deepseek给我的答案
以下是一个基于STC15W系列单片机的Timer0计数器程序示例，配置为16位计数器模式，支持外部脉冲计数并处理溢出：
```c
#include
#include
unsigned int count_overflows = 0; // 溢出次数计数器
unsigned long total_count = 0; // 总脉冲计数
// Timer0初始化函数
void Timer0_Init(void)
{
TMOD &= 0xF0; // 清除T0原有配置
TMOD |= 0x05; // 设置T0为计数器模式，工作模式1（16位）
TH0 = 0x00; // 初始值高字节
TL0 = 0x00; // 初始值低字节
ET0 = 1; // 使能T0中断
EA = 1; // 全局中断使能
TR0 = 1; // 启动T0计数器
}
// Timer0中断服务函数
void Timer0_ISR(void) interrupt 1
{
count_overflows++; // 溢出次数计数
}
// 获取总脉冲计数
unsigned long Get_Pulse_Count(void)
{
unsigned int current_count;
unsigned long result;
EA = 0; // 暂停中断
current_count = (TH0 << 8) | TL0;
result = (unsigned long)count_overflows * 65536 + current_count;
EA = 1; // 恢复中断
return result;
}
void main(void)
{
Timer0_Init(); // 初始化Timer0
while(1)
{
total_count = Get_Pulse_Count(); // 获取当前总计数
// 在此处添加您的处理代码，例如：
// - 显示计数结果
// - 通过串口发送数据
// - 触发其他操作
// 示例：每50000次计数执行操作
if(total_count % 50000 == 0){
// 执行定期操作
}
}
}
```
### 程序说明：
1. **工作模式**：
- 配置为16位计数器模式（模式1）
- 外部脉冲输入引脚：P3.4（T0引脚）
2. **功能特点**：
- 自动处理16位溢出（最大计数范围：0~4294967295）
- 提供获取总脉冲计数的安全读取函数
- 支持长期连续计数
3. **关键函数**：
- `Timer0_Init()`：初始化Timer0计数器
- `Get_Pulse_Count()`：安全获取当前总脉冲数
- 中断服务程序：自动处理计数器溢出
4. **使用注意事项**：
- 输入脉冲频率不应超过系统时钟频率的1/24
- 脉冲高电平持续时间 > 2个系统时钟周期
- 脉冲低电平持续时间 > 2个系统时钟周期
- 建议在P3.4引脚增加硬件消抖电路（针对机械开关信号）
### 扩展建议：
1. 如需显示数据，可添加LCD显示驱动代码
2. 如需远程监控，可添加串口通信协议
3. 可添加计数复位功能（复位TH0/TL0和count_overflows）
4. 可添加脉冲频率计算功能（配合定时器测量）

