(资料图片仅供参考)

这节课,真没意思,不想做,拖了好几天,快没感觉了

//跟堂作业:秒表#include <>typedef signed char i8;typedef unsigned char u8;typedef signed int i16;typedef unsigned int u16;typedef signed long i32;typedef unsigned long u32;sbit ADDR3 = P1 ^ 3;sbit ENLED = P1 ^ 4;sbit KEY1 = P2 ^ 4;sbit KEY2 = P2 ^ 5;sbit KEY3 = P2 ^ 6;sbit KEY4 = P2 ^ 7;u8 code LedChar[16] ={    0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8,    0x80, 0x90, 0x88, 0x83, 0xC6, 0xA1, 0x86, 0x8E};u8 LedBuff[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};u8 KeySta[4] = {1, 1, 1, 1};u8 TH0RL = 0;u8 TL0RL = 0;bit StopWatchRefresh = 1; // 0=不需要刷新,1=需要刷新数码管u8 DecimalPart = 0;      // 小数部分u16 IntegerPart = 0;      // 整数部分bit StopWatchRunning = 0; // 0=停,1=正在工作void ConfigTimer0(u16 ms){    u32 tmp;    tmp = 11059200 / 12;    tmp = tmp * ms / 1000;    tmp = 65536 - tmp;    tmp += 18; // 补偿值    TH0 = TH0RL = (u8)(tmp >> 8);    TL0 = TL0RL = (u8)tmp;    TMOD ^= 0xF0;    TMOD |= 0x01;    ET0 = TR0 = 1;}void StopWatchReset(void){    StopWatchRunning = 0;    DecimalPart = 0;    IntegerPart = 0;    StopWatchRefresh = 1;}void StopWatchAction(void){    StopWatchRunning = !StopWatchRunning;}void StopWatchCount(void){    if (StopWatchRunning)    {        DecimalPart++;        if (DecimalPart >= 100)        {            DecimalPart = 0;            IntegerPart++;            if (IntegerPart >= 10000)            {                IntegerPart = 0;            }        }        StopWatchRefresh = 1;    }}void StopWatchDisplay(void){    u8 i, j;    u8 buf[4];    LedBuff[0] = LedChar[DecimalPart % 10];    LedBuff[1] = LedChar[DecimalPart / 10];    buf[0] = IntegerPart % 10;    buf[1] = IntegerPart / 10 % 10;    buf[2] = IntegerPart / 100 % 10;    buf[3] = IntegerPart / 1000 % 10;    for (i = 3; i >= 1; i--)    {        if (buf[i] == 0)        {            LedBuff[i + 2] = 0xFF;        }        else        {            break;        }    }    for (j = 0; j <= i; j++)    {        LedBuff[j + 2] = LedChar[buf[j]];    }    LedBuff[2] &= 0x7F; // 加小数点}void KeyDriver(void){    u8 i;    static u8 backup[4] = {1, 1, 1, 1};    for (i = 0; i < 4; i++)    {        if (backup[i] != KeySta[i])        {            if (backup[i] != 0) // 按下处理            {                if (i == 1) // Esc键,复位秒表                {                    StopWatchReset();                }                else if (i == 2) // 回车键,启停秒表                {                    StopWatchAction();                }            }            backup[i] = KeySta[i];        }    }}void main(void){    EA = 1;    ENLED = 0;    ADDR3 = 1;    P2 = 0xFE; // 1111-1110    ConfigTimer0(2); // 2ms    while (1)    {        if (StopWatchRefresh)        {            StopWatchRefresh = 0;            StopWatchDisplay();        }        KeyDriver();    }}void LedScan(void){    static u8 i = 0;    P0 = 0xFF;    P1 = (P1 & 0xF8) | i;    P0 = LedBuff[i];    if (i < 5)        i++;    else        i = 0;}void KeyScan(void){    static u8 