private int WritePage(int pageNum)
{
byte[] cmd = new byte[8];
cmd[0] = 0XAA;
cmd[0] = 0X07;
cmd[0] = 0X01;
cmd[0] = 0XD2;
cmd[0] = 0X00;
cmd[0] = 0X00;
cmd[0] = 0X00;
cmd[0] = 0XD4;
return(m_SerialCom.SendFile(cmd));
}