#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
#define CH452_SYSON1 0x0401
//#define CH452_SYSON1 0x0409
#define CH452_BCD 0x0580
//#define CH452_BCD 0x0500
#define CH452_RESET 0x0201
#define CH452_DIG0 0x0800
#define CH452_DIG1 0x0900
#define CH452_DIG2 0x0a00
#define CH452_DIG3 0x0b00
#define CH452_DIG4 0x0c00
#define CH452_DIG5 0x0d00
#define CH452_DIG6 0x0e00
#define CH452_DIG7 0x0f00
sbit CH452_DCLK = P1^2;
sbit CH452_DIN = P1^3;
sbit CH452_LOAD = P1^5;
#define CH452_DCLK_SET {CH452_DCLK=1;}
#define CH452_DCLK_CLR {CH452_DCLK=0;}
#define CH452_DIN_SET {CH452_DIN=1;}
#define CH452_DIN_CLR {CH452_DIN=0;}
#define CH452_LOAD_SET {CH452_LOAD=1;}
#define CH452_LOAD_CLR {CH452_LOAD=0;}
void delay_2us(uchar con)
{
for(;con!=0;con--);
}
void delay_30ms(void)
{
uchar dms1;
uchar dms2;
for(dms1=119;dms1!=0;dms1--)
{
for(dms2=15;dms2!=0;dms2--)
delay_2us(1);
}
}
void CH452_Write(uint cmd)
{
uchar i;
CH452_LOAD_CLR;
CH452_DCLK_CLR;
for(i=12;i!=0;i--)
{
CH452_DIN=cmd&1;
CH452_DCLK_SET;
cmd=cmd>>1;
CH452_DCLK_CLR;
}
CH452_LOAD_SET;
delay_2us(3);
}
void main()
{
//初始化
CH452_Write(CH452_RESET);
delay_30ms(); //延迟30ms
CH452_Write(CH452_SYSON1); //开启显示
while (1)
{
//"|"后面为显示内容,具体参考DATASHEET
CH452_Write(CH452_DIG7 | 0x01);
CH452_Write(CH452_DIG6 | 0x02);
CH452_Write(CH452_DIG5 | 0x03);
CH452_Write(CH452_DIG4 | 0x04);
CH452_Write(CH452_DIG3 | 0x01);
CH452_Write(CH452_DIG2 | 0x02);
CH452_Write(CH452_DIG1 | 0x03);
CH452_Write(CH452_DIG0 | 0x04);
}
}
//去官网下了个驱动,感觉太多了,自己搞了个比较少的,写得不是很好!
//不过还好用哈!
//唯一的问题是,空白处有淡淡的重影,有谁知道怎么回事呀,难道是片子的病.
相关链接:https://bbs.21ic.com/upfiles/img/200710/2007107155839645.pdf |
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