[应用相关] 关于STM32 IAP

voidUSART1_IRQHandler(void)//串口1中断服务程序

{

u8 Res;

if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)//接收中断(接收到的数据必须是0x0d 0x0a结尾)

{

Res=USART_ReceiveData(USART1);//读取接收到的数据

PutData(&Res,1);//把数据存入队列

Usart1RecCnt ++;//数据个数

}



}

/*系统定时器中断*/voidSysTick_Handler(void)



{



SysTickCnt++;



SysTickCnt1++;



SysTickCnt2++;if(SysTickCnt1>=10)//每隔10毫秒检测一次



{



SysTickCnt1=0;if(Usart1RecCnt)//如果接收到数据了



{if(IdleCnt ==Usart1RecCnt)//10ms时间数据没了变化



{



Usart1RecCntCopy=Usart1RecCnt;//拷贝数据个数



Usart1RecCnt=0;//清零数据个数



IdleCnt=0;//清零



Usart1Flage=1;//接收到一条数据//rbDelete(&pRb);测试的时候销毁//rbCreate(&pRb,ReceBuff,USART_REC_LEN);//创建接收环形队列}else{



IdleCnt=Usart1RecCnt;



}



}



}



}

if(rbCanRead(&pRb)>1)//如果环形队列里面的数据个数大于1



{



rbRead(&pRb, &ReadDat,2);//读取两个数据ReadDat16 = (u16)ReadDat[1]<<8;



ReadDat16= ReadDat16|ReadDat[0];



STMFLASH_Write(addr2,&ReadDat16,1);



addr2+=2;



}

if(Usart1Flage ==1)//数据接收完成{



addr2= FLASH_APP2_ADDR;//存储数据的地址Usart1Flage =0;//清零if(((*(vu32*)(FLASH_APP2_ADDR+4))&0xFF000000)==0x08000000)//判断是否为0X08XXXXXX.{



printf("准备执行APP代码!!\r\n");



UserDataAddr= FLASH_DATA_ADDR;//存储其余的数据地址ReadDat16 =0x55;//写入标志告诉IAP程序有可更新的用户程序STMFLASH_Write(UserDataAddr,&ReadDat16,1);



UserDataAddr+=2;



printf("写入0x55标志!!\r\n");



ReadDat16= (u16)((Usart1RecCntCopy>>16)&0xffff);//存储接收到多少数据高位STMFLASH_Write(UserDataAddr,&ReadDat16,1);



UserDataAddr+=2;



ReadDat16= (u16)(Usart1RecCntCopy&0xffff);//存储接收到多少数据低位STMFLASH_Write(UserDataAddr,&ReadDat16,1);



UserDataAddr+=2;



Usart1RecCntCopy=0;



printf("开始复位重启!!\r\n");



Reset_MCU();



}else{



printf("非FLASH应用程序,无法执行!\r\n");



}//printf("Cnt=%d\r\n",Usart1RecCntCopy);//for(i=0;i>8)<=15)//{//printf("0%x ",ReadDat16>>8);//}//else//{//printf("%x ",ReadDat16>>8);//}//}//addr1 = FLASH_APP1_ADDR;//for(i=0;i<40;i++)//{//STMFLASH_Erase(addr1,1024);//擦除FLASH_APP1_ADDR地址以及以上40页//addr1 +=2048;//}//addr1 = FLASH_APP1_ADDR;}

typedef union Resolver_I{longData;charData_Table[4];



}Resolver_iData;



typedef union Resolver_f{floatData;charData_Table[4];}Resolver_fData;



Resolver_iData Resolver_7758;  //解析7758数据



Resolver_fData Resolver_Usart; //解析串口数据

if(AppFlage ==1)//接收到更新程序{if(rbCanRead(&pRb)>1)



{



rbRead(&pRb, &ReadDat,2);//读取两个数据ReadDat16 = (u16)ReadDat[1]<<8;



ReadDat16= ReadDat16|ReadDat[0];



STMFLASH_Write(addr2,&ReadDat16,1);



addr2+=2;



}



}elseif(AppFlage ==0)



{if(rbCanRead(&pRb)==8)



{



rbRead(&pRb, &TestData,8);//读取数据if(TestData[3] ==0x20&& TestData[7] ==0x08)//判断是否是更新程序{



AppFlage=1;//要更新程序for(i=0;i<4;i++)//先写入这八位数据{



ReadDat16= (u16)TestData[(i<<1)+1]<<8;



ReadDat16= ReadDat16|TestData[i<<1];



STMFLASH_Write(addr2,&ReadDat16,1);



addr2+=2;



}



}



}



}