Subversion Repositories mips789

/*  RS-232 example */

/*  Compiles with Microsoft Visual C++ 5.0/6.0 */

/*  (c) fpga4fun.com KNJN LLC - 2003, 2004, 2005, 2006 */

/*  modified by Liwei 2007-9-2 */

#include "stdio.h" 

#include "windows.h" 

#include "conio.h" 

#define MAX_PRG_SIZE 0x1d00 

#define DEFAULT_BAUD_RATE 38400 

/*the two functions listed between are added by Liwei 2007-8-29*/

char HEX[]="0123456789ABCDEF" ;

char hex[]="0123456789abcdef" ;

unsigned char hex2byte(char hex_char)

{

    unsigned char i ;

    for(i=0;i<16;++i)if(HEX[i]==hex_char)return i ;

    for(i=0;i<16;++i)if(hex[i]==hex_char)return i ;

    return 0 ;

}

unsigned char hex2u8(char*par)

{

    return(hex2byte(par[0])*16+hex2byte(par[1]));

}

unsigned int par2u32(char*par)

{

    unsigned int i,ret=0 ;

    if(par==NULL)return ;

    if((0==strncmp(par,"0x",2))||(0==strncmp(par,"0X",2)))

    for(i=2;;++i)

    {

        if(par[i]=='\0')return ret ;if(par[i]==' ')return ret ;

        ret=ret*16+hex2byte(par[i]);

    }

    else

    for(i=0;;++i)

    {

        if(par[i]=='\0')return ret ;if(par[i]==' ')return ret ;

        ret=ret*10+hex2byte(par[i]);

    }

    return 0 ;

}

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

HANDLE hCom ;

void OpenCom(unsigned int baudrate,char*comno)

{

    DCB dcb ;

    COMMTIMEOUTS ct ;

    hCom=CreateFile(comno,GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);

    if(hCom==INVALID_HANDLE_VALUE)exit(1);

    if(!SetupComm(hCom,4096,4096))exit(1);

    if(!GetCommState(hCom,&dcb))exit(1);

    dcb.BaudRate=baudrate ;

    //modified by `Liwei 2007-9-4

    ((DWORD*)(&dcb))[2]=0x1001 ;

    /*  set port properties for TXDI + no flow-control */

    dcb.ByteSize=8 ;

    dcb.Parity=NOPARITY ;

    dcb.StopBits=2 ;

    if(!SetCommState(hCom,&dcb))exit(1);

    /*  set the timeouts to 0 */

    ct.ReadIntervalTimeout=MAXDWORD ;

    ct.ReadTotalTimeoutMultiplier=0 ;

    ct.ReadTotalTimeoutConstant=0 ;

    ct.WriteTotalTimeoutMultiplier=0 ;

    ct.WriteTotalTimeoutConstant=0 ;

    if(!SetCommTimeouts(hCom,&ct))exit(1);

}

void CloseCom()

{

    CloseHandle(hCom);

}

DWORD WriteCom(char*buf,int len)

{

    DWORD nSend ;

    if(!WriteFile(hCom,buf,len,&nSend,NULL))exit(1);

    return nSend ;

}

void WriteComChar(char b)

{

    WriteCom(&b,1);

}

int ReadCom(char*buf,int len)

{

    DWORD nRec ;

    if(!ReadFile(hCom,buf,len,&nRec,NULL))exit(1);

    return(int)nRec ;

}

char ReadComChar()

{

    DWORD nRec ;

    char c ;

    if(!ReadFile(hCom,&c,1,&nRec,NULL))exit(1);

    return nRec?c:0 ;

}

//ser_dld 19200 COM1 N

void main(int argc,char*argv[])

{

    char c,s[11];

    int i,baud_rate ;

    FILE*ff=fopen("code.txt","r");

    baud_rate=(NULL!=argv[1])?par2u32(argv[1]):DEFAULT_BAUD_RATE ;

    //baud_rate=DEFAULT_BAUD_RATE;

    OpenCom(baud_rate,argv[2]);

    WriteComChar('?');

    Sleep(1);

    i=100 ;

    while(i--);

    c=ReadComChar();

    WriteComChar('!');

    Sleep(10);

    c=ReadComChar();

    if((argv[3]!=NULL)&&(argv[3][0]=='N'))

    {

    }

    else

    {

        if(c!='O')

        {

            //printf("%c",c);

            printf("1,Powerup you board.\n2,Chech cable.\nany key to exit...\n");

            getchar();

            return ;

        }

        else

        {

            printf("Downloading,wait...\n");

        }

    }

    rewind(ff);

    while(fgets(s,10,ff))

    {

        WriteComChar(hex2u8((char*)(s+0)));

        printf("%2.2x  ",hex2u8((char*)(s+0)));

        Sleep(1);

        WriteComChar(hex2u8((char*)(s+2)));

        printf("%2.2x  ",hex2u8((char*)(s+2)));

        Sleep(1);

        WriteComChar(hex2u8((char*)(s+4)));

        printf("%2.2x  ",hex2u8((char*)(s+4)));

        Sleep(1);

        WriteComChar(hex2u8((char*)(s+6)));

        printf("%2.2x  \n",hex2u8((char*)(s+6)));

        Sleep(1);

    }

    Sleep(1);

    printf("Download to MIPS789 OK!\nPress RESET botton to RUN the MIPS789 program...");

    WriteComChar(0x88);

    getch();

    CloseCom();

}