/** ****************************************************************************** * @file stm32f4xx_hal_rng.h * @author MCD Application Team * @version V1.4.1 * @date 09-October-2015 * @brief Header file of RNG HAL module. ****************************************************************************** * @attention * *

© COPYRIGHT(c) 2015 STMicroelectronics

* * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32F4xx_HAL_RNG_H #define __STM32F4xx_HAL_RNG_H #ifdef __cplusplus extern "C" { #endif #if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) ||\ defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\ defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F469xx) ||\ defined(STM32F479xx) /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx_hal_def.h" /** @addtogroup STM32F4xx_HAL_Driver * @{ */ /** @defgroup RNG RNG * @brief RNG HAL module driver * @{ */ /* Exported types ------------------------------------------------------------*/ /** @defgroup RNG_Exported_Types RNG Exported Types * @{ */ /** @defgroup RNG_Exported_Types_Group1 RNG State Structure definition * @{ */ typedef enum { HAL_RNG_STATE_RESET = 0x00, /*!< RNG not yet initialized or disabled */ HAL_RNG_STATE_READY = 0x01, /*!< RNG initialized and ready for use */ HAL_RNG_STATE_BUSY = 0x02, /*!< RNG internal process is ongoing */ HAL_RNG_STATE_TIMEOUT = 0x03, /*!< RNG timeout state */ HAL_RNG_STATE_ERROR = 0x04 /*!< RNG error state */ }HAL_RNG_StateTypeDef; /** * @} */ /** @defgroup RNG_Exported_Types_Group2 RNG Handle Structure definition * @{ */ typedef struct { RNG_TypeDef *Instance; /*!< Register base address */ HAL_LockTypeDef Lock; /*!< RNG locking object */ __IO HAL_RNG_StateTypeDef State; /*!< RNG communication state */ uint32_t RandomNumber; /*!< Last Generated RNG Data */ }RNG_HandleTypeDef; /** * @} */ /** * @} */ /* Exported constants --------------------------------------------------------*/ /** @defgroup RNG_Exported_Constants RNG Exported Constants * @{ */ /** @defgroup RNG_Exported_Constants_Group1 RNG Interrupt definition * @{ */ #define RNG_IT_DRDY RNG_SR_DRDY /*!< Data Ready interrupt */ #define RNG_IT_CEI RNG_SR_CEIS /*!< Clock error interrupt */ #define RNG_IT_SEI RNG_SR_SEIS /*!< Seed error interrupt */ /** * @} */ /** @defgroup RNG_Exported_Constants_Group2 RNG Flag definition * @{ */ #define RNG_FLAG_DRDY RNG_SR_DRDY /*!< Data ready */ #define RNG_FLAG_CECS RNG_SR_CECS /*!< Clock error current status */ #define RNG_FLAG_SECS RNG_SR_SECS /*!< Seed error current status */ /** * @} */ /** * @} */ /* Exported macros -----------------------------------------------------------*/ /** @defgroup RNG_Exported_Macros RNG Exported Macros * @{ */ /** @brief Reset RNG handle state * @param __HANDLE__: RNG Handle * @retval None */ #define __HAL_RNG_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_RNG_STATE_RESET) /** * @brief Enables the RNG peripheral. * @param __HANDLE__: RNG Handle * @retval None */ #define __HAL_RNG_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR |= RNG_CR_RNGEN) /** * @brief Disables the RNG peripheral. * @param __HANDLE__: RNG Handle * @retval None */ #define __HAL_RNG_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~RNG_CR_RNGEN) /** * @brief Check the selected RNG flag status. * @param __HANDLE__: RNG Handle * @param __FLAG__: RNG flag * This parameter can be one of the following values: * @arg RNG_FLAG_DRDY: Data ready * @arg RNG_FLAG_CECS: Clock error current status * @arg RNG_FLAG_SECS: Seed error current status * @retval The new state of __FLAG__ (SET or RESET). */ #define __HAL_RNG_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__)) /** * @brief Clears the selected RNG flag status. * @param __HANDLE__: RNG handle * @param __FLAG__: RNG flag to clear * @note WARNING: This is a dummy macro for HAL code alignment, * flags RNG_FLAG_DRDY, RNG_FLAG_CECS and RNG_FLAG_SECS are read-only. * @retval None */ #define __HAL_RNG_CLEAR_FLAG(__HANDLE__, __FLAG__) /* dummy macro */ /** * @brief Enables the RNG interrupts. * @param __HANDLE__: RNG Handle * @retval None */ #define __HAL_RNG_ENABLE_IT(__HANDLE__) ((__HANDLE__)->Instance->CR |= RNG_CR_IE) /** * @brief Disables the RNG interrupts. * @param __HANDLE__: RNG Handle * @retval None */ #define __HAL_RNG_DISABLE_IT(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~RNG_CR_IE) /** * @brief Checks whether the specified RNG interrupt has occurred or not. * @param __HANDLE__: RNG Handle * @param __INTERRUPT__: specifies the RNG interrupt status flag to check. * This parameter can be one of the following values: * @arg RNG_IT_DRDY: Data ready interrupt * @arg RNG_IT_CEI: Clock error interrupt * @arg RNG_IT_SEI: Seed error interrupt * @retval The new state of __INTERRUPT__ (SET or RESET). */ #define __HAL_RNG_GET_IT(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->SR & (__INTERRUPT__)) == (__INTERRUPT__)) /** * @brief Clear the RNG interrupt status flags. * @param __HANDLE__: RNG Handle * @param __INTERRUPT__: specifies the RNG interrupt status flag to clear
/* mbed Microcontroller Library
 * CMSIS-style functionality to support dynamic vectors
 *******************************************************************************
 * Copyright (c) 2014, STMicroelectronics
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. Neither the name of STMicroelectronics nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *******************************************************************************
 */ 
#include "cmsis_nvic.h"

#define NVIC_RAM_VECTOR_ADDRESS   (0x20000000)  // Vectors positioned at start of RAM
#define NVIC_FLASH_VECTOR_ADDRESS (0x08000000)  // Initial vector position in flash

void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
    uint32_t *vectors = (uint32_t *)SCB->VTOR;
    uint32_t i;

    // Copy and switch to dynamic vectors if the first time called
    if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) {
        uint32_t *old_vectors = vectors;
        vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
        for (i=0; i<NVIC_NUM_VECTORS; i++) {
            vectors[i] = old_vectors[i];
        }
        SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
    }
    vectors[IRQn + NVIC_USER_IRQ_OFFSET] = vector;
}

uint32_t NVIC_GetVector(IRQn_Type IRQn) {
    uint32_t *vectors = (uint32_t*)SCB->VTOR;
    return vectors[IRQn + NVIC_USER_IRQ_OFFSET];
}
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