tt.c

很有用的CYGNAL C语言程序,

#include<c8051f020.h>

main()
{
long int a=500000;
WDTCN=0xDE;
WDTCN=0xAD;
XBR2=0x40;
P1MDOUT=0xFF;
for(;;)
{
P1=0xff;
for(a;a>0;a--);
a=500000;
P1=0x00;
for(a;a>0;a--);
a=500000;
}
}