25-05-12 17:38

26楼

编辑引用管理

czhaii

#include //
#include //
#define uchar unsigned char
#define uint unsigned int
uchar kcounter;
uchar kstatus;
uint pulse;
sbit IntPut0=P3^2; //
sbit IntPut1=P3^3; //
sbit IntPut2=P3^4; //
sbit IntPut3=P3^5; //
sbit OutPut2=P1^3; //
sbit OutPut3=P1^4; //
sbit OutPut4=P1^5; //
sbit KEY1=P5^4; //
sbit KEY2=P5^5; //
sbit KEY3=P1^6; //
sbit KEY4=P1^7; //
uint Count_A=0; // 总脉冲计数
uint Count_B=0;
bit CountA_Falg;
bit CountB_Falg;
sbit OLED_SCL=P1^1; //
sbit OLED_SDA=P1^0; //
#define high 1
#define low 0
/*************Pin Define***************/
void Initial_LY096BG30();
void Delay_50ms(uint Del_50ms);
void fill_picture(uchar fill_Data);
void IIC_Start();
void IIC_Stop();
void Write_IIC_Command(uchar IIC_Command);
void Write_IIC_Data(uchar IIC_Data);
bit Write_IIC_Byte(uchar IIC_Byte);
void dis_Value(uchar s);
/***********************0--A字符表*************************/
uchar code show1[]=
{
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,/*"0",0*/
0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,/*"1",1*/
0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,/*"2",2*/
0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,/*"3",3*/
0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,/*"4",4*/
0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,/*"5",5*/
0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,/*"6",6*/
0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,/*"7",7*/
0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,/*"8",8*/
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,/*"9",9*/
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x1F,0x01,0x01,0x01,0x01,0x1F,0x00,/*"A",10*/
0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,/*"D",11*/
0x08,0xF8,0x00,0xF8,0x00,0xF8,0x08,0x00,0x00,0x03,0x3E,0x01,0x3E,0x03,0x00,0x00,/*"W",12*/
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,/*"O",13*/
0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,/*"N",14*/
};
/***********************0--A字符表*************************/
uchar code show2[]=
{
//电(0) 机(1) 开(2) 关(3) 一(4) 二(5) 三(6) 四(7) 五(8) 六(9) 七(10) 八(11) 九(12) 十(13)
0x00,0x00,0xF8,0x88,0x88,0x88,0x88,0xFF,0x88,0x88,0x88,0x88,0xF8,0x00,0x00,0x00,
0x00,0x00,0x1F,0x08,0x08,0x08,0x08,0x7F,0x88,0x88,0x88,0x88,0x9F,0x80,0xF0,0x00,/*"电",0*/
0x10,0x10,0xD0,0xFF,0x90,0x10,0x00,0xFE,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,
0x04,0x03,0x00,0xFF,0x00,0x83,0x60,0x1F,0x00,0x00,0x00,0x3F,0x40,0x40,0x78,0x00,/*"机",1*/
0x80,0x82,0x82,0x82,0xFE,0x82,0x82,0x82,0x82,0x82,0xFE,0x82,0x82,0x82,0x80,0x00,
0x00,0x80,0x40,0x30,0x0F,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,/*"开",2*/
0x00,0x00,0x10,0x11,0x16,0x10,0x10,0xF0,0x10,0x10,0x14,0x13,0x10,0x00,0x00,0x00,
0x81,0x81,0x41,0x41,0x21,0x11,0x0D,0x03,0x0D,0x11,0x21,0x41,0x41,0x81,0x81,0x00,/*"关",3*/
