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ATTENTION: Last few commits are NOT working. forgot to add several files to git

makefile_for_cmsis
heck 2 years ago
parent
30fcad2496
commit
c76ee16b72
8 changed files with 1808 additions and 1 deletions
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  1. 52
      Core/Inc/dma.h
  2. 52
      Core/Inc/rng.h
  3. 2
      Core/Src/cppmain.cc
  4. 55
      Core/Src/dma.c
  5. 85
      Core/Src/rng.c
  6. 361
      Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_rng.h
  7. 335
      Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_rng.h
  8. 867
      Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rng.c

52
Core/Inc/dma.h
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@ -0,0 +1,52 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file dma.h
* @brief This file contains all the function prototypes for
* the dma.c file
******************************************************************************
* @attention
*
* Copyright (c) 2023 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.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __DMA_H__
#define __DMA_H__
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* DMA memory to memory transfer handles -------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* USER CODE BEGIN Private defines */
/* USER CODE END Private defines */
void MX_DMA_Init(void);
/* USER CODE BEGIN Prototypes */
/* USER CODE END Prototypes */
#ifdef __cplusplus
}
#endif
#endif /* __DMA_H__ */

52
Core/Inc/rng.h
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@ -0,0 +1,52 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file rng.h
* @brief This file contains all the function prototypes for
* the rng.c file
******************************************************************************
* @attention
*
* Copyright (c) 2023 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.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __RNG_H__
#define __RNG_H__
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
extern RNG_HandleTypeDef hrng;
/* USER CODE BEGIN Private defines */
/* USER CODE END Private defines */
void MX_RNG_Init(void);
/* USER CODE BEGIN Prototypes */
/* USER CODE END Prototypes */
#ifdef __cplusplus
}
#endif
#endif /* __RNG_H__ */

2
Core/Src/cppmain.cc
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@ -174,7 +174,7 @@ void heck_cppmain(void)
// HAL_DAC_Start(&hdac, DAC_CHANNEL_2);
HAL_TIM_Base_Start_IT(&htim2);
HAL_TIM_Base_Start_IT(&htim7);
HAL_RNG_GenerateRandomNumber(hrng)
HAL_TIM_Base_Start(&htim6);
while (true) {
Heck::log("huhu");

55
Core/Src/dma.c
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@ -0,0 +1,55 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file dma.c
* @brief This file provides code for the configuration
* of all the requested memory to memory DMA transfers.
******************************************************************************
* @attention
*
* Copyright (c) 2023 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.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "dma.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/*----------------------------------------------------------------------------*/
/* Configure DMA */
/*----------------------------------------------------------------------------*/
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/**
* Enable DMA controller clock
*/
void MX_DMA_Init(void)
{
/* DMA controller clock enable */
__HAL_RCC_DMA1_CLK_ENABLE();
/* DMA interrupt init */
/* DMA1_Stream5_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Stream5_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(DMA1_Stream5_IRQn);
}
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */

85
Core/Src/rng.c
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@ -0,0 +1,85 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file rng.c
* @brief This file provides code for the configuration
* of the RNG instances.
******************************************************************************
* @attention
*
* Copyright (c) 2023 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.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "rng.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
RNG_HandleTypeDef hrng;
/* RNG init function */
void MX_RNG_Init(void)
{
/* USER CODE BEGIN RNG_Init 0 */
/* USER CODE END RNG_Init 0 */
/* USER CODE BEGIN RNG_Init 1 */
/* USER CODE END RNG_Init 1 */
hrng.Instance = RNG;
if (HAL_RNG_Init(&hrng) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN RNG_Init 2 */
/* USER CODE END RNG_Init 2 */
}
void HAL_RNG_MspInit(RNG_HandleTypeDef* rngHandle)
{
if(rngHandle->Instance==RNG)
{
/* USER CODE BEGIN RNG_MspInit 0 */
/* USER CODE END RNG_MspInit 0 */
/* RNG clock enable */
__HAL_RCC_RNG_CLK_ENABLE();
/* USER CODE BEGIN RNG_MspInit 1 */
/* USER CODE END RNG_MspInit 1 */
}
}
void HAL_RNG_MspDeInit(RNG_HandleTypeDef* rngHandle)
{
if(rngHandle->Instance==RNG)
{
/* USER CODE BEGIN RNG_MspDeInit 0 */
/* USER CODE END RNG_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_RNG_CLK_DISABLE();
/* USER CODE BEGIN RNG_MspDeInit 1 */
/* USER CODE END RNG_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */

361
Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_rng.h
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@ -0,0 +1,361 @@
/**
******************************************************************************
* @file stm32f4xx_hal_rng.h
* @author MCD Application Team
* @brief Header file of RNG HAL module.
