学习《8051U深度入门到32位51大型实战教学视频》打卡
第三集：点亮第一个LED代码：
#include "Ai8051U.h" //调用头文件
void main(void) //主函数
{
P0M0=0; //P0端口(P00-P07)为准双向口
P0M1=0;
P4M0=0; //P4端口为准双向口
P4M1=0;
while(1)
{
P40=0; //P40端口输出0V
P00=0; //P00端口输出0V
P01=0; //P01端口输出0V
}
}
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
第四集：USB不停电下载
代码：
#include "Ai8051U.h" //调用头文件
#include "stc32_stc8_usb.h"//调用头文件
char *USER_DEVICEDESC = NULL;
char *USER_PRODUCTDESC = NULL;
//char *USER_STCISPCMD = "@STCISP#";
void main(void) //主函数
{
P_SW2 |= 0x80; //B7位写1，使能访问XFR
P0M1 = 0x00; P0M0 = 0x00;
P1M1 = 0x00; P1M0 = 0x00;
P2M1 = 0x00; P2M0 = 0x00;
P3M1 = 0x00; P3M0 = 0x00;
P4M1 = 0x00; P4M0 = 0x00;
P5M1 = 0x00; P5M0 = 0x00;
P6M1 = 0x00; P6M0 = 0x00;
P7M1 = 0x00; P7M0 = 0x00;
usb_init();
IE2 |= 0x80;
EA = 1;
while (DeviceState != DEVSTATE_CONFIGURED);
while(1)
{
if (bUsbOutReady)
{
USB_SendData(UsbOutBuffer,OutNumber);
usb_OUT_done();
}
P40 = 0;
P00 = 0;
P02 = 0;
//P01 = 0;
}
}
第五集：C语言基础
代码：
#include "ai8051u.h" //调用头文件
#include "stc32_stc8_usb.h" //调用头文件
#define u8 unsigned char
#define u16 unsigned int
u8 X = 200;//初始状态
u8 Y = 10;//初始状态
char *USER_DEVICEDESC = NULL;
char *USER_PRODUCTDESC = NULL;
char *USER_STCISPCMD = "@STCISP#";
void main(void)
{
P_SW2 |= 0x80; //B7位写1，使能访问XFR
P0M1 = 0x00; P0M0 = 0x00;
P1M1 = 0x00; P1M0 = 0x00;
P2M1 = 0x00; P2M0 = 0x00;
P3M1 = 0x00; P3M0 = 0x00;
P4M1 = 0x00; P4M0 = 0x00;
P5M1 = 0x00; P5M0 = 0x00;
P6M1 = 0x00; P6M0 = 0x00;
P7M1 = 0x00; P7M0 = 0x00;
usb_init(); //USB CDC 接口配置
IE2 |= 0x80; //使能USB中断
EA = 1; //IE |= 0X80;
while (DeviceState != DEVSTATE_CONFIGURED); //等待USB完成配置
while(1)
{
if (bUsbOutReady) //如果接收到了数据
{
//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）
if( X && Y )
{
printf("条件为真");
}
else
{
printf("条件为假");
}
//printf("X / Y =%u \r\n",(u16)(X/Y));
//printf("X %% Y =%u \r\n",(u16)(X%Y));
usb_OUT_done();
}
//P40 = 0; //P40端口输出0V
//P00 = 0; //P00端口输出0V
//P02 = 0; //P02端口输出0V
//P01 = 0; //P01端口输出0V
}
}
第六集： I/O输入输出
代码：
#include "ai8051u.h" //调用头文件
#include "stc32_stc8_usb.h" //调用头文件
#define u8 unsigned char
#define u16 unsigned int
u8 state = 0; //初始状态
char *USER_DEVICEDESC = NULL;
char *USER_PRODUCTDESC = NULL;
char *USER_STCISPCMD = "@STCISP#";
void Delay20ms(void) //@24.000MHz Delay20ms();
{
unsigned long edata i;
_nop_();
_nop_();