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"一",4*/
0x00,0x00,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x00,0x00,0x00,
0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00,/*"二",5*/
0x00,0x04,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x04,0x00,0x00,
0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x00,/*"三",6*/
0x00,0xFC,0x04,0x04,0x04,0xFC,0x04,0x04,0x04,0xFC,0x04,0x04,0x04,0xFC,0x00,0x00,
0x00,0x7F,0x28,0x24,0x23,0x20,0x20,0x20,0x20,0x21,0x22,0x22,0x22,0x7F,0x00,0x00,/*"四",7*/
0x00,0x02,0x42,0x42,0x42,0xC2,0x7E,0x42,0x42,0x42,0x42,0xC2,0x02,0x02,0x00,0x00,
0x40,0x40,0x40,0x40,0x78,0x47,0x40,0x40,0x40,0x40,0x40,0x7F,0x40,0x40,0x40,0x00,/*"五",8*/
0x20,0x20,0x20,0x20,0x20,0x20,0x21,0x22,0x2C,0x20,0x20,0x20,0x20,0x20,0x20,0x00,
0x00,0x40,0x20,0x10,0x0C,0x03,0x00,0x00,0x00,0x01,0x02,0x04,0x18,0x60,0x00,0x00,/*"六",9*/
0x80,0x80,0x80,0x80,0x80,0x40,0xFF,0x40,0x40,0x40,0x20,0x20,0x20,0x20,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,0x40,0x40,0x40,0x40,0x78,0x00,0x00,/*"七",10*/
0x00,0x00,0x00,0x00,0x00,0xFC,0x00,0x00,0x00,0x7E,0x80,0x00,0x00,0x00,0x00,0x00,
0x00,0x80,0x60,0x18,0x07,0x00,0x00,0x00,0x00,0x00,0x03,0x0C,0x30,0x40,0x80,0x00,/*"八",11*/
0x00,0x10,0x10,0x10,0x10,0xFF,0x10,0x10,0x10,0x10,0xF0,0x00,0x00,0x00,0x00,0x00,
0x80,0x40,0x20,0x18,0x07,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,0x40,0x78,0x00,/*"九",12*/
0x40,0x40,0x40,0x40,0x40,0x40,0x40,0xFF,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"十",13*/
};
/**************Delay*******************************/
void Delay_50ms(uint Del_50ms) //
{
uint m;
for(;Del_50ms>0;Del_50ms--)
for(m=62450;m>0;m--);
}
/*******************IIC Start******************/
void IIC_Start()
{
OLED_SCL=high;
OLED_SDA=high;
_nop_();
OLED_SDA=low;
_nop_();_nop_();
OLED_SCL=low;
}
/*************IIC Stop*************************/
void IIC_Stop()
{
OLED_SDA=low;
_nop_();
OLED_SCL=high;
_nop_();_nop_();
OLED_SDA=high;
}
/*****************IIC Write byte***************/
bit Write_IIC_Byte(unsigned char IIC_Byte)
{
unsigned char i;
bit Ack_Bit; //应答信号
for(i=0;i<8;i++)
{
if(IIC_Byte & 0x80) //1?0?
OLED_SDA=high;
else
OLED_SDA=low;
OLED_SCL=high;
_nop_();_nop_();
OLED_SCL=low;
IIC_Byte<<=1; //loop
}
OLED_SDA=high; //释放IIC SDA总线为主器件接收从器件产生应答信号
_nop_();_nop_();
OLED_SCL=high; //第9个时钟周期
_nop_();_nop_();
Ack_Bit=OLED_SDA; //读取应答信号
OLED_SCL=low;
return Ack_Bit;
}
/*************IIC Write Command*****************/
void Write_IIC_Command(unsigned char IIC_Command)
{
IIC_Start();
Write_IIC_Byte(0x78); //Slave address,SA0=0
Write_IIC_Byte(0x00); //write command
Write_IIC_Byte(IIC_Command);
IIC_Stop();
}
/****************IIC Write Data*****************/
void Write_IIC_Data(uchar IIC_Data)
{
IIC_Start();
Write_IIC_Byte(0x78);
Write_IIC_Byte(0x40); //write data
Write_IIC_Byte(IIC_Data);
IIC_Stop();
}
