IAP_WITH_LCD/USER/id.c

/*******************************************************************
* id.c
*
********************************************************************/
#include <includes.h>

#define ID_BASE_ADDR (0x1FFFF7E8ul)

unsigned char g_ucRand=0;
//
//unsigned char aucSTM32ID1[12];
//unsigned char aucSTM32SN1[12];
//unsigned char aucSTM32ID2[12];
//unsigned char aucSTM32SN2[12];
//unsigned char aucSTM32ID3[12];
//unsigned char aucSTM32SN3[12];
//unsigned char g_aucSTM32ID[12];
//
///***************************************************************
//*
//***************************************************************/
//static const u32 apulSTM32IDAddr1[3]={
//	0x115a7ef8ul,0x1F00123ul,ID_BASE_ADDR
//};
//static const unsigned char apucSNTab1[12]={
//	0x12,0x98,0x32,0x76,0xa1,0x8b,0xf1,0x13,0x5a,0x21,0x01,0x32
//};
///*
//index must be 1
//*/
//void GetSTM32ID1(int index)
//{
//	int i=index;
//	int j=i+1;
//	unsigned char data;
//	unsigned char *p;
//	u32 addr=apulSTM32IDAddr1[j];	
//	for(i=0;i<12;i++){
//		p= (unsigned char *)addr;
//		data=*p;
//		aucSTM32ID1[i]=data ^ apucSNTab1[i];
//		p++;	
//	}	
//}
//void CheckSTM32ID1(void)
//{
//	int i;
//	//read from eeprom
////	EEPROM_ReadS(EEPROM_ID_SN1,aucSTM32SN1,12);
//    //check
//	for(i=0;i<12;i++){
//		if(aucSTM32SN1[i]!=aucSTM32ID1[i])break;
//	}
//	if(i!=12){
//		//while(1);
//		for(i=0;i<1000;i++){
//			if(i==900)i=0;
//		}
//	}
//}
//
//
//
//
//void GetSTM32ID(unsigned char *pID);
//void CreateKey(unsigned char *pKey, unsigned char *pID);
//unsigned char SaveKey(unsigned char *pKey);

/***********************************************************
* 函数：GetSTM32ID
* 参数：1、*pID 读取的ID存放指针，12字节ID
* 功能：获取本芯片内部出厂绑定的ID
***********************************************************/
void GetSTM32ID(unsigned char *pID)
{
    unsigned char i = 0;
	u32 addr = ID_BASE_ADDR; 
	for(i = 0; i < 12; i++)
	{
	    *pID = *(u32 *)addr;   
		pID++;
		addr++; 
	}    
}
/************************************************************
*
*************************************************************/
unsigned char GetRandBySTM32ID(void)
{
	unsigned char id[12];
	unsigned char rand=0x58;//种子
	int i;
	GetSTM32ID(id);
	for(i=0;i<12;i++){
		rand^=id[i];	
	}
	if(rand==0x00)rand=0x58;
	if(rand==0xff)rand=0x85;
	return rand;
}





















/*********************************************************************/