i = 119998UL;
while (i) i--;
}
void main(void)
{
WTST = 0; //设置程序指令延时参数，赋值为0可将CPU执行指令的速度设置为最快
EAXFR = 1; //扩展寄存器(XFR)访问使能
CKCON = 0; //提高访问XRAM速度
P0M1 = 0x00; P0M0 = 0x00;
P1M1 = 0x00; P1M0 = 0x00;
P2M1 = 0x00; P2M0 = 0x00;
P3M1 = 0x00; P3M0 = 0x00;
P4M1 = 0x00; P4M0 = 0x00;
P5M1 = 0x00; P5M0 = 0x00;
P6M1 = 0x00; P6M0 = 0x00;
P7M1 = 0x00; P7M0 = 0x00;
usb_init(); //USB CDC 接口配置
IE2 |= 0x80; //使能USB中断
EA = 1; //IE |= 0X80;
P40=0;
while (DeviceState != DEVSTATE_CONFIGURED); //等待USB完成配置
while(1)
{
if (bUsbOutReady) //如果接收到了数据
{
//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）
usb_OUT_done();
}
// //任务1:按下P32按钮灯亮，松开P32按钮灯灭;
// if( P32 == 0 ) //判断按钮P32是否按下
// {
// P00 = 0;
// }
// else
// {
// P00 = 1;
// }
// //任务2:按下P32按钮灯灭，松开P32按钮灯亮;
// if( P32 == 0 ) //判断按钮P32是否按下
// {
// P00 = 1;
// }
// else
// {
// P00 = 0;
// }
//任务3:按一下灯亮，按一下灯灭;
if( P32 == 0 ) //判断按钮P32是否按下
{
Delay20ms(); //延时20ms消抖
if(P32 == 0)
{
state = !state; //变量取反 0 1 0 1 0 1
P00 = state;
printf("state:%d\r\n",(int)state);
while( P32 == 0 ); //等待P32松开
}
}
}
}attach://121681.mp4
第7集：定时器中断
代码：#include "ai8051u.h" //调用头文件
#include "stc32_stc8_usb.h" //调用头文件
#define u8 unsigned char
#define u16 unsigned int
u8 state = 0; //初始状态
u8 Run_State = 0; //运行状态
char *USER_DEVICEDESC = NULL;
char *USER_PRODUCTDESC = NULL;
char *USER_STCISPCMD = "@STCISP#";
void Delay20ms(void) //@24.000MHz Delay20ms();
{
unsigned long edata i;
_nop_();
_nop_();
i = 119998UL;
while (i) i--;
}
//void Timer0_Init(void) //3秒@24.000MHz
//{
// TM0PS = 0X5B; //设置定时器时钟预分频 ( 注意:并非所有系列都有此寄存器,详情请查看数据手册 )
// AUXR &= 0X7F; //定时器时钟12T模式
// TMOD &= 0XF0; //设置定时器模式
// TL0 = 0x3F; //设置定时初始值
// TH0 = 0x01; //设置定时初始值
// TF0 = 0; //清除TF0标志
// TR0 = 1; //定时器0开始计时
// ET0 = 1; //使能定时器0中断
//
// //TM0PS = 91
// //12T /12
// //TH0-TL0 = 319
//}
void Timer0_Init(void) //500微秒@24.000MHz
{
AUXR |= 0x80; //定时器时钟1T模式
TMOD &= 0xF0; //设置定时器模式
TL0 = 0x20; //设置定时初始值
TH0 = 0xD1; //设置定时初始值
TF0 = 0; //清除TF0标志
TR0 = 1; //定时器0开始计时
}
void main(void)
{
int count=1; //按键计数变量
WTST = 0; //设置程序指令延时参数，赋值为0可将CPU执行指令的速度设置为最快
EAXFR = 1; //扩展寄存器(XFR)访问使能
CKCON = 0; //提高访问XRAM速度
P0M1 = 0x00; P0M0 = 0x00;
P1M1 = 0x00; P1M0 = 0x00;
P2M1 = 0x00; P2M0 = 0x00;
P3M1 = 0x00; P3M0 = 0x00;
P4M1 = 0x00; P4M0 = 0x00;
P5M1 = 0x00; P5M0 = 0x00;
P6M1 = 0x00; P6M0 = 0x00;
