HT1380实时时钟驱动程序(C语言)

  //HT1380实时时钟驱动程序            sbit clock_dat=P0^1;            sbit clock_clk=P0^2;            sbit clock_rst=P0^3;            sbit a0=ACC^0;            sbit a1=ACC^1;            sbit a2=ACC^2;            sbit a3=ACC^3;            sbit a4=ACC^4;            sbit a5=ACC^5;            sbit a6=ACC^6;            sbit a7=ACC^7;            void clock_out(unsigned char dd) {            ACC=dd;            clock_dat=a0;clock_clk=1;clock_clk=0;            clock_dat=a1;clock_clk=1;clock_clk=0;            clock_dat=a2;clock_clk=1;clock_clk=0;            clock_dat=a3;clock_clk=1;clock_clk=0;            clock_dat=a4;clock_clk=1;clock_clk=0;            clock_dat=a5;clock_clk=1;clock_clk=0;            clock_dat=a6;clock_clk=1;clock_clk=0;            clock_dat=a7;clock_clk=1;clock_clk=0;            }            unsigned char clock_in(void) {            clock_dat=1;            a0=clock_dat;            clock_clk=1;clock_clk=0;a1=clock_dat;            clock_clk=1;clock_clk=0;a2=clock_dat;            clock_clk=1;clock_clk=0;a3=clock_dat;            clock_clk=1;clock_clk=0;a4=clock_dat;            clock_clk=1;clock_clk=0;a5=clock_dat;            clock_clk=1;clock_clk=0;a6=clock_dat;            clock_clk=1;clock_clk=0;a7=clock_dat;            return(ACC);            }            unsigned char read_clock(unsigned char ord) {            unsigned char dd=0;            clock_clk=0;            clock_rst=0;            clock_rst=1;            clock_out(ord);            dd=clock_in();            clock_rst=0;            clock_clk=1;            return(dd);            }            void write_clock(unsigned char ord,unsigned char dd) {            clock_clk=0;            clock_rst=0;            clock_rst=1;            clock_out(ord);            clock_out(dd);            clock_rst=0;            clock_clk=1;            }