******************************************************************************
* @attention
*
* Copyright (c) 2016 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.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32F4xx_HAL_RNG_H
#define STM32F4xx_HAL_RNG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal_def.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{
*/
#if defined (RNG)
/** @defgroup RNG RNG
* @brief RNG HAL module driver
* @{
*/
/* Exported types ------------------------------------------------------------*/
/** @defgroup RNG_Exported_Types RNG Exported Types
* @{
*/
/** @defgroup RNG_Exported_Types_Group1 RNG Init Structure definition
* @{
*/
/**
* @}
*/
/** @defgroup RNG_Exported_Types_Group2 RNG State Structure definition
* @{
*/
typedef enum
{
HAL_RNG_STATE_RESET = 0x00U, /*!< RNG not yet initialized or disabled */
HAL_RNG_STATE_READY = 0x01U, /*!< RNG initialized and ready for use */
HAL_RNG_STATE_BUSY = 0x02U, /*!< RNG internal process is ongoing */
HAL_RNG_STATE_TIMEOUT = 0x03U, /*!< RNG timeout state */
HAL_RNG_STATE_ERROR = 0x04U /*!< RNG error state */
} HAL_RNG_StateTypeDef;
/**
* @}
*/
/** @defgroup RNG_Exported_Types_Group3 RNG Handle Structure definition
* @{
*/
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
typedef struct __RNG_HandleTypeDef
#else
typedef struct
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
{
RNG_TypeDef *Instance; /*!< Register base address */
HAL_LockTypeDef Lock; /*!< RNG locking object */
__IO HAL_RNG_StateTypeDef State; /*!< RNG communication state */
__IO uint32_t ErrorCode; /*!< RNG Error code */
uint32_t RandomNumber; /*!< Last Generated RNG Data */
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
void (* ReadyDataCallback)(struct __RNG_HandleTypeDef *hrng, uint32_t random32bit); /*!< RNG Data Ready Callback */
void (* ErrorCallback)(struct __RNG_HandleTypeDef *hrng); /*!< RNG Error Callback */
void (* MspInitCallback)(struct __RNG_HandleTypeDef *hrng); /*!< RNG Msp Init callback */
void (* MspDeInitCallback)(struct __RNG_HandleTypeDef *hrng); /*!< RNG Msp DeInit callback */
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
} RNG_HandleTypeDef;
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
/**
* @brief HAL RNG Callback ID enumeration definition
*/
typedef enum
{
HAL_RNG_ERROR_CB_ID = 0x00U, /*!< RNG Error Callback ID */
HAL_RNG_MSPINIT_CB_ID = 0x01U, /*!< RNG MspInit callback ID */
HAL_RNG_MSPDEINIT_CB_ID = 0x02U /*!< RNG MspDeInit callback ID */
} HAL_RNG_CallbackIDTypeDef;
/**
* @brief HAL RNG Callback pointer definition
*/
typedef void (*pRNG_CallbackTypeDef)(RNG_HandleTypeDef *hrng); /*!< pointer to a common RNG callback function */
typedef void (*pRNG_ReadyDataCallbackTypeDef)(RNG_HandleTypeDef *hrng, uint32_t random32bit); /*!< pointer to an RNG Data Ready specific callback function */
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
/**
* @}
*/
/**
* @}
*/
/* 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 */
/**
* @}
*/
/** @defgroup RNG_Error_Definition RNG Error Definition
* @{
*/
#define HAL_RNG_ERROR_NONE 0x00000000U /*!< No error */
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
#define HAL_RNG_ERROR_INVALID_CALLBACK 0x00000001U /*!< Invalid Callback error */
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
#define HAL_RNG_ERROR_TIMEOUT 0x00000002U /*!< Timeout error */
#define HAL_RNG_ERROR_BUSY 0x00000004U /*!< Busy error */
#define HAL_RNG_ERROR_SEED 0x00000008U /*!< Seed error */
#define HAL_RNG_ERROR_CLOCK 0x00000010U /*!< Clock error */
/**
* @}
*/
/**
* @}
*/
/* Exported macros -----------------------------------------------------------*/
/** @defgroup RNG_Exported_Macros RNG Exported Macros
* @{
*/
/** @brief Reset RNG handle state
* @param __HANDLE__ RNG Handle
* @retval None
*/
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
#define __HAL_RNG_RESET_HANDLE_STATE(__HANDLE__) do{ \
(__HANDLE__)->State = HAL_RNG_STATE_RESET; \
(__HANDLE__)->MspInitCallback = NULL; \
(__HANDLE__)->MspDeInitCallback = NULL; \
} while(0U)
#else
#define __HAL_RNG_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_RNG_STATE_RESET)
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
/**
* @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.
* This parameter can be one of the following values:
* @arg RNG_IT_CEI: Clock error interrupt
* @arg RNG_IT_SEI: Seed error interrupt
* @note RNG_IT_DRDY flag is read-only, reading RNG_DR register automatically clears RNG_IT_DRDY.
