1 /*********************************************************************************************************************** 2 * Copyright [2020-2022] Renesas Electronics Corporation and/or its affiliates. All Rights Reserved. 3 * 4 * This software and documentation are supplied by Renesas Electronics America Inc. and may only be used with products 5 * of Renesas Electronics Corp. and its affiliates ("Renesas"). No other uses are authorized. Renesas products are 6 * sold pursuant to Renesas terms and conditions of sale. Purchasers are solely responsible for the selection and use 7 * of Renesas products and Renesas assumes no liability. No license, express or implied, to any intellectual property 8 * right is granted by Renesas. This software is protected under all applicable laws, including copyright laws. Renesas 9 * reserves the right to change or discontinue this software and/or this documentation. THE SOFTWARE AND DOCUMENTATION 10 * IS DELIVERED TO YOU "AS IS," AND RENESAS MAKES NO REPRESENTATIONS OR WARRANTIES, AND TO THE FULLEST EXTENT 11 * PERMISSIBLE UNDER APPLICABLE LAW, DISCLAIMS ALL WARRANTIES, WHETHER EXPLICITLY OR IMPLICITLY, INCLUDING WARRANTIES 12 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT, WITH RESPECT TO THE SOFTWARE OR 13 * DOCUMENTATION. RENESAS SHALL HAVE NO LIABILITY ARISING OUT OF ANY SECURITY VULNERABILITY OR BREACH. TO THE MAXIMUM 14 * EXTENT PERMITTED BY LAW, IN NO EVENT WILL RENESAS BE LIABLE TO YOU IN CONNECTION WITH THE SOFTWARE OR DOCUMENTATION 15 * (OR ANY PERSON OR ENTITY CLAIMING RIGHTS DERIVED FROM YOU) FOR ANY LOSS, DAMAGES, OR CLAIMS WHATSOEVER, INCLUDING, 16 * WITHOUT LIMITATION, ANY DIRECT, CONSEQUENTIAL, SPECIAL, INDIRECT, PUNITIVE, OR INCIDENTAL DAMAGES; ANY LOST PROFITS, 17 * OTHER ECONOMIC DAMAGE, PROPERTY DAMAGE, OR PERSONAL INJURY; AND EVEN IF RENESAS HAS BEEN ADVISED OF THE POSSIBILITY 18 * OF SUCH LOSS, DAMAGES, CLAIMS OR COSTS. 19 **********************************************************************************************************************/ 20 21 #ifndef SYSTEM_RENESAS_ARM_H 22 #define SYSTEM_RENESAS_ARM_H 23 24 #ifdef __cplusplus 25 extern "C" { 26 #endif 27 28 #include <stdint.h> 29 30 extern uint32_t SystemCoreClock; /** System Clock Frequency (Core Clock) */ 31 32 /** 33 * Initialize the system 34 * 35 * @param none 36 * @return none 37 * 38 * @brief Setup the microcontroller system. 39 * Initialize the System and update the SystemCoreClock variable. 40 */ 41 extern void SystemInit(void); 42 43 /** 44 * Update SystemCoreClock variable 45 * 46 * @param none 47 * @return none 48 * 49 * @brief Updates the SystemCoreClock with current core Clock 50 * retrieved from cpu registers. 51 */ 52 extern void SystemCoreClockUpdate(void); 53 54 #ifdef __cplusplus 55 } 56 #endif 57 58 #endif 59