MSP430F2274: STRCAT garbage

Hi!

I already read some other posts about strcat and strcpy but I can't figure out why my string sent like this. The output should be:

"rpm:1234 mA:0213" but instead I got "rpm:1234 {4 bytes of LF or garbage} mA:0213"

Here is the code snippet:

void SendData()
{    
    volatile unsigned int TempDataInt = 0;



    strcpy(&StrBuf[0], "               ");
    strcpy(&StrBuf[0], "rpm:");

    TempDataInt = binToBCD((long unsigned int)Rpm);

    DataBuf[3] = (TempDataInt & 0x000F) | 0x30; // u
    TempDataInt >>= 4;
    DataBuf[2] = (TempDataInt & 0x000F) | 0x30; // d
    TempDataInt >>= 4;
    DataBuf[1] = (TempDataInt & 0x000F) | 0x30; // c
    TempDataInt >>= 4;
    DataBuf[0] = (TempDataInt & 0x000F) | 0x30; // m
    TempDataInt >>= 4;

    strcat(&StrBuf[0], &DataBuf[0]);
    strcat(&StrBuf[0], "mA:");

    TempDataInt = binToBCD((long unsigned int)(Current*1000));

    DataBuf[3] = (TempDataInt & 0x000F) | 0x30;
    TempDataInt >>= 4;
    DataBuf[2] = (TempDataInt & 0x000F) | 0x30;
    TempDataInt >>= 4;
    DataBuf[1] = (TempDataInt & 0x000F) | 0x30;
    TempDataInt >>= 4;
    DataBuf[0] = (TempDataInt & 0x000F) | 0x30;
    TempDataInt >>= 4;


    strcat(&StrBuf[0], &DataBuf[0]);


    __no_operation();

    for(r=0;r<strlen(&StrBuf[0]);r++)
    {
        UCA0TXBUF = StrBuf[r];
        while(UCA0STAT & UCBUSY);
    }
}