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#include "include.h"
#include "main.h"
int main(void)
{
u32 i=0;
u8 UpdaFlage = 0;//是否有更新程序
__IO u32 UpdaCnt=0;//程序的大小
u16 ReadDat16=0;//讀數(shù)據(jù)間接變量
__IO u32 addr1 = FLASH_APP1_ADDR;//APP程序地址
__IO u32 addr2 = FLASH_APP2_ADDR;//存儲(chǔ)用戶程序地址
__IO u32 UserDataAddr = FLASH_DATA_ADDR;//用戶數(shù)據(jù)地址
NVIC_Configuration();
Led_Gpio_Init();
Timer2_Config();
uart_init(57600); //串口初始化為115200
STMFLASH_Read(UserDataAddr,&ReadDat16,1);//判斷是否有更新程序
if(ReadDat16 == 0x55)
{
UpdaFlage = 1;//有更新程序
UserDataAddr +=2;
STMFLASH_Read(UserDataAddr,&ReadDat16,1);//程序數(shù)據(jù)個(gè)數(shù)高位
UpdaCnt = (u32)ReadDat16<<16;
UserDataAddr +=2;
STMFLASH_Read(UserDataAddr,&ReadDat16,1);//程序數(shù)據(jù)個(gè)數(shù)低位
UpdaCnt = UpdaCnt + ReadDat16;
printf("有更新程序,數(shù)據(jù)大小=%d\r\n",UpdaCnt);
}
else
{
printf("擦除存儲(chǔ)用戶程序地址Flash\r\n");
for(i=0;i<40;i++)
{
STMFLASH_Erase(addr2,512);//擦除addr2地址以及以上40頁(yè)
addr2 +=1024;
}
}
addr2 = FLASH_APP2_ADDR;//存儲(chǔ)用戶程序地址
rbCreate(&pRb,ReceBuff,USART_REC_LEN);//創(chuàng)建接收環(huán)形隊(duì)列
DelayInit();
printf("開(kāi)始進(jìn)入主函數(shù)\r\n");
while(1)
{
if(UpdaFlage == 1)//有更新程序
{
addr1 = FLASH_APP1_ADDR;//APP程序地址
for(i=0;i<40;i++)
{
STMFLASH_Erase(addr1,512);//擦除FLASH_APP1_ADDR地址以及以上40頁(yè)
addr1 +=1024;
}
printf("擦除了FLASH_APP1_ADDR....\r\n");
addr1 = FLASH_APP1_ADDR;//APP程序地址
addr2 = FLASH_APP2_ADDR;//存儲(chǔ)用戶程序地址
printf("正在拷貝程序....\r\n");
for(i=0;i<UpdaCnt/2;i++)
{
STMFLASH_Read(addr2,&ReadDat16,1);
STMFLASH_Write(addr1,&ReadDat16,1);
addr1+=2;
addr2+=2;
}
printf("程序已經(jīng)拷貝....\r\n");
printf("擦除存儲(chǔ)用戶程序地址Flash\r\n");
addr2 = FLASH_APP2_ADDR;//存儲(chǔ)用戶程序地址
for(i=0;i<40;i++)
{
STMFLASH_Erase(addr2,512);//擦除addr2地址以及以上40頁(yè)
addr2 +=1024;
}
if(((*(vu32*)(FLASH_APP1_ADDR+4))&0xFF000000)==0x08000000)//判斷是否為0X08XXXXXX.
{
printf("準(zhǔn)備執(zhí)行新的APP代碼!!\r\n");
iap_load_app(FLASH_APP1_ADDR);//執(zhí)行FLASH APP代碼
}
else
{
UserDataAddr = FLASH_DATA_ADDR;//存儲(chǔ)其余的數(shù)據(jù)地址
ReadDat16 = 0x00;//寫入標(biāo)志告訴IAP程序有可更新的用戶程序
STMFLASH_Write(UserDataAddr,&ReadDat16,1);
UserDataAddr+=2;
STMFLASH_Write(UserDataAddr,&ReadDat16,1);
UserDataAddr+=2;
STMFLASH_Write(UserDataAddr,&ReadDat16,1);
UserDataAddr+=2;
printf("拷貝的程序非FLASH應(yīng)用程序,無(wú)法執(zhí)行!RstMCU\r\n");
Reset_MCU();//復(fù)位重啟CPU
}
UpdaFlage = 0;
}
else
{
if(((*(vu32*)(FLASH_APP1_ADDR+4))&0xFF000000)==0x08000000)//判斷是否為0X08XXXXXX.
