教你做用热转印法做PCB板以51单片机和时钟芯片DS12C887做的时钟为例附代码.docx
《教你做用热转印法做PCB板以51单片机和时钟芯片DS12C887做的时钟为例附代码.docx》由会员分享,可在线阅读,更多相关《教你做用热转印法做PCB板以51单片机和时钟芯片DS12C887做的时钟为例附代码.docx(24页珍藏版)》请在冰点文库上搜索。
教你做用热转印法做PCB板以51单片机和时钟芯片DS12C887做的时钟为例附代码
教你做用热转印法做PCB板(以51单片机和时钟芯片DS12C887做的时钟为例,附代码)
一、用电脑设计出原理图
二、画好PCB
三、将画好的PCB图打印到热转印纸上
四、将热转印纸上的墨转印到覆铜板上(可用热转印机或熨斗)
来张细节图
注:
对应一些打印缺点墨的,要用记号笔(油性笔)修补,不可用签字笔或钢笔,
五、准备腐蚀了
六、整个腐蚀过程非常清晰
腐蚀完效果非常好
七、用清水洗净
八、来一张效果图
九、用细砂纸打磨掉板上的墨迹(或用天拿水擦拭)
十、钻孔
十一、焊上元件
十二、焊好后的样子
十二、加电试运行,非常成功
附代码(原理图上设计有闹钟蜂鸣器等,但程序中无涉及,可自行增添相关程序)
#include
#defineucharunsignedchar
#defineuintunsignedint
sbitlcden=P1^2;//1602液晶的使能信号引脚
sbitlcdrs=P1^0;//1602液晶的数据/命令选择引脚
sbitlcdrw=P1^1;//1602液晶的读写选择引脚
sbitdsds=P2^3;//DS12C887的DS引脚
sbitdsrw=P2^2;//DS12C887的R/W引脚
sbitdsas=P2^1;//DS12C887的AS引脚
sbitdscs=P2^0;//DS12C887的CS引脚
sbits1=P1^4;//第一个按键
sbits2=P1^5;//第二个按键
sbits3=P1^6;//第三个按键
ucharstr_time[]="00:
00:
00";
ucharstr_date[]="2000-00-00";
charshi,fen,miao,nian,yue,ri,week,flag=0,num=0;//时、分、秒、年、月、日、星期、(后两个用于按键的)
voiddelay(uintz)//延时函数
{
uintx,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
voidwrite_com(uintcom)//往1602液晶中写一个指令
{
lcdrs=0;
lcden=0;
P0=com;
delay
(1);
lcden=1;
delay
(1);
lcden=0;
}
voidwrite_dat(uintdat)//往1602液晶中写一个数据
{
lcdrs=1;
lcden=0;
P0=dat;
delay
(1);
lcden=1;
delay
(1);
lcden=0;
}
voidwrite_sfm(ucharadd,uchardate)//将时、分、秒写到1602液晶对应的位置
{
ucharge,shi;
ge=date%10;
shi=date/10;
write_com(0x80+0x40+add);
write_dat(0x30+shi);
write_dat(0x30+ge);
}
voidwrite_nyr(ucharadd,uchardate)//将年、月、日写到1602液晶对应的位置
{
ucharge,shi;
ge=date%10;
shi=date/10;
write_com(0x80+add);
write_dat(0x30+shi);
write_dat(0x30+ge);
}
ucharread_ds(ucharadd)//从DS12C887中读一个数据
{
uchards_dat;
dscs=0;
dsds=1;
dsrw=1;
dsas=1;
P3=add;
dsas=0;
P3=0xff;
dsds=0;
ds_dat=P3;
dsds=1;
dsas=1;
dscs=1;
returnds_dat;
}
voidwrite_ds(ucharadd,uchardate)//往DS12C887中写一个数据
{
dscs=0;
dsrw=1;
dsds=1;
dsas=1;
P3=add;
dsas=0;
P3=date;
dsrw=0;
delay
(1);
dsrw=1;
dsas=1;
dscs=1;
}
voidinit()//初始化函数
{
uchartemp;
lcdrw=0;
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
write_com(0x80);
write_com(0x01);
for(temp=0;temp<10;temp++)
{
write_dat(str_date[temp]);
}
write_com(0x80+0x40+4);
for(temp=0;temp<8;temp++)
{
write_dat(str_time[temp]);
}
write_ds(0x0a,0x20);
write_ds(0x0b,0x26);
}
voiddisplay()//显示函数
{//从DS12C887中读出秒
miao=read_ds(0);//将秒的数据送到1602液晶显示(下面几个同理)
write_sfm(10,miao);
fen=read_ds
(2);
write_sfm(7,fen);