/********************picture**********************/
void Clear_disp()
{
uchar x,y;
for(y=0;y<8;y++)
{
Write_IIC_Command(0xb0+y);
Write_IIC_Command(0x00);
Write_IIC_Command(0x10);
for(x=0;x<128;x++) //横向像素
{
Write_IIC_Data(0X00);
}
}
}
/***********************Initial code*********************/
void Initial_LY096BG30()
{
Write_IIC_Command(0xAE); //display off
Write_IIC_Command(0x20); //Set Memory Addressing Mode
Write_IIC_Command(0x10); //00,Horizontal Addressing Mode;01,Vertical Addressing Mode;10,Page Addressing Mode (RESET);11,Invalid
Write_IIC_Command(0xb0); //Set Page Start Address for Page Addressing Mode,0-7
Write_IIC_Command(0xc8); //Set COM Output Scan Direction
Write_IIC_Command(0x00); //---set low column address
Write_IIC_Command(0x10); //---set high column address
Write_IIC_Command(0x40); //--set start line address
Write_IIC_Command(0x81); //--set contrast control register
Write_IIC_Command(0x7f);
Write_IIC_Command(0xa1); //--set segment re-map 0 to 127
Write_IIC_Command(0xa6); //--set normal display
Write_IIC_Command(0xa8); //--set multiplex ratio(1 to 64)
Write_IIC_Command(0x3F); //
Write_IIC_Command(0xa4); //0xa4,Output follows RAM content;0xa5,Output ignores RAM content
Write_IIC_Command(0xd3); //-set display offset
Write_IIC_Command(0x00); //-not offset
Write_IIC_Command(0xd5); //--set display clock divide ratio/oscillator frequency
Write_IIC_Command(0xf0); //--set divide ratio
Write_IIC_Command(0xd9); //--set pre-charge period
Write_IIC_Command(0x22); //
Write_IIC_Command(0xda); //--set com pins hardware configuration
Write_IIC_Command(0x12);
Write_IIC_Command(0xdb); //--set vcomh
Write_IIC_Command(0x20); //0x20,0.77xVcc
Write_IIC_Command(0x8d); //--set DC-DC enable
Write_IIC_Command(0x14); //
Write_IIC_Command(0xaf); //--turn on oled panel
}
/****************按键计数器状态寄存器归零*************/
void RstKey(void)
{
kcounter=0; //按键计数器归零
kstatus=0; //状态寄存器归零
}
/*****************按键低电平检测函数*****************/
void LowVoltKey(void) //按键计数器状态标志加一
{
kcounter++;
kstatus++;
_nop_(); //延时
}
/*****************按键低电平检测函数*****************/
void HighVoltKey(void)
{
kcounter++;
kstatus=0;
_nop_(); //延时
}
/*****16X16中文字体显示子程序 dd字符数组地址***/
/***xx横向坐标 10～17 yy竖向坐标B0 B2 B4 B6***/
/***void Display(0x10,0XB0,0X00)***/
void Display(uchar xx,yy, uint dd)
{
uchar x,y;
uint i=0;
uint Cnt=32;
for(y=0;y<2;y++)
{
Write_IIC_Command(yy+y); //竖向第yy行 yy=0XB0 0XB2 0XB4 0XB6
Write_IIC_Command(0x00); //
Write_IIC_Command(xx); //横向第XX个字
for(x=0;x<16;x++) //横向像素
{
Write_IIC_Data(show2[x+y*16+Cnt*dd]); //字符表第dd个字
}
}
}
/*****************脉冲计数器显示****************/
void DisCountA(uint Count)
{
uchar A1,A2,A3,A4;
uchar x,y;
uint i=0;
A1=Count/1000;
A2=(Count-A1*1000)/100;
A3=(Count-A1*1000-A2*100)/10;
A4=Count-A1*1000-A2*100-A3*10;
for(y=0;y<2;y++) //百位显示
{
Write_IIC_Command(0XB0+y); //纵向页
