学习《Ai8051U教学视频》心得打卡 - 第2页 - 学习打卡区 | 感悟 - 国芯人工智能技术交流网站

skyalong 发表于 2025-6-5 09:33:29

第十集虚拟键盘LED和数码管
虚拟显示——LED
任务1:P2口流水灯,P10闪烁
任务1代码
void Task1(void)
{
u8 cod[8] = {0};

cod[0] = 0x3f;//指定端口 xx11 1111 xxP5P4 P3P2P1P0
cod[1] = 0xff;//P0 0000 0001
cod[2] = (led_num % 2)|0xfe;//P1 0000 0010
cod[3] = ~SEG_W;//P2 0000 0100
cod[4] = 0xff;//P3 0101 0101
cod[5] = 0xff;//P4 1010 1010
cod[6] = 0xff;//P5 0101 0101
LED40_SendData(cod, 7);
led_num ++;
if(led_num > 7)led_num = 0;
}

虚拟显示——数码管

任务2:左边数码管显示P32按下次数，右边数码管显示P33按下次数
任务2代码（做了修改，第4位加点显示做分割，默认显示0000.0000）
u8 key_num1 = 0;
u8 K32num = 0,K33num = 0;
void Task2(void)
{
u8 cod[8];
cod[0] = SEG_D/1000%10];
cod[1] = SEG_D/100%10];
cod[2] = SEG_D/10%10];
cod[3] = (SEG_D%10])|0x80;
cod[4] = SEG_D/1000%10];
cod[5] = SEG_D/100%10];
cod[6] = SEG_D/10%10];
cod[7] = SEG_D%10];
SEG7_ShowCode(cod);
if(P32 == 0)
{
   key_num++;
   if(key_num == 5)
   {
         K32num++;
   }
}else{key_num = 0;}
if(P33 == 0)
{
   key_num1++;
   if(key_num1 == 5)
   {
         K33num++;
   }
}else{key_num1 = 0;}
}

虚拟键盘

任务3:按下数字按键在数码管显示对
应的按键数字!
例:按下按键0数码管显示0;
任务3代码
void main(void)
{
Sys_init();
usb_init();                                  //USB CDC 接口配置
set_usb_OUT_callback(usb_callback);          //设置中断回调回调函数

Init_595();
Timer0_Init();
EA = 1;
while(1)
{
   Task_Pro_Handler_Callback();
   REC_NUM = UsbOutBuffer[5]-48;
}
}
u16 REC_NUM = 0;
void Task3(void)
{
SEG7_ShowLong(REC_NUM,10);
}

拓展代码
u8 cod = {16,16,16,16,16,16,16,16};
u8 cod1 ;
void Task3(void)
{
   if(seg_num == 0)
   {
            cod = 0x40;
            cod = 0x40;
            cod = 0x40;
            cod = 0x40;
            cod = 0x40;
            cod = 0x40;
            cod = 0x40;
            cod = 0x40;
   }
   cod = SEG_D;
   cod1 = REC_NUM;

   SEG7_ShowCode(cod);
   if(seg_num >= 8)
   {
            if(cod1 == 1&&cod1 == 2&&cod1 == 3&&cod1 == 4&&cod1 == 5&&cod1 == 6&&cod1 == 7&&cod1 == 8)
            {
                     cod = 0x40;
                     cod = 0x40;
                     cod = 0x5c;//o
                     cod = 0x73;//p
                     cod = 0x79;//e
                     cod = 0x54;//n
                     cod = 0x40;
                     cod = 0x40;

                     SEG7_ShowCode(cod);
            }else seg_num = 0;//8位结束回0
   }

}
工程代码

拓展代码工程

--哪怕梦想让我们拼的遍体鳞伤，这一次我们也要勇往直前

skyalong 发表于 2025-6-10 23:25:27

第十一集矩阵按键
摘要1.矩阵按键的原理2.矩阵按键的程序实现原理任务1代码
u8 key_board_num = 0xff;
void key_board(void)
{
COL1 = 0;
COL2 = 0;
COL3 = 0;
COL4 = 0;
ROW1 = 1;
ROW2 = 1;

if(ROW1 == 0||ROW2 == 0)
{
if(ROW1 == 0&&ROW2 == 0){}
else if((ROW1 == 1&&ROW2 ==0)||(ROW1 == 0&&ROW2 ==1))
{
   if(ROW1 == 0){key_board_num = 0;}
   else if(ROW2 ==0){key_board_num = 4;}

