0:13413ea9a877 28 #include "cmsis.h"
ganlikun 0:13413ea9a877 29
ganlikun 0:13413ea9a877 30 // This function is called after RAM initialization and before main.
ganlikun 0:13413ea9a877 31 void mbed_sdk_init()
ganlikun 0:13413ea9a877 32 {
ganlikun 0:13413ea9a877 33 // Update the SystemCoreClock variable.
ganlikun 0:13413ea9a877 34 SystemCoreClockUpdate();
ganlikun 0:13413ea9a877 35 HAL_Init();
ganlikun 0:13413ea9a877 36
ganlikun 0:13413ea9a877 37 #if TARGET_STM32F7
ganlikun 0:13413ea9a877 38 // Enable CPU L1-Cache
ganlikun 0:13413ea9a877 39 SCB_EnableICache();
ganlikun 0:13413ea9a877 40 SCB_EnableDCache();
ganlikun 0:13413ea9a877 41 #endif /* TARGET_STM32F7 */
ganlikun 0:13413ea9a877 42
ganlikun 0:13413ea9a877 43 /* Configure the System clock source, PLL Multiplier and Divider factors,
ganlikun 0:13413ea9a877 44 AHB/APBx prescalers and Flash settings */
ganlikun 0:13413ea9a877 45 SetSysClock();
ganlikun 0:13413ea9a877 46 SystemCoreClockUpdate();
ganlikun 0:13413ea9a877 47 }
ganlikun 0:13413ea9a877 48