STM32，仿照LL库，编写FLASH的LL库(内有完成代码)(STM32F0)

不知道为为什么,STM32 LL库并没有FLASH的库函数，于是决定写一个

LL库的特色，就是一个函数，只占用一个指令周期，比如，设置GPIO输出的状态，就是LL_GPIO_SetOutputPin();

__STATIC_INLINE void LL_GPIO_SetOutputPin(GPIO_TypeDef *GPIOx, uint32_t PinMask)
{WRITE_REG(GPIOx->BSRR, PinMask);
}

于是我根据这种风格，已经常用的操作写了一个.h和.c文件

头文件代码

#ifndef __STM32F0xx_LL_FLASH_EX_H
#define __STM32F0xx_LL_FLASH_EX_H#include "stm32f0xx.h"#define FLASH_FLAG_BSY             FLASH_SR_BSY            /*!< FLASH Busy flag                           */
#define FLASH_FLAG_PGERR           FLASH_SR_PGERR          /*!< FLASH Programming error flag    */
#define FLASH_FLAG_WRPERR          FLASH_SR_WRPERR         /*!< FLASH Write protected error flag          */
#define FLASH_FLAG_EOP             FLASH_SR_EOP            /*!< FLASH End of Operation flag               */#define FLASH_TYPEERASE_PAGES          FLASH_CR_PER         /*!< FLASH_CR_PER          */
#define FLASH_TYPEERASE_MASSERASE      FLASH_CR_MER            /*!< MASSERASE              */#if defined(STM32F030x6) || defined(STM32F030x8) || defined(STM32F031x6) || defined(STM32F038xx) \|| defined(STM32F051x8) || defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F058xx) || defined(STM32F070x6)
#define FLASH_PAGE_SIZE          0x400U
#endif /* STM32F030x6 || STM32F030x8 || STM32F031x6 || STM32F051x8 || STM32F042x6 || STM32F048xx || STM32F058xx || STM32F070x6 */#if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F070xB) \|| defined(STM32F091xC) || defined(STM32F098xx) || defined(STM32F030xC)
#define FLASH_PAGE_SIZE          0x800U
#endif /* STM32F071xB || STM32F072xB || STM32F078xx || STM32F091xC || STM32F098xx || STM32F030xC */typedef enum {ProgaraType_DATA64,ProgaraType_DATA32,ProgaraType_DATA16
}ProgaramDataType;typedef enum {\FLASH_Lock=1U,Flash_Unlock=!FLASH_Lock\
}FlashStates;/* Set the OBL_Launch bit to launch the option byte loading */
__STATIC_INLINE void LL_FLASH_SET_OBL_Launch(FLASH_TypeDef *FLASHx)
{SET_BIT(FLASHx->CR, FLASH_CR_OBL_LAUNCH);
}
__STATIC_INLINE void LL_FLASH_Lock(FLASH_TypeDef *FLASHx)
{SET_BIT(FLASHx->CR, FLASH_CR_LOCK);
}/* @brief  Set flash erase type.* @param  FLASH_TYPEERASE specifies the FLASH flags to clear.*          This parameter can be any combination of the following values:*            @arg @ref FLASH_TYPEERASE_PAGES         PAGES Erase*            @arg @ref FLASH_TYPEERASE_MASSERASE      FLASH Write protected error flag * @retval none*/__STATIC_INLINE void LL_FLASH_SetTypeErase(FLASH_TypeDef *FLASHx,uint32_t FLASH_TYPEERASE)
{SET_BIT(FLASHx->CR, FLASH_TYPEERASE);
}/* @brief  Set flash erase ADDR.*          This parameter can be any combination of the following values:*            @arg @ref EraseADDR         uint32_t value* @retval none*/__STATIC_INLINE void LL_FLASH_SetEraseADDR(FLASH_TypeDef *FLASHx,uint32_t EraseADDR)
{WRITE_REG(FLASHx->AR, EraseADDR);
}/* @brief  Set flash erase ADDR.*          This parameter can be any combination of the following values:*            @arg @ref EraseADDR         uint32_t value* @retval none*/__STATIC_INLINE void LL_FLASH_StartErase(FLASH_TypeDef *FLASHx)
{SET_BIT(FLASHx->CR, FLASH_CR_STRT);
}/* @brief  Clear the specified FLASH flag.* @param  __FLAG__ specifies the FLASH flags to clear.*          This parameter can be any combination of the following values:*            @arg @ref FLASH_FLAG_EOP         FLASH End of Operation flag *            @arg @ref FLASH_FLAG_WRPERR      FLASH Write protected error flag *            @arg @ref FLASH_FLAG_PGERR       FLASH Programming error flag* @retval none*/__STATIC_INLINE void LL_FLASH_ClearFlag(FLASH_TypeDef *FLASHx,uint32_t STATE_FLAG)
{WRITE_REG(FLASHx->SR, STATE_FLAG);
}/*get bit flash bsy*/
__STATIC_INLINE uint32_t LL_FLASH_IsActiveFlag_BSY(FLASH_TypeDef *FLASHx)
{return (READ_BIT(FLASHx->SR, FLASH_SR_BSY) == (FLASH_SR_BSY));
}
/*get end of operation bilt*/
__STATIC_INLINE uint32_t LL_FLASH_IsActiveFlag_EOP(FLASH_TypeDef *FLASHx)
{return (READ_BIT(FLASHx->SR, FLASH_SR_EOP) == (FLASH_SR_EOP));
}
/*clear end of operation bilt*/
__STATIC_INLINE void LL_FLASH_ClearFlag_EOP(FLASH_TypeDef *FLASHx)
{SET_BIT(FLASHx->SR, FLASH_SR_EOP);//EOP bit Set clear
}/* @brief  Set flash erase type.* @param  FLASH_TYPEERASE specifies the FLASH flags to clear.*          This parameter can be any combination of the following values:*            @arg @ref FLASH_TYPEERASE_PAGES         PAGES Erase*            @arg @ref FLASH_TYPEERASE_MASSERASE      FLASH Write protected error flag * @retval none*/
__STATIC_INLINE void LL_FLASH_DisenableErase(FLASH_TypeDef *FLASHx,uint32_t FLASH_TYPEERASE)
{CLEAR_BIT(FLASHx->CR, FLASH_TYPEERASE);
}/*EnableProgram*/
__STATIC_INLINE void LL_FLASH_EnableProgram(FLASH_TypeDef *FLASHx)
{SET_BIT(FLASHx->CR,FLASH_CR_PG);
}
/*DisenableProgram*/
__STATIC_INLINE void LL_FLASH_DisenableProgram(FLASH_TypeDef *FLASHx)
{CLEAR_BIT(FLASHx->CR,FLASH_CR_PG);
}
/*read flash's states of lock or unlock*/
__STATIC_INLINE FlashStates LL_FLASH_LockState(FLASH_TypeDef *FLASHx)
{return (FlashStates)(READ_BIT(FLASHx->CR,FLASH_CR_LOCK));
}
/*set key for flash*/
__STATIC_INLINE void LL_FLASh_SetKey(FLASH_TypeDef *FLASHx,uint32_t key)
{WRITE_REG(FLASH->KEYR,key);
}LL_StatusTypeDef LL_Flash_Unlock(void);
LL_StatusTypeDef LL_Flash_PageErase(uint32_t page_addr,uint16_t NbPages);
LL_StatusTypeDef LL_FLASH_Program(ProgaramDataType ProgramType,uint32_t flash_addr,uint64_t data);
#endif

