湖北文理学院理工学院 附录1：程序
CE = 1; //发送地址
for ( i=8; i>0; i-- ) //循环8次移位 {
SCLK = 0; temp = addr;
DIO = (bit)(temp&0x01); //每次传输低字节 addr >>= 1; //右移一位 SCLK = 1; }
//读取数据
for ( i=8; i>0; i-- ) {
ACC_7=DIO; SCLK = 1; ACC>>=1; SCLK = 0; } CE=0; dat1=ACC;
dat2=dat1/16; //数据进制转换 //十六进制转十进制 dat1=dat1; dat1=dat1+dat2*10; return (dat1); }
//初始化 DS1302
void Initial(void) //初始化1302 2010年09月30日23点58分56秒 星期一
{
湖北文理学院理工学院 附录1：程序
write_1302 (0x8e,0x00); //允许写保护 write_1302 (0x80,0x56);
//秒位初始化
write_1302 (0x82,0x58); //分钟初始化 write_1302 (0x84,0x23); //小时初始化 write_1302 (0x86,0x30); //日初始化
write_1302 (0x88,0x09); //月初始化 write_1302 (0x8c,0x10); //年初始化 write_1302 (0x8a,0x01); //日期始化 write_1302 (0x8e,0x80); //禁止写保护
}
void di()//蜂鸣器响函数 {
beep=0; delay(100); beep=1; }
void write_sfm(uchar add,uchar date) {
uchar shi,ge; shi=date/10; ge=date;
write_com(0x80+0x40+add); write_data(0x30+shi); write_data(0x30+ge); }
void write_nyrz(uchar add,uchar date)//显示年，月，日，周{
uchar shi,ge; shi=date/10; ge=date;
湖北文理学院理工学院 附录1：程序
write_com(0x80+add); write_data(0x30+shi); write_data(0x30+ge); }
void display_week(uchar we) {
write_com(0x80+12); switch(we) {
case 1: write_data('M');delay(5);
write_data('O');delay(5); write_data('N'); break;
case 2: write_data('T');delay(5);
write_data('U');delay(5); write_data('E'); break;
case 3: write_data('W');delay(5);
write_data('E');delay(5); write_data('D'); break;
case 4: write_data('T');delay(5);
write_data('H');delay(5); write_data('U'); break;
case 5: write_data('F');delay(5);
write_data('R');delay(5); write_data('T'); break;
case 6: write_data('S');delay(5);
湖北文理学院理工学院 附录1：程序
write_data('A');delay(5); write_data('T'); break;
case 7: write_data('S');delay(5);
write_data('U');delay(5); write_data('N'); break;
} }
void keyscan()//按键设置 {
if(key3==0)//功能键按下 {
flag=0; delay(5); if(key3==0) {
s1num++; while(!key3); di();
switch(s1num)//光标闪烁定位 {
case 1:write_com(0x80+0x40+7);//定位到秒的位置
write_com(0x0f); tempchange();
for(i=10;i>0;i--) { } break;
dis_temp(get_temp());