第十二集：系统复位
按下P33数码管显示复位，下载软件没进入下载模式
voidKey_Task(void)
{
if( P33==0 )
{
Key_Vol++;
if(Key_Vol == 5)
{
//按键按下的任务
// printf("按键单击\r\n");
USB_Reset_U();
IAP_CONTR=0X20;
}
}
else
{
Key_Vol = 0;
}
}
第十三集：外部中断
手敲代码测试通过
#include "config.h"
#include "task.h"
#include "io.h"
char *USER_DEVICEDESC = NULL;
char *USER_PRODUCTDESC = NULL;
char *USER_STCISPCMD = "@STCISP#";
void Delay3000ms(void) //@24.000MHz
{
unsigned long edata i;
_nop_();
_nop_();
i = 17999998UL;
while (i) i--;
}
void main(void)
{
Sys_int(); //系统初始化
usb_init();
IE2 |= 0x80;
Timer0_Init (); //定时器初始化
Init_595();
INT1_Init();
EA = 1;
P40 = 0;
while (DeviceState != DEVSTATE_CONFIGURED);
// WDT_CONTR = 0X24;
while(1)
{
if (bUsbOutReady)
{
//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();
}
// Task_Pro_Handler_Callback(); //执行功能函数
// if(P33!=0)
// WDT_CONTR = 0X34;
P00=!P00;
Delay3000ms();
}
}
void Timer0_Isr(void) interrupt 1 //3秒执行一次
{
Task_Marks_Handler_Callback();
}
第十四集：IO口中断
任务一：编写IO口中断程序
#include "io.h"
u8 State1=0;
u8 State2=0;
u8 State3=0;
u16 Key_Vol=0;
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
};
void LED0_Blink(void)
{
State1=!State1;
P00=State1;
}
void LED1_Blink(void)
{
State2=!State2;
P01=State2;
}
void LED2_Blink(void)
{
State3=!State3;
P02=State3;
}
voidKey_Task(void)
{
if( P33==0 )
{
Key_Vol++;
if(Key_Vol == 5)
{
//按键按下的任务
// printf("按键单击\r\n");
USB_Reset_U();
IAP_CONTR=0X20;
}
}
else
{
Key_Vol = 0;
}
}
/*#define ROW1 P06
#define ROW2 P07
#define COL1 P00
#define COL2 P01
#define COL3 P02
#define COL4 P03
*/
u8 key_num = 0xff;
//任务1：数码管显示当前的按键号
void Task_1(void)
{
COL1 = 0;
COL2 = 0;
COL3 = 0;
COL4 = 0;
ROW1 = 1;
ROW2 = 1;
if((ROW1 == 0)||(ROW2== 0))//或
{
if((ROW1 == 0)&&(ROW2== 0))//与
{
}
else if(((ROW1 == 1)&&(ROW2== 0))||((ROW1 == 0)&&(ROW2== 1)))
{
if (ROW1 ==0)
key_num = 0;
else if (ROW2 ==0)
key_num = 4;
COL1 = 1;
COL2 = 1;
COL3 = 1;
COL4 = 1;
ROW1 = 0;
ROW2 = 0;
if(COL1 ==0)
{
// key_num = key_num;
}
else if(COL2 ==0)
{
key_num = key_num + 1;
}
else if(COL3 ==0)
{
key_num = key_num + 2;
}
else if(COL4 == 0)
{
key_num = key_num + 3;
}
}
COL1 = 0;
COL2 = 0;
COL3 = 0;
COL4 = 0;
ROW1 = 1;
ROW2 = 1;
}
else
{
key_num = 0xff ;
}
}
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);
Send_595(HC595_2);
HC595_RCK= 1; //数据输出
HC595_RCK= 0;
}
//void SEG_Task(void)
//{
// if(key_num==255)
// Display_seg(SEG_NUM,~T_NUM);
// else
// Display_seg(SEG_NUM,~T_NUM);
//}
u8 Seg_no =0;
u8 password={16,16,16,16,16,16,16,16};
void SEG_Task(void)
{
u8 num = 0;
if(Seg_no == 0)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 1)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 2)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 3)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 4)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 5)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 6)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 7)
