bsp_flash.c
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/**
******************************************************************************
* @file bsp_flash.c
* @version V1.0
* @date 2018-06-18
* @brief 配置FLASH读写
*
* @company 深圳炜世科技有限公司
* @information WIZnet W5100s官方代理商，全程技术支持，价格优势大！
* @website www.wisioe.com
* @forum www.w5100s.com
* @qqGroup 579842114
******************************************************************************
*/
#include "bsp_flash.h"
#include <string.h>
//#include "stm32f10x_flash.h"
//#include "stm32f2xx.h"
#include "stm32f4xx.h"
#define STARTADDR 0x0807F800
volatile FLASH_Status FLASHStatus = FLASH_BUSY; //Flash操作状态变量
/* Base address of the Flash sectors */
#define ADDR_FLASH_SECTOR_0 ((uint32_t)0x08000000) /* Base @ of Sector 0, 16 Kbytes */
#define ADDR_FLASH_SECTOR_1 ((uint32_t)0x08004000) /* Base @ of Sector 1, 16 Kbytes */
#define ADDR_FLASH_SECTOR_2 ((uint32_t)0x08008000) /* Base @ of Sector 2, 16 Kbytes */
#define ADDR_FLASH_SECTOR_3 ((uint32_t)0x0800C000) /* Base @ of Sector 3, 16 Kbytes */
#define ADDR_FLASH_SECTOR_4 ((uint32_t)0x08010000) /* Base @ of Sector 4, 64 Kbytes */
#define ADDR_FLASH_SECTOR_5 ((uint32_t)0x08020000) /* Base @ of Sector 5, 128 Kbytes */
#define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08040000) /* Base @ of Sector 6, 128 Kbytes */
#define ADDR_FLASH_SECTOR_7 ((uint32_t)0x08060000) /* Base @ of Sector 7, 128 Kbytes */
#define ADDR_FLASH_SECTOR_8 ((uint32_t)0x08080000) /* Base @ of Sector 8, 128 Kbytes */
#define ADDR_FLASH_SECTOR_9 ((uint32_t)0x080A0000) /* Base @ of Sector 9, 128 Kbytes */
#define ADDR_FLASH_SECTOR_10 ((uint32_t)0x080C0000) /* Base @ of Sector 10, 128 Kbytes */
#define ADDR_FLASH_SECTOR_11 ((uint32_t)0x080E0000) /* Base @ of Sector 11, 128 Kbytes */
/**
* @brief Gets the sector of a given address
* @param None
* @retval The sector of a given address
*/
uint32_t GetSector(uint32_t Address)
{
uint32_t sector = 0;
if((Address < ADDR_FLASH_SECTOR_1) && (Address >= ADDR_FLASH_SECTOR_0))
{
sector = FLASH_Sector_0;
}
else if((Address < ADDR_FLASH_SECTOR_2) && (Address >= ADDR_FLASH_SECTOR_1))
{
sector = FLASH_Sector_1;
}
else if((Address < ADDR_FLASH_SECTOR_3) && (Address >= ADDR_FLASH_SECTOR_2))
{
sector = FLASH_Sector_2;
}
else if((Address < ADDR_FLASH_SECTOR_4) && (Address >= ADDR_FLASH_SECTOR_3))
{
sector = FLASH_Sector_3;
}
else if((Address < ADDR_FLASH_SECTOR_5) && (Address >= ADDR_FLASH_SECTOR_4))
{
sector = FLASH_Sector_4;
}
else if((Address < ADDR_FLASH_SECTOR_6) && (Address >= ADDR_FLASH_SECTOR_5))
{
sector = FLASH_Sector_5;
}
else if((Address < ADDR_FLASH_SECTOR_7) && (Address >= ADDR_FLASH_SECTOR_6))
{
sector = FLASH_Sector_6;
}
else if((Address < ADDR_FLASH_SECTOR_8) && (Address >= ADDR_FLASH_SECTOR_7))
{
sector = FLASH_Sector_7;
}
else if((Address < ADDR_FLASH_SECTOR_9) && (Address >= ADDR_FLASH_SECTOR_8))
{
sector = FLASH_Sector_8;
}
else if((Address < ADDR_FLASH_SECTOR_10) && (Address >= ADDR_FLASH_SECTOR_9))
{
sector = FLASH_Sector_9;
}
else if((Address < ADDR_FLASH_SECTOR_11) && (Address >= ADDR_FLASH_SECTOR_10))
{
sector = FLASH_Sector_10;
}
else/*(Address < FLASH_END_ADDR) && (Address >= ADDR_FLASH_SECTOR_11))*/
{
sector = FLASH_Sector_11;
}
return sector;
}
//////////////////////////////////////////////////////////////////////////////////
// Name: WriteFlashData
//
// Function: 向内部Flash写入数据
//
// Input: WriteAddress：数据要写入的目标地址（偏移地址）
// data[]： 写入的数据首地址
// num： 写入数据的个数
//////////////////////////////////////////////////////////////////////////////////
void WriteFlashData(uint32_t WriteAddress, uint8_t data[], uint32_t num)
{
uint32_t i = 0;
uint16_t temp = 0;
uint32_t StartSector = 0;
// FLASH_UnlockBank1(); //解锁flash
FLASH_Unlock();
// FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPRTERR);
// FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR);
FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
// FLASHStatus = FLASH_BUSY; //清空状态指示标志位
// FLASHStatus = FLASH_ErasePage(STARTADDR);//擦除整页
StartSector = GetSector(STARTADDR);
if (FLASH_EraseSector(StartSector, VoltageRange_3) == FLASH_COMPLETE)
// if(FLASHStatus == FLASH_COMPLETE) //flash操作完成
{
FLASHStatus = FLASH_BUSY; //清空状态指示标志位
for(i=0; i<num; i++)
{
temp = (uint16_t)data[i];
FLASHStatus = FLASH_ProgramHalfWord(STARTADDR+WriteAddress+i*2, temp);//写入数据
}
}
FLASHStatus = FLASH_BUSY; //清空状态指示标志位
// FLASH_LockBank1(); //锁定flash
FLASH_Lock();
}
//////////////////////////////////////////////////////////////////////////////////
// Name: ReadFlashNBtye
//
// Function: 从内部Flash读取N字节数据
//
// Input: ReadAddress：数据地址（偏移地址）
// ReadBuf：读取到的数据存放位置指针
// ReadNum：读取字节个数
//
// Output: 读取的字节数
//////////////////////////////////////////////////////////////////////////////////
int ReadFlashNBtye(uint32_t ReadAddress, uint8_t *ReadBuf, int32_t ReadNum)
{
int DataNum = 0;
ReadAddress = (uint32_t)STARTADDR + ReadAddress;
while(DataNum < ReadNum)
{
*(ReadBuf + DataNum) = *(__IO uint16_t*) ReadAddress++;
DataNum++;
ReadAddress++;
}
return DataNum;
}