   COL1 = 1;
   COL2 = 1;
   COL3 = 1;
   COL4 = 1;
   ROW1 = 0;
   ROW2 = 0;

   if(COL1 == 0){key_board_num = key_board_num + 1 -1;seg_num++;}
   if(COL2 == 0){key_board_num = key_board_num + 1;seg_num++;}
   if(COL3 == 0){key_board_num = key_board_num + 2;seg_num++;}
   if(COL4 == 0){key_board_num = key_board_num + 3;seg_num++;}
   printf("%d按键按下\r\n",key_board_num);
}
COL1 = 0;
COL2 = 0;
COL3 = 0;
COL4 = 0;
ROW1 = 1;
ROW2 = 1;
}
else
{
key_board_num = 0xff;
}
}
void key_Seg(void)
{
seg_num++;
if(seg_num >= 8) seg_num = 0;//8位结束回0
Display_Seg(~SEG_W[0],SEG_D);
}

程序实现代码
void key_board(void)
{
COL1 = 0;
COL2 = 0;
COL3 = 0;
COL4 = 0;
ROW1 = 1;
ROW2 = 1;

if(ROW1 == 0||ROW2 == 0)
{
if((ROW1 == 0)&&(ROW2 == 0)){}
else if(((ROW1 == 1)&&(ROW2 ==0))||((ROW1 == 0)&&(ROW2 ==1)))
{
   if(ROW1 == 0){key_board_num = 0;}
   else if(ROW2 ==0){key_board_num = 4;}

   COL1 = 1;
   COL2 = 1;
   COL3 = 1;
   COL4 = 1;
   ROW1 = 0;
   ROW2 = 0;

   if(COL1 == 0){key_board_num = key_board_num + 1 -1;}
   if(COL2 == 0){key_board_num = key_board_num + 1;}
   if(COL3 == 0){key_board_num = key_board_num + 2;}
   if(COL4 == 0){key_board_num = key_board_num + 3;}
   //printf("%d按键按下\r\n",key_board_num);
}
COL1 = 0;
COL2 = 0;
COL3 = 0;
COL4 = 0;
ROW1 = 1;
ROW2 = 1;
}
else
{
key_board_num = 0xff;
}
}
void key_Seg(void)
{
Display_Seg(~SEG_W,SEG_D[possward]);
led_num++;
if(led_num >= 8) led_num = 0;//8位结束回0
}
void write_pow(void)
{
if(key_board_num < 0xff)
{
key_num ++;
if(key_num == 5)
{
   if(seg_num == 0)
   {
   possward[0] = 16;
   possward[1] = 16;
   possward[2] = 16;//o
   possward[3] = 16;//p
   possward[4] = 16;//e
   possward[5] = 16;//n
   possward[6] = 16;
   possward[7] = 16;
   }
   possward = key_board_num;
   seg_num ++;
   if(seg_num == 8)
   {
   if(possward[0] == 1&&possward[1] == 2&&possward[2] == 3&&possward[3] == 4&&possward[4] == 5&&possward[5] == 6&&possward[6] == 7&&possward[7] == 0)
   {
      possward[0] = 17;
      possward[1] = 1;
      possward[2] = 17;//o
      possward[3] = 1;//p
      possward[4] = 17;//e
      possward[5] = 1;//n
      possward[6] = 17;
      possward[7] = 1;
   }
   else
   {
      possward[0] = 16;
      possward[1] = 16;
      possward[2] = 16;//o
      possward[3] = 16;//p
      possward[4] = 16;//e
      possward[5] = 16;//n
      possward[6] = 16;
      possward[7] = 16;
   }
   seg_num = 0;
   }
}
}
else
{
key_num = 0;
}
}

