程序

void time (unsigned int ucMs); void initUart(void);

void main (void) {

unsigned char ucTimer;

initUart(); ucTimer=0; while (1) {

if(ucTimer<=0x0f){ printf(\"current data-out of P2-port:0%BX\\n\ } else{ printf(\"current data-out of P2-port:%BX\\n\ } P2=ucTimer; ucTimer++; time(1000); } }

void initUart(void) {

SCON=0x50;

RCAP2H=(65536-(3456/96))/256; RCAP2L=(65536-(3456/96))%256; T2CON=0x34; TI =1; }

void delay_5us(void) {

_nop_(); _nop_(); _nop_();

_nop_(); }

void delay_50us(void) {

unsigned char i; for(i=0;i<4;i++) {

delay_5us(); } }

void delay_100us(void) {

delay_50us(); delay_50us(); }

void time(unsigned int ucMs) {

unsigned char j; while(ucMs>0){

for(j=0;j<10;j++) delay_100us(); ucMs--; } }