keybuff[4] = {0xFF, 0xFF, 0xFF, 0xFF};    u8 i;    keybuff[0] = (keybuff[0] << 1) | KEY1;    keybuff[1] = (keybuff[1] << 1) | KEY2;    keybuff[2] = (keybuff[2] << 1) | KEY3;    keybuff[3] = (keybuff[3] << 1) | KEY4;    for (i = 0; i < 3; i++)    {        if (keybuff[i] == 0xFF)            KeySta[i] = 1;        else if (keybuff[i] == 0)            KeySta[i] = 0;    }}void Timer0_ISR(void) interrupt 1{    static u8 tmr10ms = 0;    TH0 = TH0RL;    TL0 = TL0RL;    LedScan();    KeyScan();    tmr10ms++;    if (tmr10ms >= 5)    {        tmr10ms = 0;        StopWatchCount();    }}//跟堂作业,PWM#include <>typedef unsigned char u8;typedef unsigned int  u16;typedef unsigned long u32;typedef signed char i8;typedef signed int  i16;typedef signed long i32;sbit PWMOUT=P0^0;sbit ADDR0=P1^0;sbit ADDR1=P1^1;sbit ADDR2=P1^2;sbit ADDR3=P1^3;sbit ENLED=P1^4;u8 lowRH,lowRL;u8 highRH,highRL;void ConfigPWM( u16 freq, u8 dc ) {    u32 tmp;    u16 high,low;    tmp=11059200/12/freq;//计数值    high=tmp*dc/100;//高电平计数值    low=tmp-high;//低电平计数值        high=65536-high+12;//补偿,初值    low=65536-low+12;//补偿,初值    highRH=(u8)(high>>8);    highRL=(u8)(high);    lowRH=(u8)(low>>8);    lowRL=(u8)low;    TMOD&=0xF0;    TMOD|=0x01;    TH0=highRH;    TL0=highRL;    ET0=TR0=1;    PWMOUT=1;}void ClosePWM(void) {    ET0=TR0=0;    PWMOUT=1;}void main(void){    u16 i;    EA=1;    ENLED=0;    ADDR3=1;    ADDR2=1;    ADDR1=1;    ADDR0=0;    while(1)    {        ConfigPWM(100,10);        for(i=0;i<40000;i++);        ConfigPWM(100,40);        for(i=0;i<40000;i++);        ConfigPWM(100,90);        for(i=0;i<40000;i++);        ClosePWM();        for(i=0;i<40000;i++);    }}void Timer0_ISR(void) interrupt 1{    if(PWMOUT==1)    {        TH0=lowRH;        TL0=lowRL;        PWMOUT=0;    }    else    {        TH0=highRH;        TL0=highRL;        PWMOUT=1;    }}//跟堂作业,呼吸灯#include <>typedef unsigned char u8;typedef unsigned int  u16;typedef unsigned long u32;typedef signed char i8;typedef signed int  i16;typedef signed long i32;u8 lowRH,lowRL;u8 highRH,highRL;u8 TH1RL,TL1RL;u32 PeriodCnt;sbit PWMOUT=P0^0;sbit ADDR0=P1^0;sbit ADDR1=P1^1;sbit ADDR2=P1^2;sbit ADDR3=P1^3;sbit ENLED=P1^4;void ConfigPWM( u16 freq, u8 dc ) {    u16 high,low;    PeriodCnt=11059200/12/freq;//计数值    high=PeriodCnt*dc/100;//高电平计数值    low=PeriodCnt-high;//低电平计数值    high=65536-high+12;//补偿,初值    low=65536-low+12;//补偿,初值    highRH=(u8)(high>>8);    highRL=(u8)(high);    lowRH=(u8)(low>>8);    lowRL=(u8)low;    TMOD&=0xF0;    TMOD|=0x01;    TH0=highRH;    TL0=highRL;    ET0=TR0=1;    PWMOUT=1;}void ConfigTimer1( u16 ms ){    u32 tmp;        tmp=11059200/12*ms/1000;    tmp=65536-tmp;    tmp+=12;//补偿    TH1RL=(u8)(tmp>>8);    TL1RL=(u8)tmp;    TMOD&=0x0F;    TMOD|=0x10;    TH1=TH1RL;    TL1=TL1RL;    ET1=TR1=1;}void ClosePWM(void) {    ET0=TR0=0;    PWMOUT=1;}void main(void){    EA=1;    ENLED=0;    ADDR3=1;    ADDR2=1;    ADDR1=1;    ADDR0=0;    ConfigPWM(100,10);//100Hz,占空比10    