拓展代码包含洗衣机拓展

--哪怕梦想让我们拼的遍体鳞伤，这一次我们也要勇往直前

skyalong 发表于 2025-6-13 14:50:26

第十二集复位系统
摘要1硬件复位2.软件复位
硬件复位          看门狗复位代码，按下按键跳过喂狗超时将复位WDT_CONTR = 0X24;//开启看门狗
while(1)
{
   Task_Pro_Handler_Callback();
   //REC_NUM = UsbOutBuffer-48;//任务3
   if(P33 != 0)
         WDT_CONTR = 0X34;//喂狗
}
软件复位代码，P32软件复位，P32软件复位并进入下载模式

void key(void)
{
if(P32 == 0)
{
   key_num++;
   if(key_num == 5)
   {
         //printf("按键按下\r\n");
         USB_Reset_U();
         IAP_CONTR = 0X20;//软件复位，不进入下载模式
   }
}
else
{
   key_num = 0;
}
if(P33 == 0)
{
   key_num1++;
   if(key_num1 == 5)
   {
         //printf("按键按下\r\n");
         USB_Reset_U();
         IAP_CONTR = 0X60;//软件复位，进入下载模式
   }
}
else
{
   key_num1 = 0;
}
}
课后小练
拓展代码：



--哪怕梦想让我们拼的遍体鳞伤，这一次我们也要勇往直前

skyalong 发表于 2025-6-18 15:56:41

第十三集外部中断
摘要1.中断系统介绍2.外部中断介绍3.外部中断用法
中断系统介绍外部中断    硬件复位任务1：编写外部中断1的程序任务代码：
void Delay3000ms(void)//@24.000MHz
{
unsigned long edata i;

_nop_();
_nop_();
i = 17999998UL;
while (i) i--;
}
void INT1_Init(void)
{
IT1 = 1;          //下降沿中断
EX1 = 1;          //外部中断1允许
EA = 1;          //打开总中断
}
void INT_ISR(void) interrupt 2
{
P21 = !P21;
}
void main(void)
{
Sys_init();
usb_init();                                  //USB CDC 接口配置
set_usb_OUT_callback(usb_callback);          //设置中断回调回调函数

Init_595();
INT1_Init();
Timer0_Init();
EA = 1;
//Task4();

//WDT_CONTR = 0X24;//开启看门狗

while(1)
{
   //Task_Pro_Handler_Callback();
   //REC_NUM = UsbOutBuffer-48;//任务3
   //if(P33 != 0)
   //WDT_CONTR = 0X35;//喂狗超时时间1秒
   P20 = !P20;
   Delay3000ms();
}
}
拓展拓展代码：
void INT1_Init(void)
{
IT1 = 1;          //下降沿中断
EX1 = 1;          //外部中断1允许
EA = 1;          //打开总中断
}
void INT_ISR(void) interrupt 2
{
P00 = 0;//关灯光机停止工作模拟保护
}
void key_start(void)
{
COL1 = 0;
COL2 = 0;
COL3 = 0;
COL4 = 0;
ROW1 = 1;
ROW2 = 1;

if(ROW1 == 0||ROW2 == 0)
{
   if((ROW1 == 0)&&(ROW2 == 0)){}
   else if(((ROW1 == 1)&&(ROW2 ==0))||((ROW1 == 0)&&(ROW2 ==1)))
   {
         if(ROW1 == 0){key_board_num = 0;}
         else if(ROW2 ==0){key_board_num = 4;}

         COL1 = 1;
         COL2 = 1;
         COL3 = 1;
         COL4 = 1;
         ROW1 = 0;
         ROW2 = 0;

         if(COL1 == 0){key_board_num = key_board_num + 1 -1;}
         if(COL2 == 0){key_board_num = key_board_num + 1;}
         if(COL3 == 0){key_board_num = key_board_num + 2;}
         if(COL4 == 0){key_board_num = key_board_num + 3;}
         //printf("%d按键按下\r\n",key_board_num);
   }
   COL1 = 0;
   COL2 = 0;
   COL3 = 0;
   COL4 = 0;
   ROW1 = 1;
   ROW2 = 1;
}
else
{
   key_board_num = 0xff;
}
}
void main(void)
{
Sys_init();
usb_init();                                  //USB CDC 接口配置
set_usb_OUT_callback(usb_callback);          //设置中断回调回调函数

Init_595();
INT1_Init();

Timer0_Init();
EA = 1;
//Task4();

//WDT_CONTR = 0X24;//开启看门狗

P0=0x00;
while(1)
{
   //Task_Pro_Handler_Callback();
   //REC_NUM = UsbOutBuffer-48;//任务3
   //if(P33 != 0)
   //WDT_CONTR = 0X35;//喂狗超时时间1秒
   key_start();
   if(key_board_num == 1)
   {
         P00 = 1;
   }
   //P20 = !P20;
   //Delay3000ms();
}
}