* @retval None
*/
#define __HAL_RNG_CLEAR_IT(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->SR) = ~(__INTERRUPT__))
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup RNG_Exported_Functions RNG Exported Functions
* @{
*/
/** @defgroup RNG_Exported_Functions_Group1 Initialization and configuration functions
* @{
*/
HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng);
HAL_StatusTypeDef HAL_RNG_DeInit(RNG_HandleTypeDef *hrng);
void HAL_RNG_MspInit(RNG_HandleTypeDef *hrng);
void HAL_RNG_MspDeInit(RNG_HandleTypeDef *hrng);
/* Callbacks Register/UnRegister functions ***********************************/
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
HAL_StatusTypeDef HAL_RNG_RegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID,
pRNG_CallbackTypeDef pCallback);
HAL_StatusTypeDef HAL_RNG_UnRegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID);
HAL_StatusTypeDef HAL_RNG_RegisterReadyDataCallback(RNG_HandleTypeDef *hrng, pRNG_ReadyDataCallbackTypeDef pCallback);
HAL_StatusTypeDef HAL_RNG_UnRegisterReadyDataCallback(RNG_HandleTypeDef *hrng);
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
/**
* @}
*/
/** @defgroup RNG_Exported_Functions_Group2 Peripheral Control functions
* @{
*/
uint32_t HAL_RNG_GetRandomNumber(RNG_HandleTypeDef
*hrng); /* Obsolete, use HAL_RNG_GenerateRandomNumber() instead */
uint32_t HAL_RNG_GetRandomNumber_IT(RNG_HandleTypeDef
*hrng); /* Obsolete, use HAL_RNG_GenerateRandomNumber_IT() instead */
HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber(RNG_HandleTypeDef *hrng, uint32_t *random32bit);
HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber_IT(RNG_HandleTypeDef *hrng);
uint32_t HAL_RNG_ReadLastRandomNumber(RNG_HandleTypeDef *hrng);
void HAL_RNG_IRQHandler(RNG_HandleTypeDef *hrng);
void HAL_RNG_ErrorCallback(RNG_HandleTypeDef *hrng);
void HAL_RNG_ReadyDataCallback(RNG_HandleTypeDef *hrng, uint32_t random32bit);
/**
* @}
*/
/** @defgroup RNG_Exported_Functions_Group3 Peripheral State functions
* @{
*/
HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng);
uint32_t HAL_RNG_GetError(RNG_HandleTypeDef *hrng);
/**
* @}
*/
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup RNG_Private_Macros RNG Private Macros
* @{
*/
#define IS_RNG_IT(IT) (((IT) == RNG_IT_CEI) || \
((IT) == RNG_IT_SEI))
#define IS_RNG_FLAG(FLAG) (((FLAG) == RNG_FLAG_DRDY) || \
((FLAG) == RNG_FLAG_CECS) || \
((FLAG) == RNG_FLAG_SECS))
/**
* @}
*/
/**
* @}
*/
#endif /* RNG */
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32F4xx_HAL_RNG_H */

335
Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_rng.h
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@ -0,0 +1,335 @@
/**
******************************************************************************
* @file stm32f4xx_ll_rng.h
* @author MCD Application Team
* @brief Header file of RNG LL module.
******************************************************************************
* @attention
*
* Copyright (c) 2016 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.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32F4xx_LL_RNG_H
#define STM32F4xx_LL_RNG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"
/** @addtogroup STM32F4xx_LL_Driver
* @{
*/
#if defined (RNG)
/** @defgroup RNG_LL RNG
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup RNG_LL_Exported_Constants RNG Exported Constants
* @{
*/
/** @defgroup RNG_LL_EC_GET_FLAG Get Flags Defines
* @brief Flags defines which can be used with LL_RNG_ReadReg function
* @{
*/
#define LL_RNG_SR_DRDY RNG_SR_DRDY /*!< Register contains valid random data */
#define LL_RNG_SR_CECS RNG_SR_CECS /*!< Clock error current status */
#define LL_RNG_SR_SECS RNG_SR_SECS /*!< Seed error current status */
#define LL_RNG_SR_CEIS RNG_SR_CEIS /*!< Clock error interrupt status */
#define LL_RNG_SR_SEIS RNG_SR_SEIS /*!< Seed error interrupt status */
/**
* @}
*/
/** @defgroup RNG_LL_EC_IT IT Defines
* @brief IT defines which can be used with LL_RNG_ReadReg and LL_RNG_WriteReg macros
* @{
*/
#define LL_RNG_CR_IE RNG_CR_IE /*!< RNG Interrupt enable */
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/** @defgroup RNG_LL_Exported_Macros RNG Exported Macros
* @{
*/
/** @defgroup RNG_LL_EM_WRITE_READ Common Write and read registers Macros
* @{
*/
/**
* @brief Write a value in RNG register
* @param __INSTANCE__ RNG Instance
* @param __REG__ Register to be written
* @param __VALUE__ Value to be written in the register
* @retval None
*/
#define LL_RNG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
/**
* @brief Read a value in RNG register
* @param __INSTANCE__ RNG Instance
* @param __REG__ Register to be read
* @retval Register value
*/
#define LL_RNG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
/**
* @}
*/
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup RNG_LL_Exported_Functions RNG Exported Functions
* @{
*/
/** @defgroup RNG_LL_EF_Configuration RNG Configuration functions
* @{
*/
/**
* @brief Enable Random Number Generation
* @rmtoll CR RNGEN LL_RNG_Enable
* @param RNGx RNG Instance