Write_IIC_Command(00); //横向离左部边缘开始的距离
Write_IIC_Command(0X14); //横向第四个字
for(x=0;x<8;x++) //横向像素
{
Write_IIC_Data(show1[x+y*8+A1*16]); //千位显示 0--A字符表
}
for(x=0;x<8;x++) //横向像素
{
Write_IIC_Data(show1[x+y*8+A2*16]); //百位显示
}
}
for(y=0;y<2;y++)
{
Write_IIC_Command(0XB0+y); //纵向页
Write_IIC_Command(00); //横向离左部边缘开始的距离
Write_IIC_Command(0X15); //横向第五个字
for(x=0;x<8;x++) //横向像素
{
Write_IIC_Data(show1[x+y*8+A3*16]); //十位位显示
}
for(x=0;x<8;x++) //横向像素
{
Write_IIC_Data(show1[x+y*8+A4*16]); //个位显示
}
}
}
/*****************脉冲计数器显示****************/
void DisCountB(uint Count)
{
uchar A1,A2,A3,A4;
uchar x,y;
uint i=0;
A1=Count/1000;
A2=(Count-A1*1000)/100;
A3=(Count-A1*1000-A2*100)/10;
A4=Count-A1*1000-A2*100-A3*10;
for(y=0;y<2;y++) //百位显示
{
Write_IIC_Command(0XB2+y); //纵向页
Write_IIC_Command(00); //横向离左部边缘开始的距离
Write_IIC_Command(0X14); //横向第四个字
for(x=0;x<8;x++) //横向像素
{
Write_IIC_Data(show1[x+y*8+A1*16]); //千位显示 0--A字符表
}
for(x=0;x<8;x++) //横向像素
{
Write_IIC_Data(show1[x+y*8+A2*16]); //百位显示
}
}
for(y=0;y<2;y++)
{
Write_IIC_Command(0XB2+y); //纵向页
Write_IIC_Command(00); //横向离左部边缘开始的距离
Write_IIC_Command(0X15); //横向第五个字
for(x=0;x<8;x++) //横向像素
{
Write_IIC_Data(show1[x+y*8+A3*16]); //十位位显示
}
for(x=0;x<8;x++) //横向像素
{
Write_IIC_Data(show1[x+y*8+A4*16]); //个位显示
}
}
}
/***************************************/
void exint0() interrupt 0 //INT0中断入口
{
CountA_Falg=1;
if(!IntPut2)
Count_A--;
else
Count_A++;
}
/***************************************/
void exint1() interrupt 2 //INT1中断入口
{
CountB_Falg=1;
if(!IntPut3)
Count_B--;
else
Count_B++;
}
/***************************************/
void main() //
{
P1M0=0X00; //1.0~1.5准双向输入
P1M1=0X00; //1.6~1.7推挽输出
P3M0=0X00; //准双向输入
P3M1=0X00; //准双向输入
P5M0=0X30; //
P5M1=0X00; //
IT0 = 1; //设置INT0的中断类型 (1:仅下降沿 0:上升沿和下降沿)
EX0 = 1; //使能INT0中断
IT1 = 1; //设置INT0的中断类型 (1:仅下降沿 0:上升沿和下降沿)
EX1 = 1; //使能INT0中断
EA=1; //
Count_A=0;
Initial_LY096BG30();
Clear_disp();
Delay_50ms(20);
Display(0X17,0XB0,1); //
DisCountA(Count_A);
DisCountB(Count_B);
RstKey();
LowVoltKey();
HighVoltKey();
while(1) //
{
if(CountA_Falg==1)
{
CountA_Falg=0;
DisCountA(Count_A);
}
if(CountB_Falg==1)
{
CountB_Falg=0;
DisCountB(Count_B);
}
//
RstKey();
for(;kcounter<10;) //按键循环5次
{
if(!KEY1) //按键低电平
{
LowVoltKey(); //按键低电平清除计数器
}
else if(~!KEY1) //按键高电平
{
HighVoltKey(); //按键计数器加一状态计数器加一
}
}
if(kstatus>=8) /*按键状态标志大于等于3为有效值*/
{
pulse=0;
for(;pulse<50;)
{
pulse++;
OutPut2=~OutPut2;
Delay_50ms(1);
}
}
//
RstKey();
for(;kcounter<10;) //按键循环5次
{
if(!KEY2) //按键低电平
{
LowVoltKey(); //按键低电平清除计数器
}
else if(~!KEY2) //按键高电平
{
HighVoltKey(); //按键计数器加一状态计数器加一
}
}
if(kstatus>=8) /*按键状态标志大于等于3为有效值*/
{
pulse=0;
for(;pulse<50;)
{
pulse++;
OutPut3=~OutPut3;
Delay_50ms(1);
}
}
//
} //
} //L421 CODE2310

25-05-13 10:26

主题：想做一个高速计数器计脉冲，三菱PLC不知道能不能实现。

知道一点

设备电工

知道一点

czhaii

设备电工

czhaii

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