269 lines
7.0 KiB
C
269 lines
7.0 KiB
C
#include "bsp_flash.h"
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#include "main.h"
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#include "string.h"
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//flash读写没有经过测试，谨慎使用，只是使得其没有报错
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static uint32_t ger_sector(uint32_t address);
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/**
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* @brief erase flash
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* @param[in] address: flash address
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* @param[in] len: page num
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* @retval none
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*/
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/**
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* @brief 擦除flash
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* @param[in] address: flash 地址
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* @param[in] len: 页数量
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* @retval none
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*/
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void flash_erase_address(uint32_t address, uint16_t len)
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{
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FLASH_EraseInitTypeDef flash_erase;
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uint32_t error;
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flash_erase.Sector = ger_sector(address);
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flash_erase.TypeErase = FLASH_TYPEERASE_SECTORS;
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flash_erase.VoltageRange = FLASH_VOLTAGE_RANGE_3;
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flash_erase.NbSectors = len;
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HAL_FLASH_Unlock();
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HAL_FLASHEx_Erase(&flash_erase, &error);
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HAL_FLASH_Lock();
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}
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/**
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* @brief write data to one page of flash
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* @param[in] start_address: flash address
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* @param[in] buf: data point
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* @param[in] len: data num
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* @retval success 0, fail -1
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*/
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/**
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* @brief 往一页flash写数据
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* @param[in] start_address: flash 地址
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* @param[in] buf: 数据指针
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* @param[in] len: 数据长度
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* @retval success 0, fail -1
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*/
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int8_t flash_write_single_address(uint32_t start_address, uint32_t *buf, uint32_t len)
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{
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static uint32_t uw_address;
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static uint32_t end_address;
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static uint32_t *data_buf;
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static uint32_t data_len;
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HAL_FLASH_Unlock();
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uw_address = start_address;
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end_address = get_next_flash_address(start_address);
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data_buf = buf;
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data_len = 0;
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while (uw_address <= end_address)
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{
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if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_FLASHWORD,uw_address, *data_buf) == HAL_OK)
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{
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uw_address += 4;
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data_buf++;
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data_len++;
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if (data_len == len)
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{
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break;
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}
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}
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else
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{
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HAL_FLASH_Lock();
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return -1;
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}
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}
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HAL_FLASH_Lock();
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return 0;
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}
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/**
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* @brief write data to some pages of flash
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* @param[in] start_address: flash start address
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* @param[in] end_address: flash end address
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* @param[in] buf: data point
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* @param[in] len: data num
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* @retval success 0, fail -1
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*/
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/**
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* @brief 往几页flash写数据
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* @param[in] start_address: flash 开始地址
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* @param[in] end_address: flash 结束地址
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* @param[in] buf: 数据指针
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* @param[in] len: 数据长度
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* @retval success 0, fail -1
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*/
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int8_t flash_write_muli_address(uint32_t start_address, uint32_t end_address, uint32_t *buf, uint32_t len)
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{
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uint32_t uw_address = 0;
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uint32_t *data_buf;
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uint32_t data_len;
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HAL_FLASH_Unlock();
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uw_address = start_address;
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data_buf = buf;
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data_len = 0;
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while (uw_address <= end_address)
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{
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if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_FLASHWORD,uw_address, *data_buf) == HAL_OK)
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{
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uw_address += 4;
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data_buf++;
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data_len++;
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if (data_len == len)
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{
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break;
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}
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}
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else
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{
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HAL_FLASH_Lock();
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return -1;
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}
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}
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HAL_FLASH_Lock();
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return 0;
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}
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/**
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* @brief read data for flash
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* @param[in] address: flash address
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* @param[out] buf: data point
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* @param[in] len: data num
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* @retval none
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*/
