51单片机-定时器-proteus仿真

这是代码

#include "reg51.h"
#define u16 unsigned int
#define u8 unsigned char
#define FOSC 11059200L
#define BAUD 9600
#define T0MS (65536 - 1 * FOSC / 12 / 1000)
#define T1MS (65536 - 1 * FOSC / 12 / 1000)

sbit kaiguan = P1 ^ 0;
u8 code leddat[] = {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x81, 0x82,
                    0x84, 0x88, 0x90, 0xa0, 0xc0, 0xc1, 0xc2, 0xc4, 0xc8, 0xd0,
                    0xe0, 0xe1, 0xe2, 0xe4, 0xe8, 0xf0, 0xf1, 0xf2, 0xf4, 0xf8,
                    0xf9, 0xfa, 0xfc, 0xfd, 0xfe, 0xff, 0xff, 0x00, 0xff, 0x00};
// gong yin
u8 code gongyin_smg[] = {0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f, 0x77, 0x7c, 0x39, 0x5e, 0x79, 0x71};
// gong yang
u8 code gongyang_smg[] = {0xc0, 0xf9, 0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8, 0x80, 0x90, 0x88, 0x83, 0xc6, 0xa1, 0x86, 0x8e};
// string
u8 code str[] = {0x76, 0x79, 0x38, 0x38, 0x3f}; // hello
//
u8 code smg_pos[] = {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80};
u8 code smg_pos_2[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x06, 0x07};

u8 num = 0;
u8 kaiguan_flag = 0;
u16 timer0_count = 0;
u16 timer1_count = 0;
u8 timer0_num = 0;
u8 timer1_num = 0;

// void initUART(void)
// {
//     SCON = 0x50;//8bit data
// }

void delayms(u16 n)
{
    u16 i = 0, j = 0;
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < 120; j++)
            ;
    }
}

void multi_smg()
{
    u8 i;
    for (i = 0; i < sizeof(str) / sizeof(str[0]); i++)
    {
        P2 = ~smg_pos[i];
        P3 = smg_pos_2[i];
        P1 = str[i];
        delayms(5);
    }
}

void key_scan()
{
    // u8 i;
    if (kaiguan == 0 && kaiguan_flag == 0)
    {
        kaiguan_flag = 1;
        // delayms(100);
        // if (kaiguan == 0)
        // {
        //     P3 = gongyin_smg[num];
        //     num++;
        //     if (num == 16)
        //     {
        //         num = 0;
        //     }
        // }
        // delayms(100);
    }
    if (kaiguan_flag == 1 && kaiguan == 1)
    {
        P3 = gongyin_smg[num];
        num++;
        kaiguan_flag = 0;
        if (num == 10)
        {
            num = 0;
        }
    }
}

void key_scan2()
{
    u8 row, col;
    P2 = 0xf0;
    if (P2 != 0xf0)
    {
        delayms(20);
        row = P2;
        P2 = 0x0f;
        if (P2 != 0x0f)
        {
            col = P2;
        }
    }
    if (col == 0x0e)
    {
        switch (row)
        {
        case 0xe0:
            P3 = gongyin_smg[1];
            P1 = gongyin_smg[1];
            break;
        case 0xd0:
            P3 = gongyin_smg[2];
            P1 = gongyin_smg[1];
            break;
        case 0xb0:
            P3 = gongyin_smg[3];
            P1 = gongyin_smg[1];
            break;
        case 0x70:
            P3 = gongyin_smg[4];
            P1 = gongyin_smg[1];
            break;
        }
    }
    if (col == 0x0d)
    {
        switch (row)
        {
        case 0xe0:
            P3 = gongyin_smg[1];
            P1 = gongyin_smg[2];
            break;
        case 0xd0:
            P3 = gongyin_smg[2];
            P1 = gongyin_smg[2];
            break;
        case 0xb0:
            P3 = gongyin_smg[3];
            P1 = gongyin_smg[2];
            break;
        case 0x70:
            P3 = gongyin_smg[4];
            P1 = gongyin_smg[2];
            break;
        }
    }
    if (col == 0x0b)
    {
        switch (row)
        {
        case 0xe0:
            P3 = gongyin_smg[1];
            P1 = gongyin_smg[3];
            break;
        case 0xd0:
            P3 = gongyin_smg[2];
            P1 = gongyin_smg[3];
            break;
        case 0xb0:
            P3 = gongyin_smg[3];
            P1 = gongyin_smg[3];
            break;
        case 0x70:
            P3 = gongyin_smg[4];
            P1 = gongyin_smg[3];
            break;
        }
    }
    if (col == 0x07)
    {
        switch (row)
        {
        case 0xe0:
            P3 = gongyin_smg[1];
            P1 = gongyin_smg[4];
            break;
        case 0xd0:
            P3 = gongyin_smg[2];
            P1 = gongyin_smg[4];
            break;
        case 0xb0:
            P3 = gongyin_smg[3];
            P1 = gongyin_smg[4];
            break;
        case 0x70:
            P3 = gongyin_smg[4];
            P1 = gongyin_smg[4];
            break;
        }
    }
    // if (row + col == 0xee)
    // {
    //     P3 = gongyin_smg[1];
    // }
}