{
Display_seg(SEG_NUM],~T_NUM);
}
else
{
}
Seg_no ++;
if(Seg_no>7)
Seg_no = 0;
}
u8 Key_Vol3=0;
u8 Key_no=0;
void PW_write_Task(void)
{
if( key_num<0xff)
{
Key_Vol3++;
if(Key_Vol3 == 5)
{
if(Key_no==0)
{
password=16;
password=16;
password=16;
password=16;
password=16;
password=16;
password=16;
password=16;
}
password=key_num;
Key_no++;
// password=17;
if(Key_no==8)
{
if((password==1)&&(password==2)&&(password==3)&&(password==4)&&(password==5)&&(password==6)&&(password==7)&&(password==0))
{
password=17;
password=17;
password=17;
password=17;
password=17;
password=17;
password=17;
password=1;
}
else
{
password=16;
password=16;
password=16;
password=16;
password=16;
password=16;
password=16;
password=16;
}
Key_no=0;
}
}
}
else
{
Key_Vol3 = 0;
}
}
//void INT1_Init(void)
//{
// IT1=1;
// EX1=1;
// EA=1;
//}
//void INT_ISR(void) interrupt 2
//{
// P01 = !P01;
//}
void P3_IO_Init(void)
{
P3IM0=0x00;
P3IM1=0x00;
P3INTE=0x08;
}
void P3_IO_ISR(void) interrupt 40
{
u8 intf;
intf=P3INTF;
if(intf)
{
P3INTF=0;
if(intf & 0x08)
{
P01 = !P01;
}
}
}
第十四集：IO口中断
任务一：编写P4端口的IO中断P3低电平中断的程序
#include "io.h"
u8 State1=0;
u8 State2=0;
u8 State3=0;
u16 Key_Vol=0;
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
};
void LED0_Blink(void)
{
State1=!State1;
P00=State1;
}
void LED1_Blink(void)
{
State2=!State2;
P01=State2;
}
void LED2_Blink(void)
{
State3=!State3;
P02=State3;
}
voidKey_Task(void)
{
if( P33==0 )
{
Key_Vol++;
if(Key_Vol == 5)
{
//按键按下的任务
// printf("按键单击\r\n");
USB_Reset_U();
IAP_CONTR=0X20;
}
}
else
{
Key_Vol = 0;
}
}
/*#define ROW1 P06
#define ROW2 P07
#define COL1 P00
#define COL2 P01
#define COL3 P02
#define COL4 P03
*/
u8 key_num = 0xff;
//任务1：数码管显示当前的按键号
void Task_1(void)
{
COL1 = 0;
COL2 = 0;
COL3 = 0;
COL4 = 0;
ROW1 = 1;
ROW2 = 1;
if((ROW1 == 0)||(ROW2== 0))//或
{
if((ROW1 == 0)&&(ROW2== 0))//与
{
}
else if(((ROW1 == 1)&&(ROW2== 0))||((ROW1 == 0)&&(ROW2== 1)))
{
if (ROW1 ==0)
key_num = 0;
else if (ROW2 ==0)
key_num = 4;
COL1 = 1;
COL2 = 1;
COL3 = 1;
COL4 = 1;
ROW1 = 0;
ROW2 = 0;
if(COL1 ==0)
{
// key_num = key_num;
}
else if(COL2 ==0)
{
key_num = key_num + 1;
}
else if(COL3 ==0)
{
key_num = key_num + 2;
}
else if(COL4 == 0)
{
key_num = key_num + 3;
}
}
COL1 = 0;
COL2 = 0;
COL3 = 0;
COL4 = 0;
ROW1 = 1;
ROW2 = 1;
}
else
{
key_num = 0xff ;
}
}
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);
Send_595(HC595_2);
HC595_RCK= 1; //数据输出
HC595_RCK= 0;
}
//void SEG_Task(void)
//{
// if(key_num==255)
// Display_seg(SEG_NUM,~T_NUM);
// else
// Display_seg(SEG_NUM,~T_NUM);
//}
u8 Seg_no =0;
u8 password={17,17,17,17,17,17,17,17};
void SEG_Task(void)
{
u8 num = 0;
