新增FLASH.c.h文件

system_Template/FLASH.c

@@ -0,0 +1,113 @@
+#include "main.h"
+
+//读取指定地址的半字(16位数据)
+//faddr:读地址(此地址必须为2的倍数!!)
+//返回值:对应数据.
+u16 STMFLASH_ReadHalfWord(u32 faddr)
+{
+	return *(vu16*)faddr; 
+}
+//不检查的写入
+//WriteAddr:起始地址
+//pBuffer:数据指针
+//NumToWrite:半字(16位)数   
+void STMFLASH_Write_NoCheck(u32 WriteAddr,u16 *pBuffer,u16 NumToWrite)   
+{ 			 		 
+	u16 i;
+	for(i=0;i<NumToWrite;i++)
+	{
+		FLASH_ProgramHalfWord(WriteAddr,pBuffer[i]);
+	    WriteAddr+=2;//地址增加2.
+	}  
+} 
+//从指定地址开始写入指定长度的数据
+//WriteAddr:起始地址(此地址必须为2的倍数!!)
+//pBuffer:数据指针
+//NumToWrite:半字(16位)数(就是要写入的16位数据的个数.)
+#if STM32_FLASH_SIZE<256
+#define STM_SECTOR_SIZE 1024 //字节
+#else 
+#define STM_SECTOR_SIZE	2048
+#endif		 
+u16 STMFLASH_BUF[STM_SECTOR_SIZE/2];//最多是2K字节
+void STMFLASH_Write(u32 WriteAddr,u16 *pBuffer,u16 NumToWrite)	
+{
+	u32 secpos;	   //扇区地址
+	u16 secoff;	   //扇区内偏移地址(16位字计算)
+	u16 secremain; //扇区内剩余地址(16位字计算)	   
+ 	u16 i;    
+	u32 offaddr;   //去掉0X08000000后的地址
+	if(WriteAddr<STM32_FLASH_BASE||(WriteAddr>=(STM32_FLASH_BASE+1024*STM32_FLASH_SIZE)))return;//非法地址
+	FLASH_Unlock();						//解锁
+	offaddr=WriteAddr-STM32_FLASH_BASE;		//实际偏移地址.
+	secpos=offaddr/STM_SECTOR_SIZE;			//扇区地址  0~127 for STM32F103RBT6
+	secoff=(offaddr%STM_SECTOR_SIZE)/2;		//在扇区内的偏移(2个字节为基本单位.)
+	secremain=STM_SECTOR_SIZE/2-secoff;		//扇区剩余空间大小   
+	if(NumToWrite<=secremain)secremain=NumToWrite;//不大于该扇区范围
+	while(1) 
+	{	
+		STMFLASH_Read(secpos*STM_SECTOR_SIZE+STM32_FLASH_BASE,STMFLASH_BUF,STM_SECTOR_SIZE/2);//读出整个扇区的内容
+		for(i=0;i<secremain;i++)//校验数据
+		{
+			if(STMFLASH_BUF[secoff+i]!=0XFFFF)break;//需要擦除  	  
+		}
+		if(i<secremain)//需要擦除
+		{
+			FLASH_ErasePage(secpos*STM_SECTOR_SIZE+STM32_FLASH_BASE);//擦除这个扇区
+			for(i=0;i<secremain;i++)//复制
+			{
+				STMFLASH_BUF[i+secoff]=pBuffer[i];	  
+			}
+			STMFLASH_Write_NoCheck(secpos*STM_SECTOR_SIZE+STM32_FLASH_BASE,STMFLASH_BUF,STM_SECTOR_SIZE/2);//写入整个扇区  
+		}else STMFLASH_Write_NoCheck(WriteAddr,pBuffer,secremain);//写已经擦除了的,直接写入扇区剩余区间. 				   
+		if(NumToWrite==secremain)break;//写入结束了
+		else//写入未结束
+		{
+			secpos++;				//扇区地址增1
+			secoff=0;				//偏移位置为0 	 
+			pBuffer+=secremain;  	//指针偏移
+			WriteAddr+=secremain+2;	//写地址偏移	   
+			NumToWrite-=secremain;	//字节(16位)数递减
+			if(NumToWrite>(STM_SECTOR_SIZE/2))secremain=STM_SECTOR_SIZE/2;//下一个扇区还是写不完
+			else secremain=NumToWrite;//下一个扇区可以写完了
+		}	 
+	};	
+	FLASH_Lock();//上锁
+}
+//从指定地址开始读出指定长度的数据
+//ReadAddr:起始地址
+//pBuffer:数据指针
+//NumToWrite:半字(16位)数
+void STMFLASH_Read(u32 ReadAddr,u16 *pBuffer,u16 NumToRead)   	
+{
+	u16 i;
+	for(i=0;i<NumToRead;i++)
+	{
+		pBuffer[i]=STMFLASH_ReadHalfWord(ReadAddr);//读取2个字节.
+		ReadAddr+=2;
+	}
+}
+#define LockAddr		0x800FF10
+uint16_t LockNum = 0;
+// 程序运行锁
+// num 允许重启的次数
+uint8_t SystemRunLock(uint8_t num)
+{
+	STMFLASH_Read(LockAddr, &LockNum, 1);
+	DELAYClass.DelayMs(5);
+	if(LockNum > 255)
+	{
+		LockNum = 0;
+		STMFLASH_Write(LockAddr, &LockNum, 1);
+		DELAYClass.DelayMs(5);
+		NVIC_SystemReset();
+	}
+	else
+	{
+		LockNum++;
+		STMFLASH_Write(LockAddr, &LockNum, 1);
+		if((num == 0) || (LockNum <= num)) return 1;
+	}
+	return 0;
+}
+

system_Template/FLASH.h

@@ -0,0 +1,18 @@
+#ifndef __FLASH_H__
+#define __FLASH_H__
+
+#include "main.h" 
+
+//用户根据自己的需要设置
+#define STM32_FLASH_SIZE 64 	 		//所选STM32的FLASH容量大小(单位为K)
+//FLASH起始地址
+#define STM32_FLASH_BASE 0x08000000 	//STM32 FLASH的起始地址
+
+
+u16 STMFLASH_ReadHalfWord(u32 faddr);		  //读出半字  
+void STMFLASH_Write_NoCheck(u32 WriteAddr,u16 *pBuffer,u16 NumToWrite);
+void STMFLASH_Write(u32 WriteAddr,u16 *pBuffer,u16 NumToWrite);		//从指定地址开始写入指定长度的数据
+void STMFLASH_Read(u32 ReadAddr,u16 *pBuffer,u16 NumToRead);   		//从指定地址开始读出指定长度的数据
+uint8_t SystemRunLock(uint8_t num);
+						   
+#endif