--哪怕梦想让我们拼的遍体鳞伤，这一次我们也要勇往直前

skyalong 发表于 2025-6-24 15:54:53

第十四集 IO中断摘要1.IO中断介绍2.IO中断用法3.中断优先级的设置
IO中断介绍IO中断用法          任务1：编写IO中断的程序
代码：触发中断P20状态取反void P3_IO_Init(void)
{
P3IM0 = 0X00; //IO中断模式设置为了下降沿
P3IM1 = 0X00;

P3INTE= 0x04; //打开中断 7654 3210 8421 8421
}
void main(void)
{
Sys_init();
usb_init();                                  //USB CDC 接口配置
set_usb_OUT_callback(usb_callback);          //设置中断回调回调函数
Timer0_Init();
P3_IO_Init();
EA = 1;

P20 = 1;
while(1)
{
P21 = !P21;
Delay3000ms();
}
}
void P3_IO_ISR(void)interrupt 40
{
u8 intf;
intf = P3INTF;
if( intf )    //判断有没有IO触发了中断
{
P3INTF = 0;
if( intf & 0x04 )//判断是否是P32按钮按下
{
   P20 = !P20;
}
}
}
中断优先级设置

任务2：编写P4端口的IO中断打断 P3低电平中断的的程序（注意优先级）代码：（将P4改为了P1，P1默认优先级比P3高，P1可以打断P3，P3不能打断P1；修改优先级后给予P3最高优先级后，P3可以打断P1）
void P3_IO_Init(void)
{
P3IM0 = 0X00; //IO中断模式设置为了下降沿
P3IM1 = 0Xff;

P3INTE= 0x04; //打开中断 P32 7654 3210 8421 8421

PINIPH|= 0x08;//写入最高优先级
PINIPL|= 0x08;
}
void P1_IO_Init(void)
{
P1IM0 = 0X00; //IO中断模式设置为了下降沿
P1IM1 = 0Xff;

P1INTE= 0x04; //打开中断 P12 7654 3210 8421 8421
}
void main(void)
{
Sys_init();
usb_init();                                  //USB CDC 接口配置
set_usb_OUT_callback(usb_callback);          //设置中断回调回调函数
Init_595();
Timer0_Init();
P3_IO_Init();
P1_IO_Init();
EA = 1;

P20 = 1;
P22 = 1;
while(1)
{
//Task_Pro_Handler_Callback();    //执行功能函数
Display_Seg(0xfe,0x3f);
}
}
void P3_IO_ISR(void)interrupt 40
{
u8 intf;
intf = P3INTF;
if( intf )    //判断有没有IO触发了中断
{
P3INTF = 0;
if( intf & 0x04 )//判断是否是P32按钮按下
{
   Display_Seg(0xfe,0x5b);
}
}
}
void P1_IO_ISR(void)interrupt 38
{
u8 intf;
intf = P1INTF;
if( intf )    //判断有没有IO触发了中断
{
P1INTF = 0;
if( intf & 0x04 )//判断是否是P32按钮按下
{
   Display_Seg(0xfe,0x06);
}
}
}
课后练习

练习代码：void P1_IO_Init(void)
{
P1IM0 = 0X00; //IO中断模式设置为了下降沿
P1IM1 = 0Xff;

P1INTE= 0x07; //打开中断 P12 7654 3210 8421 8421
}
void main(void)
{
Sys_init();
usb_init();                                  //USB CDC 接口配置
set_usb_OUT_callback(usb_callback);          //设置中断回调回调函数
Init_595();
Timer0_Init();
//P3_IO_Init();
P1_IO_Init();
EA = 1;

P20 = 1;
P22 = 1;
while(1)
{
//Task_Pro_Handler_Callback();    //执行功能函数
Display_Seg(0xfe,0x3f);
}
}
void P1_IO_ISR(void)interrupt 38
{
u8 intf;
intf = P1INTF;
if( intf )    //判断有没有IO触发了中断
{
//P1INTF = 0;
if( intf & 0x04 )//判断是否是P12按钮按下
{
   Display_Seg(0xfe,0x4f);
   while(1);
}
if( intf & 0x02 )//判断是否是P11按钮按下
{
   Display_Seg(0xfe,0x5b);
   while(1);
}
if( intf & 0x01 )//判断是否是P10按钮按下
{
   Display_Seg(0xfe,0x06);
   while(1);
}
}
}

