流水灯左右走程序.docx
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图加程序
单片机源程序如下:
- #include <REG52.H>
- void Delay1ms(unsigned int count)
- {
- unsigned int i,j;
- for(i=0;i<count;i++)
- for(j=0;j<120;j++);
- }
- main()
- {
- unsigned char LEDIndex = 0;
- bit LEDDirection = 1;
- while(1)【满足条件执行下面程序】
- {
- if(LEDDirection)
- P1 = ~(0x01<<LEDIndex);【满足】<<表示逻辑移位
- else
- P1 = ~(0x80>>LEDIndex);【不满足】~表示按位取反
- if(LEDIndex==7)
- LEDDirection = !LEDDirection;
- LEDIndex = (LEDIndex+1)%8; 【%】取余数
- Delay1ms(100);
- }
- }
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