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/**
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* @brief 从flash读数据
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* @param[in] start_address: flash 地址
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* @param[out] buf: 数据指针
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* @param[in] len: 数据长度
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* @retval none
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*/
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void flash_read(uint32_t address, uint32_t *buf, uint32_t len)
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{
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memcpy(buf, (void*)address, len *4);
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}
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/**
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* @brief get the sector number of flash
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* @param[in] address: flash address
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* @retval sector number
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*/
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/**
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* @brief 获取flash的sector号
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* @param[in] address: flash 地址
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* @retval sector号
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*/
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static uint32_t ger_sector(uint32_t address)
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{
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uint32_t sector = 0;
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if ((address < ADDR_FLASH_SECTOR_1) && (address >= ADDR_FLASH_SECTOR_0))
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{
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sector = FLASH_SECTOR_0;
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}
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else if ((address < ADDR_FLASH_SECTOR_2) && (address >= ADDR_FLASH_SECTOR_1))
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{
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sector = FLASH_SECTOR_1;
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}
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else if ((address < ADDR_FLASH_SECTOR_3) && (address >= ADDR_FLASH_SECTOR_2))
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{
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sector = FLASH_SECTOR_2;
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}
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else if ((address < ADDR_FLASH_SECTOR_4) && (address >= ADDR_FLASH_SECTOR_3))
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{
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sector = FLASH_SECTOR_3;
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}
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else if ((address < ADDR_FLASH_SECTOR_5) && (address >= ADDR_FLASH_SECTOR_4))
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{
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sector = FLASH_SECTOR_4;
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}
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else if ((address < ADDR_FLASH_SECTOR_6) && (address >= ADDR_FLASH_SECTOR_5))
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{
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sector = FLASH_SECTOR_5;
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}
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else if ((address < ADDR_FLASH_SECTOR_7) && (address >= ADDR_FLASH_SECTOR_6))
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{
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sector = FLASH_SECTOR_6;
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}
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else if ((address < ADDR_FLASH_SECTOR_8) && (address >= ADDR_FLASH_SECTOR_7))
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{
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sector = FLASH_SECTOR_7;
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}
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return sector;
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}
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/**
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* @brief get the next page flash address
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* @param[in] address: flash address
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* @retval next page flash address
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*/
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/**
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* @brief 获取下一页flash地址
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* @param[in] address: flash 地址
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* @retval 下一页flash地址
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*/
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uint32_t get_next_flash_address(uint32_t address)
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{
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uint32_t sector = 0;
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if ((address < ADDR_FLASH_SECTOR_1) && (address >= ADDR_FLASH_SECTOR_0))
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{
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sector = ADDR_FLASH_SECTOR_1;
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}
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else if ((address < ADDR_FLASH_SECTOR_2) && (address >= ADDR_FLASH_SECTOR_1))
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{
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sector = ADDR_FLASH_SECTOR_2;
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}
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else if ((address < ADDR_FLASH_SECTOR_3) && (address >= ADDR_FLASH_SECTOR_2))
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{
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sector = ADDR_FLASH_SECTOR_3;
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}
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else if ((address < ADDR_FLASH_SECTOR_4) && (address >= ADDR_FLASH_SECTOR_3))
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{
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sector = ADDR_FLASH_SECTOR_4;
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}
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else if ((address < ADDR_FLASH_SECTOR_5) && (address >= ADDR_FLASH_SECTOR_4))
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{
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sector = ADDR_FLASH_SECTOR_5;
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}
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else if ((address < ADDR_FLASH_SECTOR_6) && (address >= ADDR_FLASH_SECTOR_5))
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{
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sector = ADDR_FLASH_SECTOR_6;
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}
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else if ((address < ADDR_FLASH_SECTOR_7) && (address >= ADDR_FLASH_SECTOR_6))
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{
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sector = ADDR_FLASH_SECTOR_7;
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}
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else if ((address < ADDR_FLASH_SECTOR_8) && (address >= ADDR_FLASH_SECTOR_7))
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{
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sector = ADDR_FLASH_SECTOR_8;
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}
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else if ((address < ADDR_FLASH_SECTOR_9) && (address >= ADDR_FLASH_SECTOR_8))
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{
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sector = ADDR_FLASH_SECTOR_9;
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}
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else if ((address < ADDR_FLASH_SECTOR_10) && (address >= ADDR_FLASH_SECTOR_9))
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{
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sector = ADDR_FLASH_SECTOR_10;
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}
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else if ((address < ADDR_FLASH_SECTOR_11) && (address >= ADDR_FLASH_SECTOR_10))
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{
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sector = ADDR_FLASH_SECTOR_11;
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}
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else /*(address < FLASH_END_ADDR) && (address >= ADDR_FLASH_SECTOR_23))*/
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{
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sector = FLASH_END_ADDR;
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}
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return sector;
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}
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