if(Seg_no == 0)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 1)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 2)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 3)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 4)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 5)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 6)
{
Display_seg(SEG_NUM],~T_NUM);
}
else if(Seg_no == 7)
{
Display_seg(SEG_NUM],~T_NUM);
}
else
{
}
Seg_no ++;
if(Seg_no>7)
Seg_no = 0;
}
u8 Key_Vol3=0;
u8 Key_no=0;
void PW_write_Task(void)
{
if( key_num<0xff)
{
Key_Vol3++;
if(Key_Vol3 == 5)
{
if(Key_no==0)
{
password=16;
password=16;
password=16;
password=16;
password=16;
password=16;
password=16;
password=16;
}
password=key_num;
Key_no++;
// password=17;
if(Key_no==8)
{
if((password==1)&&(password==2)&&(password==3)&&(password==4)&&(password==5)&&(password==6)&&(password==7)&&(password==0))
{
password=17;
password=17;
password=17;
password=17;
password=17;
password=17;
password=17;
password=1;
}
else
{
password=16;
password=16;
password=16;
password=16;
password=16;
password=16;
password=16;
password=16;
}
Key_no=0;
}
}
}
else
{
Key_Vol3 = 0;
}
}
//void INT1_Init(void)
//{
// IT1=1;
// EX1=1;
// EA=1;
//}
//void INT_ISR(void) interrupt 2
//{
// P01 = !P01;
//}
void P3_IO_Init(void)
{
P3IM0=0x00;
P3IM1=0xff;
P3INTE=0x08;
}
void P3_IO_ISR(void) interrupt 40
{
u8 intf;
intf=P3INTF;
if(intf)
{
P3INTF=0;
if(intf & 0x08)
{
password=1;
// P01 = !P01;
}
}
}
void P4_IO_Init(void)
{
P4IM0=0x00;
P4IM1=0xff;
P4INTE=0x80;
PINIPH = (1<<4);
PINIPL = (1<<4);
}
void P4_IO_ISR(void) interrupt 41
{
u8 intf;
intf=P4INTF;
if(intf)
{
P4INTF=0;
if(intf & 0x80)
{
password=2;
}
}
}
第十五集：定时器做计数器
任务1：编写定时器1计数的程序
#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;
TR1 = 1;
ET1 = 1;
}
void Timer1_Isr(void) interrupt 3 //3秒执行一次
{
Count_T1++;
}
void T1_RunTask(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);
}
任务2：编写INT1测量低电平时间
#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;
//
// TR1 = 1;
// ET1 = 1;
//}
//void Timer1_Isr(void) interrupt 3 //3秒执行一次
//{
//Count_T1++;
//}
//void T1_RunTask(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);
//}
void Timer1_Isr(void) interrupt 3
{
static u32 count_p33 = 0;
if( P33 == 0 ) //按键按下开始计数
{
count_p33 ++ ;
}
else
{
if( count_p33>0 ) //表示之前按下了这个按键
{
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
}
void T1_RunTask(void)
{
//SEG7_ShowLong(Count_T1,10); //显示整数
SEG7_ShowString("%07.01f",((float)Count_T1)/10);
}
第十六集 串口的简单应用手敲代码 通过
#include "usart.h"
#include "io.h"
u8 Rec_Dat;
u8 Rec_Num=0;
bit B_TX2_Busy=0;
void Uart2_Isr(void) interrupt 8
{
if (S2CON & 0x02) //检测串口2发送中断
{
S2CON &= ~0x02; //清除串口2发送中断请求位
B_TX2_Busy=0;
}
if (S2CON & 0x01) //检测串口2接收中断
{
S2CON &= ~0x01; //清除串口2接收中断请求位
Rec_Dat=S2BUF;
}
}
void Uart2_Init(void) //9600bps@24.000MHz
{
