点阵LED例子.rar

#include <atmel\regx52.h> #define int8 unsigned char #define int16 unsigned int #define int32 unsigned long int8 code num_tab[][8]={ /*--8*8--阴码--逐行扫描--逆向（低位在前）--*/ {0x00,0x00,0x00,0x38,0x44,0x38,0x00,0x00},/*"0",0*/ {0x00,0x00,0x40,0x78,0x48,0x00,0x00,0x00},/*"1",1*/ {0x00,0x00,0x00,0x4C,0x54,0x6C,0x00,0x00},/*"2",2*/ {0x00,0x00,0x00,0x74,0x4C,0x6C,0x00,0x00},/*"3",3*/ {0x00,0x00,0x00,0x7C,0x28,0x10,0x00,0x00},/*"4",4*/ {0x00,0x00,0x00,0x74,0x54,0x7C,0x00,0x00},/*"5",5*/ {0x00,0x00,0x70,0x54,0x54,0x38,0x00,0x00},/*"6",6*/ {0x00,0x00,0x04,0x7C,0x04,0x00,0x00,0x00},/*"7",7*/ {0x00,0x00,0x00,0x6C,0x54,0x6C,0x00,0x00},/*"8",8*/ {0x00,0x00,0x00,0x3C,0x54,0x1C,0x00,0x00},/*"9",9*/ {0x00,0x00,0x00,0x38,0x44,0x38,0x00,0x00},/*"0",10*/ {0x00,0x00,0x40,0x78,0x58,0x68,0x00,0x00},/*"a",11*/ {0x00,0x00,0x78,0x48,0x7C,0x00,0x00,0x00},/*"b",12*/ {0x00,0x00,0x00,0x48,0x48,0x70,0x00,0x00},/*"c",13*/ {0x00,0x00,0x00,0x7C,0x48,0x78,0x00,0x00},/*"d",14*/ {0x00,0x00,0x58,0x58,0x70,0x00,0x00,0x00},/*"e",15*/ {0x00,0x00,0x00,0x4C,0x7C,0x48,0x00,0x00},/*"f",16*/ {0x00,0x08,0xD8,0xD8,0xF8,0x00,0x00,0x00},/*"g",17*/ {0x00,0x00,0x78,0x08,0x7C,0x00,0x00,0x00},/*"h",18*/ {0x00,0x00,0x40,0x7C,0x48,0x00,0x00,0x00},/*"i",19*/ {0x00,0x00,0x00,0xFC,0x88,0x00,0x00,0x00},/*"j",20*/ {0x00,0x00,0x48,0x78,0x7C,0x00,0x00,0x00},/*"k",21*/ {0x00,0x00,0x40,0x7C,0x44,0x00,0x00,0x00},/*"l",22*/ {0x00,0x00,0x00,0x78,0x78,0x78,0x00,0x00},/*"m",23*/ {0x00,0x00,0x78,0x08,0x78,0x00,0x00,0x00},/*"n",24*/ {0x00,0x00,0x30,0x48,0x48,0x30,0x00,0x00},/*"o",25*/ {0x00,0x00,0x78,0xC8,0xF8,0x00,0x00,0x00},/*"p",26*/ {0x00,0x00,0x00,0xF8,0xC8,0x78,0x00,0x00},/*"q",27*/ {0x00,0x00,0x08,0x48,0x78,0x48,0x00,0x00},/*"r",28*/ {0x00,0x00,0x68,0x68,0x58,0x00,0x00,0x00},/*"s",29*/ {0x00,0x00,0x00,0x40,0x7C,0x08,0x00,0x00},/*"t",30*/ {0x00,0x00,0x78,0x40,0x78,0x00,0x00,0x00},/*"u",31*/ {0x00,0x08,0x38,0x40,0x38,0x08,0x00,0x00},/*"v",32*/ {0x00,0x08,0x78,0x18,0x68,0x18,0x00,0x00},/*"w",33*/ {0x00,0x00,0x48,0x78,0x78,0x48,0x00,0x00},/*"x",34*/ {0x00,0x00,0x08,0x38,0xD8,0x88,0x00,0x00},/*"y",35*/ {0x00,0x00,0x48,0x78,0x68,0x00,0x00,0x00}/*"z",36*/ }; void delay(void); int8 n; int8 delta_p; int8 *p; void main(void){ int8 i; int8 j; p=&num_tab[0][0]; TMOD=0x01; TH0=0xfc; TL0=0x18; ET0=1; EA=1; TR0=1; while(1) { for(i=0;i<8;i++){ delay(); P0=*(p+delta_p); P2=i|0x18; p++; if(p>&num_tab[0][7]) p=&num_tab[0][0]; } } } void delay(void){ int16 i; for(i=0;i<500;i++); } void timer0() interrupt 1 using 3 { TF0=0; TH0=0xfc; TL0=0x18; if(n<200) { n++; } else { n=0; if(delta_p>240) delta_p=0; else delta_p+=2; } }