HT1380实时时钟驱动轨范_clock_clk_sbit

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;

}