444光立方电路图及程序Word格式文档下载.docx
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444光立方电路图及程序Word格式文档下载.docx
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因此时钟频率直接影响单片机的速度,时钟电路的质量也直接影响单片机系统的可靠性和稳定性。
常用的时钟电路设计为内部时钟方式,单片机内部有一个由反向放大器构成的震荡电路,芯片上的XTAL1和XTAL2分别为震荡电路的输入和输出端。
只要在这两个引脚上接一个石英晶体振荡器和两个微调电容就构成内部方式的振荡器电路,有振荡器产生自激振荡,便构成一个完整的震荡信号发生器。
一般选用石英晶体振荡器。
此电路在加电大约延迟10ms后振荡器起振,在XTAL2引脚产生幅度为3V左右的正弦波时钟信号,其振荡频率主要由石英晶振的频率确定。
电路中两个电容C1、C2的作用有两个:
一是帮助振荡器起振;
二是对振荡器的频率进行微调。
本系统的C1、C2的值为33pf。
单片机在工作时,有内部振荡器产生或由外直接输入的送至内部控制逻辑单元的时钟信号的周期称为时钟周期。
其大小是时钟信号频率的倒数,f表示。
图2中的时钟频率为12MHz,即f=12MHz,则时钟周期为1/12us。
附注:
三极管可以不接,只是会影响光源亮度。
3.4系统的工作原理图
光立方一、二层:
光立方三、四层:
单片机口点连接:
三极管放大电路:
总原理图:
3.5焊接实物图
元器件清单:
名称
数量
大LED灯
70个
AT89S52
1片
按键
1
9013
16个
102排阻
2个
1K电阻
20pF瓷片电容
12MHz晶振
1个
10uF电容
330电阻
1个
4.7K电阻
3.3C语言程序
#include<
reg51.h>
#defineucharunsignedchar
voiddelay100ms(uchardata1ms)
{uchari,j,m;
for(i=0;
i<
data1ms;
i++)
for(j=0;
j<
110;
j++)
for(m=0;
m<
100;
m++)
;
}
voiddisp(ucharceng,ucharlie1,ucharlie2)
{
delay100ms(7);
P1=ceng;
P2=lie1;
P0=lie2;
voidmain(void)
{unsignedcharhang,shu1;
unsignedcharcodeC1[][16]={
{0x07,0x0B,0x0D,0x0E,0x0E,0x0C,0x08,0x00,0x00,0x08,0x0C,0x0E,0x0C,0x08,0x00,0x00},
{0x08,0x0C,0x0E,0x0C,0x08,0x00,0x00,0x08,0x0C,0x0E,0x0C,0x08,0x00,0x00,0x08,0x0C},
{0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E},
{0x0C,0x08,0x00,0x00,0x08,0x0C,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x0C,0x0E,0x0F,0x0E,0x0C,0x08,0x00},
{0x00,0x00,0x00,0x00,0x00,0x0D,0x0D,0x0D,0x05,0x09,0x09,0x09,0x0D,0x0D,0x0D,0x05},
{0x09,0x09,0x09,0x00,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09},
{0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09}
};
unsignedcharcodeL1[][16]={
{0xFF,0xFF,0xFF,0xFF,0x60,0x60,0x60,0x60,0x60,0x60,0x60,0x96,0x96,0x96,0x96,0x96},
{0x96,0x96,0x33,0x33,0x33,0x33,0x33,0x33,0x33,0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,0xCC},
{0x01,0x03,0x07,0x0F,0x8E,0x8C,0x88,0x80,0x00,0x00,0x00,0x10,0x30,0x70,0x70,0x60},
{0x60,0x60,0x60,0x60,0x60,0x60,0x60,0xCC,0x0F,0x33,0x66,0xCC,0xF0,0x33,0x66,0xCC},
{0x66,0x33,0xF0,0xCC,0x66,0x33,0xF0,0xCC,0xCC,0xCC,0xCC,0xCC,0x60,0x60,0x60,0x60},
{0xE8,0x74,0x32,0x11,0x00,0x06,0x66,0x60,0x60,0x60,0x00,0x00,0x06,0x66,0x60,0x60},
{0x60,0x00,0x00,0x00,0x80,0x40,0x20,0x20,0x20,0x60,0x62,0x60,0x30,0x10,0x80,0xC0},
{0x60,0x60,0x60,0x60,0x64,0x60,0x30,0x10}
//{0x01,0x02,0x04,0x08,0x80,0x40,0x20,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},//列扫描
unsignedcharcodeL2[][16]={
{0xFF,0xFF,0xFF,0xFF,0x06,0x06,0x06,0x06,0x06,0x06,0x06,0x69,0x69,0x69,0x69,0x69},
{0x69,0x69,0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,0x33,0x33,0x33,0x33,0x33,0x33,0x33},
{0x00,0x00,0x00,0x00,0x00,0x08,0x88,0xC8,0xE8,0xF0,0x71,0x31,0x11,0x10,0x04,0x06},
{0x06,0x06,0x06,0x06,0x06,0x06,0x06,0x33,0xF0,0xCC,0x66,0x33,0x0F,0xCC,0x66,0x33},
{0x66,0xCC,0x0F,0x33,0x66,0xCC,0x0F,0x33,0x33,0x33,0x33,0x33,0x06,0x06,0x06,0x06},
{0x8E,0x47,0x23,0x11,0x00,0x00,0x00,0x06,0x06,0x06,0x66,0x60,0x00,0x00,0x06,0x06},
{0x06,0x66,0x60,0x00,0x08,0x0C,0x06,0x66,0x06,0x06,0x06,0x06,0x03,0x01,0x00,0x08},
{0x04,0x64,0x06,0x06,0x06,0x06,0x03,0x01}
//{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02,0x04,0x08,0x80,0x40,0x20,0x10}
while
(1)
{
for(hang=0;
hang<
8;
hang++)
{for(shu1=0;
shu1<
16;
shu1++)
disp(C1[hang][shu1],L1[hang][shu1],L2[hang][shu1]);
//for(hang=0;
1;
//{
//for(shu1=0;
shu1++)
//{shu2=0;
//disp(C1[shu2][shu2],L1[hang][shu1],L2[hang][shu1]);
//}
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