shi=read_ds(4);
write_sfm(4,shi);
nian=read_ds(9);
write_nyr(2,nian);
yue=read_ds(8);
write_nyr(5,yue);
ri=read_ds(7);
write_nyr(8,ri);
week=read_ds(6);
write_com(0x80+12);
switch(week)
{
case1:
write_dat('M');
write_dat('o');
write_dat('n');
write_dat('');
case2:
write_dat('T');
write_dat('u');
write_dat('e');
write_dat('s');
case3:
write_dat('W');
write_dat('e');
write_dat('d');
write_dat('');
case4:
write_dat('T');
write_dat('h');
write_dat('u');
write_dat('r');
case5:
write_dat('F');
write_dat('r');
write_dat('I');
write_dat('');
case6:
write_dat('s');
write_dat('a');
write_dat('t');
write_dat('');
case7:
write_dat('S');
write_dat('u');
write_dat('n');
write_dat('');
}
}
voidkeyscanf()//键盘扫描函数
{
if(s1==0)
{
delay(3);
if(s1==0)
{
while(!
s1);
delay(5);
while(!
s1);
flag=1;
num++;
if(num==1)
{
write_com(0x0f);
write_com(0x80+0x40+11);
}
if(num==2)
{
write_com(0x80+0x40+8);
}
if(num==3)
{
write_com(0x80+0x40+5);
}
if(num==4)
{
write_com(0x80+9);
}
if(num==5)
{
write_com(0x80+6);
}
if(num==6)
{
write_com(0x80+3);
}
if(num==7)
{
write_com(0x0c);
write_ds(0,miao);
write_ds(2,fen);
write_ds(4,shi);
write_ds(7,ri);
write_ds(8,yue);
write_ds(9,nian);
num=0;
flag=0;
}
}
}
if(num!
=0)
{
if(s2==0)
{
delay(3);
if(s2==0)
{
while(!
s2);
delay(3);
while(!
s2);
switch(num)
{
case1:
miao++;
if(miao==60)miao=0;
write_sfm(10,miao);
write_com(0x80+0x40+11);
break;
case2:
fen++;
if(fen==60)fen=0;
write_sfm(7,fen);
write_com(0x80+0x40+8);
break;
case3:
shi++;
if(shi==24)shi=0;
write_sfm(4,shi);
write_com(0x80+0x40+5);
break;
case4:
ri++;
if(ri==32)ri=0;
write_nyr(8,ri);
write_com(0x80+9);
break;
case5:
yue++;
if(yue==13)yue=0;
write_nyr(5,yue);
write_com(0x80+6);
break;
case6:
nian++;
if(nian==100)nian=0;
write_nyr(2,nian);
write_com(0x80+3);
break;
}
}
}
if(s3==0)
{
delay(3);
if(s3==0)
{
while(!
s3);
delay(3);
while(!
s3);
switch(num)
{
case1:
miao--;
if(miao<0)miao=59;
write_sfm(10,miao);
write_com(0x80+0x40+11);
break;
case2:
fen--;
if(fen<0)fen=59;
write_sfm(7,fen);
write_com(0x80+0x40+8);
break;
case3:
shi--;
if(shi<0)shi=23;
write_sfm(4,shi);
write_com(0x80+0x40+5);
break;
case4:
ri--;
if(ri<1)ri=31;
write_nyr(8,ri);
write_com(0x80+9);
break;
case5:
yue--;
if(yue<1)yue=12;
write_nyr(5,yue);
write_com(0x80+6);
break;
case6:
nian--;
if(nian<0)nian=99;
write_nyr(2,nian);
write_com(0x80+3);
break;
}
}
}
}
}
voidmain()
{
init();
while
(1)
{
display();
keyscanf();
}
}