P7M1 = 0x00; P7M0 = 0x00;
usb_init(); //USB CDC 接口配置
IE2 |= 0x80; //使能USB中断
// Timer0_Init( ); //定时器初始化
EA = 1; //IE |= 0X80;
P40=0;
while (DeviceState != DEVSTATE_CONFIGURED); //等待USB完成配置
while(1)
{
if (bUsbOutReady) //如果接收到了数据
{
//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）
usb_OUT_done();
}
// //任务1;
// if( P32 == 0 ) //判断按钮P32是否按下
// {
// Delay20ms(); //延时20ms消抖
// if(P32 == 0)
// {
// printf("按键按下次数\xfd:%d次\r\n",(int)count);
// count ++;
// while( P32 == 0 ); //等待P32松开
// }
// }
// //任务2:灯按一下点亮三秒后熄灭
// if( P32 == 0 ) //判断按钮P32是否按下
// {
// Delay20ms(); //延时20ms消抖
// if(P32 == 0)
// {
//// printf("按键按下次数\xfd:%d次\r\n",(int)count);
//// count ++;
// P00 = 0;
// Timer0_Init( );
// while( P32 == 0 ); //等待P32松开
// }
// }
//任务3:救护车灯控制器
if( P32 == 0 ) //判断按钮P32是否按下
{
Delay20ms(); //延时20ms消抖
if( P32 == 0 )
{
Run_State = !Run_State; //运行状态取反
if(Run_State == 1) //运行
{
Timer0_Init(); //关闭定时器
}
else
{
TR0 = 0;
P00 = 1;
P01 = 1;
}
// P00 = 0;
// Timer0_Init();
while( P32 == 0 ); //等待P32松开
}
}
}
}
void Timer0_Isr(void) interrupt 1 //3s执行一次
{
state = !state;
P00 = state;
P01 = !state; //定时器0关闭计时
}
第八集：
代码：
#include "config.h"
#include "task.h"
u8 State1 = 0; //LED1初始状态
u8 State2= 0; //LED2初始状态
u8 State3= 0; //LED3初始状态
u8 State = {0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
u8 i;
//State =
u16 Key_Vol = 0;
u8 num = 0;
//u16 Count_300 = 0; //计数300ms变量
//u16 Count_600 = 0; //计数600ms变量
//u16 Count_900 = 0; //计数900ms变量
u16 Count_ms={0,0,0}; //三个计时变量
char *USER_DEVICEDESC = NULL;
char *USER_PRODUCTDESC = NULL;
char *USER_STCISPCMD = "@STCISP#";
void Delay10ms(void) //@24.000MHz
{
unsigned long edata i;
_nop_();
_nop_();
_nop_();
i = 59998UL;
while (i) i--;
}
void main(void)
{
int count=1; //按键计数变量
Sys_init();
usb_init(); //USB CDC 接口配置
IE2 |= 0x80; //使能USB中断
Timer0_Init( ); //定时器初始化
EA = 1; //IE |= 0X80;
P40=0;
while (DeviceState != DEVSTATE_CONFIGURED); //等待USB完成配置
while(1)
{
if (bUsbOutReady) //如果接收到了数据
{
//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）
usb_OUT_done();
}
// if( Count_ms >=500 ) //500ms执行一次
// {
// Count_ms = 0;
// P0 = ~State[ num ]; //0-7
// num ++;
// if( num >7)
// {
// num = 0;
// }
P0 = ~State[ num ]; //0-7
if( P32==0 )
{
Delay10ms();
if(P32 == 0 )
{
while(P32 == 0 );
num ++;
}
}
if( Count_ms >=1000 ) //1000ms执行一次
