1 /** 2 ****************************************************************************** 3 * @file stm32f2xx_rng.h 4 * @author MCD Application Team 5 * @version V1.1.2 6 * @date 05-March-2012 7 * @brief This file contains all the functions prototypes for the Random 8 * Number Generator(RNG) firmware library. 9 ****************************************************************************** 10 * @attention 11 * 12 * <h2><center>© COPYRIGHT 2012 STMicroelectronics</center></h2> 13 * 14 * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); 15 * You may not use this file except in compliance with the License. 16 * You may obtain a copy of the License at: 17 * 18 * http://www.st.com/software_license_agreement_liberty_v2 19 * 20 * Unless required by applicable law or agreed to in writing, software 21 * distributed under the License is distributed on an "AS IS" BASIS, 22 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 23 * See the License for the specific language governing permissions and 24 * limitations under the License. 25 * 26 ****************************************************************************** 27 */ 28 29 /* Define to prevent recursive inclusion -------------------------------------*/ 30 #ifndef __STM32F2xx_RNG_H 31 #define __STM32F2xx_RNG_H 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 /* Includes ------------------------------------------------------------------*/ 38 #include "stm32f2xx.h" 39 40 /** @addtogroup STM32F2xx_StdPeriph_Driver 41 * @{ 42 */ 43 44 /** @addtogroup RNG 45 * @{ 46 */ 47 48 /* Exported types ------------------------------------------------------------*/ 49 /* Exported constants --------------------------------------------------------*/ 50 51 /** @defgroup RNG_Exported_Constants 52 * @{ 53 */ 54 55 /** @defgroup RNG_flags_definition 56 * @{ 57 */ 58 #define RNG_FLAG_DRDY ((uint8_t)0x0001) /*!< Data ready */ 59 #define RNG_FLAG_CECS ((uint8_t)0x0002) /*!< Clock error current status */ 60 #define RNG_FLAG_SECS ((uint8_t)0x0004) /*!< Seed error current status */ 61 62 #define IS_RNG_GET_FLAG(RNG_FLAG) (((RNG_FLAG) == RNG_FLAG_DRDY) || \ 63 ((RNG_FLAG) == RNG_FLAG_CECS) || \ 64 ((RNG_FLAG) == RNG_FLAG_SECS)) 65 #define IS_RNG_CLEAR_FLAG(RNG_FLAG) (((RNG_FLAG) == RNG_FLAG_CECS) || \ 66 ((RNG_FLAG) == RNG_FLAG_SECS)) 67 /** 68 * @} 69 */ 70 71 /** @defgroup RNG_interrupts_definition 72 * @{ 73 */ 74 #define RNG_IT_CEI ((uint8_t)0x20) /*!< Clock error interrupt */ 75 #define RNG_IT_SEI ((uint8_t)0x40) /*!< Seed error interrupt */ 76 77 #define IS_RNG_IT(IT) ((((IT) & (uint8_t)0x9F) == 0x00) && ((IT) != 0x00)) 78 #define IS_RNG_GET_IT(RNG_IT) (((RNG_IT) == RNG_IT_CEI) || ((RNG_IT) == RNG_IT_SEI)) 79 /** 80 * @} 81 */ 82 83 /** 84 * @} 85 */ 86 87 /* Exported macro ------------------------------------------------------------*/ 88 /* Exported functions --------------------------------------------------------*/ 89 90 /* Function used to set the RNG configuration to the default reset state *****/ 91 void RNG_DeInit(void); 92 93 /* Configuration function *****************************************************/ 94 void RNG_Cmd(FunctionalState NewState); 95 96 /* Get 32 bit Random number function ******************************************/ 97 uint32_t RNG_GetRandomNumber(void); 98 99 /* Interrupts and flags management functions **********************************/ 100 void RNG_ITConfig(FunctionalState NewState); 101 FlagStatus RNG_GetFlagStatus(uint8_t RNG_FLAG); 102 void RNG_ClearFlag(uint8_t RNG_FLAG); 103 ITStatus RNG_GetITStatus(uint8_t RNG_IT); 104 void RNG_ClearITPendingBit(uint8_t RNG_IT); 105 106 #ifdef __cplusplus 107 } 108 #endif 109 110 #endif /*__STM32F2xx_RNG_H */ 111 112 /** 113 * @} 114 */ 115 116 /** 117 * @} 118 */ 119 120 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 121