{
printf("準(zhǔn)備執(zhí)行自帶的APP代碼!!\r\n");
iap_load_app(FLASH_APP1_ADDR);//執(zhí)行FLASH APP代碼
}
else
{
if(SysTickCnt2>=1000)
{
SysTickCnt2 = 0;
printf("等待接收用戶程序!!!!\r\n");
PCout(13) = ~PCout(13);
}
}
}
/***************************************/
/***************************************/
/***************************************/
if(rbCanRead(&pRb)>1)
{
rbRead(&pRb, &ReadDat, 2);//讀取兩個(gè)數(shù)據(jù)
ReadDat16 = (u16)ReadDat[1]<<8;
ReadDat16 = ReadDat16|ReadDat[0];
STMFLASH_Write(addr2,&ReadDat16,1);
addr2+=2;
}
if(Usart1Flage == 1)//數(shù)據(jù)接收完成
{
addr2 = FLASH_APP2_ADDR;//存儲(chǔ)數(shù)據(jù)的地址
Usart1Flage =0;//清零
if(Overflow==1)//如果中途溢出了
{
printf("程序中途溢出,準(zhǔn)備復(fù)位重啟!!");
UserDataAddr = FLASH_DATA_ADDR;//存儲(chǔ)其余的數(shù)據(jù)地址
ReadDat16 = 0x00;//寫入標(biāo)志告訴IAP程序有可更新的用戶程序
STMFLASH_Write(UserDataAddr,&ReadDat16,1);
UserDataAddr+=2;
STMFLASH_Write(UserDataAddr,&ReadDat16,1);
UserDataAddr+=2;
STMFLASH_Write(UserDataAddr,&ReadDat16,1);
UserDataAddr+=2;
Reset_MCU();//復(fù)位重啟CPU
}
if(((*(vu32*)(FLASH_APP2_ADDR+4))&0xFF000000)==0x08000000)//判斷是否為0X08XXXXXX.
{
printf("準(zhǔn)備執(zhí)行APP代碼!!\r\n");
UserDataAddr = FLASH_DATA_ADDR;//存儲(chǔ)其余的數(shù)據(jù)地址
ReadDat16 = 0x55;//寫入標(biāo)志告訴IAP程序有可更新的用戶程序
STMFLASH_Write(UserDataAddr,&ReadDat16,1);
UserDataAddr+=2;
printf("寫入0x55標(biāo)志!!\r\n");
ReadDat16 = (u16)((Usart1RecCntCopy>>16)&0xffff);//存儲(chǔ)接收到多少數(shù)據(jù)高位
STMFLASH_Write(UserDataAddr,&ReadDat16,1);
UserDataAddr+=2;
ReadDat16 = (u16)(Usart1RecCntCopy&0xffff);//存儲(chǔ)接收到多少數(shù)據(jù)低位
STMFLASH_Write(UserDataAddr,&ReadDat16,1);
UserDataAddr+=2;
Usart1RecCntCopy = 0;
printf("開(kāi)始復(fù)位重啟!!\r\n");
Reset_MCU();
}
else
{
printf("非FLASH應(yīng)用程序,無(wú)法執(zhí)行!\r\n");
Reset_MCU();
}
// printf("Cnt=%d\r\n",Usart1RecCntCopy);
// for(i=0;i<Usart1RecCntCopy/2;i++)
// {
// STMFLASH_Read(addr1,&ReadDat16,1);
// addr1+=2;//偏移2048 16=2*8.所以要乘以2.
// if((ReadDat16&0x00ff)<=15)
// {
// printf("0%x ",ReadDat16&0x00ff);
// }
// else
// {
// printf("%x ",ReadDat16&0x00ff);
// }
//
// if((ReadDat16>>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頁(yè)
// addr1 +=2048;
// }
// addr1 = FLASH_APP1_ADDR;
}
}
}

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