单片机C语言之内部EEPROM、延时、数码管综合应用.doc

#include #define uchar unsigned char#include #include #include /定义Flash 操作等待时间及允许IAP/ISP/EEPROM 操作的常数/#define ENABLE_ISP 0x83 /系统工作时钟0;m-)for(n=10;n0;n-)for(s=20;s0;s-);void delay1(uchar z)/延时函数2uchar w,u,v;for(w=z;w0;w-)for(u=20;u0;u-)for(v=200;v0;v-);/*打开 ISP,IAP 功能*/void ISP_IAP_enable(void) EA = 0; ISP_CONTR = ISP_CONTR & 0x18; /* 0001,1000 */ ISP_CONTR = ISP_CONTR | WaitTime; ISP_CONTR = ISP_CONTR | 0x80; /* ISPEN=1 */*关闭 ISP,IAP 功能*/void ISP_IAP_disable(void) ISP_CONTR = ISP_CONTR & 0x7f; /* ISPEN = 0 */ ISP_TRIG = 0x00; EA = 1; /*公用的触发代码*/void ISPgoon(void) ISP_IAP_enable(); ISP_TRIG = 0x46; ISP_TRIG = 0xb9; _nop_();/* 字节读 */unsigned char byte_read(unsigned int byte_addr) ISP_ADDRH = (unsigned char)(byte_addr 8); ISP_ADDRL = (unsigned char)(byte_addr & 0x00ff); ISP_CMD = ISP_CMD & 0xf8; ISP_CMD = ISP_CMD | RdCommand; ISPgoon(); ISP_IAP_disable(); return (ISP_DATA); /* 扇区擦除 */void SectorErase(unsigned int sector_addr) unsigned int iSectorAddr; iSectorAddr = (sector_addr & 0xfe00); ISP_ADDRH = (unsigned char)(iSectorAddr 8); ISP_ADDRL = 0x00; ISP_CMD = ISP_CMD & 0xf8; ISP_CMD = ISP_CMD | EraseCommand; ISPgoon(); ISP_IAP_disable(); /* 字节写 */void byte_write(unsigned int byte_addr, unsigned char original_data) ISP_ADDRH = (unsigned char)(byte_addr 8); ISP_ADDRL = (unsigned char)(byte_addr & 0x00ff); ISP_CMD = ISP_CMD & 0xf8; ISP_CMD = ISP_CMD | PrgCommand; ISP_DATA = original_data; ISPgoon(); ISP_IAP_disable(); void display(uchar a,uchar b) /显示子程序duan1=0;duan2=1;P0=tablea;delay(2);duan1=1;duan2=0;P0=tableb;delay(2);void keyscan() /按键操作 if(m20=1)uchar a0,a1;if(end=0&m20=1) while(!end); m20=0; display(a0,a1);a0=17;a1=ram%10;if(up=0&ram1)while(!dn);ram-; if(set=0&a=1) delay1(10);if(set=0)while(!set); a=0; if(m20=0) uchar b0,b1,off; switch(ram) case 1:off=1;break; case 2:off=2;break; case 3:off=3;break; case 4:off=4;break; case 5:off=5;break; while(m20=0)if(num150) num1=20; if(num250) num2=20; if(num350) num3=20; if(num450) num4=20; if(num550) num5=20; if(set=0) delay1(10); if(set=0) while(!set);m20=1; if(end=0)delay1(10);if(end=0) while(!end);SectorErase(0x2000); byte_write(0x2000,num1);byte_write(0x2001,num2);byte_write(0x2002,num3);byte_write(0x2003,num4);byte_write(0x2004,num5);m20=1;if(off=1)display(b0,b1);b0=num1/10;b1=num1%10;if(up=0)while(!up);num1+;if(dn=0)while(!dn);num1-; if(off=2)display(b0,b1);b0=num2/10;b1=num2%10;if(up=0)while(!up);num2+;if(dn=0)while(!dn);num2-; if(off=3)display(b0,b1);b0=num3/10;b1=num3%10;if(up=0)while(!up);num3+;if(dn=0)while(!dn);num3-; if(off=4)display(b0,b1);b0=num4/10;b1=num4%10;if(up=0)while(!up);num4+;if(dn=0)while(!dn);num4-; if(off=5)display(b0,b1);b0=num5/10;b1=num5%10;if(up=0)while(!up);num5+;if(dn=0)while(!dn);num5-; void main() while(1) if(a=0) num1=byte_read(0x2000); num2=byte_read(0x2001); num3=byte_read(0x2002); num4=byte_read(0x2003); num5=byte_read(0x2004);P0=0xff; while(a=0) if(set=0&a=0) delay1(10);if(set=0)while(!set);a=1; if(x0=0) delay1(num1);y0=0;delay1(num1);y0