ConfigTimer1(50);//50ms    while(1);}void Timer0_ISR(void) interrupt 1{    if(PWMOUT==1)    {        TH0=lowRH;        TL0=lowRL;        PWMOUT=0;    }    else    {        TH0=highRH;        TL0=highRL;        PWMOUT=1;    }}void AdjuctDutyCycle( u8 dc ) {    u16 high,low;        high=PeriodCnt*dc/100;//高电平计数值    low=PeriodCnt-high;//低电平计数值    high=65536-high+12;//补偿,初值    low=65536-low+12;//补偿,初值    highRH=(u8)(high>>8);    highRL=(u8)(high);    lowRH=(u8)(low>>8);    lowRL=(u8)low;}void Timer1_ISR(void) interrupt 3{    u8 code table[13]={5,18,30,41,51,60,68,75,81,86,90,93,95};    static bit dir=0;    static u8 index=0;    TH1=TH1RL;    TL1=TL1RL;    AdjuctDutyCycle(table[index]);    if(dir==0)    {        index++;        if(index>=12)dir=1;    }    else    {        index--;        if(index==0)dir=0;    }}//跟堂作业,交通灯--改进版#include ""typedef signed char i8;typedef unsigned char u8;typedef signed int i16;typedef unsigned int u16;typedef signed long i32;typedef unsigned long u32;sbit ADDR3 = P1 ^ 3;sbit ENLED = P1 ^ 4;u8 code LedChar[] = { // 数码管显示字符转换表    0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8,    0x80, 0x90, 0x88, 0x83, 0xC6, 0xA1, 0x86, 0x8E};u8 LedBuff[8] = { // 数码管+独立LED显示缓冲区    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};bit flag1s = 1;u8 TH0RL = 0;u8 TL0RL = 0;void ConfigTimer0(u16 ms);void TrafficLight();void main(void){    EA = 1;       // 开总中断    ENLED = 0; // 使能数码管和LED    ADDR3 = 1;    ConfigTimer0(1); // 配置T0定时1ms    while (1)    {        if (flag1s) // 每秒执行一次交通灯刷新        {            flag1s = 0;            TrafficLight();        }    }}void ConfigTimer0(u16 ms){    unsigned long tmp; // 临时变量    tmp = 11059200 / 12;          // 定时器计数频率    tmp = (tmp * ms) / 1000;      // 计算所需的计数值    tmp = 65536 - tmp;          // 计算定时器重载值    tmp = tmp + 18;              // 补偿中断响应延时造成的误差    TH0 = TH0RL = (u8)(tmp >> 8); // 定时器重载值拆分为高低字节    TL0 = TL0RL = (u8)tmp;    TMOD &= 0xF0;  // 清零T0的控制位    TMOD |= 0x01;  // 配置T0为模式1    ET0 = TR0 = 1; // 使能T0中断 // 启动T0}void TrafficLight(){#define red 1#define green 2#define yello 3    static u8 color = yello;#define red_smgPos 0#define green_smgPos 4#define yello_smgPos 2    static u8 smgPos = yello_smgPos;    static i8 timer = 2;    static u8 lastLight = red;    u8 i;    for (i = 0; i < 6; i++)    {        LedBuff[i] = 0xFF;    }    timer--;    LedBuff[smgPos] = LedChar[timer % 10];    LedBuff[smgPos + 1] = LedChar[timer / 10];    switch (color)    {    case green:        LedBuff[6] = 0x3F; // 0011-1111        if (timer == 0)        {            lastLight = green;            smgPos = yello_smgPos;            color = yello;            timer = 2;        }        break;    case yello:        LedBuff[6] = 0xE7; // 1110-0111        if (timer == 0)        {            if (lastLight == green)            {                color = red;                smgPos = red_smgPos;                timer = 10;            }            else if (lastLight == red)            {                color = green;                smgPos = green_smgPos;                timer = 20;            }        }        break;    case red:        LedBuff[6] = 0xFC; // 1111-1100        if (timer == 0)        {            lastLight = red;            smgPos = yello_smgPos;            color = yello;            timer = 2;        }        break;    }}void LedScan(){    static u8 i = 0; // 动态扫描索引    P0 = 0xFF;          // 关闭所有段选位，显示消隐    P1 = (P1 & 0xF8) | i; // 位选索引值赋值到P1口低3位    P0 = LedBuff[i];      // 缓冲区中索引位置的数据送到P0口    i++;    i &= 0x07; // 0000-0111}void InterruptTimer0() interrupt 1{    static u16 tmr1s = 0; // 1秒定时器    TH0 = TH0RL; // 重新加载重载值    TL0 = TL0RL;    LedScan(); // LED扫描显示    tmr1s++;   // 1秒定时的处理    if (tmr1s >= 1000)    {        tmr1s = 0;        flag1s = 1; // 设置秒定时标志    }}//跟堂作业 c4炸弹#include <>typedef signed char i8;typedef unsigned char u8;typedef signed int i16;typedef unsigned int u16;typedef signed long i32;typedef unsigned long u32;sbit BUZZ = P1 ^ 6;sbit ADDR3 = P1 ^ 3;sbit ENLED = P1 ^ 4;sbit KEYIN1 = P2 ^ 4;sbit KEYIN2 = P2 ^ 5;sbit KEYIN3 = P2 ^ 6;sbit KEYIN4 = P2 ^ 7;sbit KEYOUT1 = P2 ^ 3;sbit KEYOUT2 = P2 ^ 2;sbit KEYOUT3 = P2 ^ 1;sbit KEYOUT4 = P2 ^ 0;u8 code LedChar[16] =    {    0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8,    0x80, 0x90, 0x88, 0x83, 0xC6, 0xA1, 0x86, 0x8E};u8 LedBuff[8] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};u8 code KeyCodeMap[4][4] =    {    {0x31, 0x32, 0x33, 0x26}, // 数字1,2,3,UP    {0x34, 0x35, 0x36, 0x25}, // 数字4,5,6,LEFT    {0x37, 0x38, 0x39, 0x28}, // 数字7,8,9,DOWN    {0x30, 0x1B, 0x0D, 0x27}, // 数字0,ESC,ENTER,RIGHT};u8 KeySta[4][4] = {{1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}};u32 pdata KeyDownTime[4][4] = {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}};bit enBuzz = 0;bit flag1s = 0;bit flagStart = 0;u8 TH0RL = 0;u8 TL0RL = 0;u16 CountDown = 0;void ConfigTimer0(u16 ms){    u32 tmp;    tmp = 11059200 / 12;    tmp = tmp * ms / 1000;    tmp = 65536 - tmp;    tmp += 18; // 补偿值    TH0 = TH0RL = (u8)(tmp >> 8);    TL0 = TL0RL = (u8)tmp;    TMOD &= 0xF0;    TMOD |= 0x01;    ET0 = TR0 = 1;}void ShowNumber(u32 num){    i8 i;    u8 buf[6];    for (i = 0; i < 6; i++)    {        buf[i] = num % 10;        num /= 10;    }    for (i = 5; i >= 1; i--)    {        if (buf[i] == 0)            LedBuff[i] = 0xFF;        else            break;    }    for (; i >= 0; i--)    {        LedBuff[i] = LedChar[buf[i]];    }}void KeyAction(u8 keycode){    if (keycode == 0x26) // up    {        if (CountDown < 9999)        {            CountDown++;            ShowNumber(CountDown);        }    }    else if (keycode == 0x28) // down    {        if (CountDown > 1)        {            CountDown--;            ShowNumber(CountDown);        }    }    else if (keycode == 0x0D) // enter    {        flagStart = 1;    }    else if (keycode == 0x1B) // esc    {        enBuzz = 0;        LedBuff[6] = 0xFF;        flagStart = 0;        CountDown = 0;        ShowNumber(CountDown);    }}void KeyDriver(void){    u8 i, j;    static u8 backup[4][4] = {{1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}};    static u32 pdata TimeThr[4][4] = {        {1000, 1000, 1000, 1000},        {1000, 1000, 1000, 1000},        {1000, 1000, 1000, 1000},        {1000, 1000, 1000, 1000}};    for (i = 0; i < 4; i++)    {        for (j = 0; j < 4; j++)        {            if (backup[i][j] != KeySta[i][j])            {                if (backup[i][j] == 0)                {                    KeyAction(KeyCodeMap[i][j]);                }                backup[i][j] = KeySta[i][j];            }            if (KeyDownTime[i][j] > 0)            {                if (KeyDownTime[i][j] >= TimeThr[i][j])                {                    KeyAction(KeyCodeMap[i][j]);                    TimeThr[i][j] += 200;                }            }            else            {                TimeThr[i][j] = 1000;            }        }    }}void main(void){    EA = 1;    ENLED = 0;    ADDR3 = 1;    ConfigTimer0(1); // 1ms    ShowNumber(0);    while (1)    {        KeyDriver();        if (flagStart && flag1s)        {            flag1s = 0;            if (CountDown > 0)            {                CountDown--;                ShowNumber(CountDown);                if (CountDown == 0)                {                    enBuzz = 1;                    LedBuff[6] = 0;                }            }        }    }}void LedScan(void){    static u8 i = 0;    P0 = 0xFF;    P1 = (P1 & 0xF8) | i;    P0 = LedBuff[i];    i++;    i &= 0x07; // 0000-0111}void KeyScan(void){    u8 i;    static u8 keyout = 0;    static u8 keybuf[4][4] = {{0xFF, 0xFF, 0xFF, 0xFF}, {0xFF, 0xFF, 0xFF, 0xFF}, {0xFF, 0xFF, 0xFF, 0xFF}, {0xFF, 0xFF, 0xFF, 0xFF}};    keybuf[keyout][0] = (keybuf[keyout][0] << 1) | KEYIN1;    keybuf[keyout][1] = (keybuf[keyout][1] << 1) | KEYIN2;    keybuf[keyout][2] = (keybuf[keyout][2] << 1) | KEYIN3;    keybuf[keyout][3] = (keybuf[keyout][3] << 1) | KEYIN4;    for (i = 0; i < 4; i++)    {        if ((keybuf[keyout][i] & 0x0F) == 0)        {            KeySta[keyout][i] = 0;            KeyDownTime[keyout][i] += 4;        }        else if ((keybuf[keyout][i] & 0x0F) == 0x0F)        {            KeySta[keyout][i] = 1;            KeyDownTime[keyout][i] = 0;        }    }    keyout++;    keyout &= 0x03; // 0000-0011    switch (keyout)    {    case 0:    KEYOUT4 = 1; KEYOUT1 = 0; break;    case 1: KEYOUT1 = 1; KEYOUT2 = 0; break;    case 2: KEYOUT2 = 1; KEYOUT3 = 0; break;    case 3: KEYOUT3 = 1; KEYOUT4 = 0; break;    }}void Timer0_ISR(void) interrupt 1{    static u16 tmr1s = 0;    TH0 = TH0RL;    TL0 = TL0RL;    if (enBuzz)        BUZZ = !BUZZ;    else        BUZZ = 1;    LedScan();    KeyScan();    if (flagStart)    {        tmr1s++;        if (tmr1s >= 1000)        {            tmr1s = 0;            flag1s = 1;        }    }    else    {        tmr1s = 0;    }}