How to use the bit domain function in the C51 single-chip microcomputer

Define such a structure: Typedef struct { Uchar dc0_ala: 1; // Power 0 alarm Uchar DC1_Ala: 1; // Power 1 Alarm Uchar ac_ala: 1; // power outage UCHAR UN_H_Ala: 1; // Frequency Channel Lost Lock Uchar un_l_ala: 1; // Expired channel machine lost lock Uchar far_ala: 1; // Remote communication fault alarm Uchar Open_ala: 1; // Door alarm Uchar x: 1; } Alarm; // system alarm structure definition Define variables and initialize: IDATA ALARM OLD_Alarm = {0, 0, 0, 0, 0, 0, 0, 0}; In the main () function, apply the bit field: IF (old_alarm.dc0_ala! = tdz_get.alarm.dc0_ala || Old_alarm.dc1_ala! = TDZ_GET.Alarm.dc1_ala || OLD_Alarm.Alarm! = TDZ_GET.Alarm.ac_ala | = TDZ_GET.Arm.un_a_ala || Old_alarm.un_l_ala! = tdz_get.alam.un_l_ala || = tdz_get.Alarm.far_ala || Old_Alarm.Open_ala! = TDZ_GET.Alarm.Open_Ala) { Old_alarm.dc0_ala = tdz_get.alam.dc0_ala; Old_Alarmm.dc1_ala = tdz_get.alarm.dc1_ala; Old_Alarm.ac_ala = tdz_get.alarm.ac_ala; Old_alarm.un_h_ala = tdz_get.alarm.un_h_ala; Old_Alarm.un_l_ala = tdz_get.alarm.un_l_ala; Old_Alarm.far_ala = tdz_get.alarm.far_ala; Old_alarm.open_ala = tdz_get.alarm.open_ala; ALA = 0; // Determine the alarm condition }, Read the full text

Our other product:

Professional lightning protection system for Tower	Professional FM Radio Station Equipment Package	FMUSER FU-1000C 1000W FM Transmitter With USB Audio Input Interface
FMUSER 200W FM Radio Broadcasting Package	Hotel IPTV Solution	FMUSER FSN-1000T V5.0 1KW FM Radio Broadcast Transmitter