* @retval None
*/
__STATIC_INLINE void LL_RNG_Enable(RNG_TypeDef *RNGx)
{
SET_BIT(RNGx->CR, RNG_CR_RNGEN);
}
/**
* @brief Disable Random Number Generation
* @rmtoll CR RNGEN LL_RNG_Disable
* @param RNGx RNG Instance
* @retval None
*/
__STATIC_INLINE void LL_RNG_Disable(RNG_TypeDef *RNGx)
{
CLEAR_BIT(RNGx->CR, RNG_CR_RNGEN);
}
/**
* @brief Check if Random Number Generator is enabled
* @rmtoll CR RNGEN LL_RNG_IsEnabled
* @param RNGx RNG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_RNG_IsEnabled(RNG_TypeDef *RNGx)
{
return ((READ_BIT(RNGx->CR, RNG_CR_RNGEN) == (RNG_CR_RNGEN)) ? 1UL : 0UL);
}
/**
* @}
*/
/** @defgroup RNG_LL_EF_FLAG_Management FLAG Management
* @{
*/
/**
* @brief Indicate if the RNG Data ready Flag is set or not
* @rmtoll SR DRDY LL_RNG_IsActiveFlag_DRDY
* @param RNGx RNG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_DRDY(RNG_TypeDef *RNGx)
{
return ((READ_BIT(RNGx->SR, RNG_SR_DRDY) == (RNG_SR_DRDY)) ? 1UL : 0UL);
}
/**
* @brief Indicate if the Clock Error Current Status Flag is set or not
* @rmtoll SR CECS LL_RNG_IsActiveFlag_CECS
* @param RNGx RNG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_CECS(RNG_TypeDef *RNGx)
{
return ((READ_BIT(RNGx->SR, RNG_SR_CECS) == (RNG_SR_CECS)) ? 1UL : 0UL);
}
/**
* @brief Indicate if the Seed Error Current Status Flag is set or not
* @rmtoll SR SECS LL_RNG_IsActiveFlag_SECS
* @param RNGx RNG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_SECS(RNG_TypeDef *RNGx)
{
return ((READ_BIT(RNGx->SR, RNG_SR_SECS) == (RNG_SR_SECS)) ? 1UL : 0UL);
}
/**
* @brief Indicate if the Clock Error Interrupt Status Flag is set or not
* @rmtoll SR CEIS LL_RNG_IsActiveFlag_CEIS
* @param RNGx RNG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_CEIS(RNG_TypeDef *RNGx)
{
return ((READ_BIT(RNGx->SR, RNG_SR_CEIS) == (RNG_SR_CEIS)) ? 1UL : 0UL);
}
/**
* @brief Indicate if the Seed Error Interrupt Status Flag is set or not
* @rmtoll SR SEIS LL_RNG_IsActiveFlag_SEIS
* @param RNGx RNG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_SEIS(RNG_TypeDef *RNGx)
{
return ((READ_BIT(RNGx->SR, RNG_SR_SEIS) == (RNG_SR_SEIS)) ? 1UL : 0UL);
}
/**
* @brief Clear Clock Error interrupt Status (CEIS) Flag
* @rmtoll SR CEIS LL_RNG_ClearFlag_CEIS
* @param RNGx RNG Instance
* @retval None
*/
__STATIC_INLINE void LL_RNG_ClearFlag_CEIS(RNG_TypeDef *RNGx)
{
WRITE_REG(RNGx->SR, ~RNG_SR_CEIS);
}
/**
* @brief Clear Seed Error interrupt Status (SEIS) Flag
* @rmtoll SR SEIS LL_RNG_ClearFlag_SEIS
* @param RNGx RNG Instance
* @retval None
*/
__STATIC_INLINE void LL_RNG_ClearFlag_SEIS(RNG_TypeDef *RNGx)
{
WRITE_REG(RNGx->SR, ~RNG_SR_SEIS);
}
/**
* @}
*/
/** @defgroup RNG_LL_EF_IT_Management IT Management
* @{
*/
/**
* @brief Enable Random Number Generator Interrupt
* (applies for either Seed error, Clock Error or Data ready interrupts)
* @rmtoll CR IE LL_RNG_EnableIT
* @param RNGx RNG Instance
* @retval None
*/
__STATIC_INLINE void LL_RNG_EnableIT(RNG_TypeDef *RNGx)
{
SET_BIT(RNGx->CR, RNG_CR_IE);
}
/**
* @brief Disable Random Number Generator Interrupt
* (applies for either Seed error, Clock Error or Data ready interrupts)
* @rmtoll CR IE LL_RNG_DisableIT
* @param RNGx RNG Instance
* @retval None
*/
__STATIC_INLINE void LL_RNG_DisableIT(RNG_TypeDef *RNGx)
{
CLEAR_BIT(RNGx->CR, RNG_CR_IE);
}
/**
* @brief Check if Random Number Generator Interrupt is enabled
* (applies for either Seed error, Clock Error or Data ready interrupts)
* @rmtoll CR IE LL_RNG_IsEnabledIT
* @param RNGx RNG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_RNG_IsEnabledIT(RNG_TypeDef *RNGx)
{
return ((READ_BIT(RNGx->CR, RNG_CR_IE) == (RNG_CR_IE)) ? 1UL : 0UL);
}
/**
* @}
*/
/** @defgroup RNG_LL_EF_Data_Management Data Management
* @{
*/
/**
* @brief Return32-bit Random Number value
* @rmtoll DR RNDATA LL_RNG_ReadRandData32
* @param RNGx RNG Instance
* @retval Generated 32-bit random value
*/
__STATIC_INLINE uint32_t LL_RNG_ReadRandData32(RNG_TypeDef *RNGx)
{
return (uint32_t)(READ_REG(RNGx->DR));
}
/**
* @}
*/
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup RNG_LL_EF_Init Initialization and de-initialization functions
* @{
*/
ErrorStatus LL_RNG_DeInit(RNG_TypeDef *RNGx);
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/**
* @}
*/
/**
* @}
*/
#endif /* RNG */
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32F4xx_LL_RNG_H */

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Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rng.c
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@ -0,0 +1,867 @@
/**
******************************************************************************
* @file stm32f4xx_hal_rng.c
* @author MCD Application Team
* @brief RNG HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the Random Number Generator (RNG) peripheral:
* + Initialization and configuration functions
* + Peripheral Control functions
* + Peripheral State functions
*
******************************************************************************
* @attention
*
* Copyright (c) 2016 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.
