/**
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******************************************************************************
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* @file fm33a0xxev_rng.c
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* @author FM33A0XXEV Application Team
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* @version V1.0.0
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* @date 16-April-2020
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* @brief This file provides firmware functions to manage the following
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* functionalities of....:
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*
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "fm33a0xxev_rng.h"
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/** @addtogroup fm33a0xxev_StdPeriph_Driver
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* @{
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*/
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/** @defgroup RNG
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* @brief RNG driver modules
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* @{
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*/
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/* RNGʹÄܼĴæÆ÷£¬Èí¼þд1Æô¶¯ (RNG enable)
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1£ºÆô¶¯RNG
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0£º¹Ø±ÕRNG Ïà¹Øº¯Êý */
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void RNG_CR_EN_Setable(FunState NewState)
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{
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if (NewState == ENABLE)
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{
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RNG->CR |= (RNG_CR_EN_Msk);
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}
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else
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{
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RNG->CR &= ~(RNG_CR_EN_Msk);
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}
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}
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FunState RNG_CR_EN_Getable(void)
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{
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if (RNG->CR & (RNG_CR_EN_Msk))
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{
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return ENABLE;
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}
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else
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{
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return DISABLE;
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}
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}
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/* Ëæ»úÊýÉú³É½á¹û»òCRCÔËËã½á¹û¼Ä´æÆ÷£¬Ö»¶Á
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(RNG output) Ïà¹Øº¯Êý */
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uint32_t RNG_DOR_Read(void)
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{
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return (RNG->DOR);
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}
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/* LFSR״̬±êÖ¾£¬Ö»¶Á (LFSR enable)
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1£ºLFSRÔÚÔËÐÐÖУ¬²»¿É½øÐÐCRCÑéÖ¤
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0£ºLFSR²»ÔÚÔËÐÐÖУ¬¿É½øÐÐCRCÑéÖ¤
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×¢£º±¾¼Ä´æÆ÷²»»áÒýÆðÄ£¿éÖжϣ¬½ö¹©²éѯ Ïà¹Øº¯Êý */
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FlagStatus RNG_SR_LFSREN_Chk(void)
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{
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if (RNG->SR & (RNG_SR_LFSREN_Msk))
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{
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return SET;
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}
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else
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{
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return RESET;
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}
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}
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/* Ëæ»úÊýÉú³Éʧ°Ü±êÖ¾£¬Èí¼þд1ÇåÁã (Random Number Fail)
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1£ºËæ»úÊýδÄÜͨ¹ýÖÊÁ¿¼ì²â
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0£ºËæ»úÊýͨ¹ýÖÊÁ¿¼ì²â Ïà¹Øº¯Êý */
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void RNG_SR_RNF_Clr(void)
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{
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RNG->SR = RNG_SR_RNF_Msk;
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}
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FlagStatus RNG_SR_RNF_Chk(void)
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{
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if (RNG->SR & RNG_SR_RNF_Msk)
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{
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return SET;
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}
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else
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{
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return RESET;
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}
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}
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/* CRCʹÄÜ¿ØÖƼĴæÆ÷£¬Èí¼þд1Æô¶¯CRC£¬ÔËËãÍê³ÉºóÓ²¼þ×Ô¶¯ÇåÁã (CRC enable)
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1£ºCRCʹÄÜ
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0£ºCRC¹Ø±Õ Ïà¹Øº¯Êý */
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void RNG_CRC_CR_CRCEN_Setable(FunState NewState)
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{
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if (NewState == ENABLE)
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{
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RNG->CRC_CR |= (RNG_CRC_CR_CRCEN_Msk);
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}
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else
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{
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RNG->CRC_CR &= ~(RNG_CRC_CR_CRCEN_Msk);
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}
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}
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FunState RNG_CRC_CR_CRCEN_Getable(void)
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{
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if (RNG->CRC_CR & (RNG_CRC_CR_CRCEN_Msk))
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{
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return ENABLE;
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}
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else
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{
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return DISABLE;
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}
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}
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/* CRCÔËËãÊý¾ÝÊäÈë¼Ä´æÆ÷ (CRC data input) Ïà¹Øº¯Êý */
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void RNG_CRC_DIR_Write(uint32_t SetValue)
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{
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RNG->CRC_DIR = (SetValue);
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}
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uint32_t RNG_CRC_DIR_Read(void)
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{
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return (RNG->CRC_DIR);
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}
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/* CRC¼ÆËãÍê³É±êÖ¾£¬Èí¼þд0ÇåÁã (CRC calculation done)
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1£ºCRC¼ÆËãÍê³É
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0£ºCRC¼ÆËãδÍê³É Ïà¹Øº¯Êý */
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void RNG_CRC_SR_CRCDONE_Clr(void)
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{
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RNG->CRC_SR &= ~(RNG_CRC_SR_CRCDONE_Msk);
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}
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FlagStatus RNG_CRC_SR_CRCDONE_Chk(void)
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{
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if (RNG->CRC_SR & RNG_CRC_SR_CRCDONE_Msk)
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{
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return SET;
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}
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else
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{
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return RESET;
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}
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}
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void RNG_Deinit(void)
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{
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//RNG->CR = 0x00000000;
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//RNG->DOR = 0x00000000;
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//RNG->SR = 0x00000000;
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//RNG->CRC_CR = 0x00000000;
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//RNG->CRC_DIR = 0xFFFFFFFF;
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//RNG->CRC_SR = 0x00000000;
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}
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/******END OF FILE****/
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