| /**************************************************************************//** |
| * @file system_ARMCM55.c |
| * @brief CMSIS Device System Source File for |
| * ARMCM55 Device |
| * @version V1.0.0 |
| * @date 23. March 2020 |
| ******************************************************************************/ |
| /* |
| * Copyright (c) 2009-2020 Arm Limited. All rights reserved. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| * |
| * Licensed under the Apache License, Version 2.0 (the License); you may |
| * not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an AS IS BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #if defined (ARMCM55) |
| #include "ARMCM55.h" |
| |
| #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U) |
| #include "partition_ARMCM55.h" |
| #endif |
| |
| #else |
| #error device not specified! |
| #endif |
| |
| /*---------------------------------------------------------------------------- |
| Define clocks |
| *----------------------------------------------------------------------------*/ |
| #define XTAL ( 5000000UL) /* Oscillator frequency */ |
| |
| #define SYSTEM_CLOCK (5U * XTAL) |
| |
| |
| /*---------------------------------------------------------------------------- |
| Exception / Interrupt Vector table |
| *----------------------------------------------------------------------------*/ |
| extern const VECTOR_TABLE_Type __VECTOR_TABLE[496]; |
| |
| |
| /*---------------------------------------------------------------------------- |
| System Core Clock Variable |
| *----------------------------------------------------------------------------*/ |
| uint32_t SystemCoreClock = SYSTEM_CLOCK; |
| |
| |
| /*---------------------------------------------------------------------------- |
| System Core Clock update function |
| *----------------------------------------------------------------------------*/ |
| void SystemCoreClockUpdate (void) |
| { |
| SystemCoreClock = SYSTEM_CLOCK; |
| } |
| |
| /*---------------------------------------------------------------------------- |
| System initialization function |
| *----------------------------------------------------------------------------*/ |
| void SystemInit (void) |
| { |
| |
| #if defined (__VTOR_PRESENT) && (__VTOR_PRESENT == 1U) |
| SCB->VTOR = (uint32_t)(&__VECTOR_TABLE[0]); |
| #endif |
| |
| #if (defined (__FPU_USED) && (__FPU_USED == 1U)) || \ |
| (defined (__ARM_FEATURE_MVE) && (__ARM_FEATURE_MVE > 0U)) |
| SCB->CPACR |= ((3U << 10U*2U) | /* enable CP10 Full Access */ |
| (3U << 11U*2U) ); /* enable CP11 Full Access */ |
| #endif |
| |
| #ifdef UNALIGNED_SUPPORT_DISABLE |
| SCB->CCR |= SCB_CCR_UNALIGN_TRP_Msk; |
| #endif |
| |
| #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U) |
| TZ_SAU_Setup(); |
| #endif |
| |
| SystemCoreClock = SYSTEM_CLOCK; |
| } |