程式碼:

#include

#define LED_PORT P1

void delay(unsigned int time) {

    unsigned int i, j;

    for (i = 0; i < time; i++) {

        for (j = 0; j < 120; j++);

    }

}

void main() {

    unsigned char pattern = 0x01; 

    while (1) {

        LED_PORT = ~pattern; 

        delay(500);

        pattern <<= 1="" p="">

        if (pattern == 0x00) {

            pattern = 0x01; 

        }

    }

}