*
******************************************************************************
@verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
The RNG HAL driver can be used as follows:
(#) Enable the RNG controller clock using __HAL_RCC_RNG_CLK_ENABLE() macro
in HAL_RNG_MspInit().
(#) Activate the RNG peripheral using HAL_RNG_Init() function.
(#) Wait until the 32 bit Random Number Generator contains a valid
random data using (polling/interrupt) mode.
(#) Get the 32 bit random number using HAL_RNG_GenerateRandomNumber() function.
##### Callback registration #####
==================================
[..]
The compilation define USE_HAL_RNG_REGISTER_CALLBACKS when set to 1
allows the user to configure dynamically the driver callbacks.
[..]
Use Function HAL_RNG_RegisterCallback() to register a user callback.
Function HAL_RNG_RegisterCallback() allows to register following callbacks:
(+) ErrorCallback : RNG Error Callback.
(+) MspInitCallback : RNG MspInit.
(+) MspDeInitCallback : RNG MspDeInit.
This function takes as parameters the HAL peripheral handle, the Callback ID
and a pointer to the user callback function.
[..]
Use function HAL_RNG_UnRegisterCallback() to reset a callback to the default
weak (surcharged) function.
HAL_RNG_UnRegisterCallback() takes as parameters the HAL peripheral handle,
and the Callback ID.
This function allows to reset following callbacks:
(+) ErrorCallback : RNG Error Callback.
(+) MspInitCallback : RNG MspInit.
(+) MspDeInitCallback : RNG MspDeInit.
[..]
For specific callback ReadyDataCallback, use dedicated register callbacks:
respectively HAL_RNG_RegisterReadyDataCallback() , HAL_RNG_UnRegisterReadyDataCallback().
[..]
By default, after the HAL_RNG_Init() and when the state is HAL_RNG_STATE_RESET
all callbacks are set to the corresponding weak (surcharged) functions:
example HAL_RNG_ErrorCallback().
Exception done for MspInit and MspDeInit functions that are respectively
reset to the legacy weak (surcharged) functions in the HAL_RNG_Init()
and HAL_RNG_DeInit() only when these callbacks are null (not registered beforehand).
If not, MspInit or MspDeInit are not null, the HAL_RNG_Init() and HAL_RNG_DeInit()
keep and use the user MspInit/MspDeInit callbacks (registered beforehand).
[..]
Callbacks can be registered/unregistered in HAL_RNG_STATE_READY state only.
Exception done MspInit/MspDeInit that can be registered/unregistered
in HAL_RNG_STATE_READY or HAL_RNG_STATE_RESET state, thus registered (user)
MspInit/DeInit callbacks can be used during the Init/DeInit.
In that case first register the MspInit/MspDeInit user callbacks
using HAL_RNG_RegisterCallback() before calling HAL_RNG_DeInit()
or HAL_RNG_Init() function.
[..]
When The compilation define USE_HAL_RNG_REGISTER_CALLBACKS is set to 0 or
not defined, the callback registration feature is not available
and weak (surcharged) callbacks are used.
@endverbatim
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{
*/
#if defined (RNG)
/** @addtogroup RNG
* @brief RNG HAL module driver.
* @{
*/
#ifdef HAL_RNG_MODULE_ENABLED
/* Private types -------------------------------------------------------------*/
/* Private defines -----------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup RNG_Private_Constants RNG Private Constants
* @{
*/
#define RNG_TIMEOUT_VALUE 2U
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/* Private functions prototypes ----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup RNG_Exported_Functions
* @{
*/
/** @addtogroup RNG_Exported_Functions_Group1
* @brief Initialization and configuration functions
*
@verbatim
===============================================================================
##### Initialization and configuration functions #####
===============================================================================
[..] This section provides functions allowing to:
(+) Initialize the RNG according to the specified parameters
in the RNG_InitTypeDef and create the associated handle
(+) DeInitialize the RNG peripheral
(+) Initialize the RNG MSP
(+) DeInitialize RNG MSP
@endverbatim
* @{
*/
/**
* @brief Initializes the RNG peripheral and creates the associated handle.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng)
{
/* Check the RNG handle allocation */
if (hrng == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_RNG_ALL_INSTANCE(hrng->Instance));
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
if (hrng->State == HAL_RNG_STATE_RESET)
{
/* Allocate lock resource and initialize it */
hrng->Lock = HAL_UNLOCKED;
hrng->ReadyDataCallback = HAL_RNG_ReadyDataCallback; /* Legacy weak ReadyDataCallback */
hrng->ErrorCallback = HAL_RNG_ErrorCallback; /* Legacy weak ErrorCallback */
if (hrng->MspInitCallback == NULL)
{
hrng->MspInitCallback = HAL_RNG_MspInit; /* Legacy weak MspInit */
}
/* Init the low level hardware */
hrng->MspInitCallback(hrng);
}
#else
if (hrng->State == HAL_RNG_STATE_RESET)
{
/* Allocate lock resource and initialize it */