{
Count_ms = 0;
printf("AI8051U\r\n");
}
if( Count_ms >=10 ) //10ms执行一次
{
Count_ms = 0;
if( P32==0 ) //按键按下
{
Key_Vol ++;
if( Key_Vol == 5 )
{
num ++;
}
}
else
{
Key_Vol = 0;
}
}
}
}
void Timer0_Isr(void) interrupt 1 //1ms执行一次
{
Task_Marks_Handler_Callback(void);
}
第九集：数码管
代码：
#include "io.h"
u8 SEG_NUM[]=
{
0x3F, /*'0', 0*/
0x06, /*'1', 1*/
0x5B, /*'2', 2*/
0x4F, /*'3', 3*/
0x66, /*'4', 4*/
0x6D, /*'5', 5*/
0x7D, /*'6', 6*/
0x07, /*'7', 7*/
0x7F, /*'8', 8*/
0x6F, /*'9', 9*/
0x77, /*'A', 10*/
0x7C, /*'B', 11*/
0x39, /*'C', 12*/
0x5E, /*'D', 13*/
0x79, /*'E', 14*/
0x71, /*'F', 15*/
0x40, /*'-', 16*/
0x00, /*' ', 17*/
0x80, /*'.', 18*/
};
u8 T_NUM =
{
0X01,0X02,0X04,0X08,0X10,0X20,0X40,0X80
};
u8 State1 = 0; //LED1初始状态
u8 State2 = 0; //LED2初始状态
u8 State3 = 0; //LED3初始状态
u16 Key_Vol ; //按键按下持续时间
void LED0_Blink(void)
{
State1 = !State1;
P00 = State1;
}
void LED1_Blink(void)
{
State2 = !State2;
P01 = State2;
}
void LED2_Blink(void)
{
State3 = !State3;
P02 = State3;
}
void KEY_Task(void)
{
// if( P32 == 0 )
// {
// Key_Vol++;
// if( Key_Vol==5 )
// {
// //按键按下的任务
// printf( "按键单击\r\n" );
// }
// }
// else
// {
// Key_Vol = 0;
// }
}
void Init_595(void)
{
HC595_SER = 0;
HC595_RCK = 0;
HC595_SCK = 0;
}
void Send_595( u8 dat )
{
u8 i;
for( i=0;i<8;i++ )
{
dat <<= 1; //DAT = (DAT<<1); //CY
HC595_SER = CY; //先把数据写到引脚上
HC595_SCK = 1; //输出上升沿的时钟信号
HC595_SCK = 0;
}
}
void Display_Seg(u8 HC595_1,u8 HC595_2)
{
Send_595(HC595_1); //数码管段码输出高电平点亮
Send_595(HC595_2); //数码管位码 低电平点亮
HC595_RCK = 1; //数据输出
HC595_RCK = 0;
}
u8 Seg_no = 0;
u8 shi=0;
u8 fen=0;
u8 miao =0;
void Seg_Task(void)
{
u8 num = 0;
if( Seg_no ==0 ) //小时十位
{
num = shi/10;
Display_Seg( SEG_NUM , ~T_NUM); //数码管刷段码和位码
}
else if( Seg_no ==1 ) //小时的个位
{
num = shi%10;
Display_Seg( SEG_NUM , ~T_NUM); //数码管刷段码和位码
}
else if( Seg_no ==2 ) //第一个横杠
{
Display_Seg( SEG_NUM , ~T_NUM); //数码管刷段码和位码
}
else if( Seg_no ==3 ) //分钟的十位
{
num = fen/10;
Display_Seg( SEG_NUM , ~T_NUM); //数码管刷段码和位码
}
else if( Seg_no ==4 )
{
num = fen%10;
Display_Seg( SEG_NUM , ~T_NUM); //数码管刷段码和位码
}
else if( Seg_no ==5 )
{
Display_Seg( SEG_NUM , ~T_NUM); //数码管刷段码和位码
}
else if( Seg_no ==6 )
{
num = miao/10;
Display_Seg( SEG_NUM , ~T_NUM); //数码管刷段码和位码
}
else if( Seg_no ==7 )
{
num = miao%10;
Display_Seg( SEG_NUM , ~T_NUM); //数码管刷段码和位码