P_SW2 |= 0x01; //UART2/USART2: RxD2(P4.6), TxD2(P4.7)
S2CON = 0x50; //8位数据,可变波特率
AUXR |= 0x04; //定时器时钟1T模式
T2L = 0x8F; //设置定时初始值
T2H = 0xFD; //设置定时初始值
AUXR |= 0x10; //定时器2开始计时
IE2 |= 0x01; //使能串口2中断
Rec_Num=0;
B_TX2_Busy=0;
}
void Uart2_SendStr(u8 *puts) //串口数据发送函数
{
for(; *puts !=0;puts++) //遇到停止符0结束
{
S2BUF = *puts;
B_TX2_Busy=1;
while(B_TX2_Busy);
}
}
void Usart2_RunTask(void)
{
if(Rec_Num>=6)
{
if((Rec_Dat=='\n')&&(Rec_Dat=='\r'))
{
if((Rec_Dat=='O')&&(Rec_Dat=='P')&&(Rec_Dat=='E')&&(Rec_Dat=='N'))
{
password=16;
password=16;
password=16;
password=16;
Uart2_SendStr("打开成功！\r\n");
}
else if((Rec_Dat=='C')&&(Rec_Dat=='L')&&(Rec_Dat=='O')&&(Rec_Dat=='S')&&(Rec_Dat=='E'))
{
password=17;
password=17;
password=17;
password=17;
Uart2_SendStr("关闭成功！\r\n");
}
Rec_Num=0;
}
}
}
第十七集：17DS18B20测温 手敲代码测试通过
#include "18b20.h"
u8MinusFlag = 0; //如果等于0 ，正数；等于1，负数
u32 Temp_18b20; //最终的温度，0.0625
void Delay480us(void) //@24.000MHz
{
unsigned long edata i;
_nop_();
_nop_();
_nop_();
i = 2878UL;
while (i) i--;
}
void Delay60us(void) //@24.000MHz
{
unsigned long edata i;
_nop_();
_nop_();
_nop_();
i = 358UL;
while (i) i--;
}
void Delay1us(void) //@24.000MHz
{
unsigned long edata i;
_nop_();
_nop_();
_nop_();
i = 4UL;
while (i) i--;
}
void DS18B20_Reset(void)
{
u8 flag = 1;
while( flag ) //只要括号里的变量大于0，就会一直执行
{
DQ = 0;
Delay480us();
DQ = 1;
Delay60us();
flag = DQ;
Delay480us();
}
}
void DS18B20_Write_0(void)
{
DQ = 0;
Delay60us();
DQ = 1;
Delay1us();
Delay1us();
}
void DS18B20_Write_1(void)
{
DQ = 0;
Delay1us();
Delay1us();
DQ = 1;
Delay60us();
}
bit DS18B20_Read(void)
{
bit state = 0;
DQ = 0;
Delay1us();
Delay1us();
DQ = 1;
Delay1us();
Delay1us();
state = DQ; //暂时保存这个DQ的数值
Delay60us();
return state;
}
void DS18B20_WriteByte( u8 dat )
{
u8 i;
for(i=0;i<8;i++)
{
if( dat & 0x01 ) //最低位是1.发逻辑1电平
{
DS18B20_Write_1();
}
else //否则.发逻辑0电平
{
DS18B20_Write_0();
}
dat >>= 1; //dat = (dat>>1);
}
}
u8 DS18B20_ReadByte(void )
{
u8 i;
u8 dat=0; //数据暂存，
for(i=0;i<8;i++) //循环读取八次
{
dat >>= 1;
if( DS18B20_Read() ) //
{
dat |= 0x80;
}
else
{
}
}
return dat;
}
void DS18B20_ReadTemp(void)
{
u8 TempH = 0;
u8 TempL = 0;
u16 Temp = 0;
//---------------------发送检测命令---------------------
DS18B20_Reset(); //1.发送复位命令
DS18B20_WriteByte(0xcc); //2.跳过ROM命令
DS18B20_WriteByte(0x44); //3.开始转化命令
while( !DQ ); //4.等待这个引脚变成高电平
//---------------------发送读取命令---------------------
DS18B20_Reset(); //1.发送复位命令
DS18B20_WriteByte(0xcc); //2.跳过ROM命令
DS18B20_WriteByte(0xBE); //3.开始转化命令
TempL = DS18B20_ReadByte(); //读取低字节温度
TempH = DS18B20_ReadByte(); //读取高字节温度
if( TempH & 0x80 ) //如果最高位是1，这个就是负数
{
MinusFlag = 1;
Temp = (((u16)TempH << 8) | ((u16)TempL << 0));
Temp = (~Temp) +1;
Temp_18b20 = (u32)Temp*625;
}
else
{
MinusFlag = 0;
Temp = (((u16)TempH << 8) | ((u16)TempL << 0));
Temp_18b20 = (u32)Temp*625;
}
}