以下程序是一款名0693的一塊VFD顯示屏的時鐘顯示驅(qū)動程序，該顯示屏用于硬盤錄像機，現(xiàn)已出口歐洲。 ＃i nclude "reg51.h"
＃i nclude "stdio.h"sbit STB = P1^2;
sbit CLK = P1^0;
sbit DIN = P1^1;
void vfd_cmd (unsigned char vfd_cmd0); /* 寫命令*/
void vfd_wrdata (unsigned char vfd_wrdata0); /* 寫數(shù)據(jù) */
void vfd_init (void); /* PT6311初始化 */unsigned char vfdbuf[]={0,0,0,0,21,8};
code unsigned char vfdmap[]={0xf7, 0xa4, 0xeb, 0xed, 0xbc, 0xdd, 0xdf, 0xe4, 0xff, 0xfd};
unsigned char g11[]={0x64,0x89,0x32,0x64,0xa9,0x32,0x64,0xa9,0x32};
unsigned char g12[]={0x26,0x48,0x91,0x26,0x48,0x01,0x02,0x00,0x91};
//unsigned char g21[]={0xff,0x13,0x13,0x13,0x13,0x13,0x13,0x13,0x00};
//unsigned char g22[]={0xff,0x40,0x00,0x00,0x80,0x00,0x00,0x00,0x00};
//unsigned char g31[]={0xff,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x00};
//unsigned char g32[]={0xff,0x10,0x00,0x10,0x00,0x10,0x00,0x10,0x10};
//unsigned char g41[]={0xff,0x7e,0x7e,0x7e,0x7e,0x7e,0x7e,0x7e,0x00};
//unsigned char g42[]={0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
//unsigned char g51[]={0xff,0x2f,0x2f,0x2f,0x2f,0x2f,0x2f,0x2f,0x00};
//unsigned char g52[]={0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
unsigned char g61[]={0xff,0x02,0x04,0x08,0x10,0x00,0x00,0x00,0x00};
unsigned char g62[]={0xff,0x00,0x00,0x00,0x00,0x10,0x20,0x40,0x80};
void delay(unsigned char cnt)
{
unsigned char i;
while(cnt--!=0)
for(i=100;i!=0;i--);
}
#define tick 7554
#define T100us (256-134)
unsigned char hour, minute, second;
unsigned int c100us; void vfd_cmd ( unsigned char vfd_cmd0 ) /* 寫控制命令子程序 */
{
unsigned char i;
STB=1;
CLK=1;
for ( i=0;i<8;i++ )
{
STB=0;
CLK=0;
DIN = vfd_cmd0&0x01;
CLK=1;
vfd_cmd0>>=1;
}
STB=1;
CLK=1;
}
void vfd_wrdata ( unsigned char vfd_wrdata0 ) /* 寫數(shù)據(jù)子程序 */
{
unsigned char i; for(i=0;i<8;i++)
{
CLK=1;
STB=0;
CLK=0;
DIN=vfd_wrdata0&0x01;
CLK=1;
vfd_wrdata0>>=1;
}
STB=0;
CLK=1;
}void vfd_init(void)
{
vfd_cmd ( 0x3a ); /* 6digits，16segments顯示模式 */ vfd_cmd ( 0x70 ); /* 顯示正常模式，數(shù)據(jù)地址遞增 */
vfd_wrdata ( 0xc0 ); /* 設(shè)置地址從00H開始 */ }
void timer0() interrupt 1
{
c100us--;
if(c100us==0)
{
c100us=tick;
second++; if(second==60)
{
second=0;
minute++;
if(minute==60);
{
minute=0;
hour++;
if(hour==24)
{hour=0;}
}
}
}
}void vfd_wrtime ()
{unsigned int i;
vfdbuf[0]=vfdmap[hour/10];
vfdbuf[1]=vfdmap[hour%10]; vfdbuf[2]=vfdmap[minute/10];
vfdbuf[3]=vfdmap[minute%10]; vfdbuf[4]=vfdmap[second/10];
vfdbuf[5]=vfdmap[second%10]; vfd_init( );
i=0;
vfd_wrdata ( g11[i] );
vfd_wrdata ( g12[i] );
vfd_wrdata ( vfdbuf[0] ); //2G 分的十位
vfd_wrdata ( 0x00 );
vfd_wrdata ( vfdbuf[1] ); //3G 分的個位
vfd_wrdata ( 0x00 );
vfd_wrdata ( vfdbuf[4] ); //4G 秒的十位
vfd_wrdata ( 0x00 );
vfd_wrdata ( vfdbuf[5] ); //5G 秒的個位
vfd_wrdata ( 0x00 );
vfd_wrdata ( g61[i] ); //6G
vfd_wrdata ( g62[i] );
i++;
STB=1;
delay(1000);
vfd_cmd ( 0x8f ); /* 顯示開,14/16脈寬 */} void main()
{ EA=1;ET0=1;
TMOD=0x02;
TH0=T100us;
TL0=T100us;
hour=0;
second=0;
c100us=tick;
TR0=1;
while(1)
{vfd_wrtime();
delay(1);
}
} |
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66821730(技術(shù)支持)
