initial commit: oled, rc522, exti

Drivers/CMSIS/Device/ST/STM32F1xx/Include/system_stm32f1xx.h

@@ -0,0 +1,96 @@
+/**
+  ******************************************************************************
+  * @file    system_stm32f1xx.h
+  * @author  MCD Application Team
+  * @brief   CMSIS Cortex-M3 Device Peripheral Access Layer System Header File.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2017-2021 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+
+/** @addtogroup CMSIS
+  * @{
+  */
+
+/** @addtogroup stm32f10x_system
+  * @{
+  */  
+  
+/**
+  * @brief Define to prevent recursive inclusion
+  */
+#ifndef __SYSTEM_STM32F10X_H
+#define __SYSTEM_STM32F10X_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif 
+
+/** @addtogroup STM32F10x_System_Includes
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+
+/** @addtogroup STM32F10x_System_Exported_types
+  * @{
+  */
+
+extern uint32_t SystemCoreClock;          /*!< System Clock Frequency (Core Clock) */
+extern const uint8_t  AHBPrescTable[16U];  /*!< AHB prescalers table values */
+extern const uint8_t  APBPrescTable[8U];   /*!< APB prescalers table values */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F10x_System_Exported_Constants
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F10x_System_Exported_Macros
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F10x_System_Exported_Functions
+  * @{
+  */
+  
+extern void SystemInit(void);
+extern void SystemCoreClockUpdate(void);
+/**
+  * @}
+  */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*__SYSTEM_STM32F10X_H */
+
+/**
+  * @}
+  */
+  
+/**
+  * @}
+  */