void liushuideng2()
{
    u8 i = 0;
    for (i = 0; i < sizeof(leddat) / sizeof(leddat[0]); i++)
    {
        P2 = ~leddat[i];
        delayms(100);
    }
}

void shumaguan()
{
    u8 i;
    for (i = 0; i < sizeof(gongyin_smg) / sizeof(gongyin_smg[0]); i++)
    {
        P2 = gongyin_smg[i];
        delayms(100);
        P3 = gongyang_smg[i];
        delayms(100);
        P1 = gongyin_smg[i];
        delayms(100);
    }
}

void liushuideng()
{
    u8 i = 0;
    for (i = 0; i < 8; i++)
    {
        P2 = ~0x01 << i;
        P1 = 0x01 << i;
        delayms(100);
    }
}

void initTimer0()
{
    TMOD = 0x01;
    TH0 = T0MS / 256;
    TL0 = T0MS % 256;
    TF0 = 0;
    ET0 = 1;
    // EA = 1;
    TR0 = 1;
}
void initTimer1()
{
    TMOD = 0x10;
    TH1 = T1MS / 256;
    TL1 = T1MS % 256;
    TF1 = 0;
    ET1 = 1;
    // EA = 1;
    TR1 = 1;
}
// 0 out interrupt 0
// 1 timer interrupt 0
// 2 out interrupt 1
// 3 timer interrupt 1
// 4 serial interrupt

void initTime()
{
    EA = 1;
    initTimer0();
    initTimer1();
}

void initUART(void)
{
    ES = 1;
}

void main()
{
    initTime();
    while (1)
        ;
    // {
    //     //     // liushuideng2();
    //     //     // shumaguan();
    //     //     // multi_smg();
    //     //     // key_scan();
    //     //     // key_scan2();
    //     //     // initUART();
    //     //     // led = 0;
    //     //     // delayms(100);
    //     //     // led = 1;
    //     //     // delayms(100);
    // }
}
void Timer0_ISR(void) interrupt 1 using 2
{
    timer0_count++;
    if (timer0_count == 1000)
    {
        timer0_num++;
        P3 = gongyin_smg[timer0_num];
        if (timer0_num == 9)
        {
            timer0_num = 0;
        }
        timer0_count = 0;
    }
    TH0 = T0MS / 256;
    TL0 = T0MS % 256;
    TF0 = 0;
}
void Timer1_ISR(void) interrupt 3 using 3
{
    timer1_count++;
    if (timer1_count == 1000)
    {
        timer1_num++;
        P1 = gongyin_smg[timer1_num];
        if (timer1_num == 9)
        {
            timer1_num = 0;
        }
        timer1_count = 0;
    }
    TH1 = T1MS / 256;
    TL1 = T1MS % 256;
    TF1 = 0;
}

 

这是proteus，通过计时器将P3连接的共阴极数码管点亮，从1-9显示，当然代码里还包含了矩阵键盘，单个按键的代码，只要检测按键按起状态，代替了之前的delay方法来进行消抖