蓝桥杯单片机ne555频率代码

/* * @Description: * @Version: 2.0 * @Autor: JinChao * @Date: 2023-11-25 21:26:52 * @LastEditors: JinChao * @LastEditTime: 2023-12-03 11:17:46 */ #include "reg52.h" #include "seg.h" typedef unsigned int uint16; typedef unsigned char uint8; sfr AUXR = 0x8e; uint16 count = 0; void Timer0_Init(void) //计数器0初始化 { TMOD &= 0xF0; //设置定时器模式 TMOD |= 0x05; //设置定时器模式 TL0 = 0x00; //设置计数初始值 TH0 = 0x00; //设置计数初始值 TF0 = 0; //清除TF0标志 TR0 = 1; //允许计数器计数 ET0 = 0; //禁止计数器中断 } void Timer1_Init(void) //2毫秒@12.000MHz { AUXR |= 0x40; //定时器时钟1T模式 TMOD &= 0x0F; //设置定时器模式 TL1 = 0x40; //设置定时初始值 TH1 = 0xA2; //设置定时初始值 TF1 = 0; //清除TF1标志 TR1 = 1; //定时器1开始计时 ET1 = 1; } uint16 get_count() { uint16 count_tmp = TH0 << 8 | TL0; TL0 = 0x00; // 设置定时初始值 TH0 = 0x00; // 设置定时初始值 if (TF0) return 0xffff; else return count_tmp; } void main() { Timer0_Init(); Timer1_Init(); EA = 1; while(1) { int i; } } uint16 timer1_2ms = 0; void Timer1_Isr(void) interrupt 3 { seg_server(); timer1_2ms = (timer1_2ms + 1) % 500; if(timer1_2ms == 0) { count = get_count(); seg_buff[0] = seg_value[count/10000%10]; seg_buff[1] = seg_value[count/1000%10]; seg_buff[2] = seg_value[count/100%10]; seg_buff[3] = seg_value[count/10%10]; seg_buff[4] = seg_value[count%10]; } }