hrng->Lock = HAL_UNLOCKED;
/* Init the low level hardware */
HAL_RNG_MspInit(hrng);
}
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
/* Change RNG peripheral state */
hrng->State = HAL_RNG_STATE_BUSY;
/* Enable the RNG Peripheral */
__HAL_RNG_ENABLE(hrng);
/* Initialize the RNG state */
hrng->State = HAL_RNG_STATE_READY;
/* Initialise the error code */
hrng->ErrorCode = HAL_RNG_ERROR_NONE;
/* Return function status */
return HAL_OK;
}
/**
* @brief DeInitializes the RNG peripheral.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RNG_DeInit(RNG_HandleTypeDef *hrng)
{
/* Check the RNG handle allocation */
if (hrng == NULL)
{
return HAL_ERROR;
}
/* Disable the RNG Peripheral */
CLEAR_BIT(hrng->Instance->CR, RNG_CR_IE | RNG_CR_RNGEN);
/* Clear RNG interrupt status flags */
CLEAR_BIT(hrng->Instance->SR, RNG_SR_CEIS | RNG_SR_SEIS);
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
if (hrng->MspDeInitCallback == NULL)
{
hrng->MspDeInitCallback = HAL_RNG_MspDeInit; /* Legacy weak MspDeInit */
}
/* DeInit the low level hardware */
hrng->MspDeInitCallback(hrng);
#else
/* DeInit the low level hardware */
HAL_RNG_MspDeInit(hrng);
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
/* Update the RNG state */
hrng->State = HAL_RNG_STATE_RESET;
/* Initialise the error code */
hrng->ErrorCode = HAL_RNG_ERROR_NONE;
/* Release Lock */
__HAL_UNLOCK(hrng);
/* Return the function status */
return HAL_OK;
}
/**
* @brief Initializes the RNG MSP.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @retval None
*/
__weak void HAL_RNG_MspInit(RNG_HandleTypeDef *hrng)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrng);
/* NOTE : This function should not be modified. When the callback is needed,
function HAL_RNG_MspInit must be implemented in the user file.
*/
}
/**
* @brief DeInitializes the RNG MSP.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @retval None
*/
__weak void HAL_RNG_MspDeInit(RNG_HandleTypeDef *hrng)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrng);
/* NOTE : This function should not be modified. When the callback is needed,
function HAL_RNG_MspDeInit must be implemented in the user file.
*/
}
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
/**
* @brief Register a User RNG Callback
* To be used instead of the weak predefined callback
* @param hrng RNG handle
* @param CallbackID ID of the callback to be registered
* This parameter can be one of the following values:
* @arg @ref HAL_RNG_ERROR_CB_ID Error callback ID
* @arg @ref HAL_RNG_MSPINIT_CB_ID MspInit callback ID
* @arg @ref HAL_RNG_MSPDEINIT_CB_ID MspDeInit callback ID
* @param pCallback pointer to the Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RNG_RegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID,
pRNG_CallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hrng);
if (HAL_RNG_STATE_READY == hrng->State)
{
switch (CallbackID)
{
case HAL_RNG_ERROR_CB_ID :
hrng->ErrorCallback = pCallback;
break;
case HAL_RNG_MSPINIT_CB_ID :
hrng->MspInitCallback = pCallback;
break;
case HAL_RNG_MSPDEINIT_CB_ID :
hrng->MspDeInitCallback = pCallback;
break;
default :
/* Update the error code */
hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
break;
}
}
else if (HAL_RNG_STATE_RESET == hrng->State)
{
switch (CallbackID)
{
case HAL_RNG_MSPINIT_CB_ID :
hrng->MspInitCallback = pCallback;
break;
case HAL_RNG_MSPDEINIT_CB_ID :
hrng->MspDeInitCallback = pCallback;
break;
default :
/* Update the error code */
hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
break;
}
}
else
{
/* Update the error code */
hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hrng);
return status;
}
/**
* @brief Unregister an RNG Callback
* RNG callback is redirected to the weak predefined callback
* @param hrng RNG handle
* @param CallbackID ID of the callback to be unregistered
* This parameter can be one of the following values:
* @arg @ref HAL_RNG_ERROR_CB_ID Error callback ID
* @arg @ref HAL_RNG_MSPINIT_CB_ID MspInit callback ID
* @arg @ref HAL_RNG_MSPDEINIT_CB_ID MspDeInit callback ID
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RNG_UnRegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hrng);
if (HAL_RNG_STATE_READY == hrng->State)
{
switch (CallbackID)
{
case HAL_RNG_ERROR_CB_ID :
hrng->ErrorCallback = HAL_RNG_ErrorCallback; /* Legacy weak ErrorCallback */
break;
case HAL_RNG_MSPINIT_CB_ID :
hrng->MspInitCallback = HAL_RNG_MspInit; /* Legacy weak MspInit */
break;
case HAL_RNG_MSPDEINIT_CB_ID :
hrng->MspDeInitCallback = HAL_RNG_MspDeInit; /* Legacy weak MspDeInit */
break;
default :
/* Update the error code */
hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
break;
}
}
else if (HAL_RNG_STATE_RESET == hrng->State)
{
switch (CallbackID)
{
case HAL_RNG_MSPINIT_CB_ID :
hrng->MspInitCallback = HAL_RNG_MspInit; /* Legacy weak MspInit */
break;
case HAL_RNG_MSPDEINIT_CB_ID :
hrng->MspDeInitCallback = HAL_RNG_MspDeInit; /* Legacy weak MspInit */
break;
default :
/* Update the error code */
hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
break;
}
}
else
{
/* Update the error code */
hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hrng);
return status;
}
/**
* @brief Register Data Ready RNG Callback
* To be used instead of the weak HAL_RNG_ReadyDataCallback() predefined callback
* @param hrng RNG handle
* @param pCallback pointer to the Data Ready Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RNG_RegisterReadyDataCallback(RNG_HandleTypeDef *hrng, pRNG_ReadyDataCallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hrng);
if (HAL_RNG_STATE_READY == hrng->State)
{
hrng->ReadyDataCallback = pCallback;
}
else
{
/* Update the error code */
hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hrng);
return status;
}
/**
* @brief UnRegister the Data Ready RNG Callback
* Data Ready RNG Callback is redirected to the weak HAL_RNG_ReadyDataCallback() predefined callback
* @param hrng RNG handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RNG_UnRegisterReadyDataCallback(RNG_HandleTypeDef *hrng)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hrng);
if (HAL_RNG_STATE_READY == hrng->State)
{
hrng->ReadyDataCallback = HAL_RNG_ReadyDataCallback; /* Legacy weak ReadyDataCallback */
}
else
{
/* Update the error code */
hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hrng);
return status;
}
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
/**
* @}
*/
/** @addtogroup RNG_Exported_Functions_Group2
* @brief Peripheral Control functions
*
@verbatim
===============================================================================
##### Peripheral Control functions #####
===============================================================================
[..] This section provides functions allowing to:
(+) Get the 32 bit Random number
(+) Get the 32 bit Random number with interrupt enabled
(+) Handle RNG interrupt request
@endverbatim
* @{
*/
/**
* @brief Generates a 32-bit random number.
* @note Each time the random number data is read the RNG_FLAG_DRDY flag
* is automatically cleared.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @param random32bit pointer to generated random number variable if successful.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber(RNG_HandleTypeDef *hrng, uint32_t *random32bit)
{
uint32_t tickstart;
HAL_StatusTypeDef status = HAL_OK;
/* Process Locked */
__HAL_LOCK(hrng);
/* Check RNG peripheral state */
if (hrng->State == HAL_RNG_STATE_READY)
{
/* Change RNG peripheral state */
hrng->State = HAL_RNG_STATE_BUSY;
/* Get tick */
tickstart = HAL_GetTick();
/* Check if data register contains valid random data */
while (__HAL_RNG_GET_FLAG(hrng, RNG_FLAG_DRDY) == RESET)
{
if ((HAL_GetTick() - tickstart) > RNG_TIMEOUT_VALUE)
{
/* New check to avoid false timeout detection in case of preemption */
if (__HAL_RNG_GET_FLAG(hrng, RNG_FLAG_DRDY) == RESET)
{
hrng->State = HAL_RNG_STATE_READY;
hrng->ErrorCode = HAL_RNG_ERROR_TIMEOUT;
/* Process Unlocked */
__HAL_UNLOCK(hrng);
return HAL_ERROR;
}
}
}
/* Get a 32bit Random number */
hrng->RandomNumber = hrng->Instance->DR;
*random32bit = hrng->RandomNumber;
hrng->State = HAL_RNG_STATE_READY;
}
else
{
hrng->ErrorCode = HAL_RNG_ERROR_BUSY;
status = HAL_ERROR;
}
/* Process Unlocked */
__HAL_UNLOCK(hrng);
return status;
}
/**
* @brief Generates a 32-bit random number in interrupt mode.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber_IT(RNG_HandleTypeDef *hrng)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process Locked */
__HAL_LOCK(hrng);
/* Check RNG peripheral state */
if (hrng->State == HAL_RNG_STATE_READY)
{
/* Change RNG peripheral state */
hrng->State = HAL_RNG_STATE_BUSY;
/* Enable the RNG Interrupts: Data Ready, Clock error, Seed error */
__HAL_RNG_ENABLE_IT(hrng);
}
else
{
/* Process Unlocked */
__HAL_UNLOCK(hrng);
hrng->ErrorCode = HAL_RNG_ERROR_BUSY;
status = HAL_ERROR;
}
return status;
}
/**
* @brief Returns generated random number in polling mode (Obsolete)
* Use HAL_RNG_GenerateRandomNumber() API instead.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @retval Random value
*/
uint32_t HAL_RNG_GetRandomNumber(RNG_HandleTypeDef *hrng)
{
if (HAL_RNG_GenerateRandomNumber(hrng, &(hrng->RandomNumber)) == HAL_OK)
{
return hrng->RandomNumber;
}
else
{
return 0U;
}
}
/**
* @brief Returns a 32-bit random number with interrupt enabled (Obsolete),
* Use HAL_RNG_GenerateRandomNumber_IT() API instead.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @retval 32-bit random number
*/
uint32_t HAL_RNG_GetRandomNumber_IT(RNG_HandleTypeDef *hrng)
{
uint32_t random32bit = 0U;
/* Process locked */
__HAL_LOCK(hrng);
/* Change RNG peripheral state */
hrng->State = HAL_RNG_STATE_BUSY;
/* Get a 32bit Random number */
random32bit = hrng->Instance->DR;
/* Enable the RNG Interrupts: Data Ready, Clock error, Seed error */
__HAL_RNG_ENABLE_IT(hrng);
/* Return the 32 bit random number */
return random32bit;
}
/**
* @brief Handles RNG interrupt request.
