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Diffstat (limited to 'Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/RTE/Device/ARMCM4_FP/system_ARMCM4.c')
-rw-r--r--Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/RTE/Device/ARMCM4_FP/system_ARMCM4.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/RTE/Device/ARMCM4_FP/system_ARMCM4.c b/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/RTE/Device/ARMCM4_FP/system_ARMCM4.c
new file mode 100644
index 000000000..731facdde
--- /dev/null
+++ b/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/RTE/Device/ARMCM4_FP/system_ARMCM4.c
@@ -0,0 +1,83 @@
+/**************************************************************************//**
+ * @file system_ARMCM4.c
+ * @brief CMSIS Device System Source File for
+ * ARMCM4 Device
+ * @version V5.3.1
+ * @date 09. July 2018
+ ******************************************************************************/
+/*
+ * Copyright (c) 2009-2018 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 (ARMCM4)
+ #include "ARMCM4.h"
+#elif defined (ARMCM4_FP)
+ #include "ARMCM4_FP.h"
+#else
+ #error device not specified!
+#endif
+
+/*----------------------------------------------------------------------------
+ Define clocks
+ *----------------------------------------------------------------------------*/
+#define XTAL (50000000UL) /* Oscillator frequency */
+
+#define SYSTEM_CLOCK (XTAL / 2U)
+
+
+/*----------------------------------------------------------------------------
+ Externals
+ *----------------------------------------------------------------------------*/
+#if defined (__VTOR_PRESENT) && (__VTOR_PRESENT == 1U)
+ extern uint32_t __Vectors;
+#endif
+
+/*----------------------------------------------------------------------------
+ System Core Clock Variable
+ *----------------------------------------------------------------------------*/
+uint32_t SystemCoreClock = SYSTEM_CLOCK; /* System Core Clock Frequency */
+
+
+/*----------------------------------------------------------------------------
+ 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) &__Vectors;
+#endif
+
+#if defined (__FPU_USED) && (__FPU_USED == 1U)
+ 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
+
+ SystemCoreClock = SYSTEM_CLOCK;
+}