C文件代码

#include "stm32f0xx_ll_flash_ex.h"void static LL_FLASH_Program_TwoBtye(uint32_t flash_addr,uint16_t data)
{LL_FLASH_EnableProgram(FLASH);*(__IO uint16_t*)(flash_addr) = data;
}LL_StatusTypeDef LL_Flash_Unlock(void)
{while (LL_FLASH_IsActiveFlag_BSY(FLASH))  {} if (LL_FLASH_LockState(FLASH)) { LL_FLASh_SetKey(FLASH,FLASH_KEY1);LL_FLASh_SetKey(FLASH,FLASH_KEY2);}return LL_OK;
}LL_StatusTypeDef LL_Flash_PageErase(uint32_t page_addr,uint16_t Nb)
{uint32_t End_addr =  10* FLASH_PAGE_SIZE +page_addr;uint32_t Start_addr = page_addr;for(;Start_addr < End_addr;(Start_addr += FLASH_PAGE_SIZE)){LL_FLASH_SetTypeErase(FLASH,FLASH_TYPEERASE_PAGES);LL_FLASH_SetEraseADDR(FLASH,Start_addr);LL_FLASH_StartErase(FLASH); while (LL_FLASH_IsActiveFlag_BSY(FLASH)) { } if (LL_FLASH_IsActiveFlag_EOP(FLASH)) { LL_FLASH_ClearFlag_EOP(FLASH);; } else{ return LL_ERROR;}LL_FLASH_DisenableErase(FLASH,FLASH_TYPEERASE_PAGES);}return LL_OK;
}LL_StatusTypeDef LL_FLASH_Program(ProgaramDataType ProgramType,uint32_t flash_addr,uint64_t data)
{uint8_t index = 0U;uint8_t nbiterations = 0U;if(ProgramType == ProgaraType_DATA16)nbiterations = 1U;else if(ProgramType == ProgaraType_DATA32)nbiterations = 2U;elsenbiterations = 4U;for(index = 0U; index < nbiterations; index++){LL_FLASH_Program_TwoBtye((flash_addr + (2U*index)), (uint16_t)(data >> (16U*index)));}while (LL_FLASH_IsActiveFlag_BSY(FLASH)) {}if (LL_FLASH_IsActiveFlag_EOP(FLASH))  {LL_FLASH_ClearFlag_EOP(FLASH);}else{return LL_ERROR;}LL_FLASH_DisenableProgram(FLASH);return LL_OK;
}

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STM32，仿照LL库，编写FLASH的LL库(内有完成代码)(STM32F0)

头文件代码

C文件代码

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