}
else
{
}
Seg_no ++;
if( Seg_no>7 )
Seg_no=0;
}
void TIMECOUNT_Task(void)
{
miao ++;
if( miao>59 )
{
miao = 0;
fen++;
if( fen>59 )
{
fen = 0;
shi ++;
if( shi>23 )
shi = 0;
}
}
}
u8 state_now = 0;
void PLED_40(void)
{
u8 cod;
cod = 0x0f; //表示开启P0-P3
cod = 0X01; //P0端口
cod = 0X01; //P1
cod = ~T_NUM; //P2
cod = 0X01; //P3
LED40_SendData( cod,5 );
P2 = ~T_NUM;
state_now++;
if( state_now>7 )
state_now = 0;
// u8 cod;
// cod = 0x0f; //表示开启P0-P3
// cod = ~T_NUM; //P0端口
// cod = 0X01; //P1
// cod = 0X01; //P2
// cod = 0X01; //P3
// LED40_SendData( cod,5 );
//
// P0 = ~T_NUM;
//
// state_now++;
// if( state_now>7 )
// state_now = 0;
}
void SEG_PC( void )
{
u8 cod;
cod = SEG_NUM; //小时的十位数的数码管段码
cod = SEG_NUM;
cod =SEG_NUM; //数码管刷段码和位码
cod = SEG_NUM; //分钟
cod = SEG_NUM;
cod =SEG_NUM; //数码管刷段码和位码
cod = SEG_NUM; //分钟
cod = SEG_NUM;
SEG7_ShowCode(cod);
}
第十集：虚拟LED和数码管
代码：
#include "io.h"
u8 State1 = 0; //LED1初始状态
u8 State2 = 0; //LED2初始状态
u8 State3 = 0; //LED3初始状态
u16 Key_Vol = 0; //按键按下持续时间
u16 Key_Vol_2 =0;
void LED0_Blink(void)
{
State1 = !State1;
P00 = State1;
}
void LED1_Blink(void)
{
State2 = !State2;
P01 = State2;
}
void LED2_Blink(void)
{
State3 = !State3;
P02 = State3;
}
u16 KEY1_COUNT = 0; //P32按钮计数
u16 KEY2_COUNT = 0; //P33按钮计数
void KEY_Task(void)
{
// ------------P32按钮计数------------
if( P32 == 0 )
{
Key_Vol++;
if( Key_Vol==5 )
{
KEY1_COUNT++;
}
}
else
{
Key_Vol = 0;
}
// ------------P33按钮计数------------
if( P33 == 0 )
{
Key_Vol_2++;
if( Key_Vol_2==5 )
{
KEY2_COUNT++;
}
}
else
{
Key_Vol_2 = 0;
}
}
u8 P2_STATE = 0X01;
u8 P10_STATE = 0;
// 任务1：P2口流水灯，P10闪烁
void TASK_1( void )
{
// ----------------------- p2端口流水灯 -----------------------
LED40_SetPort(2,~P2_STATE); //点亮P20端口
P2_STATE = (P2_STATE<<1); //1000 0000 -> 1 0000 0000
if( P2_STATE == 0 )
P2_STATE = 1;
// ----------------------- p10端口闪烁 -----------------------
if( P10_STATE == 0 )
LED40_SetBit(1,0);
else
LED40_ClrBit(1,0);
P10_STATE = !P10_STATE;
}
u32 KEY_Count = 0;
// 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
void TASK_2( void )
{
KEY_Count = KEY1_COUNT *10000 + KEY2_COUNT;
SEG7_ShowLong( KEY_Count ,10);
}
u32 REC_NUM = 0;
// 任务3：按下数字按键在数码管显示对应的按键数字！
void TASK_3( void )
{
SEG7_ShowLong( REC_NUM ,10);
}
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