[讨论] 请帮我详细解释下下面这段代码吧？非常感谢

memset((char*)&Setting, 0, 128);
RunMode = ~P2;
if (RunMode & 0x01)
{
  Setting.Station = 0x32;
  Setting.Protocol = Protocol_Answer;
  Setting.AddressBit = 10;
  Setting.Uart0_rate = 4;   //115200
  WriteFlash((char*)&Setting);
}