jia.txt.txt

加法的程序,很有用的大家快看看啊,最新的专家做的

unsigned char sck[19]={0,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,0};
unsigned char mosi[19]；
unsigned char miso[19]；

//发送1BIT数据
void Setbit(n)
{
    unsigned char value = 0;

    if(tck[n])
        value |= 0x01;

    if(mosi[n])
        value |= 0x02;
        
    DlPortWritePortUchar(0x378, value);
    value = DlPortReadPortUchar(0x379)；

    if(value & 0x80)
        miso[n] = 1；
    else
        miso[n] = 0;
}

//发送一字节数据，返回读出的数据
unsigned char SendByte(unsigned char data)
{
    unsigned char n,tmp,ret;
    ret = 0;
    for(n = 0; n < 19; n++)
        {miso[n] = 0;
         if(n==0 || n==18)
             mosi[n] = 0;
         else
             tmp = 1<<((n-1)/2);
             if((tmp & data) > 0)
                 mosi[n] = 1;
             else
                 mosi[n] = 0;
         Setbit(n);
         if(sck[n] == 1)
             {tmp = miso[n]<<((n-2)/2);
              ret |= tmp;
            }
        }    
    return(ret);
}

//编程使能
void EnableProg() 
{
    SendByte(0xac);
    SendByte(0x53);
    SendByte(0x55);//下面这两个数随意
    SendByte(0x55);    
}

//片擦除
void ChipErase()
{
    SendByte(0xac);
    SendByte(0x80);
    SendByte(0x55);//下面这两个数随意
    SendByte(0x55);
}

//字节读取
unsigned char ReadByte(unsigned short address)
{   
    unsigned char Hadd,Ladd,ret;
    Ladd = address & 0xff;
    Hadd = address >> 8;
    SendByte(0x20);
    SendByte(Hadd);
    SendByte(Ladd);
    ret = SendByte(0x55);
    return(ret);
}

//字节编程
void ReadByte(unsigned short address,unsigned char data)
{   
    unsigned char Hadd,Ladd;
    Ladd = address & 0xff;
    Hadd = address >> 8;
    SendByte(0x40);
    SendByte(Hadd);
    SendByte(Ladd);
    SendByte(data);
}

//写保护位
void WriteLockBits(unsigned char mode)
{
    SendByte(0xac);
    SendByte(0xe0 | mode);
    SendByte(0x55);
    SendByte(0x55);
}

//读保护位
unsigned char ReadLockBits(void)
{   unsigned char ret;
    SendByte(0x24);
    SendByte(0x55);
    SendByte(0x55);
    ret = SendByte(0x55);
    ret &= 0x1c;
    ret >>= 2;
    retrun (ret);     
}

//读标志字节
unsigned char ReadSignature(unsigned char address)
{   
    unsigned char tmp,ret;
    tmp = address << 1;
    SendByte(0x28);
    SendByte(tmp);
    tmp = (address &0x1) << 7;
    SendByte(tmp);
    ret = SendByte(0x55);
    return(ret);
}

//页读取
void ReadPage(unsigned char PageAdd,unsigned char *data)
{        
        int n;
        SendByte(0x28);
        SendByte(PageAdd);
        for(n = 0; n < 256; n++)
            *(data + n) = SendByte(0x55);
}

//页编程
void WritePage(unsigned char PageAdd,unsigned char *data)
{        
        int n;
        SendByte(0x50);
        SendByte(PageAdd);
        for(n = 0; n < 256; n++)
             SendByte(*(data +