生成c51代码:要求在P1.0至P1.7口线_上分别接LED0至LED7八个发光二极管,在P3. 0口线上接一蜂鸣器。要求LED0至LED7以秒速率循环右移,在灯移动的同时,用定时器和计数器来控制蜂鸣器逐位报警
时间: 2024-04-08 11:34:42 浏览: 58
报警器代码用51做的
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好的,下面是符合您要求的C51代码:
```c
#include <reg51.h>
sbit Buzzer = P3^0;
sbit LED0 = P1^0;
sbit LED1 = P1^1;
sbit LED2 = P1^2;
sbit LED3 = P1^3;
sbit LED4 = P1^4;
sbit LED5 = P1^5;
sbit LED6 = P1^6;
sbit LED7 = P1^7;
unsigned int timer_counter = 0;
void delay(unsigned int ms) {
unsigned int i, j;
for (i = 0; i < ms; i++) {
for (j = 0; j < 123; j++);
}
}
void timer_setup() {
TMOD |= 0x01; // Set Timer 0 in mode 1 (16-bit mode)
TH0 = 0xFC; // Set initial value for Timer 0 high byte
TL0 = 0x67; // Set initial value for Timer 0 low byte
TR0 = 1; // Start Timer 0
ET0 = 1; // Enable Timer 0 interrupt
EA = 1; // Enable global interrupts
}
void timer_interrupt() interrupt 1 {
TH0 = 0xFC; // Set initial value for Timer 0 high byte
TL0 = 0x67; // Set initial value for Timer 0 low byte
timer_counter++;
if (timer_counter >= 1000) {
timer_counter = 0;
LED0 = (LED0 << 1) | (LED7 >> 7);
LED1 = (LED1 << 1) | (LED0 >> 7);
LED2 = (LED2 << 1) | (LED1 >> 7);
LED3 = (LED3 << 1) | (LED2 >> 7);
LED4 = (LED4 << 1) | (LED3 >> 7);
LED5 = (LED5 << 1) | (LED4 >> 7);
LED6 = (LED6 << 1) | (LED5 >> 7);
LED7 = (LED7 << 1) | (LED6 >> 7);
Buzzer = LED0; // Enable buzzer if LED0 is on
}
}
void main() {
timer_setup();
while (1) {
// Main program loop
}
}
```
请注意,这段代码假设您正在使用Keil uVision IDE,并且已经正确配置了C51编译器和链接器。如果您使用的是不同的单片机或LED和蜂鸣器连接到不同的引脚,请相应地更新引脚分配。
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