--哪怕梦想让我们拼的遍体鳞伤，这一次我们也要勇往直前

skyalong 发表于 2025-7-15 16:18:13

第十五集定时器做计数器摘要1.计数器的作用2.定时器做为计数器的用法3.定时器1测量INT1引脚低电平脉冲宽度
作用用法任务1：编写定时器1计数的的程序（为了方便计数，10个脉冲中断一次）代码main.c#include "config.h"
#include "io.h"
#include "task.h"
#include "tim.h"
void usb_callback();

void main(void)
{
Sys_init();
usb_init();                                  //USB CDC 接口配置
set_usb_OUT_callback(usb_callback);          //设置中断回调回调函数

Timer0_Init();
TIM1_Count_Init();

EA = 1;

while(1)
{
   Task_Pro_Handler_Callback();             //执行功能函数
}
}
void Timer0_Isr(void) interrupt 1
{
Task_Marks_Handler_Callback();
}
void usb_callback()
{
USB_SendData(UsbOutBuffer,OutNumber);       //发送数据缓冲区，长度（接收数据原样返回, 用于测试）
}
time.c#include "tim.h"

u32 Count_T1 = 0;

void TIM1_Count_Init(void)
{
T1_CT = 1;
T1_M1 = 0;
T1_M0 = 0;
T1_GATE = 0;

TH1 = (65536 - count_num) >> 8;
TL1 = (65536 - count_num);

P3PU |= 0x20;

ET1 = 1;
TR1 = 1;
}
void Timer1_Isr(void) interrupt 3
{
Count_T1 ++;
}
void T1_Task(void)
{
u32 count_th_tl = 0;
count_th_tl = (((u16)TH1 << 8) + ((u16)TL1));
count_th_tl -= 65526;
SEG7_ShowLong(Count_T1 * count_num + count_th_tl,10);
}

定时器1测量INT1引脚低电平脉冲宽度任务2：编写INT1测量低电平时间（由按键模拟信号，100us的计数周期计数！）代码：
#include "tim.h"

u32 Count_T1 = 0;

//void TIM1_Count_Init(void)
//{
//T1_CT = 1;
//T1_M1 = 0;
//T1_M0 = 0;
//T1_GATE = 0;
//
//TH1 = (65536 - count_num) >> 8;
//TL1 = (65536 - count_num);
//
//P3PU |= 0x20;

//ET1 = 1;
//TR1 = 1;
//}
//void Timer1_Isr(void) interrupt 3
//{
//Count_T1 ++;
//}
void T1_Task(void)
{
//u32 count_th_tl = 0;
//count_th_tl = (((u16)TH1 << 8) + ((u16)TL1));
//count_th_tl -= 65526;
//SEG7_ShowLong(Count_T1 * count_num + count_th_tl,10);
SEG7_ShowString("%07.01f",((float)Count_T1)/10);
}
void Timer1_Isr(void) interrupt 3
{
static u32 count_p33 = 0;

if( P33 == 0 )
{
   count_p33 ++ ;
}
else
{
   if( count_p33>0 )
   {
         Count_T1 = count_p33;
   }
   count_p33 =0;
}
}
void Timer1_Init(void)    //100微秒@24.000MHz
{
AUXR &= 0xBF;       //定时器时钟12T模式
TMOD &= 0x0F;       //设置定时器模式
TL1 = 0x38;          //设置定时初始值
TH1 = 0xFF;          //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;             //使能定时器1中断
}

课后练习练习代码：

--哪怕梦想让我们拼的遍体鳞伤，这一次我们也要勇往直前

32位8051-AI 发表于 2025-7-15 16:44:08

推荐优先看的 printf_usb("Hello World !\r\n")及usb不停电下载, 演示视频链接
https://v.stcai.com/sv/1c5eec2-197fcd9b766/1c5eec2-197fcd9b766.mp4
https://v.stcai.com/sv/1fce8086-197cf2b9dd4/1fce8086-197cf2b9dd4.mp4

页: 1 [2]

国芯人工智能技术交流网站's Archiver