* @note In the case of a clock error, the RNG is no more able to generate
* random numbers because the PLL48CLK clock is not correct. User has
* to check that the clock controller is correctly configured to provide
* the RNG clock and clear the CEIS bit using __HAL_RNG_CLEAR_IT().
* The clock error has no impact on the previously generated
* random numbers, and the RNG_DR register contents can be used.
* @note In the case of a seed error, the generation of random numbers is
* interrupted as long as the SECS bit is '1'. If a number is
* available in the RNG_DR register, it must not be used because it may
* not have enough entropy. In this case, it is recommended to clear the
* SEIS bit using __HAL_RNG_CLEAR_IT(), then disable and enable
* the RNG peripheral to reinitialize and restart the RNG.
* @note User-written HAL_RNG_ErrorCallback() API is called once whether SEIS
* or CEIS are set.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @retval None
*/
void HAL_RNG_IRQHandler(RNG_HandleTypeDef *hrng)
{
uint32_t rngclockerror = 0U;
/* RNG clock error interrupt occurred */
if (__HAL_RNG_GET_IT(hrng, RNG_IT_CEI) != RESET)
{
/* Update the error code */
hrng->ErrorCode = HAL_RNG_ERROR_CLOCK;
rngclockerror = 1U;
}
else if (__HAL_RNG_GET_IT(hrng, RNG_IT_SEI) != RESET)
{
/* Update the error code */
hrng->ErrorCode = HAL_RNG_ERROR_SEED;
rngclockerror = 1U;
}
else
{
/* Nothing to do */
}
if (rngclockerror == 1U)
{
/* Change RNG peripheral state */
hrng->State = HAL_RNG_STATE_ERROR;
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
/* Call registered Error callback */
hrng->ErrorCallback(hrng);
#else
/* Call legacy weak Error callback */
HAL_RNG_ErrorCallback(hrng);
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
/* Clear the clock error flag */
__HAL_RNG_CLEAR_IT(hrng, RNG_IT_CEI | RNG_IT_SEI);
return;
}
/* Check RNG data ready interrupt occurred */
if (__HAL_RNG_GET_IT(hrng, RNG_IT_DRDY) != RESET)
{
/* Generate random number once, so disable the IT */
__HAL_RNG_DISABLE_IT(hrng);
/* Get the 32bit Random number (DRDY flag automatically cleared) */
hrng->RandomNumber = hrng->Instance->DR;
if (hrng->State != HAL_RNG_STATE_ERROR)
{
/* Change RNG peripheral state */
hrng->State = HAL_RNG_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrng);
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
/* Call registered Data Ready callback */
hrng->ReadyDataCallback(hrng, hrng->RandomNumber);
#else
/* Call legacy weak Data Ready callback */
HAL_RNG_ReadyDataCallback(hrng, hrng->RandomNumber);
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
}
}
}
/**
* @brief Read latest generated random number.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @retval random value
*/
uint32_t HAL_RNG_ReadLastRandomNumber(RNG_HandleTypeDef *hrng)
{
return (hrng->RandomNumber);
}
/**
* @brief Data Ready callback in non-blocking mode.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @param random32bit generated random number.
* @retval None
*/
__weak void HAL_RNG_ReadyDataCallback(RNG_HandleTypeDef *hrng, uint32_t random32bit)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrng);
UNUSED(random32bit);
/* NOTE : This function should not be modified. When the callback is needed,
function HAL_RNG_ReadyDataCallback must be implemented in the user file.
*/
}
/**
* @brief RNG error callbacks.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @retval None
*/
__weak void HAL_RNG_ErrorCallback(RNG_HandleTypeDef *hrng)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hrng);
/* NOTE : This function should not be modified. When the callback is needed,
function HAL_RNG_ErrorCallback must be implemented in the user file.
*/
}
/**
* @}
*/
/** @addtogroup RNG_Exported_Functions_Group3
* @brief Peripheral State functions
*
@verbatim
===============================================================================
##### Peripheral State functions #####
===============================================================================
[..]
This subsection permits to get in run-time the status of the peripheral
and the data flow.
@endverbatim
* @{
*/
/**
* @brief Returns the RNG state.
* @param hrng pointer to a RNG_HandleTypeDef structure that contains
* the configuration information for RNG.
* @retval HAL state
*/
HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng)
{
return hrng->State;
}
/**
* @brief Return the RNG handle error code.
* @param hrng: pointer to a RNG_HandleTypeDef structure.
* @retval RNG Error Code
*/
uint32_t HAL_RNG_GetError(RNG_HandleTypeDef *hrng)
{
/* Return RNG Error Code */
return hrng->ErrorCode;
}
/**
* @}
*/
/**
* @}
*/
#endif /* HAL_RNG_MODULE_ENABLED */
/**
* @}
*/
#endif /* RNG */
/**
* @}
*/
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